21509-5939
- Unique Name: 21509-5939HDS3111
- RA: 21 50 53.66
- Dec: -59 38 41.2
- Discoverer: HDS
- Discoverer Number: 3111
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 193
- Last position angle: 193
- First separation: 0.2
- Last separation: 0.2
- Mag first component: 7.84
- Mag second component: 9.53
- Spectral type: K1III
- Primary proper motion RA: 12
- Primary proper motion DEC: -35
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: -60 7511
- Notes: