Galaxy · constellation Scl
NGC 639
NGC 639ESO 413-013MCG -05-05-002PGC 6105
Catalogue data
- Right ascension
- 1h 38m 59.1s
- Declination
- -29° 55' 31"
- Size
- 1.0′ × 18.0″
- Position angle
- 32°
- Magnitude
- 14.1 (V)
- Surface brightness
- 22.94 mag/arcsec²
- Hubble type
- Sa
- Difficulty
- 3/5
- Suggested techniques
- LRGB, RGB, OSC
- Data source
- OpenNGC
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