M110, aka NGC205, has a "wallflower existence" in Messier's famous catalogue. Although originally observed by Charles Messier in 1773, it never made it to his catalogue until it was added as its last entry not earlier than 1966! bit.ly/4lB3t…🔭#astrophotography🔭📷

IAU H1 Seminar, September 15th: Gaia: 10.5 Years of Surveying the Milky Way and Beyond; Anthony Brown; The full recording is now available to the public. Enjoy! www.youtube.com/watch?v=2V3Z...

👇👇👇👇💪💪💪💪🙏🙏🙏🙏

Astrobin image of the day 👇👇👇👇💪💪💪💪 https://app.astrobin.com/i/oxpm7f

Berlin Main Station, the rising Sun in my back

HiRes spectrograph of 4MOST being lifted into the VISTA telescope, the two LoRes are already in the basement. (photos by Andreas Kelz @aippotsdam.bsky.social )

vdB 133 is a reflection nebula powered by the yellow supergiant 44 Cygni. Its warm color makes the nebula appear white rather than the blue of reflection nebula powered by hotter stars. Adjacent is the large HII region LBN219. bit.ly/4lB3t68 🔭#astrophotography🔭📷

Moon, the day after …

eclipse!

The NGC 70 group, aka VV166 or Arp 113 is a quite appealing object. It shows galaxies of various morphologies and the mutual proximity triggers bar instabilities, deformations and lots of tidal debris. bit.ly/4lB3t68 🔭#astrophotography🔭📷

vdB 126 a.k.a. "Nessie" or "the fleeing brontosaurus" bit.ly/4lB3t68 🔭#astrophotography🔭📷

There is a tongue-in-cheek unit of volume called the Hubble-barn, equal to the volume of a cylinder with cross-sectional area of one barn (100 fm^2 - about the size of a uranium nucleus) and height of one Hubble length (14.4 billion light years). It works out to three and a half gallons.

M81 a.k.a. Bode's galaxy. Interestingly, this galaxy has two types of dust features - the more circular ones are part of M81, while the (fainter) straight lines as absorption features caused by our very own Milky Way bit.ly/4lB3t68 🔭#astrophotography🔭📷

Shrimp nebula Sh2-188 as Sii gilded HOO bit.ly/4lB3t68 🔭#astrophotography🔭📷

reprocessed mosaic of M33. Considerations: a) overall appearance blue but a yellowish core b) blue mostly from individual young stars in spiral arms, yellow from older unresolved stars c) red Halpha & brown molecular bands clearly visible but not „in your face“. bit.ly/4lB3t68 🔭#astrophotography🔭📷

The Rho Ophiuchi cloud complex - one of the most colorful regions on the night sky. bit.ly/4lB3t68 🔭#astrophotography🔭

How would the fireworks galaxy NGC6946 look like if it would not be located close to the Galactic plane? I estimated the reddening using a Schlegel&Finkbeiner dust map, the further process is as similar as possible to the original. bit.ly/4lB3t68 🔭#astrophotography🔭📷

The famous summer object NGC7000, a.k.a. the Northamerica nebula, using Sii guilded HOO rather than SHO. This palette give a more red-blue dominant HOO-like look with areas of considerable Sii emission being orange-yellow. bit.ly/4lB3t68 🔭#astrophotography🔭📷

NGC1499, the California nebula, is a HII region in Perseus discovered by Edward Barnard in 1885. It extends for more than 2.5° on the sky and is a frequently targeted object for wider field setups. bit.ly/4lB3t68 🔭#astrophotography🔭📷

The Iris Nebula NGC7023 bit.ly/4lB3t68 🔭#astrophotography🔭📷

Last April, I imaged NGC 5945. Well, it seems that I also got the fading SN2024aduf app.astrobin.com/u/GalacticRA... 🔭#astrophotography 🔭📷

👇👇👇👇💪😍 astrobin image of the day https://app.astrobin.com

The Cepheus region is a more busy part of the Milky Way: emission nebula like the Elephant trunk or the Squid nebula, dark clouds like Barnard 150, galaxies like NGC 6946 and the open star cluster NGC 6939, all in one image. bit.ly/4lB3t68 🔭#astrophotography🔭📷

Cosmic contrasts - the seahorse nebula Barnard 150 with open clusters NGC 6939 and the fireworks galaxy NGC 6946 bit.ly/4lB3t68 🔭#astrophotography🔭📷

To search for Earth-like planets our Plato mission will use 26 cameras in a design inspired by the compound eyes of insects. The mission will spot any slight dimming or brightening of a star when a planet passes in front of it. Learn more about Plato's 'eye' 👉 www.esa.int/Science_Expl... 🔭

Gestern begrüßten Matthias Steinmetz @galacticrave.bsky.social und Martin Roth vom AIP die Botschafterin der Niederlanden 🇳🇱 Frau Hester Somsen und ihre Delegation im Großen Refraktor 🔭 und Einsteinturm auf dem Telegrafenberg. Organisiert von #OpTecBB mit Präsentationen aus der Optik- und #Photonik.💫

The German Leibniz Information Centre for Science and Technology (TIB) has created an archive of the arXiv, to prepare for a possible loss of millions of articles at the whim of US politics. Crazy that it feels that this is necessary. 🧪🔭 More information in English here: blog.tib.eu/2025/05/14/p...

