Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  NGC 4449
NGC4449 (Caldwell 21) is an irregular Magellanic type galaxy in the constellation Canes Venatici., Phil Swift
NGC4449 (Caldwell 21) is an irregular Magellanic type galaxy in the constellation Canes Venatici.
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NGC4449 (Caldwell 21) is an irregular Magellanic type galaxy in the constellation Canes Venatici.

NGC4449 (Caldwell 21) is an irregular Magellanic type galaxy in the constellation Canes Venatici., Phil Swift
NGC4449 (Caldwell 21) is an irregular Magellanic type galaxy in the constellation Canes Venatici.
Powered byPixInsight

NGC4449 (Caldwell 21) is an irregular Magellanic type galaxy in the constellation Canes Venatici.

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Description

NGC4449 is located about 12 million light-years away.

This galaxy is similar in nature to the Milky Way's satellite galaxy, the Large Magellanic Cloud (LMC), though is not as bright nor as large.

It has a general bar shape, also characteristic of the LMC, with scattered young blue star clusters.

Unlike the Large Magellanic Cloud, however, NGC4449 is considered a starburst galaxy due to its high rate of star formation.

Photos of the galaxy show the pinkish glow of atomic hydrogen gas, the telltale tracer of massive star forming regions.

NGC4449 is surrounded by a large envelope of neutral hydrogen that extends over an area of 75 arc minutes.

Interactions with nearby galaxies are thought to have influenced star formation in NGC4449, some of which are now being absorbed by it.

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NGC4449 (Caldwell 21) is an irregular Magellanic type galaxy in the constellation Canes Venatici., Phil Swift