20556+3809
- Unique Name: 20556+3809SEI1317AB
- RA: 20 55 35.44
- Dec: +38 08 26.7
- Discoverer: SEI
- Discoverer Number: 1317
- Components: AB
- First year: 1896
- Last year: 2002
- Observations: 4
- First position angle: 163
- Last position angle: 170
- First separation: 22.1
- Last separation: 22.5
- Mag first component: 10.42
- Mag second component: 11.8
- Spectral type:
- Primary proper motion RA: 16
- Primary proper motion DEC: 10
- Secondary proper motion RA: -10
- Secondary proper motion DEC: -6
- Durchmusterung:
- Notes: