20259+4019
- Unique Name: 20259+4019ALI1142
- RA: 20 25 54.02
- Dec: +40 18 40.5
- Discoverer: ALI
- Discoverer Number: 1142
- Components:
- First year: 1928
- Last year: 2002
- Observations: 3
- First position angle: 71
- Last position angle: 57
- First separation: 11.2
- Last separation: 11.9
- Mag first component: 12.1
- Mag second component: 12.3
- Spectral type:
- Primary proper motion RA: -9
- Primary proper motion DEC: -18
- Secondary proper motion RA: -4
- Secondary proper motion DEC: 5
- Durchmusterung:
- Notes: