21209-3639
- Unique Name: 21209-3639B 1006
- RA: 21 20 52.44
- Dec: -36 39 24.1
- Discoverer: B
- Discoverer Number: 1006
- Components:
- First year: 1927
- Last year: 1999
- Observations: 5
- First position angle: 151
- Last position angle: 152
- First separation: 5.6
- Last separation: 5.6
- Mag first component: 9.16
- Mag second component: 13.14
- Spectral type: F2V
- Primary proper motion RA: 17
- Primary proper motion DEC: -1
- Secondary proper motion RA: 18
- Secondary proper motion DEC: -3
- Durchmusterung: -3714232
- Notes: