The Astronomical Numbers game

[antoniseb]

739 Mandeville, an asteroid, was discovered by Joel Metcalf in 1913, in Winchester MA, where I doubt any future asteroid will ever be discovered from, given the light polution from Boston.

[Eroica]

740 - NSV 740 (http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=5+Trianguli&NbIdent=1&Radius=10&Radius.unit=arcmin&CooFrame=FK5&CooEpoch=2000&CooEqui=2000&output.max=all&o.catall=on&output.mesdisp=N&Bibyear1=1983&Bibyear2=2006&Frame1=FK5&Frame2=FK4&Frame3=G&Equi1=2000.0&Equi2=1950.0&Equi3=2000.0&Epoch1=2000.0&Epoch2=1950.0&Epoch3=2000.0), variable-star designation for the sixth-magnitude star 5 Trianguli.

[Edit: typo]

[ToSeek]

AM 0644-741 (http://antwrp.gsfc.nasa.gov/apod/ap040426.html) is an interesting ring galaxy observed by Hubble.

[Arneb]

Saros cycle 69 (http://sunearth.gsfc.nasa.gov/eclipse/SEsaros/SEsaros1-175.html) of Solar eclipses began in 742 BC

The year 743 was unusual (http://sunearth.gsfc.nasa.gov/eclipse/LEcat/LE0701-0800.html) in that it had 4 Lunar eclipses.

The longest annular Solar eclipse (http://www.reference.com/browse/wiki/Solar_eclipse) in historical times, (Dec. 7, 150 AD) lastet 744 s

[ToSeek]

745 km/sec is, according to Edwin Hubble, the mean velocity of a collection of nearby "nebulae" and part of his basis for concluding that the Hubble constant is on the order of 500 km/sec/megaparsec.

When Saturn is closest to Earth, it is still 746 million miles away.

NASA's Stratospheric Observatory for Infrared Astronomy is housed in a Boeing 747.

[antoniseb]

Cosmonaut Sergei Krikalev broke a record when he spent his 748th day in space.

Supernova 2001dm appeared in NGC 749

750 nm, the central wavelength for the Clementine 750 nm HiRes Mosaic.

[ngc3314]

NGC 751 is an elliptical galaxy forming an interacting pair with NGC 750, variously catalogued as Arp 166, Karachentsev 46, VI Zw 123, and VV 89.

And, as gauche as it may be to use the same catalog for successive numbers, NGC 752 is something quite different - a naked-eye open star cluster in Andromeda, forming a near-isosceles triangle wth M31 and M33.

[ToSeek]

Mars rover Pancam filter L2 is set for a wavelength of 753 nanometers, while R2 is set for 754 nanometers, both right on the border between visible light (red) and near-infrared.

[antoniseb]

Gliese 755 is close to, but probably not a companion of, Gliese 97, a nearby G type star.

756 nm is the red wavelength used in this two color image of Jupiter: http://www.cosmiclight.com/imagegalleries/jupiter.htm

757 seconds, was the duration of the mision duty cycle test of Gemini's orbit attitude and maneuver system (OAMS) 100-pound thrust chamber assembly, in January 1964.

[ToSeek]

The record for most total days in space by a human being is 758, held by Sergei Avdeyev and accumulated during three stays on Mir.

[ngc3314]

The mass of a GPS Block 1 (http://www.astronautix.com/craft/gpslock1.htm) satellite was 759 kg.

[antoniseb]

Psi Aurigae is a B giant located 760 light years from here. Also M3 is a cluster about 760 light years in diameter.

[HenrikOlsen]

Struve 761 is mostly described as a triple star, though some references say that one or two components are themselves doubles.

Asteroid 762 Pulcova has a "moon", which by some very simplistic definitions makes it a planet. :)

Still trying to catch up with the post numbers.

[Eroica]

763 - BU 763 (http://www.alcyone.de/SIT/bsc/HR7787.html), S. W. Burnham's discoverer code for the double star Kappa2 Sagittarii.

764 - STF 764 (http://www.alcyone.de/SIT/bsc/HR1945.html), F. G. W. Struve's discoverer code for the double star HD 37646.

[ToSeek]

One of the earliest solar eclipses mentioned in the historical record is one that took place on 16 June 763 BCE, mentioned in an Assyrian text.

Saturn has 764 times the volume of Earth.

There are currently 764 posts in this thread.

Happy now? ;)

EDIT: ARRGH!!!

Saturn's moon Rhea is 765 kilometers in diameter.

[Arneb]

There are now 766 posts in the Astronomical Numbers thread. :p

More seriously, Gemini X orbited at a maximum altitude of 766 km.

And, just to get the post numbers out of sync again with the astronomical numbers:

Astronomy and Astrophysics 391, 767 - 773 (2002) (http://www.edpsciences.org/articles/aa/pdf/2002/32/aa2523.pdf?access=ok): An improvement in the knowledge of Phoebe's orbit. Should have come in useful for the Cassini flyby!

[ToSeek]

Jupiter was 767 gigameters away when this photo (http://www.solarviews.com/cap/sl9/hst_gimp.htm) was taken.

(I made a heroic effort to sync up. I'm not giving up this quickly!)

[antoniseb]

768 kilometers: the orbital altitude of the FUSE mission.
http://transfuse.pha.jhu.edu/

[jfribrg]

769 - The number of pennies you would need to buy this NASA DVD (http://www.cduniverse.com/search/xx/movie/pid/1200568/a/NASA+2+Pack.htm)

[ToSeek]

Mars Odyssey started out with 769 pounds of propellant.

Cruithne has a horseshoe orbit around the Earth with a period of 770 years.

[Arneb]

Science Vol. 281.; pp. 771 - 773: China's interest in building a big radio dish.

Rigel is 772 light years away.

The 4th stage of Molniya 2L spent 773 days in space before re-entering Jan. 5, 1974

[ToSeek]

774 is the name of a Martian in Raymond Z. Gallun's "Old Faithful."

[antoniseb]

Hmmm. I thought there was some effort to synch up the Astronomical number with the Post number, but we appear to have gone beyond that point.

[antoniseb]

Rigel, the blue supergiant in Orion is 775 light years away.

[ToSeek]

Hmmm. I thought there was some effort to synch up the Astronomical number with the Post number, but we appear to have gone beyond that point.

Arneb messed it up. :evil:

[ToSeek]

In 1995, NASA had 21,060 employees, only 776 of which were scientists.

[ngc3314]

Gliese 777A is a late G type star in Cygnus, with a Jupiter-mass planet, for once in a Jupiter-like orbit (mean distance 5 AU but eccentric). This is a busy neighborhood; the red dwarf Gliese 777B is about 3000 AU away. The system is most noted lately for hosting a Neptune-mass planet in a tight orbit around Gliese 777A.

