18172+5103
- Unique Name: 18172+5103AG 220
- RA: 18 17 12.57
- Dec: +51 02 50.4
- Discoverer: AG
- Discoverer Number: 220
- Components:
- First year: 1900
- Last year: 2005
- Observations: 16
- First position angle: 129
- Last position angle: 127
- First separation: 11.3
- Last separation: 10.9
- Mag first component: 10.32
- Mag second component: 10.36
- Spectral type: F8 F8
- Primary proper motion RA: 11
- Primary proper motion DEC: 8
- Secondary proper motion RA: 10
- Secondary proper motion DEC: 9
- Durchmusterung: +50 2557
- Notes: D
