NGC 7741

About image
NGC 7741 is a spiral galaxy crossed in the Pegasus.
It is a relatively small and not very bright object: only 4.4'x3 'and magnitude 11.8, for an estimated distance of about 47 million light years.
To the right of the bright star SAO 91455 very close (prospectively) to the galaxy another weak galaxy is visible, which could be a dwarf galaxy in interaction with NGC 7741.
Countless other galaxies are still visible in the background.

Technical data
Optic            Celestron C9.25 Edge HD f/10
Mount          10Micron GM1000 HPS
Camera           Atik 4000 with Starlight Xpress filter wheel 5 positions
Filters        Baader 50.8 unmounted
Guiding system      OAG LB Astro Proxima with Lodestar
Exposure details    L 19x600" bin1 -20C
Total integration    3,2h
Acquisition        Maxim, PHD2
Processing        Pixinsight 1.8, Photoshop CS5
SQM-L          21.00    
Location         Pian dell'Armà (Italy)
Date             20 September 2015

© Roberto Marinoni 2019 - All rights reserved