21229+3142
- Unique Name: 21229+3142GRV 458
- RA: 21 22 55.17
- Dec: +31 42 30.2
- Discoverer: GRV
- Discoverer Number: 458
- Components:
- First year: 1998
- Last year: 2002
- Observations: 3
- First position angle: 123
- Last position angle: 123
- First separation: 43.2
- Last separation: 43.3
- Mag first component: 11.3
- Mag second component: 13.9
- Spectral type:
- Primary proper motion RA: -14
- Primary proper motion DEC: -14
- Secondary proper motion RA: 1
- Secondary proper motion DEC: -25
- Durchmusterung:
- Notes: