21140+3504
- Unique Name: 21140+3504ES 2258
- RA: 21 13 59.50
- Dec: +35 04 28.0
- Discoverer: ES
- Discoverer Number: 2258
- Components:
- First year: 1926
- Last year: 1977
- Observations: 2
- First position angle: 173
- Last position angle: 177
- First separation: 3.2
- Last separation: 2.7
- Mag first component: 10.41
- Mag second component: 13.2
- Spectral type:
- Primary proper motion RA: -2
- Primary proper motion DEC: 13
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +34 4341
- Notes: