21003+3543
- Unique Name: 21003+3543SEI1361
- RA: 21 00 14.18
- Dec: +35 43 22.9
- Discoverer: SEI
- Discoverer Number: 1361
- Components:
- First year: 1896
- Last year: 2012
- Observations: 7
- First position angle: 277
- Last position angle: 281
- First separation: 22.0
- Last separation: 20.8
- Mag first component: 10.65
- Mag second component: 12.15
- Spectral type:
- Primary proper motion RA: -7
- Primary proper motion DEC: -15
- Secondary proper motion RA: 1
- Secondary proper motion DEC: 1
- Durchmusterung:
- Notes: N
