21339+5045
- Unique Name: 21339+5045HDS3070
- RA: 21 33 55.42
- Dec: +50 45 03.9
- Discoverer: HDS
- Discoverer Number: 3070
- Components:
- First year: 1902
- Last year: 2004
- Observations: 11
- First position angle: 347
- Last position angle: 348
- First separation: 5.4
- Last separation: 5.4
- Mag first component: 9.42
- Mag second component: 9.49
- Spectral type: B8
- Primary proper motion RA: 2
- Primary proper motion DEC: -2
- Secondary proper motion RA: 1
- Secondary proper motion DEC: 0
- Durchmusterung: +50 3363
- Notes: N
