21125+5318
- Unique Name: 21125+5318ES 209
- RA: 21 12 29.13
- Dec: +53 17 40.1
- Discoverer: ES
- Discoverer Number: 209
- Components:
- First year: 1910
- Last year: 2003
- Observations: 4
- First position angle: 237
- Last position angle: 238
- First separation: 6.1
- Last separation: 5.1
- Mag first component: 10.04
- Mag second component: 12.5
- Spectral type: A5
- Primary proper motion RA: -9
- Primary proper motion DEC: -10
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +52 2883
- Notes: