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Open star cluster M52

Open star cluster M52 is in the constellation Cassiopeia (Cas).

Equatorial coordinates (epoch J2000):
Ra (α):23^h24.2^m, Dec (δ):+61° 35'

Visual magnitude: 8,0^m
Distance from the star clusters M52 to the Sun is 4630 light years
Angular size: 16'
Class: e
External dimensions the star clusters M52 are about 22 light years.
Number of stars: 6000
Age of the object M52 is 25—165x10⁶ years

Discoverer: Charles Messier, 1774 year.

The designation M52 in other catalogs: NGC 7654

Optimum magnification for a telescope with observations of M52, depending on the aperture of the telescope (D), is about 10x-35x. 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 M52 is October. 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 51

Мessier 53

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