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Name / Constellation

NGC 4565

 Other:  UGC 7772, PGC 42038, Caldwell 38

Com
Coordinates AR: 12h 36m 20,8s - Dec: +25° 59′ 14″
Optics Officina Stellare 10" f8 Richtey-Cretien
Camera-Mount SBIG ST10XME/CFW10 - ZWO ASI1600MM guider (ONAG) - 10Micron GM2000 QCI Mount
Filters Astrodon Gen. II - LRGB
Exposure
  • Luminance
  • Red
  • Green
  • Blue
  • 11 x 900 sec - 2 hours 45 min
  • 9 x 300 sec - 45 min
  • 9 x 300 sec - 45 min
  • 9 x 300 sec - 45 min
  • UNBINNED
  • BINNING 2x2
  • BINNING 2x2
  • BINNING 2x2
Location / Date Promiod (Valle D'Aosta-Italy) "TLP" Remote Observatory - feb 2022
Seeing 2.8" @ 0.7 arcosec/pixel unbinned
Note  
Acquisition MaxIm DL - CCD Commander
Processing Adobe Photoshop -
Comment

 

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. NGC 4565 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. 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.