20189+3817
- Unique Name: 20189+3817A 1425AB,C
- RA: 20 18 51.71
- Dec: +38 16 46.5
- Discoverer: A
- Discoverer Number: 1425
- Components: AB,C
- First year: 1906
- Last year: 2000
- Observations: 3
- First position angle: 311
- Last position angle: 310
- First separation: 8.8
- Last separation: 9.1
- Mag first component: 6.65
- Mag second component: 13.2
- Spectral type: O9II-III
- Primary proper motion RA: -10
- Primary proper motion DEC: -13
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: N