Galaxy · constellation Dra
NGC 6643
NGC 6643MCG +12-17-021PGC 61742UGC 11218
Catalogue data
- Right ascension
- 18h 19m 46.4s
- Declination
- +74° 34' 06"
- Size
- 3.3′ × 1.6′
- Position angle
- 37°
- Magnitude
- 11.1 (V)
- Surface brightness
- 22.51 mag/arcsec²
- Hubble type
- Sc
- Difficulty
- 3/5
- Suggested techniques
- LRGB, RGB, OSC
- Data source
- OpenNGC
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