Galaxy M106 (NGC 4258) in the Constellation Canes Venatici

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M(essier) 106 is a (relatively) nearby spiral galaxy lying in the constellation Canes Venatici and close to the border of Ursa Major. Lying approximately 25 million light years away, M106 is one of the largest and brightest spiral galaxies in our vicinity. The galaxy is believed to have a supermassive black hole in its core.

  Optics:8-inch Ritchey-Chretien telescope 
  Camera:QHY268M CMOS camera 
  Exposure info:RGB: 15/24/40 x 300 sec / 88 x 300 sec Luminance / 10 x 300s + 20 x 600s Halpha / 18 hours total 
  Filters used:Astronomik LRGBHa and Optolong L-Pro light pollution filter 
  Date:April-June 2022 
  Processing:Pixinsight-->Photoshop-->Topaz deNoise AI-->Lightroom; re-processed Jan 24  



1. Finlay, WH. Concise Catalog of Deep-Sky Objects, Springer.