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... М91 < М92 > М93 ...

Globular star cluster M92

Globular star cluster M92 is in the constellation Hercules (Her).


Equatorial coordinates (epoch J2000):
Ra 17h17.1m, Dec +43° 08'

Visual magnitude: 7,5m
Distance from the star clusters M92 to the Sun is 27140 light years
Angular size: 14'
Class: IV
External dimensions the star clusters M92 are about 110 light years.
Estimated weight the star clusters: 400x103 suns

Discoverer: Johann Elert Bode, 1777 year.

The designation M92 in other catalogs: NGC 6341

Optimum magnification for a telescope with observations of M92, depending on the aperture of the telescope (D), is about D/2-D. 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 M92 is June.
For observers in the northern and middle latitudes:The nights in June are very light, so try to observe M92 also in May and in July.
Of course, these months are also not very dark, in addition the object is at midnight not at its highest point, whichprovides the least exposure and atmospheric distortion, but the sense is still there.The farther south the location of your observatory is located, the darker the sky will be

Nikolay Kurdyapin, astro-map.com  
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