20257+4004
- Unique Name: 20257+4004TOR 25AB
- RA: 20 25 44.56
- Dec: +40 03 59.0
- Discoverer: TOR
- Discoverer Number: 25
- Components: AB
- First year: 1977
- Last year: 2012
- Observations: 8
- First position angle: 208
- Last position angle: 192
- First separation: 10.6
- Last separation: 4.8
- Mag first component: 8.73
- Mag second component: 10.5
- Spectral type: A0
- Primary proper motion RA: 0
- Primary proper motion DEC: -11
- Secondary proper motion RA: -3
- Secondary proper motion DEC: -15
- Durchmusterung: +39 4183
- Notes: N
