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Musica universalis—which had existed as a metaphysical concept since the time of the Greeks—was often taught in quadrivium, [8] and this intriguing connection between music and astronomy stimulated the imagination of Johannes Kepler as he devoted much of his time after publishing the Mysterium Cosmographicum (Mystery of the Cosmos), looking over tables and trying to fit the data to what he ...
Bellatrix is a massive star with about 7.7 times the mass and 5.8 times the radius of the Sun. [9] It has an estimated age of approximately 25 million years [12] —old enough for a star of this mass to consume the hydrogen at its core and begin to evolve away from the main sequence into a giant star. [26]
Today the term planet is used considerably differently, with a planet being defined as a natural satellite directly orbiting the Sun (or other stars) and having cleared its own orbit. Therefore, only five of the seven classical planets remain recognized as planets, alongside Earth , Uranus , and Neptune .
Among the five main bright stars, Delta, and probably Alpha and Beta, are likely co-moving B-type members of the Scorpius–Centaurus association, the nearest OB association to the Sun. [ 22 ] [ 23 ] They are among the highest-mass stellar members of the Lower Centaurus–Crux subgroup of the association, with ages of roughly 10 to 20 million ...
He understates the speed at which the Sun orbits the "galactic central point" by an order of magnitude – the actual approximate average speed is 12,336,000 miles a day or 514,000 mph, as opposed to the speeds of "1 million miles a day" and "40,000 miles an hour" mentioned in the song (the latter was rendered in later performances as "400,000 ...
Closest star to the Sun with exactly six [29] exoplanets, and closest K-type main sequence star to the Sun with a multiplanetary system. One of the oldest stars with a multiplanetary system, although it is still more metal-rich than the Sun. None of the known planets is in the habitable zone. [30] 61 Virginis: Virgo: 13 h 18 m 24.31 s: −18 ...
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The Planets, Op. 32, is a seven-movement orchestral suite by the English composer Gustav Holst, written between 1914 and 1917. In the last movement the orchestra is joined by a wordless female chorus. Each movement of the suite is named after a planet of the Solar System and its supposed astrological character.