NGC 772
Submitted: Wed, 2017-12-20 20:29
NGC 772 (also known as Arp 78) is an unbarred spiral galaxy approximately 130 million light-years away in the constellation Aries.
Around 200,000 light years in diameter, NGC 772 is twice the size of the Milky Way Galaxy, and is surrounded by several satellite galaxies – including the dwarf elliptical, NGC 770 – whose tidal forces on the larger galaxy have likely caused the emergence of a single elongated outer spiral arm that is much more developed than the others arms.
L = 20 * 1800 sec. bin1, R = 12 * 900 сек. bin2, G = 12 * 1000 сек. bin2, B = 12 * 1100 сек. bin2.
Total exposition - 20 hours
Pixinsight 1.8 and Photoshop.
