Open cluster · constellation Oph
NGC 6633
NGC 6633MWSC 2917
Catalogue data
- Right ascension
- 18h 27m 15.2s
- Declination
- +6° 30' 30"
- Size
- 12.0′
- Position angle
- not available
- Magnitude
- 4.6 (V)
- Surface brightness
- 18.62 mag/arcsec²(derived)
- Difficulty
- 1/5
- Suggested techniques
- RGB, OSC
- Data source
- OpenNGC
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