I had a rare stretch of nights recently to image around the New Moon. I'm not satisfied with my processing on this data set, but given the rarity of imaging opportunities this season, I wanted to post something of my own and not just lazily comment on the work of others.
This is an LRGB image of M106 in Canes Venatici. Referring to Jeff Kanipe and Dennis Webb, Annals of the Deep Sky, vol. 3, M106 is classified as a "barred LINER spiral with a Seyfert 2 nucleus." It has magnitude 8.4, size 18.6' x 7.2'. It has a prominent nucleus with double S-shaped spiral arms extending N and S from the center. Surrounding this is a fainter region showing wispy star-forming knots that can be seen in my image.
One of the prominent features of this galaxy that has been deduced is a super massive black hole. The central object has "a mass of 36 million suns packed within a volume less than 0.8 of a light year ... in diameter." This is a region of size 51,000 AU's.
Its distance is measured to be 7.2 Mpc or 23.5 Mly.
To the upper right is companion galaxy NGC 4248, visual magnitude 12.5. Although a bit small in my image, one can see its irregular elongated shape with bright central ridge.
My C11 Edge system on the AP Mach1 mount continues to exhibit a prominent underdamped vibration, which can be seen in the stars as vertical elongation. I hope to have this and some other issues resolved soon. As a consequence of these issues, I needed to darken the background more than I would have wished, and I also felt compelled to take additional processing steps in deconvolution and sharpening that I would prefer to forgo in the future once the issues have been resolved. I also pushed the noise reduction, particularly in the color channels, a bit more than I had intended. If I return to process the data again I will dial these steps back a bit.
As always, your Comments and Suggestions are welcome!
Thanks for your attention.
High Resolution AstroBin Links: