21123-0142
- Unique Name: 21123-0142BAL 263AB
- RA: 21 12 17.95
- Dec: -01 42 01.1
- Discoverer: BAL
- Discoverer Number: 263
- Components: AB
- First year: 1896
- Last year: 2013
- Observations: 6
- First position angle: 354
- Last position angle: 358
- First separation: 14.9
- Last separation: 15.9
- Mag first component: 11.47
- Mag second component: 12.0
- Spectral type:
- Primary proper motion RA: 2
- Primary proper motion DEC: -6
- Secondary proper motion RA: 10
- Secondary proper motion DEC: 6
- Durchmusterung:
- Notes: N
