21051+0757
- Unique Name: 21051+0757HDS3004AB
- RA: 21 05 07.95
- Dec: +07 56 44.4
- Discoverer: HDS
- Discoverer Number: 3004
- Components: AB
- First year: 1991
- Last year: 2008
- Observations: 12
- First position angle: 309
- Last position angle: 30
- First separation: 0.4
- Last separation: 0.2
- Mag first component: 7.98
- Mag second component: 11.81
- Spectral type: G5
- Primary proper motion RA: 5
- Primary proper motion DEC: -89
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +07 4621
- Notes: O
