20556+4453
- Unique Name: 20556+4453COU2648
- RA: 20 55 33.87
- Dec: +44 52 50.5
- Discoverer: COU
- Discoverer Number: 2648
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 21
- Last position angle: 21
- First separation: 1.4
- Last separation: 1.4
- Mag first component: 10.9
- Mag second component: 12.2
- Spectral type:
- Primary proper motion RA: 2
- Primary proper motion DEC: -5
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: