21031+2929
- Unique Name: 21031+2929OSO 139AC
- RA: 21 03 06.12
- Dec: +29 28 56.2
- Discoverer: OSO
- Discoverer Number: 139
- Components: AC
- First year: 1994
- Last year: 1998
- Observations: 3
- First position angle: 304
- Last position angle: 308
- First separation: 19.5
- Last separation: 18.8
- Mag first component: 10.19
- Mag second component: 16.5
- Spectral type:
- Primary proper motion RA: -261
- Primary proper motion DEC: -169
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: N
