21028+3534
- Unique Name: 21028+3534SEI1376AC
- RA: 21 02 45.85
- Dec: +35 33 36.0
- Discoverer: SEI
- Discoverer Number: 1376
- Components: AC
- First year: 1896
- Last year: 2012
- Observations: 4
- First position angle: 270
- Last position angle: 272
- First separation: 11.3
- Last separation: 11.4
- Mag first component: 9.5
- Mag second component: 13.3
- Spectral type:
- Primary proper motion RA: -1
- Primary proper motion DEC: 3
- Secondary proper motion RA: 3
- Secondary proper motion DEC: -2
- Durchmusterung:
- Notes: