20499+2456
- Unique Name: 20499+2456BKO 870
- RA: 20 49 52.45
- Dec: +24 55 43.8
- Discoverer: BKO
- Discoverer Number: 870
- Components:
- First year: 1999
- Last year: 2009
- Observations: 4
- First position angle: 235
- Last position angle: 238
- First separation: 8.3
- Last separation: 8.3
- Mag first component: 13.9
- Mag second component: 14.9
- Spectral type:
- Primary proper motion RA: 18
- Primary proper motion DEC: 10
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: