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M20 (Trifid Nebula)

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Object Notes:
  • Constellation: Sagittarius
  • Location: RA: 18h 02m 18.0s Dec: -23d 02' 00" Epoch 2000
  • Size: 28 x 15 arc-minutes
  • Magnitude: 6.3
  • Type: Diffuse Nebula/Open Cluster
  • AKA: Trifid Nebula, ngc6514
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:
15 x 1 minutes Luminance, 5 x 1 minutes each R/G/B, all unbinned
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:
7/20/04
Post Processing:
CCDSoft, CCDSharp, MaxIM DL, Photoshop CS