Solar Minima Explained
What is a Solar Minimum?
Solar minimum is the period of least solar activity in the Sun's 11-year solar cycle. During this phase, there are:
- Fewer sunspots on the Sun's surface.
- Reduced solar flares and coronal mass ejections (CMEs).
- A weaker magnetic field on the Sun.
Characteristics of Solar Minima
Key features of a solar minimum include:
- Sunspot Reduction: The number of sunspots decreases, sometimes leading to days or weeks with no spots at all.
- Decreased Solar Radiation: Ultraviolet (UV) radiation from the Sun decreases during this time, impacting Earth's atmosphere.