21310-0502
- Unique Name: 21310-0502BRT 559
- RA: 21 31 04.49
- Dec: -05 01 42.0
- Discoverer: BRT
- Discoverer Number: 559
- Components:
- First year: 1934
- Last year: 2003
- Observations: 5
- First position angle: 101
- Last position angle: 102
- First separation: 3.0
- Last separation: 3.5
- Mag first component: 10.5
- Mag second component: 11.0
- Spectral type:
- Primary proper motion RA: -14
- Primary proper motion DEC: 2
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: