21429+3734
- Unique Name: 21429+3734ES 2521AC
- RA: 21 42 55.76
- Dec: +37 34 09.8
- Discoverer: ES
- Discoverer Number: 2521
- Components: AC
- First year: 1999
- Last year: 2002
- Observations: 2
- First position angle: 93
- Last position angle: 93
- First separation: 16.3
- Last separation: 16.6
- Mag first component: 9.5
- Mag second component: 13.48
- Spectral type: A0
- Primary proper motion RA: -5
- Primary proper motion DEC: -9
- Secondary proper motion RA: 23
- Secondary proper motion DEC: -7
- Durchmusterung:
- Notes: