21288+6537
- Unique Name: 21288+6537OSO 147AC
- RA: 21 28 47.32
- Dec: +65 37 09.8
- Discoverer: OSO
- Discoverer Number: 147
- Components: AC
- First year: 1994
- Last year: 2003
- Observations: 4
- First position angle: 289
- Last position angle: 283
- First separation: 23.1
- Last separation: 24.0
- Mag first component: 10.42
- Mag second component: 15.6
- Spectral type: K3
- Primary proper motion RA: 149
- Primary proper motion DEC: 206
- Secondary proper motion RA: -12
- Secondary proper motion DEC: -5
- Durchmusterung:
- Notes: N
