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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...

V2455 Cyg is a high amplitude Delta Scuti star, new observations suggest

Using the Research Institute for Astronomy and Astrophysics of Maragha (RIAAM) Observatory, Iranian astronomers have performed new photometric observations of the variable star V2455 Cyg. Results of the observational campaign suggest that the studied object is a high-amplitude Delta Scuti star. The finding is reported in a paper published March 17 on the arXiv pre-print server.

from Astronomy News - Space News, Exploration News, Earth Science News, Earth Science https://ift.tt/2UIoz7d

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