21431+2343
- Unique Name: 21431+2343BKO 630
- RA: 21 43 05.13
- Dec: +23 43 30.1
- Discoverer: BKO
- Discoverer Number: 630
- Components:
- First year: 1999
- Last year: 2008
- Observations: 3
- First position angle: 215
- Last position angle: 215
- First separation: 10.0
- Last separation: 10.0
- Mag first component: 14.3
- Mag second component: 14.7
- Spectral type:
- Primary proper motion RA: -14
- Primary proper motion DEC: -4
- Secondary proper motion RA: -33
- Secondary proper motion DEC: -30
- Durchmusterung:
- Notes: