Open cluster · constellation Sco
M 7
Ptolemy's Cluster
NGC 6475M 7MWSC 2739
Catalogue data
- Right ascension
- 17h 53m 51.2s
- Declination
- -34° 47' 34"
- Size
- 22.2′
- Position angle
- not available
- Magnitude
- 3.3 (V)
- Surface brightness
- 18.66 mag/arcsec²(derived)
- Difficulty
- 1/5
- Suggested techniques
- RGB, OSC
- Data source
- OpenNGC
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