Open cluster · constellation Cas
NGC 657
NGC 657MWSC 135
Catalogue data
- Right ascension
- 1h 43m 20.8s
- Declination
- +55° 50' 11"
- Size
- 3.0′
- Position angle
- not available
- Magnitude
- not available
- Surface brightness
- not available
- Difficulty
- not available
- Suggested techniques
- RGB, OSC
- Data source
- OpenNGC
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