21398+4211
- Unique Name: 21398+4211TDT3094
- RA: 21 39 47.24
- Dec: +42 11 16.3
- Discoverer: TDT
- Discoverer Number: 3094
- Components:
- First year: 1991
- Last year: 2003
- Observations: 3
- First position angle: 227
- Last position angle: 229
- First separation: 2.9
- Last separation: 2.9
- Mag first component: 11.56
- Mag second component: 11.67
- Spectral type:
- Primary proper motion RA: 10
- Primary proper motion DEC: 14
- Secondary proper motion RA: -24
- Secondary proper motion DEC: 6
- Durchmusterung:
- Notes: