13173+2840
- Unique Name: 13173+2840ES 440
- RA: 13 17 20.47
- Dec: +28 40 07.6
- Discoverer: ES
- Discoverer Number: 440
- Components:
- First year: 1907
- Last year: 2011
- Observations: 9
- First position angle: 2
- Last position angle: 181
- First separation: 2.6
- Last separation: 2.3
- Mag first component: 10.9
- Mag second component: 11.2
- Spectral type: G5
- Primary proper motion RA: 10
- Primary proper motion DEC: 29
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +29 2387
- Notes: