18438-3819
- Unique Name: 18438-3819COO 227AB
- RA: 18 43 46.94
- Dec: -38 19 24.3
- Discoverer: COO
- Discoverer Number: 227
- Components: AB
- First year: 1894
- Last year: 2010
- Observations: 21
- First position angle: 215
- Last position angle: 213
- First separation: 25.0
- Last separation: 29.0
- Mag first component: 5.12
- Mag second component: 10.01
- Spectral type: A2Vn
- Primary proper motion RA: 1
- Primary proper motion DEC: -54
- Secondary proper motion RA: 0
- Secondary proper motion DEC: -59
- Durchmusterung: -3813036
- Notes: N D
