18356+0456
- Unique Name: 18356+0456BU 643AB
- RA: 18 35 36.48
- Dec: +04 56 09.8
- Discoverer: BU
- Discoverer Number: 643
- Components: AB
- First year: 1878
- Last year: 2000
- Observations: 11
- First position angle: 338
- Last position angle: 325
- First separation: 8.8
- Last separation: 12.9
- Mag first component: 6.46
- Mag second component: 12.5
- Spectral type: A1V
- Primary proper motion RA: 30
- Primary proper motion DEC: -30
- Secondary proper motion RA: -174
- Secondary proper motion DEC: 274
- Durchmusterung: +04 3801
- Notes: N
