20138+4055
- Unique Name: 20138+4055TDT2106
- RA: 20 13 50.50
- Dec: +40 54 43.7
- Discoverer: TDT
- Discoverer Number: 2106
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 358
- Last position angle: 358
- First separation: 0.5
- Last separation: 0.5
- Mag first component: 11.45
- Mag second component: 11.9
- Spectral type: A0
- Primary proper motion RA: 10
- Primary proper motion DEC: -1
- Secondary proper motion RA: 10
- Secondary proper motion DEC: -1
- Durchmusterung:
- Notes: