21379+2743
- Unique Name: 21379+2743MLB1093AB
- RA: 21 38 00.07
- Dec: +27 43 26.1
- Discoverer: MLB
- Discoverer Number: 1093
- Components: AB
- First year: 1928
- Last year: 2007
- Observations: 17
- First position angle: 124
- Last position angle: 268
- First separation: 12.0
- Last separation: 26.7
- Mag first component: 9.8
- Mag second component: 12.6
- Spectral type: M2
- Primary proper motion RA: 471
- Primary proper motion DEC: -81
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +27 4120
- Notes: NL
