Atria (stars.astro.illinois.edu)ATRIA (Alpha Trianguli Australis). Among the easiest constellations to invent are simple triangles. There are two of them, one north (Triangulum) and one far south (Triangulum Australe). Of the two, the latter is the larger and brighter, its Alpha star (from which we get the modern proper name, “Atria”) a nice bright second magnitude (1.92), ranking 41st.
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Agatha Christie (Wikipedia)Dame Agatha Mary Clarissa Christie, Lady Mallowan, DBE (née Miller; 15 September 1890 – 12 January 1976) was an English writer known for her 66 detective novels and 14 short story collections, particularly those revolving around fictional detectives Hercule Poirot and Miss Marple. She also wrote the world’s longest-running play, the murder mystery The Mousetrap, which has been performed in the West End since 1952. A writer during the “Golden Age of Detective Fiction”, Christie has been called the “Queen of Crime”. She also wrote six novels under the pseudonym Mary Westmacott. In 1971, she was made a Dame (DBE) by Queen Elizabeth II for her contributions to literature. Guinness World Records lists Christie as the best-selling fiction writer of all time, her novels having sold more than two billion copies.