21429+2152
- Unique Name: 21429+2152HJ 1683AB
- RA: 21 42 55.32
- Dec: +21 52 06.5
- Discoverer: HJ
- Discoverer Number: 1683
- Components: AB
- First year: 1828
- Last year: 2013
- Observations: 9
- First position angle: 174
- Last position angle: 169
- First separation: 5.0
- Last separation: 12.6
- Mag first component: 10.07
- Mag second component: 11.7
- Spectral type: F9V
- Primary proper motion RA: 10
- Primary proper motion DEC: -16
- Secondary proper motion RA: 7
- Secondary proper motion DEC: -19
- Durchmusterung: +21 4605
- Notes:
