21587+6434
- Unique Name: 21587+6434HJ 1713
- RA: 21 58 42.66
- Dec: +64 33 49.4
- Discoverer: HJ
- Discoverer Number: 1713
- Components:
- First year: 1828
- Last year: 2003
- Observations: 11
- First position angle: 126
- Last position angle: 127
- First separation: 18.0
- Last separation: 18.7
- Mag first component: 8.69
- Mag second component: 10.67
- Spectral type: G5
- Primary proper motion RA: 60
- Primary proper motion DEC: -57
- Secondary proper motion RA: 55
- Secondary proper motion DEC: -54
- Durchmusterung: +63 1792
- Notes: