21178+4607
- Unique Name: 21178+4607TDT2892
- RA: 21 17 47.14
- Dec: +46 07 15.4
- Discoverer: TDT
- Discoverer Number: 2892
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 156
- Last position angle: 156
- First separation: 2.5
- Last separation: 2.5
- Mag first component: 11.67
- Mag second component: 12.54
- Spectral type:
- Primary proper motion RA: 18
- Primary proper motion DEC: -2
- Secondary proper motion RA: 18
- Secondary proper motion DEC: -2
- Durchmusterung:
- Notes: