18181+2318
- Unique Name: 18181+2318BUP 181AC
- RA: 18 18 07.72
- Dec: +23 17 49.0
- Discoverer: BUP
- Discoverer Number: 181
- Components: AC
- First year: 1878
- Last year: 2012
- Observations: 15
- First position angle: 126
- Last position angle: 125
- First separation: 156.3
- Last separation: 154.1
- Mag first component: 6.68
- Mag second component: 10.04
- Spectral type: K5
- Primary proper motion RA: 12
- Primary proper motion DEC: -12
- Secondary proper motion RA: -8
- Secondary proper motion DEC: 2
- Durchmusterung: +23 3300
- Notes: