21215+5434
- Unique Name: 21215+5434ROE 91AE
- RA: 21 21 29.91
- Dec: +54 33 27.8
- Discoverer: ROE
- Discoverer Number: 91
- Components: AE
- First year: 1915
- Last year: 2012
- Observations: 4
- First position angle: 256
- Last position angle: 256
- First separation: 80.8
- Last separation: 82.1
- Mag first component: 11.9
- Mag second component: 13.22
- Spectral type:
- Primary proper motion RA: -4
- Primary proper motion DEC: -20
- Secondary proper motion RA: 4
- Secondary proper motion DEC: 5
- Durchmusterung:
- Notes: