21554+5608
- Unique Name: 21554+5608OSO 163AB
- RA: 21 55 25.67
- Dec: +56 08 26.3
- Discoverer: OSO
- Discoverer Number: 163
- Components: AB
- First year: 1994
- Last year: 2000
- Observations: 5
- First position angle: 142
- Last position angle: 150
- First separation: 9.5
- Last separation: 9.2
- Mag first component: 11.65
- Mag second component: 17.6
- Spectral type: sdF6
- Primary proper motion RA: 216
- Primary proper motion DEC: 103
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: N
