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Star Betelgeuse - A red supergiant in the constellation Orion

One fascinating star is Betelgeuse, a red supergiant located in the constellation Orion. Here are some intriguing facts about it: 1. Size and Volume: Betelgeuse is immense—if placed at the center of our solar system, it would extend past the orbit of Mars. 2. Variability: It is a pulsating variable star, meaning its brightness changes over time; it has been observed to vary in brightness over several months. 3. Life Cycle: Betelgeuse is nearing the end of its life cycle and is expected to explode as a supernova within the next million years, a relatively short time in astrophysical terms. 4. Distance: It is located approximately 640 light-years away from Earth. 5. Cultural Significance: Betelgeuse has been significant in many cultures and is commonly referred to as the “Shoulder of the Hunter” in the constellation Orion. 6. Color Indicator: Its reddish hue signifies a cooler surface temperature compared to other stars, which gives it a distinctive appearance. Betelgeuse con...

Plasma jet deceleration could be caused by the interaction with the stars

Manel Perucho, professor of the Department of Astronomy and Astrophysics at the University of Valencia has proposed an explanation for the origin of the deceleration of plasma jets (loss of speed along the matter and energy channels emanating from the central regions of an active galaxy), a subject that has been debated in recent decades.

from Astronomy News - Space News, Exploration News, Earth Science News, Earth Science https://ift.tt/2vsvV63

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