20478+0857
- Unique Name: 20478+0857UC 4290
- RA: 20 47 47.42
- Dec: +08 57 04.8
- Discoverer: UC
- Discoverer Number: 4290
- Components:
- First year: 2000
- Last year: 2000
- Observations: 2
- First position angle: 4
- Last position angle: 5
- First separation: 86.7
- Last separation: 86.7
- Mag first component: 14.79
- Mag second component: 14.7
- Spectral type:
- Primary proper motion RA: 50
- Primary proper motion DEC: 96
- Secondary proper motion RA: 27
- Secondary proper motion DEC: 88
- Durchmusterung:
- Notes: V
