21105+3418
- Unique Name: 21105+3418ES 2706
- RA: 21 10 27.87
- Dec: +34 19 41.0
- Discoverer: ES
- Discoverer Number: 2706
- Components:
- First year: 1927
- Last year: 2010
- Observations: 6
- First position angle: 34
- Last position angle: 33
- First separation: 13.7
- Last separation: 13.7
- Mag first component: 9.95
- Mag second component: 10.9
- Spectral type: A2IV
- Primary proper motion RA: 2
- Primary proper motion DEC: -2
- Secondary proper motion RA: -1
- Secondary proper motion DEC: 2
- Durchmusterung: +33 4184
- Notes: