A deep M13 (up to mag 23.0 background galaxies)

[Avdhoeven]

This image shows a very deep exposure of the M13 Hercules Globular Cluster. For this image data was used taken by a TEC140 and by a CFF185 telescope remotely in Spain. In the image background galaxies up to mag. 23 can be seen (see inverted image). In total about 160 background galaxies can be found.

Exposures:

CFF185/SBIG-STL11000
Lum: 19x180s + 17x600s

TEC140/QSI583ws
Lum: 19x300s + 10x600s
RGB: 3 x 12x300s

 

M13 Hercules Globular Cluster by Andre van der Hoeven, on Flickr

M13 Globular cluster background galaxies by Andre van der Hoeven, on Flickr

[Sunshine]

That is pretty as heck! love the star colours.

[Knighty2112]

Jaw dropping! Bravo!  

[celestron8g8]

Super capture with the companion in the frame also ! Nice !

[JeremyS]

Amazing!

[Stu]

Wonderful image Andre! I see two propellers and numerous ‘lanes’ amongst the stars. Fantastic!

[Demonperformer]

Mag 23 is pretty impressive 9-10 hours total time. Great image. 

[Avdhoeven]

Thanks for all the replies!

I wrote a tutorial how to use internet databases to find all the galaxies and how to mark them: http://www.astro-photo.nl/tutorials/detecting-and-marking-faint-galaxies-in-pixinsight