20139+2357
- Unique Name: 20139+2357NYS 5A,BC
- RA: 20 13 55.10
- Dec: +23 57 29.1
- Discoverer: NYS
- Discoverer Number: 5
- Components: A,BC
- First year: 1982
- Last year: 2009
- Observations: 4
- First position angle: 135
- Last position angle: 135
- First separation: 18.6
- Last separation: 17.8
- Mag first component: 13.7
- Mag second component: 13.8
- Spectral type:
- Primary proper motion RA:
- Primary proper motion DEC:
- Secondary proper motion RA: -8
- Secondary proper motion DEC: 2
- Durchmusterung:
- Notes:
