21197+4228
- Unique Name: 21197+4228ES 1583AB
- RA: 21 19 41.17
- Dec: +42 28 37.2
- Discoverer: ES
- Discoverer Number: 1583
- Components: AB
- First year: 1895
- Last year: 2013
- Observations: 8
- First position angle: 240
- Last position angle: 238
- First separation: 13.6
- Last separation: 13.0
- Mag first component: 11.14
- Mag second component: 11.32
- Spectral type: A2Vb
- Primary proper motion RA: 2
- Primary proper motion DEC: 1
- Secondary proper motion RA: 5
- Secondary proper motion DEC: -1
- Durchmusterung: +41 4093
- Notes: U
