NGC 4565 Needle Galaxy (Jerry Macon)

NGC 4565 Needle Galaxy

Images from the following two scope/camera combinations contributed to this image:

AG12+ASI1600MM at .70 asec/pix

TV127is+ASI183MM at .75 asec/pix.

Imaged 4/18 with a full moon, which does not seem to have mattered much.

They were all registered to the best R image taken on the AG12+ASI1600MM.

L was created synthetically from the integrated RGB images. I have L from the TV127is+ASI183MM which were good quality, except for some ugly rings since I have not been able to clean any of the optics for many months. One of the problems with operating the observatory from 2000 miles away. Fortunately I will be back there soon to do some maintenance.

NGC 4565 (also known as the Needle Galaxy or Caldwell 38) is an edge-on spiral galaxy about 30 to 50 million light-years away in the constellation Coma Berenices. It lies close to the North Galactic Pole and has a visual magnitude of approximately 10. It is known as the Needle Galaxy for its narrow profile. First recorded in 1785 by William Herschel, it is a prominent example of an edge-on spiral galaxy.

Characteristics

NGC4565 is a giant spiral galaxy more luminous than the Andromeda Galaxy. Much speculation exists in literature as to the nature of the central bulge. In the absence of clear-cut dynamical data on the motions of stars in the bulge, the photometric data alone cannot adjudge among various options put forth. However, its exponential shape suggested that it is a barred spiral galaxy. Studies with the help of the Spitzer Space Telescope not only confirmed the presence of a central bar but also showed a pseudobulge within it as well as an inner ring.

NGC 4565 has at least two satellite galaxies, one of which is interacting with it. It has a population of roughly 240 globular clusters, more than the Milky Way.

NGC 4565 is one of the brightest] member galaxies of the Coma I Group.

(Wikipedia)

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Status	Advanced success
Started	...
Astrometry.net job	2649785
PixInsight job	8OPHXMZDNJIXP89IZXGI5ZOH3QXI2HZN
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	12h36m21s.412
RA (top/left)	12h37m34s.315
RA (top/right)	12h35m12s.138
RA (bottom/right)	12h35m08s.717
RA (bottom/left)	12h37m30s.467

Dec (center)	+25°59′23″.55
Dec (top/left)	+26°09′55″.66
Dec (top/right)	+26°11′06″.10
Dec (bottom/right)	+25°48′49″.12
Dec (bottom/left)	+25°47′39″.10

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