21123+3808
- Unique Name: 21123+3808TDT2822
- RA: 21 12 20.41
- Dec: +38 07 50.8
- Discoverer: TDT
- Discoverer Number: 2822
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 185
- Last position angle: 185
- First separation: 0.6
- Last separation: 0.6
- Mag first component: 11.65
- Mag second component: 11.93
- Spectral type:
- Primary proper motion RA: -12
- Primary proper motion DEC: -8
- Secondary proper motion RA: -12
- Secondary proper motion DEC: -8
- Durchmusterung:
- Notes: