Planetary nebula · constellation Ara
IC 4642
IC 4642ESO 180-004PN G334.3-09.3
Catalogue data
- Right ascension
- 17h 11m 45.2s
- Declination
- -55° 23' 56"
- Size
- 16.8″
- Position angle
- not available
- Magnitude
- 13.4 (B)
- Surface brightness
- 19.26 mag/arcsec²(derived)
- Difficulty
- 3/5
- Suggested techniques
- HOO, SHO, NARROWBAND
- Data source
- OpenNGC
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