20204+3840
- Unique Name: 20204+3840SEI1088AB
- RA: 20 20 19.18
- Dec: +38 39 56.4
- Discoverer: SEI
- Discoverer Number: 1088
- Components: AB
- First year: 1896
- Last year: 2013
- Observations: 5
- First position angle: 241
- Last position angle: 238
- First separation: 4.2
- Last separation: 4.4
- Mag first component: 10.56
- Mag second component: 11.6
- Spectral type:
- Primary proper motion RA: -8
- Primary proper motion DEC: 5
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: