Open cluster · constellation Cas
NGC 663
NGC 663C 10MWSC 139
Catalogue data
- Right ascension
- 1h 46m 16.1s
- Declination
- +61° 13' 05"
- Size
- 6.0′
- Position angle
- not available
- Magnitude
- 7.1 (V)
- Surface brightness
- 19.62 mag/arcsec²(derived)
- Difficulty
- 2/5
- Suggested techniques
- RGB, OSC
- Data source
- OpenNGC
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