21100+2354
- Unique Name: 21100+2354POU5211AB
- RA: 21 10 01.00
- Dec: +23 54 21.5
- Discoverer: POU
- Discoverer Number: 5211
- Components: AB
- First year: 1897
- Last year: 2012
- Observations: 5
- First position angle: 339
- Last position angle: 328
- First separation: 16.5
- Last separation: 10.6
- Mag first component: 12.8
- Mag second component: 13.0
- Spectral type:
- Primary proper motion RA: 12
- Primary proper motion DEC: -1
- Secondary proper motion RA: -2
- Secondary proper motion DEC: -58
- Durchmusterung:
- Notes: