21439+5344
- Unique Name: 21439+5344HJ 3058
- RA: 21 43 56.28
- Dec: +53 42 42.7
- Discoverer: HJ
- Discoverer Number: 3058
- Components:
- First year: 1831
- Last year: 2009
- Observations: 5
- First position angle: 275
- Last position angle: 264
- First separation: 8.0
- Last separation: 8.7
- Mag first component: 11.1
- Mag second component: 12.2
- Spectral type: K:I?
- Primary proper motion RA: 0
- Primary proper motion DEC: -5
- Secondary proper motion RA: -7
- Secondary proper motion DEC: -5
- Durchmusterung:
- Notes: