20478+2519
- Unique Name: 20478+2519BUP 218AC
- RA: 20 47 50.27
- Dec: +25 18 47.7
- Discoverer: BUP
- Discoverer Number: 218
- Components: AC
- First year: 1910
- Last year: 2001
- Observations: 3
- First position angle: 101
- Last position angle: 99
- First separation: 103.2
- Last separation: 102.9
- Mag first component: 11.27
- Mag second component: 11.7
- Spectral type:
- Primary proper motion RA: -5
- Primary proper motion DEC: -32
- Secondary proper motion RA: -3
- Secondary proper motion DEC: -10
- Durchmusterung:
- Notes: