Stephan’s Quintet
Pegasus · 20/10/2011 - 18:30 UTC · Celestron C11 HD f/10
About the target
Stephan’s Quintet in the constellation Pegasus is a visual grouping of five galaxies of which four form the first compact galaxy group ever discovered. The group was discovered by Édouard Stephan in 1877 at Marseilles Observatory. The group is the most studied of all the compact galaxy groups. The brightest member of the visual grouping is NGC 7320 that is shown to have extensive H II regions, identified as red blobs, where active star formation is occurring.
© Nikos Paschalis
Observing log
- Object
- STEPHAN’S QUINTET ( NGC 7317, 7318A, 7318B, 7319, 7320)
- Constellation
- Pegasus
- Distance + Ap. Magnitude
- 280 million Light years - 13.2
- Date + Time
- 20/10/2011 - 18:30 UTC
- Location
- “Nunki Observatory” - Skiathos
- Optics
- Celestron C11 HD f/10
- Tools
- CCDsoft
- Camera
- SBIG ST10XE with CFW10 (Astrodon filters)
- Exposure Time
- Luminance: 2 X 900 sec
- More Details
- Environment Temperature: 15 °C Camera Temperature -10 °C
- Mount
- Paramount ME
- Guiding
- Self guided
- Processing Details
- Photoshop, Maxim, CCDsoft
- Notes
- Weather:9/10 - Transparence: 5/6 - Humidity: 84%