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M106 HaLRGB

An active galaxy, as evidenced in the strong Ha signal in the image, m106 is a Seyfert galaxy with a very bright core and seems to cover the EM spectrum with massive radio radiation and a microwave 22 GHz water maser from the purple outer dense clouds. It is 22-25 lyr distant in Canes Venatici. It is similar in size and luminosity to the Andromeda Galaxy, but has a supermassive black hole at its center.

 

This is a 14.9 hr HaLRGB image which is a revisit to a previous 13.5 hr composite LRGB version from April 2019. The new HaLRGB version now adds 1.33 hrs of Ha collected recently on 5/24/2020 with my newest FLI ML16200 camera. The older data is 6.2 hrs of RGB data from 2014, collected with an FLI ML8300 camera, and 7.1 hrs of RGB from 2012, collected with an SBIG ST-2000M. The scope in all cases was an APM LZOS 130/780 f/6 LW CNC II 130mm APO on a Takahashi EM-200 Temma2 mount. All data were taken from D.A.R.C. Observatory, Mercey Hot Springs, CA. North is to the right.

 

I originally planned to use the "Pure Ha" technique (Vicent Peris and others) for adding the Ha data but that turned out to be rather complicated with three different cameras and datasets from three different years. I ended up using the Tony Hallas technique but did use a "clean Ha" signal (continuum removed/reduced from the Ha) but performed that at the nonlinear, rather than linear, stage.

 

m106HaLRGB8 12/31/21

m106HaLRGB8-2022 7/27/22

 

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Uploaded on June 4, 2020