21345+4725
- Unique Name: 21345+4725ABH 146AJ
- RA: 21 34 25.29
- Dec: +47 25 12.7
- Discoverer: ABH
- Discoverer Number: 146
- Components: AJ
- First year: 1987
- Last year: 2003
- Observations: 4
- First position angle: 251
- Last position angle: 250
- First separation: 107.7
- Last separation: 107.5
- Mag first component: 9.94
- Mag second component: 12.0
- Spectral type: B8III
- Primary proper motion RA: -1
- Primary proper motion DEC: 1
- Secondary proper motion RA: -1
- Secondary proper motion DEC: 0
- Durchmusterung:
- Notes: U
