21439+4517
- Unique Name: 21439+4517TDT3123
- RA: 21 43 51.38
- Dec: +45 17 15.7
- Discoverer: TDT
- Discoverer Number: 3123
- Components:
- First year: 1991
- Last year: 1991
- Observations: 1
- First position angle: 242
- Last position angle: 242
- First separation: 1.5
- Last separation: 1.5
- Mag first component: 11.94
- Mag second component: 12.8
- Spectral type:
- Primary proper motion RA: -1
- Primary proper motion DEC: -6
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes:
