The Witch Head Nebula 🧙‍♀️

It sits next to bright Rigel in Orion. You can see a little bit of the star glow at top right.

Being a reflection nebula, this thing doesn’t glow in pink or blue like emission nebulae do. All you’re seeing is star light bouncing off “dust”. Which is this case is more
like smoke; very fine particles mixed in with the usual gas.

If you look carefully, you’ll see a scattering of background galaxies dotted around the image.

#astrophotography #space #astrodon

Turns out the objects in a supernova star system can take quite the pounding, blasted nubbins could be orbiting stellar remnants with exotic surfaces like our lemon friend from the previous post.

Wild to think that 'invaders' from the nearby galaxy of the Large Magellanic Cloud are shooting through the Milky Way!

https://www.astronomy.com/science/can-a-binary-companion-survive-a-supernova-blast/

#Astrodon #Space #HypervelocityStars #Astronomy #LargeMagellenicCloud

Can a binary companion survive a supernova blast?

When a supernova explodes, it doesn’t destroy its companion star — or any planets that might be orbiting it.

Astronomy Magazine

When is an Exoplanet not really a planet? When it's PSR J2322-2650b
It might be the remnant of the primary's much smaller companion, a red dwarf star with much of itself blasted away while it's primary was in it's violent giant and supernova phase.
Amazingly a nubbin of the Companion can survive all that and be classed as a 'planet' rather than a 'star', at least that's how I understand it from this article.

https://www.astronomy.com/science/jwst-discovers-a-strange-exoplanet-that-orbits-a-pulsar/

#Astrodon #PSRJ23222650b #Explanets #Space

JWST discovers a strange exoplanet that orbits a pulsar

Researchers found that this world has a bizarre atmosphere and that it is distorted by gravity into the shape of a lemon.

Astronomy Magazine
Tomando / Observando el Sol
#Astrodon #astrophotography #sun #sol

#MPSGoettingen wishes you happy holidays and a healthy and successful New Year 2026!

Featuring prominently on our season's greetings card: the first images of the Sun's south pole 🛰️ ☀️

During its flyby of the Sun at the end of March this year, the Solar Orbiter space probe had its first clear view of our star's poles. Solar Orbiter's trajectory has recently been tilted 17 degrees relative to the Sun's equator, allowing measurements from this unique perspective for the first time. As the new observations impressively show, the magnetic field at the poles is currently in a state of turmoil.

In addition to the images of the sun's south pole taken by the Solar Orbiter spacecraft, the past year has brought us many other highlights: exciting scientific results and important awards. Read more at https://www.mps.mpg.de/en/season-s-greetings-2025

#2025 #wrapped #wrapped2025 #Jahresrückblick #SolarOrbiter #Sun #Space #SolAustralisIncognitus #2026 #NewYear #Goettingen #Astrodon

A new paper by Zolotarev & Shustov has cited REBOUND:
On the mass indices of meteor bodies https://ui.adsabs.harvard.edu/abs/2025IAUS..374...70Z/abstract #nbody #astrodon
A new paper by Shustov & Zolotarev has cited REBOUND:
Dynamic evolution scale of NEA population: dependence on the initial orbital parameters https://ui.adsabs.harvard.edu/abs/2025IAUS..374...39S/abstract #nbody #astrodon
na da hab ich die besinnlichen Tage gut genutzt. #Astrodon
A new paper by Liu et al. has cited REBOUND:
Double Hot Jupiter Formation through Mirrored ZLK Migration in Binary Star Systems: The Case of WASP-94 https://ui.adsabs.harvard.edu/abs/2025arXiv251218108L/abstract #nbody #astrodon