As a little boy, I watched the starry sky with delight, and wanted to know all about the celestial bodies in the sky. Of course, the Moon was the first object that caught my attention. After the planet, my interest expanded into deep space. The first galaxy I found out about was Andromeda (M31). It is located in the constellation – Andromeda, and it is the closest galaxy to the Milky Way. When we look at the constellation, people from Earth see it in the form we see now.
Distances of stars
However, the constellation seen from the side – shows a completely different star arrangement. When we look at constellation with the naked eye we notice a few stars brighter than 4 magnitudes. Globally, the average distance of the main stars we see is approximately 249 light-years. The farthest main star is at a distance of 599 light-years, and the nearest at only 97 light-years.
The constellation Andromeda covers 720 square degrees in the sky. Therefore, Andromeda is the 19th largest constellation in the starry sky. The constellation contains several bright and famous stars. The brightest star is Alpheratz, and the red giant Mirach shines almost equally Alpheratz. The third brightest star is the orange giant Almach, and Nembus is the next brightest star in the constellation. In the northern hemisphere, you can see constellation from July to February. Unfortunately, in the southern hemisphere you can see Andromeda low in sight. Interestingly, Andromeda is approaching our Milky Way galaxy. However, this should not worry you. The collision of Andromeda and the Milky Way will happen in 4 billion years.
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