04210+5015
- Unique Name: 04210+5015S 445AC
- RA: 04 20 57.50
- Dec: +50 15 17.4
- Discoverer: S
- Discoverer Number: 445
- Components: AC
- First year: 1824
- Last year: 2011
- Observations: 18
- First position angle: 261
- Last position angle: 262
- First separation: 149.6
- Last separation: 150.1
- Mag first component: 7.31
- Mag second component: 9.3
- Spectral type: K2
- Primary proper motion RA: 0
- Primary proper motion DEC: -4
- Secondary proper motion RA: -3
- Secondary proper motion DEC: 0
- Durchmusterung: +49 1160
- Notes: N