21539+0845
- Unique Name: 21539+0845J 2703AC
- RA: 21 54 01.63
- Dec: +08 44 38.7
- Discoverer: J
- Discoverer Number: 2703
- Components: AC
- First year: 1943
- Last year: 2000
- Observations: 4
- First position angle: 210
- Last position angle: 222
- First separation: 12.0
- Last separation: 14.2
- Mag first component: 11.5
- Mag second component: 15.0
- Spectral type: G9IV
- Primary proper motion RA: -7
- Primary proper motion DEC: 2
- Secondary proper motion RA: -64
- Secondary proper motion DEC: -37
- Durchmusterung:
- Notes: U
