NASA Astronomy Picture of the Day 7 April 2023: Constellation Orion’s brightest star Rigel
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The most commonly known celestial bodies are stars, and they serve as the essential components of galaxies. But how many of these shining objects are there? According to studies conducted, as many as 200 billion trillion stars illuminate our universe. Our Milky Way Galaxy has at least 100 billion stars alone, and there are over 100 billion galaxies in the universe. Sometimes, stars group together to form a particular shape in the sky which resembles objects on Earth. Known as constellations, they are named after objects, animals and people, as per NASA.NASA Astronomy Picture of the Day today, is a snapshot of Rigel, a supergiant star which forms the left foot of the constellation of Orion. Rigel is one of the 10 brightest stars in Earth's sky and shines blue-white, according to N...