21539+0851
- Unique Name: 21539+0851GRV 518
- RA: 21 53 58.65
- Dec: +08 51 02.4
- Discoverer: GRV
- Discoverer Number: 518
- Components:
- First year: 1919
- Last year: 2000
- Observations: 4
- First position angle: 330
- Last position angle: 330
- First separation: 41.0
- Last separation: 40.7
- Mag first component: 11.8
- Mag second component: 12.5
- Spectral type:
- Primary proper motion RA: -21
- Primary proper motion DEC: -16
- Secondary proper motion RA: -29
- Secondary proper motion DEC: -21
- Durchmusterung:
- Notes: