Cosmic Atlas object record
IC 4639
IC4639, IC 4639
- Object type
- galaxy
- Constellation
- Her
- Right ascension
- 255.728125°
- Declination
- 22.93002778°
- Reference frame
- J2000 equatorial catalog coordinates
- Distance
- 802208675.5875386 ly
- Distance kind
- Not supplied by the source catalog
- Uncertainty
- Not supplied by the source catalog
- Apparent magnitude
- 15.99
- Catalog source
- openngc_ngc_ic_catalog
- Catalog epoch
- J2000 catalog coordinates
- Position epoch
- J2000
- Selection caveat
- OpenNGC Pax is not treated as parallax for galaxies. Galactic classes never use Hubble-flow redshift or radial-velocity distance, and radial velocity alone is never converted to distance.
- Cosmology
- Not supplied by the source catalog