21189+5938
- Unique Name: 21189+5938MLB1092
- RA: 21 18 54.31
- Dec: +59 38 04.1
- Discoverer: MLB
- Discoverer Number: 1092
- Components:
- First year: 1898
- Last year: 2003
- Observations: 8
- First position angle: 109
- Last position angle: 106
- First separation: 11.0
- Last separation: 10.4
- Mag first component: 8.56
- Mag second component: 10.0
- Spectral type: A2
- Primary proper motion RA: 8
- Primary proper motion DEC: 9
- Secondary proper motion RA: 5
- Secondary proper motion DEC: 5
- Durchmusterung: +59 2354
- Notes: