Globular cluster · constellation Sgr
NGC 6558
NGC 6558ESO 456-062MWSC 2831
Catalogue data
- Right ascension
- 18h 10m 18.4s
- Declination
- -31° 45' 48"
- Size
- 5.4′
- Position angle
- not available
- Magnitude
- 11.3 (V)
- Surface brightness
- 23.58 mag/arcsec²(derived)
- Difficulty
- 4/5
- Suggested techniques
- LRGB, RGB, OSC
- Data source
- OpenNGC
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