20135+3912
- Unique Name: 20135+3912SEI1025AC
- RA: 20 13 32.21
- Dec: +39 11 59.1
- Discoverer: SEI
- Discoverer Number: 1025
- Components: AC
- First year: 1913
- Last year: 2002
- Observations: 3
- First position angle: 253
- Last position angle: 256
- First separation: 24.0
- Last separation: 26.6
- Mag first component: 10.7
- Mag second component: 13.15
- Spectral type:
- Primary proper motion RA: -6
- Primary proper motion DEC: -3
- Secondary proper motion RA: -9
- Secondary proper motion DEC: 4
- Durchmusterung:
- Notes: