21584+5245
- Unique Name: 21584+5245ES 1015AC
- RA: 21 58 25.44
- Dec: +52 44 28.4
- Discoverer: ES
- Discoverer Number: 1015
- Components: AC
- First year: 1910
- Last year: 2000
- Observations: 2
- First position angle: 0
- Last position angle: 18
- First separation: 15.0
- Last separation: 14.5
- Mag first component: 10.51
- Mag second component: 15.2
- Spectral type:
- Primary proper motion RA: 14
- Primary proper motion DEC: -3
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: