20190+2121
- Unique Name: 20190+2121J 3074
- RA: 20 18 49.10
- Dec: +21 22 05.4
- Discoverer: J
- Discoverer Number: 3074
- Components:
- First year: 1892
- Last year: 2006
- Observations: 8
- First position angle: 333
- Last position angle: 330
- First separation: 8.0
- Last separation: 8.0
- Mag first component: 12.3
- Mag second component: 12.45
- Spectral type:
- Primary proper motion RA: 0
- Primary proper motion DEC: -6
- Secondary proper motion RA: 0
- Secondary proper motion DEC: -8
- Durchmusterung:
- Notes: B