[antoniseb]

778 Kilometers is the apogee of many of the Iridium satellites.

[Eroica]

779 - HR 779 (http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=Del+Cet&NbIdent=1&Radius=10&Radius.unit=arcmin&CooFrame=FK5&CooEpoch=2000&CooEqui=2000&output.max=all&o.catall=on&output.mesdisp=N&Bibyear1=1983&Bibyear2=2006&Frame1=FK5&Frame2=FK4&Frame3=G&Equi1=2000.0&Equi2=1950.0&Equi3=2000.0&Epoch1=2000.0&Epoch2=1950.0&Epoch3=2000.0) = Delta Ceti, a BCEP variable star of the fourth magnitude.

[ToSeek]

Launch opportunities to Mars occur every 780 days (also known as the Earth-Mars synodic period).

[Arneb]

Arneb messed it up. :evil:

Oh, did I ? :p

[Arneb]

The solid rocket descent system of Surveyor 1 (http://www.bernd-leitenberger.de/surveyor.html) was cut off at a vertical speed of 781 kilofurlongs per fortnight (130 m/s).

[Arneb]

O. K., since you insist :shifty:

A synchronous orbit (http://www.asi.org/adb/06/09/03/02/024/ast2.html) about Ceres would be at an elevation of 782 km.

40 Eridani A, the Sun of ToSeek's home planet (http://www.geocities.com/shirkahr/VulcanAstronomy.html) , has a diameter of 783 kilomiles.

[ToSeek]

France's most experienced astronaut, Jean-Loup Chretien, has 784 hours in space.

[antoniseb]

785 Kilograms was the launch weight of the ACE spaceprobe.

[ToSeek]

786 is the observatory code (http://cfa-www.harvard.edu/iau/lists/ObsCodes.html) for the US Naval Observatory (but only since 1893).

[antoniseb]

787 light years is the distance to Zeta Aurigae

[Arneb]

787 light years is the distance to Zeta Aurigae

According to the Hipparcos star catalogue (http://www.heavens-above.com/hipentry.asp?hip=23453), it's actually 788 light years.

[Arneb]

Saturn' moon Titania has a radius (http://www.phys.uu.nl/%7Estrous/AA/en/woordenboek_frame.html) of 789 km.

[Arneb]

The inner ring (http://www.lpod.org/archive/LPOD-2004-08-31.htm) of the Imbrium basin is 790 km wide

[ToSeek]

RFC 791 defines the Internet Protocol, used to share much astronomical information (including this).

[Arneb]

The speed of light in vacuum is 299 792 458 km / s

[ToSeek]

The Planetary Society's phone number is (626) 793-5100.

[antoniseb]

NGC 794, is a 12.7 magnitude galaxy in Aries.

[ToSeek]

M33 is 795 kiloparsecs away.

[Eroica]

796 - HR 796 (http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=HR+796&NbIdent=1&Radius=10&Radius.unit=arcmin&CooFrame=FK5&CooEpoch=2000&CooEqui=2000&output.max=all&o.catall=on&output.mesdisp=N&Bibyear1=1983&Bibyear2=2006&Frame1=FK5&Frame2=FK4&Frame3=G&Equi1=2000.0&Equi2=1950.0&Equi3=2000.0&Epoch1=2000.0&Epoch2=1950.0&Epoch3=2000.0), a sixth-magnitude star in Cetus.

[ToSeek]

The latest Opportunity Mars rover status report goes up to sol 797.

[antoniseb]

798 nm is an important band for studying Methane-Amonnia in Jupiter's clouds.

[Titana]

NGC 799 and NGC 800 are a close pair of spiral galaxies in the constellation of Cetus.

[antoniseb]

Oops we are out of synch again. No, wait, this numberless post puts us back again.

[Arneb]

But is a numberless post even allowed here? :whistle:

[Arneb]

Saturn was 801 million miles from Earth on 30 November, 2005.

[antoniseb]

Did you mean 801 million miles?

[Arneb]

Thanks, antoniseb - fixed!

[antoniseb]

802 Stars within 25 Parsecs were included in a Rosat (xray) survey by Sterzik & Schmitt (1997)

GJ 803 AKA AU Microscopii (AU Mic) is a star 33 light years from here with a 50 AU radius disk.

804 meters per second was the velocity adjustment for Mars Orpital Insertion by the Mars Express probe.

805 kilograms was the total mass of the NEAR spacecraft which explored Eros.

[Eroica]

806 - FK5 806 (http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=Zeta+Cap&NbIdent=1&Radius=10&Radius.unit=arcmin&CooFrame=FK5&CooEpoch=2000&CooEqui=2000&output.max=all&o.catall=on&output.mesdisp=N&Bibyear1=1983&Bibyear2=2006&Frame1=FK5&Frame2=FK4&Frame3=G&Equi1=2000.0&Equi2=1950.0&Equi3=2000.0&Epoch1=2000.0&Epoch2=1950.0&Epoch3=2000.0) = Zeta Capricorni.

[Arneb]

Even if it comes a bit late, I'd like you to know that it is currently sol 805 for MER Opportunity. (http://marsrovers.jpl.nasa.gov/home/index.html)

An observatory in China was built 806 years ago (in the year 1200 which measured the length of the Solar year using shadow lengths.

UGC 807, (http://www.kopernik.org/images/archive/n450.htm)a spiral galaxy in Cetus.

[ToSeek]

Galileo passed within 808 kilometers of Ganymede on 20 May 2000.

[Titana]

This interesting image of Saturns Moon (http://saturn.jpl.nasa.gov/multimedia/images/raw/raw-images-details.cfm?feiImageID=35805)(Dione) was taken at a distance of aproximately 809,313 kilometers.

[antoniseb]

810 light years is the distance to M39, an open cluster in Cygnus. The blue giant Rigel in Orion is also listed as 810 light years away in some catelogs.

[ToSeek]

The Vulcain 2 rocket engine, used on the Ariane 5, masses 811 kilograms.

[Arneb]

Beautiful Martian North polar dunes from MGS (http://www.msss.com/mars_images/moc/2004/01/10/2004.01.10.R1301127.gif), released 812 days ago.

[mugaliens]

813 Baumeia is a minor planet orbiting the Sun.

[antoniseb]

814 nm is the long wavelength filter used for 34.3 hours while Hubble made the deep field image.

[ToSeek]

Oceanic Flight 815 dumped a whole bunch of people, most of them a lot more attractive than the ones I usually fly with, on an island in the Pacific.

Okay, Altinak is 815 light years away.

[Mungascr]

61 - STS mission number of the first Hubble servicing mission in late 1993.

Or alternatively 61 Cygni the first star to have its parallax measured accurately by Friedrich W. Bessel in 1837-1838.

As for comparing the 55 Cancri system & our Sun's I have it on good authourity (whose name I forget - Asimov? Clarke? Sagan?) that our solar system consists of the Sun, Jupiter and assorted debris! ;)

(Nice game but all the good one's are taken.)

[Titana]

To make a crater in comet Temple 1 the impactor was specified by design to be 816 lbs.


NWA (http://news.bbc.co.uk/1/hi/sci/tech/1387399.stm) 817 was a meteorite found in the Western Sahara in December 2000, and was said to be from Mars.

[Eroica]

816 (which seems to have slipped through the cracks) - NGC 816 (http://www.seds.org/~spider/ngc/ngc.cgi?NGC+816), a galaxy in Triangulum.

818 - FK5 818 (http://www.alcyone.de/SIT/bsc/HR8319.html) = Lambda Capricorni.

[ToSeek]

An 819-day cycle was significant in the Mayan calendar.

[antoniseb]

820 light years is the reported distance to:
- Polaris
- Mu-1 Scorpii
- Alphard
- Zeta Orionis
- All of the above

[mickal555]

821 the amount of images The first Ultraviolet Imaging Telescope, (UIT-1) obtained.

[ToSeek]

The oldest sundial in Germany dates from around 822 CE.

[pghnative]

823 - number of black and white photographs taken by the Apollo 14 astronauts

[mugaliens]

An international team of astronomers including two Australians have found a planetary system that is more similar to ours than any found in the past.
The planet is a gas-giant about 3.5 to 5 times the mass of Jupiter. At an average distance of 824 million kilometres it orbits a star called 55 Cancri in the constellation Cancer, 41 light years from Earth.

http://www.abc.net.au/science/news/stories/s581086.htm

[antoniseb]

825 light years is the distance to the Pencil Nebula
http://home.case.edu/~sjr16/media/hst_heritage_0306.jpg

[Eroica]

826 - Psi9 Aurigae (http://en.wikipedia.org/wiki/Psi9_Aurigae) is approximately 826 light-years away.

[mickal555]

.
Year 827; The first translation of Ptolemy's Almagest into Arabic is made at this time.

[antoniseb]

NGC 828 is a merging galaxy which is strangely deficient in Carbon 13 compared to Carbon 12.

[ToSeek]

NASA told Challenger investigators it was flying with 829 open waivers on what it calls Criticality 1 systems. Those are the ones, which if they failed, could cause the loss of a shuttle and its crew.

- http://www.floridatoday.com/columbia/columbiastory2A3513A.htm

[ToSeek]

The Spirit rover has been on Mars for 830 sols.

[Duane]

831 AD-- Mount Qasiyun observatory near Damascus is built at the request of Abbasid caliph Mamun.

[The_Radiation_Specialist]

832 AD- first anniversary of building Mount Qasiyun observatory near Damascus is at the request of Abbasid caliph Mamun.

[antoniseb]

On June 27th, 1996, Galileo flew within 832 kilometers of Ganymede.

NOAA-M operates in a circular, near-polar orbit of 833 kilometers above the Earth

[ToSeek]

There are 834 known near-Earth objects (NEOs) with a diameter of 1 kilometer or more.

[Duane]

835--the number of posts in this thread!!

[antoniseb]

835 nanometers, an important wavelength with respect to Mars Chemistry: A dark class southeast of the Valles Marineris was identified that has a strong absorption at 835 nm; and (5) There are distinct intermediate albedo regions within Elysium Planitia with relatively high reflectance at 835 nm.

836 years, the time between the last and next Mars-Jupiter occultation: Last: 22 Sep 1387 Next: 2 Dec 2223

[ToSeek]

Orbital calculations indicate that in the year 837 CE, Comet Halley passed within 0.03 AU of Earth, its closest-ever approach.

[Titana]

Cassini took THIS (http://www.universetoday.com/am/uploads/2004-1209rings-full.jpg) image of Saturn's outer C ring on October 29, 2004 when it was 838,000 kilometers away from the planet.

[Eroica]

839 - the Soviet weather satellite Meteor 2-04 (http://www.astronautix.com/craft/meteor2.htm) had a perigee of 839 km.

[antoniseb]

840 light years is the distance to the giant star Regor (AKA Gamma Velorum).

[Eroica]

841 - Pi Aurigae (http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=Pi+Aur&NbIdent=1&Radius=10&Radius.unit=arcmin&CooFrame=FK5&CooEpoch=2000&CooEqui=2000&output.max=all&o.catall=on&output.mesdisp=N&Bibyear1=1983&Bibyear2=2006&Frame1=FK5&Frame2=FK4&Frame3=G&Equi1=2000.0&Equi2=1950.0&Equi3=2000.0&Epoch1=2000.0&Epoch2=1950.0&Epoch3=2000.0) is 841 light-years away.

[Arneb]

The Coriolis spacecraft, launched 6 January 2003, had an initial orbit of 822 x 842 km.

[antoniseb]

843 MegaHerz is the frequency used to observe NGC 253, as described in this 1983 paper.
http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1983PASAu...5..235R

[Titana]

On June 27, 1996 the Galileo spacecraft made its first flyby of Ganymede at a distance of only 844 Km.

[Eroica]

845 - Alpha Pyxidis (http://www.heavens-above.com/hipentry.asp?hip=42828) is 845 light-years way.

[Arneb]

Venera 11 (http://www.mentallandscape.com/V_Venera11.htm) found a surface temperature of 452 °C (846 °F) when it landed on Venus

[antoniseb]

Edge on spiral NGC-3628 is moving away from us at 847 kilometers per second.

[Eroica]

848 - A 848 (http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=HR+1800&NbIdent=1&Radius=10&Radius.unit=arcmin&CooFrame=FK5&CooEpoch=2000&CooEqui=2000&output.max=all&o.catall=on&output.mesdisp=N&Bibyear1=1983&Bibyear2=2006&Frame1=FK5&Frame2=FK4&Frame3=G&Equi1=2000.0&Equi2=1950.0&Equi3=2000.0&Epoch1=2000.0&Epoch2=1950.0&Epoch3=2000.0), discoverer code for the spectroscopic binary HD 35548 in Orion.

[Arneb]

NGC4111 (http://www.astrosurf.com/agerard/observ/canesvenatici.html)has a recessional velocity of 849 km/s wrt to the Sun.

