21145+2523
- Unique Name: 21145+2523BKO 891
- RA: 21 14 31.13
- Dec: +25 23 04.9
- Discoverer: BKO
- Discoverer Number: 891
- Components:
- First year: 2000
- Last year: 2009
- Observations: 3
- First position angle: 113
- Last position angle: 117
- First separation: 9.6
- Last separation: 9.6
- Mag first component: 13.2
- Mag second component: 14.7
- Spectral type:
- Primary proper motion RA: -7
- Primary proper motion DEC: -8
- Secondary proper motion RA: 2
- Secondary proper motion DEC: 3
- Durchmusterung:
- Notes: