Messier 17 - NGC 6618

"Swan Nebula"

• TYPE:  Emission Nebula/Open Cluster
• RA: 18h 20.8'
• DEC:  -16degrees 11'
• SIZE:  46' X 37'
• VISUAL MAGNITUDE:  7.0
• SURFACE BRIGHTNESS:  9.3
• CONSTELLATION:  Sagittaruis
• DISTANCE:  5000  Light Years
• DIAMETER:  75 Light Years

IMAGING INFORMATION

• TELESCOPE:  Celestron C-14, FL 2800 mm, Schmidt-Cassegrain reflector on a Parramount GT1100
• REDUCER/CORRECTOR:  OPTEC 0.5 Reducer, NGF-S w/SmartFocus
• CAMERA:  Santa Barbara Instruments, ST-8 Digital (Thermoelectrically cooled)
• ADAPTIVE OPTICS:  Santa Barbara Instruments, AO-7
• FILTER(S):  None
• CCD COOLING TEMPERATURE:  -5 C
• BINNING/RESOLUTION: 1 X1 (1530 X 1020)
• EXPOSURE TIME:  30 minutes
• NUMBER OF IMAGES:  1
• FILM SPEED:  None
• DATE/TIME:  08-07-2004 / 05:21:31.011 UTC
• LOCATION:  Valley Center, San Diego County, California
• TEMPERATURE:  Unknown
• HUMIDITY: Unknown

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