20190+3900
- Unique Name: 20190+3900HO 125
- RA: 20 18 57.54
- Dec: +39 00 15.1
- Discoverer: HO
- Discoverer Number: 125
- Components:
- First year: 1885
- Last year: 2008
- Observations: 11
- First position angle: 195
- Last position angle: 196
- First separation: 2.8
- Last separation: 3.5
- Mag first component: 6.4
- Mag second component: 10.6
- Spectral type: K4II
- Primary proper motion RA: 2
- Primary proper motion DEC: -1
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +38 4003
- Notes: