Celestial hemisphere:  Northern  ·  Constellation: Triangulum (Tri)  ·  Contains:  IC 131  ·  IC 132  ·  IC 133  ·  IC 135  ·  IC 136  ·  IC 137  ·  IC 142  ·  IC 143  ·  M 33  ·  NGC 588  ·  NGC 592  ·  NGC 595  ·  NGC 598  ·  NGC 604  ·  Triangulum galaxy
M33 / NGC 598 / Triangulum Galaxy, Ron Bokleman
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M33 / NGC 598 / Triangulum Galaxy

M33 / NGC 598 / Triangulum Galaxy, Ron Bokleman
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M33 / NGC 598 / Triangulum Galaxy

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Description

M33 / The Triangulum Galaxy is a spiral galaxy approximately 3 million light-years (ly) from Earth in the constellation Triangulum. It is catalogued as Messier 33 or NGC 598, and is sometimes informally referred to as the Pinwheel Galaxy, a nickname it shares with Messier 101. The Triangulum Galaxy is the third-largest member of the Local Group of galaxies, which includes the Milky Way, the Andromeda Galaxy and about 44 other smaller galaxies. It is one of the most distant permanent objects that can be viewed with the naked eye.

Many of the emission sources are associated with H II regions of star formation. The four brightest HII regions are designated NGC 588, NGC 592, NGC 595 and NGC 604. The brightest of these regions, NGC 604, may have undergone a discrete outburst of star formation about three million years ago. (Wikipedia)

Triangulum Galaxy

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M33 / NGC 598 / Triangulum Galaxy, Ron Bokleman

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ZWO ASI1600MM/QHY163M
Cloudy Nights

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Galaxies