20133+3905
- Unique Name: 20133+3905SEI1017
- RA: 20 13 15.56
- Dec: +39 04 39.0
- Discoverer: SEI
- Discoverer Number: 1017
- Components:
- First year: 1896
- Last year: 2002
- Observations: 8
- First position angle: 263
- Last position angle: 259
- First separation: 27.9
- Last separation: 28.3
- Mag first component: 9.54
- Mag second component: 11.01
- Spectral type: A2V
- Primary proper motion RA: -3
- Primary proper motion DEC: 0
- Secondary proper motion RA: -6
- Secondary proper motion DEC: -8
- Durchmusterung: +38 3953
- Notes: