18127+5557
- Unique Name: 18127+5557ES 643
- RA: 18 12 45.93
- Dec: +55 55 56.3
- Discoverer: ES
- Discoverer Number: 643
- Components:
- First year: 1908
- Last year: 2003
- Observations: 5
- First position angle: 50
- Last position angle: 49
- First separation: 3.4
- Last separation: 4.0
- Mag first component: 10.71
- Mag second component: 12.9
- Spectral type:
- Primary proper motion RA: -47
- Primary proper motion DEC: 2
- Secondary proper motion RA: -8
- Secondary proper motion DEC: -22
- Durchmusterung: +55 2039
- Notes: