21426+4226
- Unique Name: 21426+4226BU 1505BC
- RA: 21 42 32.99
- Dec: +42 26 16.6
- Discoverer: BU
- Discoverer Number: 1505
- Components: BC
- First year: 1998
- Last year: 2012
- Observations: 4
- First position angle: 176
- Last position angle: 174
- First separation: 21.3
- Last separation: 21.9
- Mag first component: 10.56
- Mag second component: 12.68
- Spectral type:
- Primary proper motion RA: 3
- Primary proper motion DEC: -14
- Secondary proper motion RA: -9
- Secondary proper motion DEC: -7
- Durchmusterung:
- Notes: