21398+5403
- Unique Name: 21398+5403TDT3093
- RA: 21 39 46.66
- Dec: +54 03 20.4
- Discoverer: TDT
- Discoverer Number: 3093
- Components:
- First year: 1991
- Last year: 2006
- Observations: 2
- First position angle: 329
- Last position angle: 331
- First separation: 0.5
- Last separation: 0.4
- Mag first component: 10.64
- Mag second component: 10.89
- Spectral type: F0
- Primary proper motion RA: 24
- Primary proper motion DEC: 10
- Secondary proper motion RA: 24
- Secondary proper motion DEC: 10
- Durchmusterung:
- Notes: