21373+5900
- Unique Name: 21373+5900HJ 1677
- RA: 21 37 19.98
- Dec: +59 00 16.5
- Discoverer: HJ
- Discoverer Number: 1677
- Components:
- First year: 1828
- Last year: 2012
- Observations: 17
- First position angle: 129
- Last position angle: 128
- First separation: 13.0
- Last separation: 16.3
- Mag first component: 9.87
- Mag second component: 10.59
- Spectral type: F8
- Primary proper motion RA: 21
- Primary proper motion DEC: 33
- Secondary proper motion RA: 20
- Secondary proper motion DEC: 32
- Durchmusterung: +58 2298
- Notes: N
