21128+3210
- Unique Name: 21128+3210TDT2827
- RA: 21 12 49.26
- Dec: +32 09 34.7
- Discoverer: TDT
- Discoverer Number: 2827
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 297
- Last position angle: 297
- First separation: 2.5
- Last separation: 2.5
- Mag first component: 12.04
- Mag second component: 12.73
- Spectral type:
- Primary proper motion RA: -3
- Primary proper motion DEC: -32
- Secondary proper motion RA: -3
- Secondary proper motion DEC: -32
- Durchmusterung:
- Notes: