21593+4606
- Unique Name: 21593+4606COU2138
- RA: 21 59 15.17
- Dec: +46 05 30.0
- Discoverer: COU
- Discoverer Number: 2138
- Components:
- First year: 1982
- Last year: 2008
- Observations: 21
- First position angle: 3
- Last position angle: 351
- First separation: 0.3
- Last separation: 0.2
- Mag first component: 9.5
- Mag second component: 9.8
- Spectral type: K0
- Primary proper motion RA: 227
- Primary proper motion DEC: 91
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +45 3750
- Notes: O