Garcimor

Sure, Halloween is an astronomy holiday. But astronomers always enjoy scanning the heavens for spook-tacular galaxies, stars, and nebulae. This favorite is item number 43 from the Beverly Lynds' 1962 Catalogue of Dark Nebulae, fondly known as the Cosmic Bat nebula. While its visage looks alarmingly like a scary flying mammal, Lynds Dark Nebula 43 is over 12 light-years across. Glowing with eerie light, stars are forming within the dusty interstellar molecular cloud that is dense enough to appear in silhouette against a luminous background of Milky Way stars. Watch out. This Cosmic Bat nebula is a mere 400 light-years distant toward the serpent-bearing constellation Ophiucus.

🔭 Lynds Dark Nebula 43

Image Credit & Copyright: Team Ciel Austral

star.ucl.ac.uk/~apod/apod/a...

This is a nebula, which is the result of the ejection of gas and dust from a star at the late stage of its evolution.

Astrophotography image of the Dumbbell Nebula (M27), a bright planetary nebula in the constellation Vulpecula, surrounded by a rich field of stars.

This is one of my first astrophotographies, retreated with tools from 2025. M27, taken in 2022 with a 150/750 Newton and a Nikon D7100 (processed on Pixinsight).

#astrophotography

A starfield is shown that has a multi-filament nebula flowing across it horizontally. The most prominent colors are red and blue. Please see the explanation for more detailed information.

🔭 NGC 6960: The Witch's Broom Nebula

Image Credit & Copyright: Brian Meyers

apod.nasa.gov/apod/ap25100...

Schéma illustrant la contraction des longueurs pour différentes vitesses (v nulle, v = 86.6% de c, v = 99.5% de c, et v tend vers c)

Le saviez-vous ?

Plus vous approchez de la vitesse de la lumière, plus la distance entre vous et votre destination RÉTRÉCIT, ce qui permet en théorie, sans briser aucune loi de la physique, d'atteindre n'importe quel point de l'Univers en un temps raisonnable (si vous allez assez vite)

#thread
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Il est très rare d'avoir 2 comètes visibles dans le ciel... et encore plus rare de pouvoir les capturer toutes les deux en un seul cliché :

A new visitor from the outer Solar System, comet C/2025 R2 (SWAN) also known as SWAN25B was only discovered late last week, on September 11. That's just day before the comet reached perihelion, its closest approach to the Sun. First spotted by Vladimir Bezugly in images from the SWAN instrument on the sun-staring SOHO spacecraft, the comet was surprisingly bright but understandably difficult to see against the Sun's glare. Still close to the Sun on the sky, the greenish coma and tail of C/2025 R2 (SWAN) are captured in this telescopic snapshot from September 17. Spica, alpha star of the constellation Virgo, shines just beyond the upper left edge of the frame while the comet is about 6.5 light-minutes from planet Earth. Near the western horizon after sunset and slightly easier to see in binoculars from the southern hemisphere, this comet SWAN will pass near Zubenelgenubi, alpha star of Libra, on October 2. C/2025 R2 (SWAN) is scheduled to make its closest approach to our fair planet around October 20.

🔭 Comet C/2025 R2 (SWAN)

Image Credit & Copyright: Team Ciel Austral

apod.nasa.gov/apod/ap25091...

Ajout de 80 nouveaux sub's sur cette cible. Un total de 7h de poses 🔭. Beaucoup de nouveaux détails. J'adore cette nébuleuse.
Nébuleuse de la bulle / NGC7635
#Celestron C8 Edge HD / Réducteur 0.7 ASI533MC Pro / Mount iOptron CEM40 #Astrophography #Astronomy

A bright nebula occupies the center of the frame. The nebula is complex but roughly tan in the center and red around the edges. In the center are four bright blue stars. Please see the explanation for more detailed information.

🔭 Trapezium: In the Heart of Orion

Image Credit: Data: Hubble Legacy Archive, Processing: Robert Gendler

apod.nasa.gov/apod/ap25081...

Lots of brown/grey molecular space dust in a field of stars

Molecular dust flying about 600 light-years away. This image is about 3.5x2.5 degrees, which means the moon would fit inside the field of view 35 times. Taken with my Takahashi Epsilon in SW New Mexico and processed in my astro-den in Virginia. #astrophotography #photography

The Cygnus Wall in NGC 7000 about 2.500 light years away. Starless with 8" Newton & 2600 mono. ~20 hours of exposure. #astrophotography

📢 J’adresse une lettre ouverte au préfet du Bas-Rhin.
Deux enfants scolarisés à Strasbourg ont été emmenés à Paris pour être expulsés. L’un a été menotté. Leur mère est déjà en Géorgie.
Cette violence d’État est inacceptable.
👉 Les droits de l’enfant doivent primer.

Thank you !

#astrophotography

Waxing gibbous moon, tonight

#astrophotography

The Moon

Tonight

#astrophotography

Les premières images d’Euclid dévoilées au Planétarium Ce mercredi 20 mars, la mission Euclid de l’Agence spatiale européenne a publié son premier lot de données captées par le télescope spatial du même nom. A cette occasion, l’Observatoire astronomique d...

La mission Euclid de l’Agence spatiale européenne a publié son premier lot de données captées par le télescope spatial du même nom.
Ce 19 mars, l'@obsstrasbourg.bsky.social a accueilli des membres de l'équipe française du Consortium scientifique Euclid pour une projection commentée.

@esa.int

Thanks !

NGC 2237, Rosette Nebula

#astrophotography

app.astrobin.com/i/y0e199

IC 410, the Tadpoles Nebula.

More on www.astrobin.com/czmq74/0/

#astrophotography

Thanks :-)

[work in progress] IC 410, Tadpole Nebula (Ha filter)

#Strasbourg

3 panels of a NGC 7000 mosaic, taken with hydrogen alpha filter.

<work in progress>
The sky let me shoot a few hours and I have one more panel. Two more to go.

À peine débarqué d’X qu’il est déjà en mode ouin ouin…

#Aurora on Strasbourg tonight.

Gilles nous partage une magnifique #astrophotographie
Il sagit d'une #nébuleuse qui n'a encore pas de nom officielle connue sous #lbn576.
157 poses de 300 secondes sur 4 nuits pour cet objet situé dans la constellation de #Cassiopée
#astronomy #astronomie #astrophotography #nebula #cassiopeia

The Astronomy feeds now include 11 (!!!) brand new specific subfeeds! 🔭

The subfeeds try to cover every part of astronomy research with at least one feed.

All subfeeds automatically crosspost to the main Astronomy feed, too!

Here's a thread with links to all of them ⬇️

Voici quelques images de planètes de notre système solaire. Djaffar à pris en photo #Mars #Jupiter et #Saturn avec son télescope lors d'une rare nuit avec le ciel découvert
#astronomy #astronomie #astrophotography #astrophotographie #astrodon #solarsystem #planete

Attention, cette cascade est réalisée par un professionnel. Ne reproduisez pas cela chez vous.