Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  M 106  ·  NGC 4248  ·  NGC 4258
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M 106, James E.
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M 106

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M 106, James E.
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M 106

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Description

M106 is a spiral galaxy about 23 million light years away in Canes Venatici.  It contains an active nucleus classified as a Type II Seyfert - galaxies with a characteristic bright core as well as appearing bright when viewed at infrared wavelengths.  In visible light images, two prominent arms emanate from the bright nucleus and spiral outward.  These arms are dominated by young, bright stars which light up the gas within the arms.  But in radio and X-ray images, two additional spiral arms (so-called "anomalous arms") appear tipped 30 degrees with respect to the galaxy disk and mostly consist of gas.  NGC 4217 (not shown in my image) is a possible companion galaxy of M106.  

Ha data was collected to show HII regions as well as the hydrogen component of the anomalous arms. While the vertical jet-like arm to the upper left of the nucleus is bright and was clearly visible with only an hour or so of Ha data, the second arm was not visible at all even after 10 hours Ha.

Imaged over several nights:  Feb 27; Mar 2-4, 10, 13-14, 2022.

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