20136+4644
- Unique Name: 20136+4644BU 1483CH
- RA: 20 13 39.20
- Dec: +46 42 42.6
- Discoverer: BU
- Discoverer Number: 1483
- Components: CH
- First year: 1878
- Last year: 2003
- Observations: 3
- First position angle: 62
- Last position angle: 62
- First separation: 60.5
- Last separation: 60.8
- Mag first component: 6.97
- Mag second component: 12.6
- Spectral type: B5V
- Primary proper motion RA: 3
- Primary proper motion DEC: 3
- Secondary proper motion RA: 0
- Secondary proper motion DEC: -2
- Durchmusterung:
- Notes: N
