Nebula · constellation Sgr
M 17
Checkmark Nebula
NGC 6618M 17LBN 60MWSC 2896
Catalogue data
- Right ascension
- 18h 20m 47.1s
- Declination
- -16° 10' 18"
- Size
- 12.6′
- Position angle
- not available
- Magnitude
- 7.0 (V)
- Surface brightness
- 21.13 mag/arcsec²(derived)
- Difficulty
- 3/5
- Suggested techniques
- HOO, OSC, RGB
- Data source
- OpenNGC
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