21516+1950
- Unique Name: 21516+1950HJ 947AB
- RA: 21 51 34.24
- Dec: +19 49 35.9
- Discoverer: HJ
- Discoverer Number: 947
- Components: AB
- First year: 1827
- Last year: 2012
- Observations: 18
- First position angle: 93
- Last position angle: 98
- First separation: 15.0
- Last separation: 18.9
- Mag first component: 5.78
- Mag second component: 11.39
- Spectral type: B8III
- Primary proper motion RA: 21
- Primary proper motion DEC: 13
- Secondary proper motion RA: 7
- Secondary proper motion DEC: 1
- Durchmusterung: +19 4797
- Notes: N D
