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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...

White dwarf-main sequence binary identified in the open cluster NGC 752

Using data provided by Gaia satellite, two American astronomers have discovered a white dwarf-main sequence binary in the open cluster NGC 752. It is the first white dwarf found in this cluster. The finding was detailed by researchers in a paper published August 17 on the arXiv pre-print repository.

from Astronomy News - Space News, Exploration News, Earth Science News, Earth Science https://ift.tt/2wt0CEy

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