Solar cycle: Quick Facts

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Line graph showing average yearly sunspot numbers from 1600 to 2000, with notable low-activity periods highlighted as the Maunder minimum (mid-1600s to early 1700s) and Dalton minimum (late 1700s to early 1800s). The graph illustrates cycles of rising and falling sunspot counts over time.

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solar activity solar cycle 25 solar minimum solar cycle 23 solar cycle 24 solar maximum Space weather sunspot cycle Sunspot Solar flare Solar prominence Facula

Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.

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The orbits of the planets and other elements of the solar system, including asteroids, Kuiper belt, Oort cloud, comet

Space Odyssey