21328+3904
- Unique Name: 21328+3904A 1443
- RA: 21 32 49.66
- Dec: +39 04 20.1
- Discoverer: A
- Discoverer Number: 1443
- Components:
- First year: 1906
- Last year: 2009
- Observations: 22
- First position angle: 204
- Last position angle: 240
- First separation: 0.4
- Last separation: 0.3
- Mag first component: 9.28
- Mag second component: 10.13
- Spectral type: A
- Primary proper motion RA: -12
- Primary proper motion DEC: -2
- Secondary proper motion RA:
- Secondary proper motion DEC:
- Durchmusterung: +38 4527
- Notes: