21539+0845
- Unique Name: 21539+0845ABH 153AD
- RA: 21 54 01.63
- Dec: +08 44 38.7
- Discoverer: ABH
- Discoverer Number: 153
- Components: AD
- First year: 1919
- Last year: 2000
- Observations: 5
- First position angle: 120
- Last position angle: 119
- First separation: 62.3
- Last separation: 67.7
- Mag first component: 11.5
- Mag second component: 13.5
- Spectral type: G9IV
- Primary proper motion RA: -7
- Primary proper motion DEC: 2
- Secondary proper motion RA: -21
- Secondary proper motion DEC: -22
- Durchmusterung:
- Notes: U
