18543+4259
- Unique Name: 18543+4259OSO 105
- RA: 18 54 16.95
- Dec: +42 59 00.3
- Discoverer: OSO
- Discoverer Number: 105
- Components:
- First year: 1994
- Last year: 1998
- Observations: 2
- First position angle: 65
- Last position angle: 67
- First separation: 17.9
- Last separation: 17.3
- Mag first component: 9.95
- Mag second component: 17.5
- Spectral type: G2
- Primary proper motion RA: 39
- Primary proper motion DEC: 254
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +42 3187
- Notes: N
