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The interacting galaxies NGC 2992-93

Date created: 1981-04-01

Tags: N/A

Galaxies are by nature gregarious, attracted by their mutual gravity. As a result, some close encounters are distruptive and streams of stars and dust lanes are displaced as they interact. Though the catalogue name implies two objects, in fact there are three galaxies here, locked in a permanent embrace, and over the next several billion years they will merge into a single body, recapturing most of the displaced stars. These stretched-out galaxies are also known as Arp 245, and are together in space in Hydra, about 100 million light years away.

Image derived from an AAT plate taken in red light.

Credit: David Malin

© Australian Astronomical Observatory