Last night the weather gods were more merciful and I got 2h of data on the brightening supernova SN2025rbs in NGC7331. bit.ly/4lB3t68 🔭#astrophotography🔭📷

Last week: rain showers during the day, cloud fields at night. Read about SN2025rbs in NGC7331 yesterday (discovered on July 14th), cloud forecast was good, so put it on my schedule. At the end I got 3min (sic!) of data, ie 1 frame, but enough to get SN2025rbs.

Beautiful image from Gemini Observatory: the dome of their telescope on Maunkea peak, Hawaii. In this time exposure, see the stars circle the north pole of the sky as our planet rotates. Laser beams that probe atmospheric distortion add interest. #astronomy #astroedu #astrophotos #spacephotos #sky

The school is organized by @cosmicwebmaster.bsky.social, @galacticrave.bsky.social (both @aippotsdam.bsky.social), Michael Kramer (MPIfR) and Maneenate Wechakama (Kasetsart University), and I'll give a lecture on dwarf galaxies and their relation to cosmology.

The Crescent Nebula NGC6888 (a.k.a the "cosmic brain") is a structure-rich emission nebula in Cygnus. The emission nebula is caused by the collision of winds of WR136 with slower earlier wind phases resulting in a pretty complex structure. bit.ly/4lB3t68 🔭#astrophotography 🔭📷

The poor group WBL 612 or Zwicky 1615.8+3505 is a nice chain-like arrangement of 8 NGC galaxies, all at a distance of some 400 MLy, and many smaller ones. The individual NGC galaxies are of interesting morphology featuring large spiral features, bars and rings. bit.ly/4lB3t68 🔭#astrophotography🔭📷

Two galaxies and a star: NGC 5874 and 5876 and the 5th magnitude star HD134190 forming a rectangular triangle on the sky. bit.ly/4lB3t68 🔭#astrophotography🔭📷

NGC 6229 is a globular cluster in Hercules, in the shadow of its famous brothers M13 & M92. It is an intermediate-metallicity globular cluster with 2 distinct generations of stars. A good target for short northern summer nights. bit.ly/4lB3t68 🔭#astrophotography🔭📷

NGC4631 is a star burst galaxy exibiting considerable Halpha emission. NGC 4631 has a partner, the dwarf elliptical NGC 4627, and Chip Arp lists this pair as object 281 ("double galaxy" or a galaxy pair) in his famous catalogue. bit.ly/4lB3t68 🔭#astrophotography

Messier 92 is a bright globular cluster in Hercules. It is only slightly less bright than the famous M13. M92 is one of the oldest globular clusters and features a fairly low metal content, about 0.5% of that of the Sun. bit.ly/4lB3t68 🔭#astrophotography 🔭📷

The so-called NGC 3396 group, which consists of Arp 270, an interacting pair of galaxies caught "in the act" of the collision and the Holmberg218 triplet of galaxies. bit.ly/4lB3t68 📷📷#astrophotography 📷

Arp 269 is a quite interesting interacting galaxy pair consisting of NGC 4490 (aka the Cocoon Galaxy) and NGC4485. chip Arp categorized this pair as "double or multiple galaxies wrung connected arms". bit.ly/4lB3t68 🔭📷#astrophotography 📷📷

Quite a bit of galaxy activity in this part of the sky: the barred spiral NGC5945, pretty perturbed as it interacts w NGC5943, which exhibits tidal debris. The interacting pair NGC5934/5935, and NGC5947, a SBbc spiral with an AGN bit.ly/4lB3t68 🔭📷#astrophotography 📷

NGC 3631 is a beautiful grand design spiral galaxy of type Sc. It is featured in Chip Arp's famous catalogue as Arp 27 under galaxies with one "heavy" arm. bit.ly/4lB3t68 🔭📷#astrophotography 🔭

Cosmic contrasts: NGC3319 at the center is a blue SBcd Seyfert galaxy with an AGN. It is a candidate for hosting an intermed. mass black hole. In the lower left is Abell 1056, a galaxy cluster at a redshift of about 0.125. app.astrobin.com/i/xdmi8c 🔭📷#astrophotography🔭

NGC4151 a.k.a as Sauron's eye is an SBab Seyfert galaxy with an inner ring structure and a actively growing supermassive central black hole. It is one of the 6 galaxies mentioned in Seyfert's original paper from 1943 defining the term Seyfert galaxy. www.astrobin.com/t9mn1m 🔭#astrophotography🔭📷

Back to the roots … @sternwpeterberg

Playing with SeeStar in EQ mode: Taking some 600 frames 50% in RGB and 50% with a nebula filter, stacked in PI, some basic image processing and then blended - considering the investment of time and $$, I think the outcome is quite impressive. www.astrobin.com/vx0t7o 🔭#astrophotography 📷🔭

Even though we'll miss seeing the disappearing rings this year, Saturn and the Sun have agreed to make it up to us in 13 years time with a triple plane crossing that we will be able to see 🥳. So mark these dates in your diary! 🪐 15 October 2038 🪐 1 April 2039 🪐 9 July 2039 📷:Damien Peach 🧪🔭

Northern lights over Ramsele, Sweden

🚨 ESO analysis confirms that the INNA industrial megaproject would have a devastating and irreversible impact on the facilities at Paranal Observatory. Full story ➡️ www.eso.org/public/news/... Details in 🧵 below 👇 🧪 🔭 #astrosci 1/

Peeking into the heart of the Heart Nebula IC1805 www.astrobin.com/4q6rqf/ 🔭#astrophotography 🔭📷

M106 and friends www.astrobin.com/mun0pp/ 🔭#astrophotography🔭📷