[antoniseb]

850 kiloparsecs is the distance to M33.

[ToSeek]

Cassini flew by Titan at an altitude of 841 miles last October 28.

(Neglected to go to the latest page!)

Abell 851 is a distant galactic cluster.

[ToSeek]

The Apollo astronauts brought back 842 pounds of Moon rocks and soil samples.

The destroyer USS Leonard F. Mason (DD-852) retrieved Gemini VIII astronauts Neil Armstrong and Dave Scott after their emergency reentry and splashdown.

[Arneb]

Wolfe Creek crater (http://www.smh.com.au/news/Western-Australia/Halls-Creek/2005/02/17/1108500208467.html) in Australia has a diameter of 853 meters.

[Arneb]

MER A "Spirit" landed on Mars 854 Earth days ago, on Jan 4th, 4:35 UT.

[antoniseb]

Simon Newcomb succeeded in refining the tables of lunar positions through astounding diligence. For this reason a lunar crater and asteroid 855 are named for him. Work hard, and your name too can be imortalized.

[ToSeek]

QB 856 is where you'll find books about galaxies in a library using the Library of Congress classification system.

[Eroica]

856 - HD 221246 (http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=HD+221246+&NbIdent=1&Radius=10&Radius.unit=arcmin&CooFrame=FK5&CooEpoch=2000&CooEqui=2000&output.max=all&o.catall=on&output.mesdisp=N&Bibyear1=1983&Bibyear2=2006&Frame1=FK5&Frame2=FK4&Frame3=G&Equi1=2000.0&Equi2=1950.0&Equi3=2000.0&Epoch1=2000.0&Epoch2=1950.0&Epoch3=2000.0) in Andromeda is 856 light-years away (so, pace SIMBAD, it's a foreground object and not in the cluster NGC 7686).

:wall:

857 - NGC 857 (http://www.seds.org/~spider/ngc/ngc.cgi?NGC+857) is a galaxy in Fornax.

[Titana]

The lego build-it-yourself (http://news.bbc.co.uk/2/hi/science/nature/3410453.stm)version of Spirit Rover has 858 pieces....:D

[antoniseb]

Struve 859 is a double star that can be resolved with a 4.5 inch reflector telescope on a good night.

[Arneb]

Space Shuttle Atlantis brought (http://encarta.msn.com/encyclopedia_761580679_2/Space_Shuttle.html) 860 kg of supplies to Mir in March 1996. This flight also resulted - inadvertently - in the by then longest stay of an American in space because of, well, schedule delays with Atlantis.

[Duane]

On April 26, 2006 Progress 21 delivered 861KG of propellant to the ISS for use in boosting the station.

[ToSeek]

This Cassini image (http://www.nasa.gov/mission_pages/cassini/multimedia/pia08145.html) was taken using an 862 nanometer infrared filter.

[antoniseb]

863,000 miles is the diameter of the Sun.

[Arneb]

Deep Impact's impactor probe (http://www.ballaerospace.com/di_impactor.html) separated from the flyby probe 864 megameters away from its target.

[ToSeek]

The Swift 865 telescope is a 90mm refractor.

[Duane]

Gliese 866 is a nearby M-dwarf system.

[Duane]

TIROS I had an apogee of 867 KM.

[Eroica]

868 - the Mira-type variable R Horologii (http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=R+Hor&NbIdent=1&Radius=10&Radius.unit=arcmin&CooFrame=FK5&CooEpoch=2000&CooEqui=2000&output.max=all&o.catall=on&output.mesdisp=N&Bibyear1=1983&Bibyear2=2006&Frame1=FK5&Frame2=FK4&Frame3=G&Equi1=2000.0&Equi2=1950.0&Equi3=2000.0&Epoch1=2000.0&Epoch2=1950.0&Epoch3=2000.0) is HR 868 in the Yale Bright Star Catalog. At maximum it's the second-brightest star in the constellation (Vmag 4.7).

[Dave Mitsky]

NGC 869 - The western member (h Persei) of the famous Double Cluster in Perseus

http://antwrp.gsfc.nasa.gov/apod/ap051011.html

http://www.seds.org/messier/xtra/ngc/n0869.html

Dave Mitsky

[antoniseb]

Alnitak (the Southern most star in Orion's belt) is 870 light years away.

[ToSeek]

The Notebooks of Leonardo da Vinci, section XIV:871 addresses "The principles of astronomical perspective."

[Eroica]

872 - Nu1 Bootis (http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=Nu1+Boo&NbIdent=1&Radius=10&Radius.unit=arcmin&CooFrame=FK5&CooEpoch=2000&CooEqui=2000&output.max=all&o.catall=on&output.mesdisp=N&Bibyear1=1983&Bibyear2=2006&Frame1=FK5&Frame2=FK4&Frame3=G&Equi1=2000.0&Equi2=1950.0&Equi3=2000.0&Epoch1=2000.0&Epoch2=1950.0&Epoch3=2000.0) is 872 light-years away.

[antoniseb]

Gliese 873, a highly magnetic red dwarf flare star observed in many studies.

[ToSeek]

Yoda is 874 years old in Attack of the Clones.

One of the first imagined Mars missions (http://www.astronautix.com/craft/stus1957.htm) estimated that it would take 874 days for the mission from start of departure to beginning the return trip.

[pghnative]

Sunspot # (http://antwrp.gsfc.nasa.gov/apod/ap060502.html)875 is unusually active, and quite photogenic.

[Titana]

Gliese 876 is a red dwarf star 15 light years from Earth in the constellation of Aquarius.

[Eroica]

877 - C Velorum (http://en.wikipedia.org/wiki/C_Velorum) is approximately 877 light-years away.

[antoniseb]

The Globalstar satellites orbit 878 miles above the Earth.

[ToSeek]

IC 879 is a distant galaxy being distorted into an apparent S-shape by its neighbor, NGC 5078 (http://www.astrosurf.com/antilhue/ngc_5078.htm).

[Titana]

On July 3, 2005 NASA's Deep Impact spacecraft released it impactor probe and change its trajectory to pass a comfortable distance from comet Temple 1. When it was released the impactor was 880,000 km away from Temple 1.

[ToSeek]

Russian Start 1 boosters can deliver up to 881 pounds (400 kilograms) of payload to orbits located between 250 and 500 miles (400 and 800 kilometers) altitude.

[Arneb]

This (http://berlinadmin.dlr.de/Missions/galileo/Presse/1999F/PIA02513_full.jpg) Galileo image of mountains on Io was taken at a range of 882 km.

[ngc3314]

IC 883 is an infrared-bright merging galaxy with picturesque tidal tails.

NGC 884 is the "other" member of the Double Cluster in Perseus.

[antoniseb]

The Vulcan xray laser transmutes Iodine 134 when lasing photons at 884 KeV.

[Duane]

Many Soviet era propulsion and telemetry systems were desinged by the NII-885 group.

[Eroica]

886 - Algenib (http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=HD+886&NbIdent=1&Radius=10&Radius.unit=arcmin&CooFrame=FK5&CooEpoch=2000&CooEqui=2000&output.max=all&o.catall=on&output.mesdisp=N&Bibyear1=1983&Bibyear2=2006&Frame1=FK5&Frame2=FK4&Frame3=G&Equi1=2000.0&Equi2=1950.0&Equi3=2000.0&Epoch1=2000.0&Epoch2=1950.0&Epoch3=2000.0), or Gamma Pegasi, is HD 886 in the Henry Draper Catalog.

[ToSeek]

There are 887 articles in the Encyclopedia Britannica relating to astronomy.

[Gruesome]

The 888 Space Gun (http://www.toyraygun.com/jap/888spacegun.html).

[ToSeek]

889 nanometers is a common filter onboard planetary probes (Galileo, Cassini) because it's sensitive to methane.

[Eroica]

890 - Delta Cephei (http://en.wikipedia.org/wiki/Delta_Cephei), the original of the species, is 890 light-years away.

[Arneb]

On 6 Sep 2006, asteroid (891) Gunhild will occult (http://www.asteroidoccultation.com/2006_09/0905_891_9457.htm) mag 10.9 star TYC 6950-00931-1 for 5.8 s for viewers on some Indonesian islands.

[antoniseb]

The diameter of Iapetus (a very strange moon of Saturn) is 892 miles.

[Arneb]

893 kg: The weight of GAIA' (http://www.rssd.esa.int/SA-general/Projects/Staff/perryman/gaia-paper.pdf)s service module.

[antoniseb]

The launch weight of Mars Pathfinder was 894 kilograms.

[ToSeek]

Venus can be as hot as 895 degrees Fahrenheit.

[Eroica]

896 - according to Paul Wiegert (http://www.astro.uwo.ca/~wiegert/index.shtml), the Drake equation implies that there are currently 25,000 intelligent civilizations in the Milky Way Galaxy, which means that each civilized planet is approximately 896 light-years from its nearest neighbour.

[ToSeek]

One of the fragments of the Cape York meteorite on exhibit in the American Museum of Natural History and nicknamed "The Dog" weighs 897 pounds.

[antoniseb]

Gliese 898 is a K5 dwarf located 45 light years from the Sun.

[antoniseb]

899 AD, A shower of meteors flowing from the pole down to the horizon was recorded in Annales Xantenses.

[Arneb]

900 mm, the focal length of my (http://www.teleskop-service.de/Orion/luxus.htm#200) much-loved Newtonian.

[Eroica]

901 - the fourth-magnitude star 9 Pegasi (http://www.heavens-above.com/hipentry.asp?hip=107348) is approximately 901 light-years away.

[ToSeek]

Arab mathematician and astronomer Thabit (http://en.wikipedia.org/wiki/Thabit_ibn_Qurra) died in 901 CE. Among his accomplishments were determining the sidereal year to within two seconds of the correct value.

Intelsat 901 is a communications satellite that provides access to NBA TV.

If you come to the US to study astronomy, you'll have to fill out a form I-901 with the Department of Homeland Security.

Marshall Space Flight Center's toll-free information number is (888) 901-NASA

(I knew if I messed about I was going to get pre-empted!)

Meade #902 is an electronic eyepiece for telescopes or spotting scopes.

[Arneb]

Funny little thing: Asteroid (903) Neally (http://neo.jpl.nasa.gov/cgi-bin/db_shm?sstr=903&group=all&search=Search), named (the German Wikipedia entry has it) "after an American amateur astronomer", but discovered by Austrian (professional) astronomer Johann Palisa, with 123 asteroid discoveries under his belt (the English Wikipedia version (http://en.wikipedia.org/wiki/Johann_Palisa) says 122). The internet is unusually silent about Neally. Anyone know any source about him?

[antoniseb]

Intelsat 904 at 60.0°E provides digital television to Russia, Afganistan and Iran.

[Arneb]

Cosmos 905 (http://www.friends-partners.org/partners/mwade/chrono/19772.htm), a Soviet military surveillance satellite.

[ToSeek]

Astronaut Ken Cockrell has spent over 906 hours in space.

[antoniseb]

NGC 4380 is a small Virgo Cluster member with a red shift of 907 km/sec.

[ngc3314]

Section 908 of Leonardo da Vinci's notebooks (http://www.fromoldbooks.org/Richter-NotebooksOfLeonardo/section-14/item-908.html) discusses how the properties of halos seen around the Moon relate to various levels of the atmosphere.

[Eroica]

908 - NGC 908 (http://www.noao.edu/outreach/observers/n908.), a starburst galaxy in Cetus.

edit by antoniseb: Note that sn 2006ce was just observed in this galaxy.

[ngc3314]

909 km - typical altitude for a slightly retrograde sun-synchronous orbit. This is popular for Earth-resource satellites (like Japan's MOS-1), and IRAS used a similar orbit so it could always point its solar arrays in one direction while surveying the whole sky twice a year.

[ngc3314]

Cosmos 910 was an ASAT test launched from Baikonur in 1977.

NASA 911 is one of the two Shuttle Carrier Aircraft.

912 Angstroms is the wavelength of a photon just able to ionize a hydrogen atom. This wavelength is therefore important in stellar atmospheres, galaxy spectra, and quasar spectra. Did I say important? It's really really important, basic, fundamental, where many things change... And also thereby marks the boundary between the far- and extreme-ultraviolet, beause living in a galaxy full of hydrogen makes it very hard to see any distance at wavelengths just shortward of 912.

(Got it! And since Eroica was racing and I messed up post numbers anyway...)

[ToSeek]

House Resolution 912 authorized "the Administrator of the National Aeronautics and Space Administration to establish an awards program in honor of Charles 'Pete' Conrad, astronaut and space scientist, for recognizing the discoveries made by amateur astronomers of asteroids with near-Earth orbit trajectories."

[Duane]

Ceres is the largest asteroid at 913 KM in diameter.

[ToSeek]

In the standard southern hemisphere star survey "Cordoba Durchmusterung", Canopus is CD-52°914.

[Eroica]

915 - Mintaka, or Delta Orionis (http://simbad.u-strasbg.fr/sim-id.pl?Ident=V%2A%20del%20Ori&Epoch1=2000%2E0&Epoch2=1950%2E0&Epoch3=2000%2E0&output%2Emes=o%2Ecatall%2C&NbIdent=1&output%2Emax=all&Equi1=2000%2E0&Equi2=1950%2E0&FrameList=FK5&Equi3=2000%2E0&Radius=10&EpochList=2000%2E0&CooFrame=FK5&Bibyear1=1983&EquiList=2000%2E0&CooEpoch=2000&Bibyear2=2006&protocol=html&output%2Emesdisp=N&CooEqui=2000&Radius%2Eunit=arcmin&Frame1=FK5&Frame2=FK4&%2Dsource=simbad&Frame3=G), is about 915 light-years away.

[ToSeek]

NASA's Mars rover website received over 916 million hits during the first four days after Spirit's arrival.

[antoniseb]

Sn 2002eh appeared in NGC 917.

[ToSeek]

Phobos orbits Mars twice every 918 minutes, while Deimos's orbital period is sqrt(918) hours. Some people (http://www.tmgnow.com/repository/mars/bartjordan_1.html) think this is significant.

[Eroica]

919 - STF 919 is the discover code for the binary star Beta Monocerotis (http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=Bet+Mon&NbIdent=1&Radius=10&Radius.unit=arcmin&CooFrame=FK5&CooEpoch=2000&CooEqui=2000&output.max=all&o.catall=on&output.mesdisp=N&Bibyear1=1983&Bibyear2=2006&Frame1=FK5&Frame2=FK4&Frame3=G&Equi1=2000.0&Equi2=1950.0&Equi3=2000.0&Epoch1=2000.0&Epoch2=1950.0&Epoch3=2000.0).

[antoniseb]

920 light years from here are Tau Serpentis, Omega Canis Majoris, and Mintaka (a star in Orion).

[ToSeek]

Project 921 was the code name for China's manned space flight program.

[antoniseb]

922 AD: Anaritius died. He wrote a book about the spherical astrolabe.

[Duane]

SIRTF (Space Infrared Telescope Facility), the last of NASA's Great Space Observatories, weighed 923 KG when it was launched on Aug 25, 2003.

[ToSeek]

The phone number of the astronomy department at the BA's alma mater (UVA) is (434) 924-7494.

[Titana]

NGC 925 is a faint spiral galaxy in the constellation Triangulum.

[jfribrg]

926 - Diameter, in kilometers, of Ceres

[ToSeek]

926 - Diameter, in kilometers, of Ceres

Or is it 913 (http://www.bautforum.com/showpost.php?p=744648&postcount=913)?

Senate bill S.927 addressed NASA's funding for fiscal year 1966, its all-time peak year for funding.

[Eroica]

928 - 928 km was the apogee of one of the Surcal (http://www.astronautix.com/chrono/19693.htm) satellites, which were launched by the USA in 1969 as part of an investigation of "spaceflight techniques and technology".

[Duane]

Or is it 913 (http://www.bautforum.com/showpost.php?p=744648&postcount=913)?

Well, isn't that interesting. 1 (http://www.projectpluto.com/big_ast.txt),2 (http://www.ipac.caltech.edu/iso/gtotext/THENCRE.GALSAT.txt),3 (http://www.kirschfoundation.org/done/out_neo.html),4 (http://spaceguard.esa.int/NScience/neo/neo-what/asteroid.htm),5 (http://www.emsb.qc.ca/laurenhill/science/00scsoln.html),6 (http://www.tricity.wsu.edu/~hudson/Research/Asteroids/qa.htm) for 913.

1 (http://hubblesite.org/reference_desk/glossary/asteroids_.and._meteors.shtml), 2 (http://mysite.wanadoo-members.co.uk/blobrana/database/key.html#C), 3 (http://www.redorbit.com/astrobio_glossary/a/) for 926. I also came across a couple at 933, one which claims 923.6 and several which say "about" 1000 km or "about" 950KM. I guess I should alter mine to say "913 which some say is the diameter..."

[Duane]

Abu Abdallah Muhammad Ibn Jabir Ibn Sinan al-Battani al-Harrani (better known as Abu Abdallah Al-Battani) considered by some to be the greatest Islamic astrologer, dies in 929 AD.

[Eroica]

930 - BU 930 is the discoverer code for the sixth magnitude double star HD 113847 (http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=HD+113847&NbIdent=1&Radius=10&Radius.unit=arcmin&CooFrame=FK5&CooEpoch=2000&CooEqui=2000&output.max=all&o.catall=on&output.mesdisp=N&Bibyear1=1983&Bibyear2=2006&Frame1=FK5&Frame2=FK4&Frame3=G&Equi1=2000.0&Equi2=1950.0&Equi3=2000.0&Epoch1=2000.0&Epoch2=1950.0&Epoch3=2000.0) in Centaurus, discovered by S. W. Burnham.

931 - NGC 931 (http://www.messier45.com/cgi-bin/dsdb/dsb.pl?ss=114824012773597&str=NGC+931) is an active galaxy in Triangulum.

[ToSeek]

The NEAR Shoemaker spacecraft executed a maneuver on January 10, 1999, that changed its velocity by 932 meters per second, resulting in a second rendezvous with Eros on February 14, 2000, when a further maneuver put NEAR into orbit.

[Arneb]

(1) Ceres has a mean diameter (http://solarsystem.nasa.gov/planetselector.cfm?Object=Asteroids) of 933 km (actually, 909x975 km).

[antoniseb]

934 AD, Calvisius records a Solar Eclipse on 16 April.

[ToSeek]

The Clementine Moon/asteroid probe weighed 935 pounds.

I thought I'd put in that Ceres' diameter (http://library.thinkquest.org/C0126543/comets.htm) is 935 kilometers, but I managed to restrain myself.

[Eroica]

936 - according to Dodson et al. (http://www.journals.uchicago.edu/ApJ/journal/issues/ApJ/v596n2/57919/57919.html), the Vela Pulsar (http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=Vela+Pulsar&NbIdent=1&Radius=10&Radius.unit=arcmin&CooFrame=FK5&CooEpoch=2000&CooEqui=2000&output.max=all&o.catall=on&output.mesdisp=N&Bibyear1=1983&Bibyear2=2006&Frame1=FK5&Frame2=FK4&Frame3=G&Equi1=2000.0&Equi2=1950.0&Equi3=2000.0&Epoch1=2000.0&Epoch2=1950.0&Epoch3=2000.0) is 936 light-years away. (Other sources quote 800 light-years!)

[ToSeek]

HR 937, also known as Iota Persei, is one of the top 100 candidates for the Terrestrial Planet Finder.

[Duane]

The Cassini probe used a narrow band filter centered at 938 nanometers to obtain near infrared mages of Titan's surface.

[ToSeek]

Sputnik 1, the first artificial satellite, was launched into an orbit with an apogee of 939 kilometers.

[Eroica]

940 - a star whose absolute and apparent magnitudes differ by 7.25 (the absolute magnitude being the smaller) is approximately 940 light-years away.

[antoniseb]

April 941 AD, a brilliant comet appeared in the West and looked like a white rainbow with a small head.

[NASA Fan]

33: STS 33. First and only mission for Sonny Carter who later died in an aircraft accident. It was also a DOD flight, and the third night launch.

[Arneb]

Sorry, NASA fan, but 33 was long ago (http://www.bautforum.com/showthread.php?t=19468&page=2). We actually counted up from 1 to 941 - you have to make it fit....

Like,

The neutron star in the crab nebula, at a frequency of 30 Hz, has a rotational speed of 942 km/s at the equator if the star has a diamter of 10 km.

A Tsyklon 2 (http://www.astronautix.com/lvs/tsyklon2.htm) rocket transported Cosmos 724 to an orbit of 852 x 943 km.

We also try to keep the post number aligned to the number we post about, hence the two numbers featured in this post. :)

[antoniseb]

It was 944 years between when the Crab nebule first appeared as a bright spot in our sky and when the Chandra x-ray observatory got the amazing image of the disk and jets.

BTW, 33 (the number of milliseconds between Crab pulses) will tend to be our most reported number, because people who accidentally look at the first page will always think that one is next.

[ToSeek]

Mariner 6 and 7 took images composed of 704 lines consisting of 945 pixels each.

[Eroica]

946 - BU 946 is the discoverer code for the double star HD 141675 (http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=HD+141675&NbIdent=1&Radius=10&Radius.unit=arcmin&CooFrame=FK5&CooEpoch=2000&CooEqui=2000&output.max=all&o.catall=on&output.mesdisp=N&Bibyear1=1983&Bibyear2=2006&Frame1=FK5&Frame2=FK4&Frame3=G&Equi1=2000.0&Equi2=1950.0&Equi3=2000.0&Epoch1=2000.0&Epoch2=1950.0&Epoch3=2000.0) in Draco.

[antoniseb]

On 26 November 947, The Wu-tai-shih reported that there was a black spot on the Sun the shape of a hen's egg. (I Believe this was a transit of Mercury).

[Tensor]

948 the area, in square degrees, of the constalation Ophiuchi.

[Arneb]

Saturn's moon Rhea (http://www.space.com/php/multimedia/imagegallery/igviewer.php?imgid=3049&gid=229) has a diameter of 1528 km (949 miles).

[ToSeek]

Cassini's early close flybys of Titan were originally planned to be at 950 km, until planners raised the altitude to 1,025 km due to concerns with the atmosphere of Titan affecting Cassini's attitude control.

[Arneb]

On October 26, 2028, the near-Earth asteroid 1997 XF11 (http://neo.jpl.nasa.gov/news/1997xf11.html) will make a close approach to Earth, missing it by 951 megameters.

[Arneb]

952 years ago: The great daylight supernova of 1054 (http://www.garretwilson.com/essays/science/supernova.html).

[antoniseb]

952 kilometers: On December 8th, 1990, at 12:35 PM PST, the Galileo space probe passed 952 kilometers from the Earth in a gravity assist maneuver on its way to Jupiter. Also, some sources list the diameter of the asteroid Ceres as 952 Kilometers.

953 years old. - In the science inspiring series Dr. Who. In the episode "Time and the Rani" the Doctor says he is 953 years old.

[Arneb]

Mars Global Surveyor MOC release No. MOC2-953 (http://www.msss.com/mars_images/moc/2004/12/27/), of December 27, 2004, shows ripples and dunes (http://www.msss.com/mars_images/moc/2004/12/27/2004.12.27.R2201190.gif) in Herschel crater.

[Arneb]

Oh, oh, how are we going to get synchronized again...;) )

Well, let's take two more images:

Release MOC2-954 (http://www.msss.com/mars_images/moc/2004/12/29/), an eroded hill in the Deuteronilus region;
Release MOC2-955 (http://www.msss.com/mars_images/moc/2004/12/28/), a degraded crater wall in the Northern plains crisscrossed by dust devil trails.

[antoniseb]

March 956, a bright comet appeared in Orion with rays pointing Southeast.

[Titana]

The largest asteroid in the solar system (Ceres) measures approximately 957 km across.

[ToSeek]

Venera 3, the first artificial object to contact another planet (Venus, March 1966), weighed 958 kilograms.

[Eroica]

959 - UZ Lyncis (http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=UZ+Lyn&NbIdent=1&Radius=10&Radius.unit=arcmin&CooFrame=FK5&CooEpoch=2000&CooEqui=2000&output.max=all&o.catall=on&output.mesdisp=N&Bibyear1=1983&Bibyear2=2006&Frame1=FK5&Frame2=FK4&Frame3=G&Equi1=2000.0&Equi2=1950.0&Equi3=2000.0&Epoch1=2000.0&Epoch2=1950.0&Epoch3=2000.0) is also known as BD +59 959.

[antoniseb]

960 light years is the distance to HH32 seen here:
http://burro.astr.cwru.edu/stu/media/hst_heritage_9910_4.jpg

[ToSeek]

The Deep Impact flyby spacecraft continued imaging for 961 seconds after impact.

The telephone exchange for the Marshall Space Flight Center is 961.

[Arneb]

According to the "Annuale inchiesta scientifica su Babbo Natale" (http://www.conecta.it/geo/balnatal.htm), the "yearly scientific investigation on father christmas", his sled has to move at 962 km/s if he wants to fulfil all his obligations.

Truly astronomical :razz:

[antoniseb]

963 Stars are listed in 3149 BHN "A List of MK Standard Stars (Garcia, B. 1989, CDS Bull. No. 36, p. 27)"

[ToSeek]

The first recorded observation of the Andromeda Galaxy was in 964 CE, by the Persian astronomer 'Abd Al-Rahman Al Sufi, who described it as a "small cloud".

On October 14, 1947, Chuck Yeager, piloting a Bell X-1, achieved a speed of 964 mph, the first time the sound barrier had been exceeded in controlled level flight (not really astronomy-related, but I thought I'd throw it in).

[antoniseb]

965 AD, Alhazen was born. His treatises on Optics and experiments established the lens, the parabolic mirror, and the camera obscura (pinhole camera) as tools. He also determined by looking at stellar twinkling that the atmosphere had a finite depth of about ten miles.

[mickal555]

966 Muschi is a minor planet orbiting the Sun

[antoniseb]

967 MeV is the confined state plus scattering state energy for the J=1/2- pentaquark.

[Duane]

In 968 AD Diaconus publishes "Annales Sangallenses" in which the first recorded mention of the solar corona is made.

[ToSeek]

The authoritative reference work, Space Mission Analysis and Design (3rd edition) is 969 pages long.

[antoniseb]

970 light years from here to the Dumbbell Nebula (M27)

[Eroica]

971 - NGC 971 (http://www.seds.org/~spider/ngc/ngc.cgi?971) is a galaxy in Triangulum.

[Duane]

Hygens' nominal mission required only 972 W/h of power, although it was built with redundancies that raised the available battery power to 1167 W/h.

[Tensor]

973 AD Birth year of Al-Biruni (http://www.unhas.ac.id/~rhiza/saintis/biruni.html) who made several astronomical and physics (plus a few other disciplines) contributions.

[ToSeek]

The Mariner 8 and 9 Mars orbiters massed 974 kilograms each. (Mariner 8 failed on launch; Mariner 9 was the first spacecraft to orbit Mars.)

[Arneb]

Ceres's equatorial diameter is 975 km.

[ToSeek]

The Deep Impact spacecraft had a mass of 976 kilograms.

[ToSeek]

American astronauts spent a total of 977 days aboard the Russian space station Mir.

[Eroica]

978 - Messier 27 (http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=M27&NbIdent=1&Radius=10&Radius.unit=arcmin&CooFrame=FK5&CooEpoch=2000&CooEqui=2000&output.max=all&o.catall=on&output.mesdisp=N&Bibyear1=1983&Bibyear2=2006&Frame1=FK5&Frame2=FK4&Frame3=G&Equi1=2000.0&Equi2=1950.0&Equi3=2000.0&Epoch1=2000.0&Epoch2=1950.0&Epoch3=2000.0), the Dumbbell Nebula, is estimated by some sources to be 978 light-years away.

[ToSeek]

Minor planet 979 Ilsewa was discovered in 1922.

[ToSeek]

Persian scientist Avicenna was born in the year 980 CE. Known mostly for his work in medicine, he also wrote on astronomy, physics, and many other subjects.

The Hipparcos mission measured the distance of Delta Cephei, the star that gave its name to the Cepheid variables, as 980 light years.

The failed Mars Observer mission cost 980 million dollars, though its failure didn't cause nearly as much fuss as the dual failures of the Mars Climate Orbiter and Mars Polar Lander, which together only cost about 300 million dollars.

Mars Global Surveyor gets a maximum of 980 watts of power from its solar arrays.

[Arneb]

Ngc 981, a beautiful (http://www.warren-wilson.edu/%7Ephysics/PhysPhotOfWeek/20051111Galaxy/index.shtml) edge-on in Cetus, and found in some people's avatars on this forum.

[ToSeek]

The maximum dynamic pressure from the atmosphere (max Q) on John Glenn's Friendship 7 spacecraft was 982 pounds per square foot.

[Eroica]

983 - BU 983 is the discoverer code for the double star QR Vulpeculae (http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=QR+Vul&NbIdent=1&Radius=10&Radius.unit=arcmin&CooFrame=FK5&CooEpoch=2000&CooEqui=2000&output.max=all&o.catall=on&output.mesdisp=N&Bibyear1=1983&Bibyear2=2006&Frame1=FK5&Frame2=FK4&Frame3=G&Equi1=2000.0&Equi2=1950.0&Equi3=2000.0&Epoch1=2000.0&Epoch2=1950.0&Epoch3=2000.0), which is also a variable star (Gamma Cassiopeiae-type).

[ToSeek]

The first close-up images of Phobos, taken by Mariner 9, showed craters as small as 984 feet.

edit by antoniseb: 984 CE, Chinese astronomers observed Venus occulting rho Leonis.

[ngc3314]

NGC 985 is a cool-looking Seyfert galaxy, pulled into a distorted ring with the nucleus on one side.

[ToSeek]

Persian astronomer 'Abd Al-Rahman Al Sufi (http://en.wikipedia.org/wiki/%27Abd_Al-Rahman_Al_Sufi) ("Azophi") died in 986 CE.

[Eroica]

987 - the German astronomer Christopher Clavius (http://en.wikipedia.org/wiki/Christopher_Clavius) died in the Armenian year 987. That's 1612 in the Gregorian calendar, of which he was the principal architect.

[ToSeek]

USGS publication I-988 is a topographic map of the Cydonia region of Mars.

[ngc3314]

N III (the spectroscopic designation for N++, doubly ionized nitrogen) has an absorption line at 989 Angstroms, which is seen in hot stars from their expanding winds as well as hot interstellar gas. This spectral feature has been extensively observed using the FUSE satellite.

[Eroica]

990 - Yerkes (http://en.wikipedia.org/wiki/990_Yerkes) is Asteroid 990, the first of four discovered in 1922-23 at Yerkes Observatory.

[ToSeek]

According to the Library of Congress classification, astronomy books are numbered from QB 1 through QB 991.

[antoniseb]

NGC 992 is a galaxy in Aries studies for atomic Hydrogen abundances AND the name of a little known band.

[ToSeek]

Deneb is 993 parsecs away.

[antoniseb]

Ulugh Beg's Zij-i Sultani of 1437 was an accurate catalog of 994 stellar positions.

[antoniseb]

995 CE, a great comet appeared on August 10th, and was visible for 80 days.

[Eroica]

996 - 996 Hilaritas (http://en.wikipedia.org/wiki/996_Hilaritas), an asteroid with a funny name. :)

[antoniseb]

997 light years is the derived distance to beta Camelopardalis using Hipparcos data. Note, at this distance, Hipparcos data is not very accurate. This 4th magnitude G0Ib-type star is a giant.

[antoniseb]

998 CE, Abul Wafa died. Abul Wafa Muhammad Ibn Muhammad Ibn Yahya Ibn Ismail al-Buzjani. He was a mathematician and astronomer. In astronomy mostly known for studies of the subtle motions of the moon.

[Arneb]

The Canadian Cloudsat (http://c3vp.org/sat/cldsat_calipso.html) had a launch weight of 999 kg.

[Arneb]

And it's exactly 1000 ago that another guest star (http://antwrp.gsfc.nasa.gov/apod/ap030317.html) appeared in the year 1006. At mag -7.5, SN1006 was probably the brightest supernova in recorded history.