21093+2140
- Unique Name: 21093+2140UC 4391
- RA: 21 09 18.14
- Dec: +21 40 04.6
- Discoverer: UC
- Discoverer Number: 4391
- Components:
- First year: 1999
- Last year: 2001
- Observations: 2
- First position angle: 144
- Last position angle: 144
- First separation: 54.7
- Last separation: 54.6
- Mag first component: 15.4
- Mag second component: 16.1
- Spectral type:
- Primary proper motion RA: -61
- Primary proper motion DEC: 28
- Secondary proper motion RA: -60
- Secondary proper motion DEC: 45
- Durchmusterung:
- Notes: V
