Open cluster · constellation Sct
NGC 6639
NGC 6639MWSC 2934
Catalogue data
- Right ascension
- 18h 30m 59.3s
- Declination
- -13° 09' 21"
- Size
- 6.0′
- 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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