21417+4022
- Unique Name: 21417+4022TDT3111
- RA: 21 41 42.96
- Dec: +40 21 36.9
- Discoverer: TDT
- Discoverer Number: 3111
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 296
- Last position angle: 296
- First separation: 2.7
- Last separation: 2.7
- Mag first component: 12.79
- Mag second component: 12.97
- Spectral type:
- Primary proper motion RA: -3
- Primary proper motion DEC: -6
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: