21393+2043
- Unique Name: 21393+2043STT 445
- RA: 21 39 19.03
- Dec: +20 43 17.8
- Discoverer: STT
- Discoverer Number: 445
- Components:
- First year: 1843
- Last year: 2009
- Observations: 57
- First position angle: 101
- Last position angle: 119
- First separation: 0.7
- Last separation: 1.0
- Mag first component: 9.54
- Mag second component: 9.87
- Spectral type: A2
- Primary proper motion RA: -6
- Primary proper motion DEC: -14
- Secondary proper motion RA: -6
- Secondary proper motion DEC: -14
- Durchmusterung: +20 4982
- Notes: N
