21058+3929
- Unique Name: 21058+3929A 2691CD
- RA: 21 05 43.12
- Dec: +39 29 48.5
- Discoverer: A
- Discoverer Number: 2691
- Components: CD
- First year: 1920
- Last year: 2002
- Observations: 6
- First position angle: 274
- Last position angle: 275
- First separation: 6.0
- Last separation: 6.4
- Mag first component: 11.81
- Mag second component: 14.3
- Spectral type:
- Primary proper motion RA: 1
- Primary proper motion DEC: -7
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: