M 106

NGC 4258, NGC 4217, NGC 4248, NGC 4231 and NGC 4232


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Next_Img2 M106_2015 NextBlack1

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Technical details:

Location / Date: Outside of Ramnäs, Västmanland, Sweden / 2015-February

Optics: Skywatcher Explorer 190MN

Mount: 10 Micron GM1000 HPS (Unguided)

Camera: Canon EOS 100D (Modded with Baader ACF filter)

Exposure: 40x 300 seconds, all shot on ISO 3200 (cumulative exposure time is 3 hours and 20 minutes)

Processing: Pixinsight and Photoshop


Image details:

Messier 106 (also known as NGC 4258) is a spiral galaxy in the constellation Canes Venatici. It was discovered by Pierre Méchain in 1781. M106 is at a distance of about 22 to 25 million light-years away from Earth. It is also a Seyfert II galaxy.

Due to x-rays and unusual emission lines detected, it is suspected that part of the galaxy is falling into a supermassive black hole in the center. NGC 4217 is a possible companion galaxy of Messier 106. M106 has a water vapor megamaser (the equivalent of a laser operating in microwave instead of visible light and on a galactic scale) that is seen by the 22-GHz line of ortho-H2O that evidences dense and warm molecular gas. These water vapors give M106 its characteristic purple color. (Information from Wikipedia)