Emission nebula · constellation Cyg
NGC 6857
NGC 6857
Catalogue data
- Right ascension
- 20h 01m 48.1s
- Declination
- +33° 31' 33"
- Size
- 37.8″ × 37.8″
- Position angle
- not available
- Magnitude
- 11.4 (B)
- Surface brightness
- 19.03 mag/arcsec²(derived)
- Difficulty
- 3/5
- Suggested techniques
- SHO, HOO, NARROWBAND, OSC
- Data source
- OpenNGC
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