18339+5221
- Unique Name: 18339+5221STF2348AB,C
- RA: 18 33 56.69
- Dec: +52 21 12.6
- Discoverer: STF
- Discoverer Number: 2348
- Components: AB,C
- First year: 1797
- Last year: 2012
- Observations: 63
- First position angle: 270
- Last position angle: 271
- First separation: 26.9
- Last separation: 25.7
- Mag first component: 5.5
- Mag second component: 8.65
- Spectral type: K0III+F0
- Primary proper motion RA: -3
- Primary proper motion DEC: 3
- Secondary proper motion RA: -7
- Secondary proper motion DEC: 1
- Durchmusterung: +52 2237
- Notes: NVD
