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... М106 < М107 > М108 ...

Globular star cluster M107

Globular star cluster M107 is in the constellation Ophiuchus (Oph).


Equatorial coordinates (epoch J2000):
Ra (α):16h32.5m, Dec (δ):-13° 03'

Visual magnitude: 10,0m
Distance from the star clusters M107 to the Sun is 27370 light years
Angular size: 13'
Class: X
External dimensions the star clusters M107 are about 105 light years.
Estimated weight the star clusters: 200x103 suns

Discoverer: Pierre François André Méchain, 1782 year.

The designation M107 in other catalogs: NGC 6171

Optimum magnification for a telescope with observations of M107, depending on the aperture of the telescope (D), is about 0.4D-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 M107 is June. 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.

For observers in the northern and middle latitudes:The nights in June are very light, so try to observe M107 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.

Мessier 106
Мessier 108

Nikolay Kurdyapin, astro-map.com  

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