17139+7921
- Unique Name: 17139+7921UC 3308
- RA: 17 13 56.48
- Dec: +79 20 59.5
- Discoverer: UC
- Discoverer Number: 3308
- Components:
- First year: 1999
- Last year: 2004
- Observations: 2
- First position angle: 152
- Last position angle: 152
- First separation: 16.8
- Last separation: 16.7
- Mag first component: 14.9
- Mag second component: 15.4
- Spectral type:
- Primary proper motion RA: 19
- Primary proper motion DEC: -52
- Secondary proper motion RA: 19
- Secondary proper motion DEC: -51
- Durchmusterung:
- Notes: V
