10303+6321
- Unique Name: 10303+6321ES 1905BC
- RA: 10 30 21.97
- Dec: +63 21 11.9
- Discoverer: ES
- Discoverer Number: 1905
- Components: BC
- First year: 1921
- Last year: 1999
- Observations: 2
- First position angle: 200
- Last position angle: 206
- First separation: 4.0
- Last separation: 3.9
- Mag first component: 11.6
- Mag second component: 13.4
- Spectral type:
- Primary proper motion RA: -26
- Primary proper motion DEC: -33
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: