21539+0845
- Unique Name: 21539+0845J 2703AB
- RA: 21 54 01.63
- Dec: +08 44 38.7
- Discoverer: J
- Discoverer Number: 2703
- Components: AB
- First year: 1919
- Last year: 2000
- Observations: 7
- First position angle: 99
- Last position angle: 97
- First separation: 6.6
- Last separation: 6.8
- Mag first component: 11.5
- Mag second component: 11.5
- Spectral type: G9IV G1V
- Primary proper motion RA: -7
- Primary proper motion DEC: 2
- Secondary proper motion RA: 15
- Secondary proper motion DEC: 6
- Durchmusterung:
- Notes: U
