20553+4218
- Unique Name: 20553+4218OSO 137AF
- RA: 20 55 16.75
- Dec: +42 18 00.6
- Discoverer: OSO
- Discoverer Number: 137
- Components: AF
- First year: 1995
- Last year: 2000
- Observations: 2
- First position angle: 141
- Last position angle: 137
- First separation: 18.5
- Last separation: 16.8
- Mag first component: 10.27
- Mag second component: 17.9
- Spectral type: G5
- Primary proper motion RA: 57
- Primary proper motion DEC: -390
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: N
