21129+2330
- Unique Name: 21129+2330BKO 886AE
- RA: 21 12 50.48
- Dec: +23 29 40.6
- Discoverer: BKO
- Discoverer Number: 886
- Components: AE
- First year: 1998
- Last year: 2009
- Observations: 3
- First position angle: 161
- Last position angle: 142
- First separation: 7.4
- Last separation: 7.0
- Mag first component: 12.6
- Mag second component: 15.9
- Spectral type:
- Primary proper motion RA: -56
- Primary proper motion DEC: 137
- Secondary proper motion RA: 9
- Secondary proper motion DEC: -36
- Durchmusterung:
- Notes: