21105+3430
- Unique Name: 21105+3430TDS1119
- RA: 21 10 28.50
- Dec: +34 29 51.0
- Discoverer: TDS
- Discoverer Number: 1119
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 297
- Last position angle: 297
- First separation: 0.9
- Last separation: 0.9
- Mag first component: 11.06
- Mag second component: 12.37
- Spectral type:
- Primary proper motion RA: 15
- Primary proper motion DEC: 4
- Secondary proper motion RA: 15
- Secondary proper motion DEC: 4
- Durchmusterung:
- Notes: