21123+1105
- Unique Name: 21123+1105BPMA251
- RA: 21 12 20.31
- Dec: +11 05 10.5
- Discoverer: BPM
- Discoverer Number: 0
- Components:
- First year: 1999
- Last year: 2001
- Observations: 4
- First position angle: 305
- Last position angle: 305
- First separation: 252.6
- Last separation: 252.6
- Mag first component: 12.81
- Mag second component: 14.69
- Spectral type:
- Primary proper motion RA: -33
- Primary proper motion DEC: -41
- Secondary proper motion RA: -12
- Secondary proper motion DEC: -62
- Durchmusterung:
- Notes: NV
