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... М55 < М56 > М57 ...

Globular star cluster M56

Globular star cluster M56 is in the constellation Lyra (Lyr).


Equatorial coordinates (epoch J2000):
Ra (α):19h16.6m, Dec (δ):+30° 11'

Visual magnitude: 9,5m
Distance from the star clusters M56 to the Sun is 27390 light years
Angular size: 7'
Class: X
External dimensions the star clusters M56 are about 55 light years.
Estimated weight the star clusters: 200x103 suns

Discoverer: Charles Messier, 1779 year.

The designation M56 in other catalogs: NGC 6779

Optimum magnification for a telescope with observations of M56, depending on the aperture of the telescope (D), is about D/3-0.8D. 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 M56 is August. 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 55
Мessier 57

Nikolay Kurdyapin, astro-map.com  

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