21108+4417
- Unique Name: 21108+4417A 882
- RA: 21 10 47.78
- Dec: +44 17 19.1
- Discoverer: A
- Discoverer Number: 882
- Components:
- First year: 1904
- Last year: 1928
- Observations: 3
- First position angle: 232
- Last position angle: 232
- First separation: 2.3
- Last separation: 2.2
- Mag first component: 8.11
- Mag second component: 14.3
- Spectral type: K2
- Primary proper motion RA: 4
- Primary proper motion DEC: -14
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +43 3828
- Notes: