21311+5008
- Unique Name: 21311+5008HU 593
- RA: 21 31 06.22
- Dec: +50 07 44.3
- Discoverer: HU
- Discoverer Number: 593
- Components:
- First year: 1902
- Last year: 2005
- Observations: 15
- First position angle: 59
- Last position angle: 60
- First separation: 1.7
- Last separation: 1.5
- Mag first component: 9.57
- Mag second component: 10.22
- Spectral type: A0
- Primary proper motion RA: -6
- Primary proper motion DEC: -3
- Secondary proper motion RA: -6
- Secondary proper motion DEC: -3
- Durchmusterung: +49 3540
- Notes: