18339+5221
- Unique Name: 18339+5221A 1377AB
- RA: 18 33 56.69
- Dec: +52 21 12.6
- Discoverer: A
- Discoverer Number: 1377
- Components: AB
- First year: 1906
- Last year: 2011
- Observations: 205
- First position angle: 269
- Last position angle: 127
- First separation: 0.2
- Last separation: 0.2
- Mag first component: 6.2
- Mag second component: 6.4
- Spectral type: G9III
- Primary proper motion RA: -8
- Primary proper motion DEC: 2
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +52 2238
- Notes: NO
