21510+6137
- Unique Name: 21510+6137STT 451
- RA: 21 50 58.10
- Dec: +61 36 59.8
- Discoverer: STT
- Discoverer Number: 451
- Components:
- First year: 1847
- Last year: 2011
- Observations: 50
- First position angle: 226
- Last position angle: 218
- First separation: 4.5
- Last separation: 4.1
- Mag first component: 7.74
- Mag second component: 8.61
- Spectral type: A2
- Primary proper motion RA: 30
- Primary proper motion DEC: 15
- Secondary proper motion RA: 23
- Secondary proper motion DEC: 1
- Durchmusterung: +60 2303
- Notes: D
