21379+2743
- Unique Name: 21379+2743HDS3080Aa,Ab
- RA: 21 38 00.07
- Dec: +27 43 26.1
- Discoverer: HDS
- Discoverer Number: 3080
- Components: Aa,Ab
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 109
- Last position angle: 109
- First separation: 0.2
- Last separation: 0.2
- Mag first component: 10.17
- Mag second component: 11.75
- Spectral type: M2
- Primary proper motion RA: 472
- Primary proper motion DEC: -75
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +27 4120
- Notes: NO
