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The Sun & the Solar Telescope

The Sun & the Solar Telescope

  • 09.06.2021

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The Sun usually appears as an old man with a zigzag-shaped orange-yellow face in drawings. In fact, nothing wrong about depicting the Sun as an old man because he is 4.6 billion years old! How do you draw the Sun? Share your fantastic drawing in the comments!

By the way, what is the actual color of the Sun? What are the jagged edges?

To protect our eyes, we should not attempt to answer by looking directly at the Sun. Besides the previously mentioned solar filters, we can also observe the Sun with a solar telescope. The SolarTelescope system at the HKSpaceMuseum is a "heliostat" specially designed for observing the Sun. The system consists of three solar telescopes equipped with specially-made filters that use white light, Hydrogen-Alpha (with a wavelength of 656.3 nm) and Calcium K (with a wavelength of 393.3 nm) passbands to observe the Sun.

The Sun is the closest star to us, and its surface is constantly changing under the influence of factors such as rotation and magnetic fields so it's different every day! By observing the sun, scientists can understand more about the structure and evolution of stars. If you would like to observe the Sun safely, come and visit the Space Museum exhibition hall, or visit the Museum's website, to watch the real-time image of the solar telescope to see what is special about the solar surface! If you are lucky, you might see sunspots and zigzag-shaped prominence!

Webcast of the Solar Telescope images:
https://hk.space.museum/SolarTelescope/SolarTelescope.html

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