21378+3739
- Unique Name: 21378+3739SEI1527AB
- RA: 21 37 52.23
- Dec: +37 39 04.0
- Discoverer: SEI
- Discoverer Number: 1527
- Components: AB
- First year: 1895
- Last year: 2013
- Observations: 7
- First position angle: 335
- Last position angle: 330
- First separation: 26.0
- Last separation: 25.3
- Mag first component: 9.88
- Mag second component: 12.89
- Spectral type:
- Primary proper motion RA: 3
- Primary proper motion DEC: -4
- Secondary proper motion RA: -2
- Secondary proper motion DEC: -4
- Durchmusterung: +37 4374
- Notes: