20578+3923
- Unique Name: 20578+3923BKO 475
- RA: 20 57 49.85
- Dec: +39 22 42.7
- Discoverer: BKO
- Discoverer Number: 475
- Components:
- First year: 2000
- Last year: 2008
- Observations: 3
- First position angle: 269
- Last position angle: 267
- First separation: 5.5
- Last separation: 5.6
- Mag first component: 10.6
- Mag second component: 12.5
- Spectral type:
- Primary proper motion RA: -1
- Primary proper motion DEC: 21
- Secondary proper motion RA: -21
- Secondary proper motion DEC: -4
- Durchmusterung:
- Notes: