20191+3645
- Unique Name: 20191+3645BU 1206
- RA: 20 19 07.08
- Dec: +36 45 07.6
- Discoverer: BU
- Discoverer Number: 1206
- Components:
- First year: 1890
- Last year: 1977
- Observations: 15
- First position angle: 2
- Last position angle: 357
- First separation: 2.1
- Last separation: 2.2
- Mag first component: 7.53
- Mag second component: 10.7
- Spectral type: F4III
- Primary proper motion RA: -13
- Primary proper motion DEC: -27
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +36 4005
- Notes: