Planetary nebula · constellation Sgr
NGC 6644
NGC 6644ESO 522-033PN G008.3-07.3
Catalogue data
- Right ascension
- 18h 32m 34.7s
- Declination
- -25° 07' 46"
- Size
- 2.4″
- Position angle
- not available
- Magnitude
- 10.7 (V)
- Surface brightness
- 12.34 mag/arcsec²(derived)
- Difficulty
- 2/5
- Suggested techniques
- HOO, SHO, NARROWBAND
- Data source
- OpenNGC
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