21028+3534
- Unique Name: 21028+3534SEI1375AB
- RA: 21 02 45.85
- Dec: +35 33 36.0
- Discoverer: SEI
- Discoverer Number: 1375
- Components: AB
- First year: 1896
- Last year: 2007
- Observations: 7
- First position angle: 339
- Last position angle: 337
- First separation: 5.5
- Last separation: 6.7
- Mag first component: 9.5
- Mag second component: 16.8
- Spectral type:
- Primary proper motion RA: -1
- Primary proper motion DEC: 3
- Secondary proper motion RA: 0
- Secondary proper motion DEC: -4
- Durchmusterung:
- Notes: