Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  NGC 3718  ·  NGC 3729  ·  PGC 2423714  ·  PGC 2425281  ·  PGC 2425719  ·  PGC 2431209  ·  PGC 2432523  ·  PGC 2432563  ·  PGC 2434871  ·  PGC 2437341  ·  PGC 2439126  ·  PGC 2440198  ·  PGC 35609  ·  PGC 35615  ·  PGC 35618  ·  PGC 35620  ·  PGC 35631
Getting plate-solving status, please wait...
Galaxies NGC3718 & NGC3729 and the distant Hickson Compact Group 56,, DoubleStarPhotography
Powered byPixInsight

Galaxies NGC3718 & NGC3729 and the distant Hickson Compact Group 56,

Getting plate-solving status, please wait...
Galaxies NGC3718 & NGC3729 and the distant Hickson Compact Group 56,, DoubleStarPhotography
Powered byPixInsight

Galaxies NGC3718 & NGC3729 and the distant Hickson Compact Group 56,

Equipment

Loading...

Acquisition details

Loading...

Description

NGC 3718, the twisted spiral galaxy in the center in the image, is a highly disturbed galaxy in Ursa Major.. Astronomers originally thought that NGC 3718 was a Lenticular Galaxy. However later photos showed two faint extensions that emerge from the envelope on opposite sides of the periphery, showing that it is most likely a spiral galaxy. 

NGC 3718's distinctive shape is likely the result of gravitational interactions with the smaller spiral galaxy, NGC 3729 (above and slightly to the right). To the right of NGC 3718 is the Hickson Compact Group 56, which consists of five interacting galaxies.

NGC 3718 is also known as Arp 214, and is in Arp's class of "galaxies with irregularities, absorption and resolution". Arp noted that the galaxy is a "Barred spiral, (with a) sharp nucleus, narrow absorption lanes through center".  The distance to NGC 3718 is roughly 52 Million Light Years.

Comments