Messier 106 and NGC 4248   HOME INDEX BACK NEXT

Spiral galaxy in Canes Venatici

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This bright spiral galaxy is about 25 million light years away.  The diameter of this galaxy, measuring to the tips of the two main spiral arms, is about 130,000 light years, which makes Messier 106 larger than our own Milky Way galaxy, which is about 100,000 light years across.  However, it is difficult to say exactly where a spiral galaxy ends, and this photo shows that Messier 106 has a dimmer oblong halo and faint spiral arms that more than double the total size of the galaxy.

To the upper right is another spiral galaxy, NGC 4248. At magnitude 12.5, it is a fairly easy target for amateur telescopes of moderate size.

Magnitude 8.3
Apparent Size 18' x 8'
Distance (light yrs) 24 million
Right Ascension 12:19.0
Declination +47 18
Field of View 29' x 22'

Image details:  Exposure times of 63 minutes luminance, and 33 minutes each of red, green, and blue, taken with an SBIG ST-8300M imager and a 14" Meade LX850 telescope at f/6.

April 2015