21417+2100
- Unique Name: 21417+2100UC 4531
- RA: 21 41 41.17
- Dec: +20 59 55.7
- Discoverer: UC
- Discoverer Number: 4531
- Components:
- First year: 2000
- Last year: 2004
- Observations: 3
- First position angle: 213
- Last position angle: 213
- First separation: 69.8
- Last separation: 69.8
- Mag first component: 14.63
- Mag second component: 14.64
- Spectral type: M1+M1
- Primary proper motion RA: 77
- Primary proper motion DEC: -9
- Secondary proper motion RA: 77
- Secondary proper motion DEC: -11
- Durchmusterung:
- Notes: V
