Topic: Stars & Nebulae
Betelgeuse’s Betelbuddy

Betelgeuse’s Betelbuddy

Last December a paper in the Astronomical Journal led by Morgan MacLeod used decades of data we have on Betelgeuse’s changing brightness to predict that the star has a low mass companion, possibly still in the process of forming, that orbits it every 5.775 years. As luck would have it, last year was when then companion star should be well separated from Betelgeuse on the sky and a group of astronomers led by Steve Howell was able to get telescope time on the Gemini North telescope to see what they could see.  And they quite possibly saw a blob that could be the predicted star at roughly the...

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The mystery of ASKAP J1832-0911

The mystery of ASKAP J1832-0911

A graph of Chandra data and a fit to the data superimposed on an image that combines x-ray, IR, and radio data. Credit: X-ray: NASA/CXC/ICRAR, Curtin Univ./Z. Wang et al.; Infrared: NASA/JPL/CalTech/IPAC; Radio: SARAO/MeerKAT; Image processing: NASA/CXC/SAO/N. Wolk I...

Dying Stars’ Final Artwork

Dying Stars’ Final Artwork

One of the justifications for building the Hubble Space Telescope was to finally get a detailed enough view  of the fuzzy blobs we call planetary nebulae that we could finally understand what is going on. Turns out, for some of the nebulae, we actually needed...

Europa Clipper Joins in on the Star Observing

Europa Clipper Joins in on the Star Observing

It doesn’t take a lot of telescope to make the number of visible stars radically increase, in it turns out even the Europa clipper, with its several centimeter star tracker cameras, has been regularly making its own observations.  The Clipper launched  October 14,...

Don Pettit Proves Stars Can Be Tracked From ISS

Don Pettit Proves Stars Can Be Tracked From ISS

Photo taken by Astronaut Don Pettit from ISS: Milky Way with Zodiacal light and Starlink satellites streaking by. Astronaut Don Pettit is, among many other things, an amateur astronomer. One of the most delightful moments of my life with getting to hear him talk to...

A Star’s Death in Three Acts

A Star’s Death in Three Acts

While monitoring the sky with optical systems, we’ve found some really weird stuff. Back in 2018, the All Sky Automated Survey for Super Novae discovered a brightening galaxy. Follow -up observations in the X-Ray found the kinds of high energy light that signals a...