21070+3839
- Unique Name: 21070+3839ES 2059
- RA: 21 07 02.12
- Dec: +38 39 31.7
- Discoverer: ES
- Discoverer Number: 2059
- Components:
- First year: 1923
- Last year: 2013
- Observations: 8
- First position angle: 266
- Last position angle: 267
- First separation: 6.5
- Last separation: 7.0
- Mag first component: 10.11
- Mag second component: 12.6
- Spectral type: B8II
- Primary proper motion RA: 5
- Primary proper motion DEC: -5
- Secondary proper motion RA: -4
- Secondary proper motion DEC: -5
- Durchmusterung: +38 4351
- Notes: