When gazing at the sky on a clear night, there are countless flickering lights above our heads, each representing a star, a galaxy, or a cluster of galaxies separated from us by mind-bogglingly vast distances.
Despite this forever-out-of-reach immenseness of the Universe, we are still able to get our hands on a wealth of data about a wide variety of properties of these astronomical objects. The main messenger of all this information is starlight itself.
In my latest article "Messages From Above", I explore how the chemical composition, the surface temperature, and both the relative and rotational motion of stars can be retrieved from the light they emit.
Have a great time reading!
Olivier
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Link to article: https://acircleisround.com/2021/09/19/messages-from-above/
Despite this forever-out-of-reach immenseness of the Universe, we are still able to get our hands on a wealth of data about a wide variety of properties of these astronomical objects. The main messenger of all this information is starlight itself.
In my latest article "Messages From Above", I explore how the chemical composition, the surface temperature, and both the relative and rotational motion of stars can be retrieved from the light they emit.
Have a great time reading!
Olivier
---
Link to article: https://acircleisround.com/2021/09/19/messages-from-above/
