English  |  Русский  |  Deutsch  |  Español  |  Italiano  |  Português  |
... М108 < М109 > М110 ...

Spiral galaxy M109

Spiral galaxy M109 is in the constellation Ursa Major (UMa).


Equatorial coordinates (epoch J2000):
Ra 11h57.6m, Dec +53° 23'

Visual magnitude: 9,8m
Distance from the galaxy M109 to the Sun is 67,5*106 light years
Angular size: 8'×5'
Class: SBbc
External dimensions the galaxy M109 are about 137000 light years.
Estimated weight the galaxy: 250x109 suns

Discoverer: Pierre François André Méchain, 12.03.1781 year.

The designation M109 in other catalogs: NGC 3992

Optimum magnification for a telescope with observations of M109, 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 M109 is April.

Nikolay Kurdyapin, astro-map.com  
Liked?   or tell your friends:

Copyright © 2018, astro-map.com
At a reprint of materials from this site link to the astro-map.com obligatory.