16509+3556
- Unique Name: 16509+3556JNN 110Ca,Cb
- RA: 16 51 09.95
- Dec: +35 55 07.5
- Discoverer: JNN
- Discoverer Number: 110
- Components: Ca,Cb
- First year: 2008
- Last year: 2009
- Observations: 4
- First position angle: 316
- Last position angle: 316
- First separation: 1.0
- Last separation: 1.0
- Mag first component: 15.0
- Mag second component: 16.8
- Spectral type: M4 M5.5
- Primary proper motion RA: -69
- Primary proper motion DEC: 171
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung:
- Notes: V