21310+1256
- Unique Name: 21310+1256LDS4891BC
- RA: 21 31 04.06
- Dec: +12 54 35.5
- Discoverer: LDS
- Discoverer Number: 4891
- Components: BC
- First year: 1960
- Last year: 1998
- Observations: 2
- First position angle: 175
- Last position angle: 178
- First separation: 21.0
- Last separation: 21.8
- Mag first component: 16.98
- Mag second component: 16.68
- Spectral type:
- Primary proper motion RA: -1
- Primary proper motion DEC: -4
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: