The Sun is a medium size star.

Stefan Jung • 23. Dezember 2025

Without her and the solar system we would not exist, it all belongs together.

For example, at the transition from space to Earth’s atmosphere the incoming average sun energy is around 1.361 W/m² (solar constant). At Earth’s surface the daily average is around 165 W/m², this corresponds a yearly average of 1.445 kWh/ m². The sun energy is a driving force, the intensity depends on where you are on Earth.

Maybe the universe in which we exist is democratic, because the laws of nature are for everyone and everything, even e.g. a cold stone deep down in the sea.

Possible links related to the sun, 3 in english, 3 in german, for instance:

- https://en.wikipedia.org/wiki/Solar_energy

- https://www.solarpowereurope.org/about/solar-facts/the-basics-of-solar-energy

- https://www.sciencedirect.com/journal/solar-energy

- https://de.wikipedia.org/wiki/Sonnenenergie

- https://www.planet-wissen.de/technik/energie/erneuerbare_energien/sonnenenergie-100.html

- https://sonnenenergie.de/

last visit: 23. December 2025.

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Challenge Climate Change

The Sun is a medium size star.

Without her and the solar system we would not exist, it all belongs together.