21288+6537
- Unique Name: 21288+6537OSO 147AD
- RA: 21 28 47.32
- Dec: +65 37 09.8
- Discoverer: OSO
- Discoverer Number: 147
- Components: AD
- First year: 1994
- Last year: 1999
- Observations: 3
- First position angle: 107
- Last position angle: 110
- First separation: 23.2
- Last separation: 22.8
- Mag first component: 10.42
- Mag second component: 18.1
- Spectral type: K3
- Primary proper motion RA: 151
- Primary proper motion DEC: 206
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: N