21429+2152
- Unique Name: 21429+2152HJ 1683AC
- RA: 21 42 55.32
- Dec: +21 52 06.5
- Discoverer: HJ
- Discoverer Number: 1683
- Components: AC
- First year: 1892
- Last year: 2013
- Observations: 11
- First position angle: 310
- Last position angle: 315
- First separation: 25.6
- Last separation: 27.2
- Mag first component: 10.07
- Mag second component: 11.46
- Spectral type: F9V
- Primary proper motion RA: 10
- Primary proper motion DEC: -16
- Secondary proper motion RA: 14
- Secondary proper motion DEC: 6
- Durchmusterung:
- Notes: L
