Archaeological evidence suggests that Mesopotamians had a constellation similar to Leo as early as 4000 BC. Leo is one of the oldest constellations in the sky. Leo constellation map by IAU and Sky&Telescope magazine Myth The January Leonids are a minor shower that peaks between January 1 and 7. The Leonids usually peak on November 17-18 every year and have a radiant near the bright star Gamma Leonis. There are two meteor showers associated with the constellation. The proper names of stars that have been officially approved by the International Astronomical Union (IAU) are Adhafera, Algieba, Alterf, Chertan, Denebola, Dingolay, Formosa, Moriah, Rasalas, Regulus, Sagarmatha, Subra, and Zosma. Leo is one of the 15 equatorial constellations. The brightest star in Leo is Regulus, Alpha Leonis, with an apparent magnitude of 1.35. Leo belongs to the Zodiac family of constellations, along with Aries, Taurus, Gemini, Cancer, Virgo, Libra, Scorpius, Sagittarius, Capricornus, Aquarius and Pisces. The three-letter abbreviation, adopted by the International Astronomical Union (IAU) in 1922, is Leo. The genitive form of Leo, used in star names, is Leonis (pronunciation: /liːˈoʊnɪs/). In English, the constellation is known as the Lion. The constellation name Leo is pronounced /ˈliːoʊ/. The neighboring constellations are Cancer, Coma Berenices, Crater, Hydra, Leo Minor, Lynx, Sextans, Ursa Major and Virgo. It is located in the second quadrant of the northern hemisphere (NQ2) and can be seen at latitudes between +90° and -65°. Leo is the 12th largest constellation in size, occupying an area of 947 square degrees. Leo constellation is home to the bright stars Regulus and Denebola, the nearby star Wolf 359, and to a number of famous deep sky objects, among them galaxies Messier 65, Messier 66, Messier 95, Messier 96, Messier 105, and NGC 3628. The constellation was first catalogued by the Greek astronomer Ptolemy in the 2nd century, along with all the other constellations of the zodiac. Leo represents the lion and is usually associated with the Nemean lion in Greek mythology. It is one of the zodiac constellations and one of the largest constellations in the sky. Leo constellation lies in the northern sky.
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