21508+6400
- Unique Name: 21508+6400STI1061AB
- RA: 21 50 47.34
- Dec: +64 00 30.3
- Discoverer: STI
- Discoverer Number: 1061
- Components: AB
- First year: 1903
- Last year: 2012
- Observations: 4
- First position angle: 312
- Last position angle: 312
- First separation: 8.2
- Last separation: 8.1
- Mag first component: 12.0
- Mag second component: 12.1
- Spectral type:
- Primary proper motion RA: -1
- Primary proper motion DEC: -6
- Secondary proper motion RA: -5
- Secondary proper motion DEC: -6
- Durchmusterung:
- Notes: