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Name / Constellation

NGC 4559

 Other: C 36; UCG 7766

Com
Coordinates AR: +12h 35m 57,7s , +27° 57′ 35″
Optics Officina Stellare 10" f8 Richtey-Cretien
Camera-Mount PLAYERONE POSEIDON M-PRO - ZWO ASI 1600M (ONAG)- 10Micron GM2000 QCI Mount
Filters Antlia V-Pro LRGB
Exposure
  • Luminance
  • Red
  • Green
  • Blue
  • 117 x 300 sec - 9 hours 45min
  • 28 x 300 sec - 2 hours 20min
  • 32 x 300 sec - 2 hours 40min
  • 30 x 300 sec - 2 hours 30min
  • Binning 3
  • Binning 3
  • Binning 3
  • Binning 3
Location / Date Promiod (Valle D'Aosta-Italy) "TLP" Remote Observatory - Jan 2024 (L) / Apr-May 2026 (RGB)
Seeing 2.6" @ 1.17 arcosec/pixel binning 3
Note Drizzle 2X in postprocessing (Pixinsight))
Acquisition N.I.N.A.
Processing Adobe Photoshop CC -
Comment

 

NGC 4559 (also known as C 36) is a spiral galaxy in the constellation of the Berenice Hair. It is easily identified 2 degrees east of the star γ Comae Berenices; it is also clearly visible with powerful binoculars, such as an 11x80, in which however it will not present details and will show itself as a clear spot. The view becomes interesting with a 200mm aperture telescope, in which you can distinguish the core and two spiral arms, one facing north and the other south. It does not seem to be part of any group of nearby galaxies, being in an intermediate position between that of NGC 4631, closer to us, and that of NGC 4565, more remote. It is about 21 million light-years away from the Milky Way.