Open cluster · constellation Sgr
M 23
NGC 6494M 23MWSC 2757
Catalogue data
- Right ascension
- 17h 57m 04.8s
- Declination
- -18° 59' 07"
- Size
- 16.8′
- Position angle
- not available
- Magnitude
- 5.5 (V)
- Surface brightness
- 20.26 mag/arcsec²(derived)
- Difficulty
- 2/5
- Suggested techniques
- RGB, OSC
- Data source
- OpenNGC
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