21238+4710
- Unique Name: 21238+4710A 765AB
- RA: 21 23 50.18
- Dec: +47 09 52.4
- Discoverer: A
- Discoverer Number: 765
- Components: AB
- First year: 1904
- Last year: 2004
- Observations: 20
- First position angle: 42
- Last position angle: 26
- First separation: 0.3
- Last separation: 0.5
- Mag first component: 9.02
- Mag second component: 7.33
- Spectral type: B0V
- Primary proper motion RA: 0
- Primary proper motion DEC: -6
- Secondary proper motion RA: 0
- Secondary proper motion DEC: -6
- Durchmusterung: +46 3294
- Notes: