Open cluster · constellation Cas
NGC 637
NGC 637MWSC 133
Catalogue data
- Right ascension
- 1h 43m 03.1s
- Declination
- +64° 02' 12"
- Size
- 4.5′
- Position angle
- not available
- Magnitude
- 8.2 (V)
- Surface brightness
- 20.09 mag/arcsec²(derived)
- Difficulty
- 2/5
- Suggested techniques
- RGB, OSC
- Data source
- OpenNGC
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