Doing this work / web I have discovered and learned the following things:
- Many of the objects in the sky that I have analyzed are made of hydrogen, helium, carbon, oxygen, nitrogen, germanium, selenium, and europium.
- You can get your own formulas with excel. As for example, putting on one side the magnitude and on the other the period of many different Cepheids you can get a formula to calculate the magnitude.
- From a graph you can calculate and obtain a lot of information.
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There are some stars that can change their luminosity over time.
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Stars can move, even a very small distance, over time and can return to their place.
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Knowing the radius of the star, the radius of the planet can be calculated.
- Knowing the energy you know that element is.