21516+6545
- Unique Name: 21516+6545STF2843AC
- RA: 21 51 37.25
- Dec: +65 45 09.9
- Discoverer: STF
- Discoverer Number: 2843
- Components: AC
- First year: 1895
- Last year: 2005
- Observations: 13
- First position angle: 275
- Last position angle: 277
- First separation: 55.7
- Last separation: 55.2
- Mag first component: 7.01
- Mag second component: 11.01
- Spectral type: A1m
- Primary proper motion RA: -6
- Primary proper motion DEC: -21
- Secondary proper motion RA: 4
- Secondary proper motion DEC: 1
- Durchmusterung:
- Notes: N
