Globular cluster · constellation Sgr
M 55
NGC 6809M 55MWSC 3150
Catalogue data
- Right ascension
- 19h 39m 59.4s
- Declination
- -30° 57' 44"
- Size
- 12.0′
- Position angle
- not available
- Magnitude
- 6.5 (V)
- Surface brightness
- 20.51 mag/arcsec²(derived)
- Difficulty
- 2/5
- Suggested techniques
- LRGB, RGB, OSC
- Data source
- OpenNGC
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