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Name / Constellation

NGC 784

 Other: PGC 7671, MCG 5-5-45, UGC 1501, CGCG 503-74, KUG 0158+285, IRAS 01584+2836

Tri
Coordinates AR: 02h 01m 16.9s, 28° 50′ 14″
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
  • H-alpha
  • Luminance
  • Red
  • Green
  • Blue
  • 108 x 300 sec - 9 hours
  • 97 x 300 sec - 8 hours 5min
  • 36 x 300 sec - 3 hours
  • 36 x 300 sec - 3 hours
  • 33 x 300 sec - 2 hours 45min
  • Binning 3
  • Binning 3
  • Binning 3
  • Binning 3
  • Binning 3
Location / Date Promiod (Valle D'Aosta-Italy) "TLP" Remote Observatory - Nov 2024
Seeing 2.5" @ 1.17 arcosec/pixel binning 3
Note Drizzle 2X in postprocessing (Pixinsight))
Acquisition N.I.N.A.
Processing Adobe Photoshop CC -
Comment

 

NGC 784 is a barred spiral galaxy of the Magellanic type, seen edge-on and located in the constellation of Triangulum, at a distance of about 14 million light-years from our Milky Way.
The galaxy was discovered on September 20, 1865 by the Prussian astronomer Heinrich d'Arrest.
NGC 784 as seen by the Hubble Space Telescope.
NGC 784 has a luminosity class IV-V and presents a broad 21 cm line of neutral hydrogen.
Given its surface brightness of 14.26, NGC 784 can be classified as a galaxy with low surface brightness (abbreviated in the English literature as LSB, acronym for Low Surface Brightness). LSB galaxies are diffuse-type (D) galaxies with a surface brightness at least one magnitude less than that of the surrounding night sky.
Together with NGC 672 and IC 1727, NGC 784 is part of the NGC 672 Group, a small grouping of galaxies.