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M37
Messier 37
Open Star Cluster
Right Ascension | 5h 52m 21s | Best Seen | 12/15-5/15 |
Declination | 32° 33' 06" | Magnitude | 6.2 |
Constellation | Auriga | ||
Actual |
Compared to Sun |
|
Distance | 4,400 ly | -- |
Diameter | 20-25 ly | -- |
Number of Stars | ~500 | 1 |
Actual Brightness | -- | -- |
Age | 300 million years | 5 billion |
Integrated Spectral Type | -- | G2 V |
Density (gram/cubic cm) | -- | -- |
What To Look For Through The Telescope
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Recommended eyepiece: 40mm or 80 mm.
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Through the telescope the cluster will appear as a group of individual stars, resembling sugar or salt sprinkled on a dark table top.
M37 Information
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Average separation of stars in this cluster is about 1 light year.
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The total luminosity of this cluster is 2,500 times the luminosity of the sun. Hence there are a number of bright stars in this cluster.
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This cluster was discovered before in 1654 by Giovanni Batista Hodierna. It was independently found by Charles Messier in 1764.
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This is the brightest of three open clusters in southern Auriga.
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M37 contains a considerable number of red giants.
Home > Star Clusters > Open > M37 > Reference | top |
References
Item | Updated | Notes |
Coordinates | 2002-12-10 | split difference between SIMBAD (05 52 19 +32 33.2) and http://www.seds.org/messier/m/m037.html (05 52.4 +32 33) |
Magnitude | 2002-12-10 | OK with SIMBAD and http://www.seds.org/messier/m/m037.html |
Distance | 2002-12-10 | OK with http://www.seds.org/messier/m/m037.html |
Actual Brightness | -- | |
Number of Stars | 2002-12-10 | OK with http://www.seds.org/messier/m/m037.html |
Diameter | 2002-12-10 | OK with http://www.seds.org/messier/m/m037.html |
Age | 2002-12-10 | OK with http://www.seds.org/messier/m/m037.html |
Integrated Spectral Type | -- | |
Other Information | 2002-12-10 | Cannot find support for Items 1-2 |
Other info from http://www.seds.org/messier/m/m037.html |