21586+4442
- Unique Name: 21586+4442ES 683
- RA: 21 58 34.32
- Dec: +44 41 32.5
- Discoverer: ES
- Discoverer Number: 683
- Components:
- First year: 1895
- Last year: 2002
- Observations: 16
- First position angle: 248
- Last position angle: 250
- First separation: 8.6
- Last separation: 9.1
- Mag first component: 8.63
- Mag second component: 10.42
- Spectral type: F0
- Primary proper motion RA: -2
- Primary proper motion DEC: 1
- Secondary proper motion RA: -1
- Secondary proper motion DEC: 5
- Durchmusterung: +43 4098
- Notes: D
