21054+1139
- Unique Name: 21054+1139BPM2321
- RA: 21 05 23.91
- Dec: +11 39 22.2
- Discoverer: BPM
- Discoverer Number: 2321
- Components:
- First year: 1986
- Last year: 2001
- Observations: 3
- First position angle: 223
- Last position angle: 223
- First separation: 113.4
- Last separation: 113.2
- Mag first component: 13.54
- Mag second component: 14.98
- Spectral type:
- Primary proper motion RA: -10
- Primary proper motion DEC: -12
- Secondary proper motion RA: -10
- Secondary proper motion DEC: -12
- Durchmusterung:
- Notes: NV