Galaxy · constellation Her
IC 4639
IC 4639PGC 1678509
Catalogue data
- Right ascension
- 17h 02m 54.7s
- Declination
- +22° 55' 48"
- Size
- 34.8″ × 30.6″
- Position angle
- 152°
- Magnitude
- 16.0 (B)
- Surface brightness
- 23.66 mag/arcsec²
- Hubble type
- E
- Difficulty
- 5/5
- Suggested techniques
- LRGB, RGB, OSC
- Data source
- OpenNGC
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