21415+8555
- Unique Name: 21415+8555TDT3110
- RA: 21 41 34.27
- Dec: +85 54 49.1
- Discoverer: TDT
- Discoverer Number: 3110
- Components:
- First year: 1899
- Last year: 2007
- Observations: 3
- First position angle: 68
- Last position angle: 67
- First separation: 2.7
- Last separation: 2.6
- Mag first component: 10.87
- Mag second component: 11.99
- Spectral type: G0V
- Primary proper motion RA: 240
- Primary proper motion DEC: 109
- Secondary proper motion RA: 240
- Secondary proper motion DEC: 109
- Durchmusterung:
- Notes: