12104+5455
- Unique Name: 12104+5455ES 73AB
- RA: 12 10 21.89
- Dec: +54 54 36.2
- Discoverer: ES
- Discoverer Number: 73
- Components: AB
- First year: 1901
- Last year: 2007
- Observations: 15
- First position angle: 21
- Last position angle: 28
- First separation: 30.6
- Last separation: 36.9
- Mag first component: 9.3
- Mag second component: 11.4
- Spectral type: K0
- Primary proper motion RA: -21
- Primary proper motion DEC: -39
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +55 1515
- Notes: