05403+3721
- Unique Name: 05403+3721SEI 366AB
- RA: 05 40 13.54
- Dec: +37 21 24.0
- Discoverer: SEI
- Discoverer Number: 366
- Components: AB
- First year: 1895
- Last year: 2007
- Observations: 5
- First position angle: 227
- Last position angle: 228
- First separation: 28.0
- Last separation: 28.4
- Mag first component: 11.1
- Mag second component: 13.5
- Spectral type:
- Primary proper motion RA: -5
- Primary proper motion DEC: -4
- Secondary proper motion RA: -3
- Secondary proper motion DEC: -6
- Durchmusterung:
- Notes: