21392+4411
- Unique Name: 21392+4411BU 1331
- RA: 21 39 12.22
- Dec: +44 11 04.4
- Discoverer: BU
- Discoverer Number: 1331
- Components:
- First year: 1903
- Last year: 2005
- Observations: 8
- First position angle: 351
- Last position angle: 341
- First separation: 0.9
- Last separation: 0.9
- Mag first component: 9.3
- Mag second component: 10.4
- Spectral type: A5
- Primary proper motion RA: 3
- Primary proper motion DEC: -7
- Secondary proper motion RA: 3
- Secondary proper motion DEC: -7
- Durchmusterung: +43 3996
- Notes: