21093+3131
- Unique Name: 21093+3131COU1333
- RA: 21 09 18.60
- Dec: +31 30 38.6
- Discoverer: COU
- Discoverer Number: 1333
- Components:
- First year: 1975
- Last year: 2011
- Observations: 25
- First position angle: 244
- Last position angle: 251
- First separation: 0.7
- Last separation: 0.7
- Mag first component: 9.3
- Mag second component: 9.48
- Spectral type: G0
- Primary proper motion RA: 86
- Primary proper motion DEC: 14
- Secondary proper motion RA: 86
- Secondary proper motion DEC: 14
- Durchmusterung: +30 4336
- Notes: