21103+4359
- Unique Name: 21103+4359STF2773AC
- RA: 21 10 14.01
- Dec: +43 59 51.7
- Discoverer: STF
- Discoverer Number: 2773
- Components: AC
- First year: 1879
- Last year: 2002
- Observations: 6
- First position angle: 64
- Last position angle: 64
- First separation: 22.1
- Last separation: 20.4
- Mag first component: 8.46
- Mag second component: 13.3
- Spectral type: A0
- Primary proper motion RA: -12
- Primary proper motion DEC: 10
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: