Celestial hemisphere:  Northern  ·  Constellation: Aries (Ari)  ·  Contains:  NGC 770  ·  NGC 772
Arp 78, Samuel
Arp 78
Powered byPixInsight

Arp 78

Arp 78, Samuel
Arp 78
Powered byPixInsight

Arp 78

Equipment

Loading...

Acquisition details

Loading...

Description

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. Halton Arp includes NGC 772 in his Atlas of Peculiar Galaxies as Arp 78, where it is described as a "Spiral galaxy with a small high-surface brightness companion".

Collaboration between Salvatore Iovene, Jaime Alemany and me.

Comments

Sky plot

Sky plot

Histogram

Arp 78, Samuel

In these collections

Galaxies