21109+2359
- Unique Name: 21109+2359POU5223
- RA: 21 10 53.66
- Dec: +23 59 22.5
- Discoverer: POU
- Discoverer Number: 5223
- Components:
- First year: 1897
- Last year: 2009
- Observations: 4
- First position angle: 356
- Last position angle: 350
- First separation: 10.7
- Last separation: 9.7
- Mag first component: 11.97
- Mag second component: 13.9
- Spectral type:
- Primary proper motion RA: 2
- Primary proper motion DEC: -2
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: