AstroGallery

NGC7023 (IRIS NEBULA)

NGC7023 (IRIS NEBULA)

Click on photo for a larger image.

Object Notes:
  • Constellation: Cepheus
  • Location: RA: 21h 00m 30.0s Dec: +68d 10' 00" Epoch 2000
  • Size: 5 x 5 arc-minutes
  • Magnitude: 7.1
  • Type: Diffuse Nebula/Open Cluster
  • AKA: OCL 235
Instrument: Ritchey-Chretien 32" Telescope
Focal Ratio: f7.2 (prime focus)
Camera: SBIG STL-11000 CCD camera
(See product review in July, 2004 issue of Sky & Telescope magazine.)
Exposure: 17 x 5 minutes Luminance unbinned
5 x 5 minutes each R/G/B, all binned 3x3
Guiding: Off-Axis with STV Autoguider (Santa Barbara Instrument Group)
(See product review in May, 2003 issue of Astronomy magazine.)
See Photo/Guiding Equipment.
Date: 10/14/04
Post Processing: CCDSoft, CCDSharp, MaxIM DL, Photoshop CS

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