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"Poem for a Birthday" is a poem by American poet Sylvia Plath, dated 7 November, 1959 and first appearing in the collection The Colossus and Other Poems published by Heinemann in 1960, by Alfred A. Knopf in 1962, and by Faber & Faber in 1976.
Jupiter is the only planet whose barycentre with the Sun lies outside the volume of the Sun, though by 7% of the Sun's radius. [ 130 ] [ 131 ] The average distance between Jupiter and the Sun is 778 million km (5.20 AU) and it completes an orbit every 11.86 years.
On February 8, 1992, the Ulysses solar probe flew past Jupiter's north pole at a distance of 451,000 km. [32] This swing-by maneuver was required for Ulysses to attain a very high-inclination orbit around the Sun, increasing its inclination to the ecliptic to 80.2 degrees. [33]
By timing the eclipses of Jupiter's moon Io, Rømer estimated that light would take about 22 minutes to travel a distance equal to the diameter of Earth's orbit around the Sun. [1] Using modern orbits, this would imply a speed of light of 226,663 kilometres per second, [2] 24.4% lower than the true value of 299,792 km/s. [3]
Jupiter might have shaped the Solar System on its grand tack. In planetary astronomy, the grand tack hypothesis proposes that Jupiter formed at a distance of 3.5 AU from the Sun, then migrated inward to 1.5 AU, before reversing course due to capturing Saturn in an orbital resonance, eventually halting near its current orbit at 5.2 AU.
A heliocentric orbit (also called circumsolar orbit) is an orbit around the barycenter of the Solar System, which is usually located within or very near the surface of the Sun. All planets , comets , and asteroids in the Solar System, and the Sun itself are in such orbits, as are many artificial probes and pieces of debris .
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The Sun's position on a person's birthday therefore determines what is usually called their "sun" sign. However, the sun sign allotment varies between Western (sign change around 22-23 of every month) and Hindu astrology (sign change around 14-15 of every month) due to the different systems of planetary calculations, following the tropical and ...