17558+3117
- Unique Name: 17558+3117SEI 552
- RA: 17 55 49.46
- Dec: +31 17 52.8
- Discoverer: SEI
- Discoverer Number: 552
- Components:
- First year: 1899
- Last year: 2008
- Observations: 11
- First position angle: 233
- Last position angle: 235
- First separation: 5.5
- Last separation: 5.6
- Mag first component: 10.57
- Mag second component: 11.3
- Spectral type:
- Primary proper motion RA: -3
- Primary proper motion DEC: 4
- Secondary proper motion RA: -7
- Secondary proper motion DEC: -6
- Durchmusterung:
- Notes: N