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asterism    
n. 星群,三星符号

星群,三星符号

asterism
n 1: (mineralogy) a star-shaped figure with six rays that is
seen in some crystal structures under reflected or
transmitted light
2: (astronomy) a cluster of stars (or a small constellation)


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  • Asterism (astronomy) - Wikipedia
    An asterism is an observed pattern or group of stars in the sky Asterisms can be any identified star pattern, and therefore are a more general concept than the 88 formally defined constellations
  • What Are Asterisms? - NASA Science
    The Winter Triangle – This asterism is formed by the bright stars Sirius, Betelgeuse, and Procyon It's also visible during winter in the Northern Hemisphere (in fact, it's part of the Winter Circle)
  • Asterisms – Constellation Guide
    However, the difference between the terms “constellation” and “asterism” remains simple: a constellation is an area of the sky and an asterism is a star pattern
  • Asterism | Definition, Examples, Facts | Britannica
    An asterism can be part of a constellation, such as the Big Dipper, which is in the constellation Ursa Major, and can even span across constellations, such as the Summer Triangle, which is formed by the three bright stars Deneb, Altair, and Vega
  • Asterisms: Definition, facts and examples | Space
    What's the difference between an asterism and constellation? Like constellations, asterisms are stars that join together to trace out pictures of familiar objects in the sky
  • Constellation vs. Asterism: What’s the Difference? - Optics Mag
    An asterism is a pattern of stars loosely present close to each other It doesn’t have a definite boundary and is a relatively modern term Asterisms can be a part of a constellation On the other hand, a constellation is an officially recognized region consisting of stars in a definitive boundary It has roots within ancient Greek mythology
  • Constellations and asterisms: whats the difference?
    Many think of the three stars in Orion’s Belt (Alnitak, Alnilam and Mintaka) as another asterism This definition wraps each constellation around its stars and is particularly useful for identifying far away galaxies and finding our way back to them
  • The great asterism hunt - Astronomy Magazine
    An asterism is an unofficial group of stars recognized by (generally amateur) astronomers or the public They have been in a separate category than constellations since 1928
  • What’s a constellation? What’s an asterism? - EarthSky
    An asterism is an obvious pattern or group of stars with a popular name Is it a constellation or an asterism? A constellation is a pattern of stars in the night sky
  • Beginners Guide Naked-Eye Asterisms
    Easily the most well known asterism in the sky is the Big Dipper What makes the Big Dipper an asterism is that it is actually part of the larger constellation Ursa Majoris Though almost all the popularly recognized asterisms are just part of a constellation, they can span multiple constellations





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