Link
Related laboratory
Related laboratory
- Yokoyama-lab at University of Tokyo
- High Altitude Observatory
- Astrophysics Laboratory at Chiba university
Solar global magnetic field
Solar global magnetic field
- Relative sunspot number and butterfly diagram (NASA web page)
- Relative sunspot number and butterfly diagram (Lisa Upton's web page)
- Magnetic butterfly diagram by Hathaway
- Sunspot number data
- Sunspot sketch by Galileo
Helpful link
Helpful link
Japanese link
Japanese link