An observatory located on the summit of Mount Wilson, 1,742 meters above sea level, in California, USA. It was built in 1904 by its first director, George E. Hale. It has 60-inch (152 cm) and 100-inch (254 cm) reflecting telescopes, two tower telescopes, and a 60-inch infrared telescope. The two large telescopes were the largest in the world for decades, and brought great results in observation and nebula photography. It was just before the 200-inch (508 cm) mirror was completed on Mount Paloma in Southern California that Walter Baade observed the Andromeda Galaxy and doubled the scale of the universe. It is currently headquartered in Pasadena, and together with the Mount Paloma Observatory, it is called the Hale Observatory. Edwin Powell Hubble used these telescopes to observe the redshift of galaxies and discover the expansion of the universe. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
アメリカ合衆国,カリフォルニア州の標高 1742mのウィルソン山頂にある天文台。1904年,初代台長ジョージ・E.ヘールによって建設された。60インチ(152cm)および 100インチ(254cm)の反射望遠鏡と塔望遠鏡 2基を備え,さらに 60インチ赤外線望遠鏡も設置された。2台の大望遠鏡は数十年間世界一を誇り,観測,星雲の写真撮影に大きな成果をもたらした。ウォルター・バーデがアンドロメダ銀河を観測し,宇宙のスケールを 2倍に改めたのは,南カリフォルニアのパロマ山に 200インチ(508cm)鏡が完成する直前のことであった。現在はパサディナに本部があり,パロマ山天文台と合わせてヘール天文台と称される。エドウィン・パウエル・ハッブルはこれらの望遠鏡を使って銀河の赤方偏移を観測し,宇宙膨張を発見した。
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