21424+1750
- Unique Name: 21424+1750HU 373AB
- RA: 21 42 25.22
- Dec: +17 50 09.5
- Discoverer: HU
- Discoverer Number: 373
- Components: AB
- First year: 1877
- Last year: 2009
- Observations: 14
- First position angle: 328
- Last position angle: 299
- First separation: 1.2
- Last separation: 1.0
- Mag first component: 8.9
- Mag second component: 10.44
- Spectral type: K0
- Primary proper motion RA: -24
- Primary proper motion DEC: -6
- Secondary proper motion RA: -24
- Secondary proper motion DEC: -6
- Durchmusterung: +17 4626
- Notes: N