21215-6640
- Unique Name: 21215-6640DON1006
- RA: 21 21 28.00
- Dec: -66 40 00.3
- Discoverer: DON
- Discoverer Number: 1006
- Components:
- First year: 1928
- Last year: 1991
- Observations: 3
- First position angle: 128
- Last position angle: 126
- First separation: 2.3
- Last separation: 2.5
- Mag first component: 7.97
- Mag second component: 12.27
- Spectral type: A3m
- Primary proper motion RA: -11
- Primary proper motion DEC: 14
- Secondary proper motion RA: -9
- Secondary proper motion DEC: 11
- Durchmusterung: -67 3792
- Notes: