21453+3853
- Unique Name: 21453+3853TDT3139
- RA: 21 45 19.18
- Dec: +38 53 25.4
- Discoverer: TDT
- Discoverer Number: 3139
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 65
- Last position angle: 65
- First separation: 0.5
- Last separation: 0.5
- Mag first component: 11.31
- Mag second component: 11.98
- Spectral type: F2V
- Primary proper motion RA: 14
- Primary proper motion DEC: 1
- Secondary proper motion RA: 14
- Secondary proper motion DEC: 1
- Durchmusterung:
- Notes: