21153+3051
- Unique Name: 21153+3051GRV 439
- RA: 21 15 22.63
- Dec: +30 51 18.7
- Discoverer: GRV
- Discoverer Number: 439
- Components:
- First year: 1900
- Last year: 2002
- Observations: 4
- First position angle: 130
- Last position angle: 127
- First separation: 21.0
- Last separation: 21.5
- Mag first component: 10.2
- Mag second component: 13.1
- Spectral type:
- Primary proper motion RA: -21
- Primary proper motion DEC: -23
- Secondary proper motion RA: -18
- Secondary proper motion DEC: -27
- Durchmusterung: +30 4370
- Notes: