15509+1911
- Unique Name: 15509+1911A 2078
- RA: 15 50 53.32
- Dec: +19 10 48.9
- Discoverer: A
- Discoverer Number: 2078
- Components:
- First year: 1909
- Last year: 2010
- Observations: 57
- First position angle: 153
- Last position angle: 166
- First separation: 0.9
- Last separation: 1.1
- Mag first component: 8.93
- Mag second component: 9.57
- Spectral type: F2
- Primary proper motion RA: -15
- Primary proper motion DEC: -16
- Secondary proper motion RA: -15
- Secondary proper motion DEC: -16
- Durchmusterung: +19 3023
- Notes: