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Wow very neat! Amazing what we can extract from data sets like this. #astronomy #space #science

Excited to announce paper 3 in our Mapping Stellar Surfaces series, this time on Doppler imaging!

Paper link:

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Wow there is video of the impact too! #astronomy

Impressionnante vidéo du flash sur Jupiter il y a quelques jours. Un astéroïde rentrant dans l’atmosphère de Jupiter a été observé par T. Humbert, S. Barré, A. Desmougin & D. Walliang (Société Lorraine d'Astronomie) depuis l'observatoire d'Astroqueyras , dans les Hautes Alpes!

Kai Kostack did a nice rendering of a horrible event. Telescope model by yours truly.


I never realized how huge Andromeda looks to us. I've never seen a comparative picture like this before. Brilliant! Thank you! #astronomy #Space

Next time you're looking at the Moon know that elsewhere in the sky shines a trillion-star galaxy named Andromeda. Might be hard to believe, but *this* is its true sky-size relative to the Moon. We see only the bright galactic center with naked eyes: to us it appears a fuzzy star

I fist read about that a couple weeks ago and it just astounded me. I also read that the very outer portions of both the Milky Way and Andromeda galaxies are already touching.

Wow this is impressive! #space #astronomy

Dwarf planet Haumea spins so fast (a full rotation in less than four hours) that it’s flattened way out into an ellipsoid, kinda like a pizza being tossed into the air. It’s the fastest spinning thing known in the Solar System above 100 km.

Random image from the archives

APOD: 2003 June 24 - The Sun's Surface in 3D


How smooth is the Sun? The new Swedish 1-m Solar Telescope, deployed in the Canary Islands only last year, allows imaging of objects less than 100-km across on the Sun's surface. When pointed toward the Sun's edge, surface objects now begin to block each other, indicating true three-dimensional information. Close inspection of the image reveals much vertical information, including spectacular light-bridges rising nearly 500-km above the floor of sunspots near the top of the image. Also visible in the above false-color image are hundreds of bubbling granules, each about 1000-km across, and small bright regions known as faculas.

#astronomy #picture #space #NASA #APOD