18181+2318
- Unique Name: 18181+2318BUP 181AB
- RA: 18 18 07.72
- Dec: +23 17 49.0
- Discoverer: BUP
- Discoverer Number: 181
- Components: AB
- First year: 1894
- Last year: 2001
- Observations: 7
- First position angle: 223
- Last position angle: 222
- First separation: 37.6
- Last separation: 37.9
- Mag first component: 6.68
- Mag second component: 11.5
- Spectral type: K5
- Primary proper motion RA: 12
- Primary proper motion DEC: -12
- Secondary proper motion RA: 5
- Secondary proper motion DEC: -6
- Durchmusterung: +23 3299
- Notes: