21178+5344
- Unique Name: 21178+5344TDT2891
- RA: 21 17 46.69
- Dec: +53 44 06.1
- Discoverer: TDT
- Discoverer Number: 2891
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 201
- Last position angle: 201
- First separation: 0.5
- Last separation: 0.5
- Mag first component: 10.98
- Mag second component: 11.08
- Spectral type: A0V
- Primary proper motion RA: 1
- Primary proper motion DEC: -2
- Secondary proper motion RA: 1
- Secondary proper motion DEC: -2
- Durchmusterung:
- Notes: