18421+3445
- Unique Name: 18421+3445STF2372AB
- RA: 18 42 08.09
- Dec: +34 44 46.7
- Discoverer: STF
- Discoverer Number: 2372
- Components: AB
- First year: 1783
- Last year: 2013
- Observations: 70
- First position angle: 85
- Last position angle: 82
- First separation: 22.9
- Last separation: 24.9
- Mag first component: 6.45
- Mag second component: 7.73
- Spectral type: B5V
- Primary proper motion RA: 0
- Primary proper motion DEC: -4
- Secondary proper motion RA: 1
- Secondary proper motion DEC: -3
- Durchmusterung:
- Notes: NY
