21028+3534
- Unique Name: 21028+3534BTG 6AD
- RA: 21 02 45.85
- Dec: +35 33 36.0
- Discoverer: BTG
- Discoverer Number: 6
- Components: AD
- First year: 1998
- Last year: 2007
- Observations: 3
- First position angle: 274
- Last position angle: 274
- First separation: 15.8
- Last separation: 16.0
- Mag first component: 9.5
- Mag second component: 14.3
- Spectral type:
- Primary proper motion RA: -5
- Primary proper motion DEC: 7
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: