Podcaster: Rob Webb
Organization: Physics teacher at Pequea Valley High School
Description: Geminid meteors, lunar close encounters, and even a conjunction all make December of 2018 a pretty active month, along with the longest nights of the year to give you plenty of time to get out there and see something stellar.
Bio: Rob Webb is a physics, astronomy, and sustainability teacher at Pequea Valley High School in Pennsylvania. His passions include teaching, astronomy, astrophotography, planetariums, running, reading, and golf. A proud graduate of Dickinson College in 2005, he also obtained a Master’s Degree in Science Education from Penn State University after conducting research in regards to the current state of planetariums in Pennsylvania. Feel free to contact him at firstname.lastname@example.org
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Geminid meteors, lunar close encounters, and even a conjunction all make December of 2018 a pretty active month, along with the longest nights of the year to give you plenty of time to get out there and see something stellar.
New Moon – 7th (darkest skies)
First Quarter Moon – 15th (Visible until midnight)
Full Moon – 22nd (Visible all night)
Last Quarter Moon – 29th (Visible from midnight into the morning)
3rd – Close Encounter – Moon, Venus – Anytime between 3:40am and 7:08am sunrise, look SE to find a beautiful thin crescent Moon just 5˚ above the beacon that is Venus.
5th – Close Encounter – Moon, Mercury – If you get out after 6:15am with a clear view of your SE horizon, an even thinner crescent Moon will be about 5˚ above Mercury, until dawn washes out the smallest planet.
6th – 7th – Close Encounter – Mars, Neptune – You’ll absolutely need a telescope for this, but check out Neptune being less than 1˚ away from Mars. Use online star charts for specific directions, or just look for the blue-ish dot near red Mars in your scope.
8th – Close Encounter – Moon, Saturn – Find a VERY thin crescent Moon off in the SW after sunset and you’ll see Saturn only 4˚ up and to the left. Make sure you have a clear horizon.
13th, 14th – Geminid Meteor Shower – A decent year for the Geminids, given the moon will be just shy of first-quarter (less than half-lit and setting after 11pm), giving us a shot at over 100 meteors per hour later in the night, depending on your light pollution levels.
Some advice for watching:
Find a dark location and lie down in a reclining chair or swimming pool floaty
Look at the whole sky, but note Gemini is where the radiant is – where the meteors will appear to be coming from. Gemini will be in the East after sunset, South after midnight, West in the morning.
Check the weather to see if the skies will be clear
Adapt your eyes to the dark by staying away from light sources or using a red light if you need to look at a star chart or not trip over something.
Or find out if your local astronomy club or museum is holding a viewing party.
14th – Close Encounter – Moon, Mars – An almost half-lit Moon will get to within 4˚ below Mars tonight.
21st – Conjunction – Jupiter, Mercury – Get out in the morning after 6:20am but before 7ish and look very low in the SE for Jupiter and Mercury side-by-side less than 1˚ apart. Mercury will be on the left and dimmer than Jupiter.
21st – Winter Solstice – The longest night and shortest day of the year for the Northern Hemisphere. More info here: http://www.timeanddate.com/calendar/december-solstice.html
31st – Morning Lineup – Mercury, Jupiter, Venus, and the Moon will all be lined up and almost equidistant apart. Just get out there before dawn.
(see sky map link at the bottom for a Star Map for this month)
Pegasus & Andromeda – Look pretty much straight up you’ll be able to see the Great Square of Pegasus, with Andromeda curving off of one corner. If your skies are decently dark, you might catch the faint fuzz that is the Andromeda Galaxy.
Taurus & the Pleiades – Look almost straight up, but down toward the South a little bit and you’ll find the lovely cluster of stars known as the Pleiades, the Seven Sisters, Subaru, or the mini-mini-dipper. You can easily see 5 or 6 of them with the unaided eye, and perhaps a 7th, depending on light pollution and your eyes. To the left about 5˚ will be the V constellation of Taurus the bull, with bright red Aldebaran as its brightest, and one eye of the bull. Oh, and if you follow a line connecting these two to the left about 10˚, you’ll find Orion.
Leo – Look South, halfway up the sky, to find the backward question mark and right triangle that is Leo the Lion.
Use a sky map from www.skymaps.com to help you out.
End of podcast:
365 Days of Astronomy
The 365 Days of Astronomy Podcast is produced by Planetary Science Institute. Audio post-production by Richard Drumm. Bandwidth donated by libsyn.com and wizzard media. You may reproduce and distribute this audio for non-commercial purposes. Please consider supporting the podcast with a few dollars (or Euros!). Visit us on the web at 365DaysOfAstronomy.org or email us at info@365DaysOfAstronomy.org. This year we will celebrates the Year of Everyday Astronomers as we embrace Amateur Astronomer contributions and the importance of citizen science. Join us and share your story. Until tomorrow! Goodbye!