04209+5023
- Unique Name: 04209+5023STF 519AB
- RA: 04 20 53.71
- Dec: +50 22 39.0
- Discoverer: STF
- Discoverer Number: 519
- Components: AB
- First year: 1892
- Last year: 2008
- Observations: 19
- First position angle: 346
- Last position angle: 348
- First separation: 18.5
- Last separation: 18.3
- Mag first component: 7.85
- Mag second component: 9.4
- Spectral type: K2
- Primary proper motion RA: -2
- Primary proper motion DEC: -1
- Secondary proper motion RA: 0
- Secondary proper motion DEC: -2
- Durchmusterung: +50 976
- Notes: D
