21403+0344
- Unique Name: 21403+0344STT 446
- RA: 21 40 16.32
- Dec: +03 44 13.5
- Discoverer: STT
- Discoverer Number: 446
- Components:
- First year: 1845
- Last year: 2004
- Observations: 21
- First position angle: 175
- Last position angle: 174
- First separation: 5.5
- Last separation: 6.6
- Mag first component: 8.56
- Mag second component: 10.55
- Spectral type: F5
- Primary proper motion RA: 54
- Primary proper motion DEC: 14
- Secondary proper motion RA: 58
- Secondary proper motion DEC: 10
- Durchmusterung: +03 4597
- Notes: