21306+4213
- Unique Name: 21306+4213STT 441
- RA: 21 30 35.00
- Dec: +42 12 40.4
- Discoverer: STT
- Discoverer Number: 441
- Components:
- First year: 1847
- Last year: 2003
- Observations: 17
- First position angle: 322
- Last position angle: 327
- First separation: 7.0
- Last separation: 6.1
- Mag first component: 8.27
- Mag second component: 11.26
- Spectral type: A7V
- Primary proper motion RA: -1
- Primary proper motion DEC: -9
- Secondary proper motion RA: 2
- Secondary proper motion DEC: -5
- Durchmusterung: +41 4169
- Notes:
