16509+4259
- Unique Name: 16509+4259A 575
- RA: 16 50 52.52
- Dec: +42 58 32.5
- Discoverer: A
- Discoverer Number: 575
- Components:
- First year: 1903
- Last year: 2008
- Observations: 23
- First position angle: 130
- Last position angle: 148
- First separation: 0.7
- Last separation: 0.7
- Mag first component: 9.62
- Mag second component: 10.23
- Spectral type: G
- Primary proper motion RA: -16
- Primary proper motion DEC: 31
- Secondary proper motion RA: -16
- Secondary proper motion DEC: 31
- Durchmusterung: +43 2656
- Notes: