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Name / Constellation

NGC 752

Other: C 28; Mel 12; Cr 23; OCl 363

And

Coordinates AR: 01h 57m 41s - Dec: +37° 47′ 06″
Optics Takahashi FSQ 106N APO Fluorite F5 - 60/220 guiding refractor
Camera-Mount SBIG STF8300M - Orion StarShot Guider - 10Micron GM2000 QCI Mount
Filters Baader LRGB
Exposure
  • Lum
  • Red
  • Green
  • Blue
  • 6 x 180 sec - 18 min
  • 6 x 180 sec - 18 min
  • 6 x 180 sec - 18 min
  • 6 x 180 sec - 18 min
  • UNBINNED
  • BINNING 2X2
  • BINNING 2X2
  • BINNING 2X2
Location / Date Promiod (Valle D'Aosta-Italy) "TLP" Remote Observatory - 31/12/2019
Seeing About 3.8 " @ 2.1 arcosec/pixel unbinned
Note  
Acquisition MaxIm DL - CCD Autopilot 5
Processing Adobe Photoshop CC -
Comment

NGC 752 (also known as Caldwell 28) is an open cluster in the constellation Andromeda. The cluster was discovered by Caroline Herschel in 1783 and cataloged by her brother William Herschel in 1786, although an object that may have been NGC 752 was described by Giovanni Batista Hodierna before 1654. The large cluster lies 1,300 light-years away from the Earth  and is easily seen through binoculars, although it may approach naked eye visibility under good observing conditions. A telescope reveals about 60 stars no brighter than 9th magnitude within NGC 752.