18456+6404
- Unique Name: 18456+6404ES 1840
- RA: 18 45 35.59
- Dec: +64 04 02.7
- Discoverer: ES
- Discoverer Number: 1840
- Components:
- First year: 1898
- Last year: 2010
- Observations: 9
- First position angle: 222
- Last position angle: 216
- First separation: 8.2
- Last separation: 9.1
- Mag first component: 9.69
- Mag second component: 11.26
- Spectral type: A2
- Primary proper motion RA: 4
- Primary proper motion DEC: -1
- Secondary proper motion RA: 5
- Secondary proper motion DEC: -7
- Durchmusterung: +63 1460
- Notes: D
