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Open star cluster M37

Open star cluster M37 is in the constellation Auriga (Aur).

Equatorial coordinates (epoch J2000):
Ra (α):05^h52.4^m, Dec (δ):+32° 33'

Visual magnitude: 6,0^m
Distance from the star clusters M37 to the Sun is 4510 light years
Angular size: 25'
External dimensions the star clusters M37 are about 33 light years.
Number of stars: 2000
Age of the object M37 is 500x10⁶ years

Discoverer: Giovanni Battista Hodierna, before 1654 year.

The designation M37 in other catalogs: NGC 2099

Optimum magnification for a telescope with observations of M37, depending on the aperture of the telescope (D), is about D/6-D/2. Higher magnifications of course add details, but lead to a strong drop in the brightness of the image, making it difficult to observe.

The best month for observing M37 is January. At this time, the object is at midnight near its highest point in the sky, that is, it is less affected by light from the lanterns and atmospheric distortions.

Мessier 36

Мessier 38

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