New Image: Abell 1656_Coma Cluster

[MariusD69]

Hello!

Abell 1656 (Coma Cluster) contains over 1000 identified galaxies (my field is too small to include them all). The central region is dominated by two supergiant elliptical galaxies: NGC 4874 and NGC 4889).
I captured this cluster in 2020, with the OSC camera and the SW newton 6" F5. Now I wanted to see how much I could dig with a newton 8" F4 and the monochrome camera. The exposures were quite short (180s with gain 75), for DSO it would have been 5 minutes, but I would have burned more stars.
Looking online for pictures of this cluster, I saw that a quasar was also detected in the field, QSO [HB89] 1256+280, located at an approximate distance of 11.3 billion light years (+/-1 billion). And I have it in the picture too! (annotated as Q 1256+2804).
I put PI to annotate the whole image and look what it gave me:
"Layer NGC-IC: 64 entities
PGC layer: 478 entities
Layer Milliquas: 538 entities"
It was not even able to write the names of all the detected galaxies. And quasars are a lot! For some annotated quasars nothing can be seen, but there are enough that are visible, especially if you zoom in 200-300%.
Unfortunately, the annotation greatly increased the size of the picture (6MB jpg), so I had to reduce it to 50%. Anyway, our site reduce the resolution of large images. Here is the image in full resolution: https://photos.app.goo.gl/xwEhg92hxfmQHytC6
Total exposure: 11 hours and 30 minutes. Omegon 203/800 and ASI1600MM.
Clear skies!

[starfield]

Beautiful. It's fun to zoom in and look at the details in some of the small galaxies. Such a fantastic field.

[Xio1996]

Hi Marius,

That is an amazing image. A field full of galaxies.

Many thanks.

Pete

[Juno16]

That is an awesome image Marius! Masive amount of galaxies!

Congratulations on catching the Quasar. Amazing to capture something so old and distant!

[jthommes]

Beautiful image Marius! That's a lot of galaxies.

[Ylem]

Wow, just WOW Marius, amazing stuff!

[messier 111]

exquisit shot , thx .