21176+3945
- Unique Name: 21176+3945STF2785
- RA: 21 17 36.79
- Dec: +39 44 46.1
- Discoverer: STF
- Discoverer Number: 2785
- Components:
- First year: 1832
- Last year: 2009
- Observations: 26
- First position angle: 235
- Last position angle: 233
- First separation: 2.5
- Last separation: 2.9
- Mag first component: 7.94
- Mag second component: 9.94
- Spectral type: F2V
- Primary proper motion RA: 27
- Primary proper motion DEC: 6
- Secondary proper motion RA: 27
- Secondary proper motion DEC: 6
- Durchmusterung: +39 4510
- Notes: