20331+2852
- Unique Name: 20331+2852ES 507AB
- RA: 20 33 03.81
- Dec: +28 51 48.0
- Discoverer: ES
- Discoverer Number: 507
- Components: AB
- First year: 1907
- Last year: 2011
- Observations: 5
- First position angle: 296
- Last position angle: 294
- First separation: 7.3
- Last separation: 7.2
- Mag first component: 8.78
- Mag second component: 11.4
- Spectral type: F
- Primary proper motion RA: -5
- Primary proper motion DEC: -19
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +28 3790
- Notes: