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... М105 < М106 > М107 ...

Spiral galaxy M106

Spiral galaxy M106 is in the constellation Canes Venatici (CVn).


Equatorial coordinates (epoch J2000):
Ra (α):12h19.0m, Dec (δ):+47° 18'

Visual magnitude: 8,3m
Distance from the galaxy M106 to the Sun is 25,7*106 light years
Angular size: 19'×7'
Class: Sb (SBbc)
External dimensions the galaxy M106 are about 135000 light years.
The mass of the central object (black hole): 39x106 suns

Discoverer: Pierre François André Méchain, 1781 year.

The designation M106 in other catalogs: NGC 4258

Optimum magnification for a telescope with observations of M106, depending on the aperture of the telescope (D), is about D/6-D/3. 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 M106 is May. 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 latitudes:the night sky in May is no longer very dark, so try also to observe M106 in April.
Of course, in April the object is at midnight not at its highest point, whichprovides the least exposure and atmospheric distortion. But, the darkness of the April sky greatly increases the contrast.The farther south the location of your observation is located, the darker the summer sky will be.

Мessier 105
Мessier 107

Nikolay Kurdyapin, astro-map.com  

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