21100+4326
- Unique Name: 21100+4326ES 1453
- RA: 21 10 00.55
- Dec: +43 26 00.7
- Discoverer: ES
- Discoverer Number: 1453
- Components:
- First year: 1895
- Last year: 2007
- Observations: 11
- First position angle: 73
- Last position angle: 68
- First separation: 5.0
- Last separation: 5.4
- Mag first component: 8.97
- Mag second component: 9.94
- Spectral type:
- Primary proper motion RA: 10
- Primary proper motion DEC: 6
- Secondary proper motion RA: 10
- Secondary proper motion DEC: 6
- Durchmusterung: +42 3988
- Notes: D
