largest moons in the Solar System. Europa was discovered in 1610 by Galileo Galilei[1]and possibly independently by Simon Marius around the same time. Progressively more in-depth observation of Europa has occurred over the centuries by Earth-bound telescopes‚ and by space probe flybys starting in the 1970s. Slightly smaller than Earth’s Moon‚ Europa is primarily made of silicate rock and probably has an iron core. It has a tenuous atmosphere composed primarily ofoxygen. Its surface is composed of water
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Cosmos – an alternative name for the universe Meridian – a half circle extending from your horizon (altitude 0) due south through your zenith to your horizon due north. Zenith – the point directly overhead‚ which has an altitude of 90 degrees. Latitude –The angular north-south distance between Earth’s equator and a location on Earth’s surface. Longitude – The angular east-west distance between the prime meridian (which passes through Greenwich) and a location on Earth’s surface. Speed – The
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Nebula is an interstellar cloud of dust‚ hydrogen‚ helium and other ionised gasses. The discovery of nebula goes back to the early 1600s. Nicolas-Claude Fabri de Peiresc discovered the Orion Nebula in 1610 using a refracting telescope. Nicolas-Claude Fabri de Peiresc used this telescope to observe the skies‚ for example‚ it was used to observe Jupiter’s moons as well as other aspects of space‚ including nebulae. The discovery of the Orion nebula was revolutionary. While it was Nicolas-Claude Fabri
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1.1 If the Sun should suddenly explode (it can’t) how long would it take for us to notice the event? * According to scientists we have at least 5-6 million years before the sun would ever die out or explode. However if a phenominon like that were to occur there are diffent theories to what might happen. It would take light from the explosion eight minutes to travel the 93 million miles from the sun to the earth. However‚ Newton’s Law of Gravity claims that Earth would suffer an immediate departature
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compartments that he named cells. Hooke was the first person to acknowledge cells‚ and this was when the cell theory began. In 1758 a spectacle manufacturer John Dollard‚ patented an almost completely achromatic lens that made colour-free refracting telescopes possible. Later on in 1821 Giovan Battista Amici attempted to increase the resolution of the microscope‚ and invented the oil immersion techniques that brought microscopes to their greatest resolution‚ allowing far more detailed scientific
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LESSON ONE: Speed of light: C= 3 x 10^8 m/s‚ C=3x10^5 km/s Light year= dist= speed x time Earth rotates 360 deg every SIDEREAL DAY 1 Sidereal day= 24 sidereal hrs= 23:56 solar hours Earth revolves 360 around the sun ever 365.24 days= tropical year Earth’s rotation axis precesses every 26‚000 yrs Moon revolves 360 deg ever 27.3 days= Sidereal mon Moon’s cyc repeats every 29.5 days= Syndonic mon Saros cycle: one eclipse yr is only 346 days. 19 eclipse years= 223 syndonic months. LESSON ONE
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Earth’s atmosphere‚ especially if pollution is present. Light pollution may be caused by light from human activity. If the background sky is less dark the stars stand out less and so are harder to see. Telescopes A refracting telescope uses lenses to produce a magnified image A reflecting telescope includes a large mirror to produce a magnified image It is much easier and cheaper to produce a large
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Astronomy Study Guide 1. Know and be able to list the differences between terrestrial and jovian planets. a. Terrestrial Planets i. Mercury ii. Venus iii. Earth iv. Mars b. Characteristics of Terrestrial Planets v. Small vi. Rocky vii. Very close to the Sun viii. Have few moons ix. Have no rings c. Jovian Planets x. Jupiter xi. Saturn xii. Uranus
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Galileo Galilei Group #3 Section: ME 333-A Dr. Bednarz Justin Weaver - Geometric Military Compass Alec Brown - Pendulum Clock Hamad Alkandari - Telescope Abdulmajeed Almutairi - Thermoscope Galileo Galilei was an Italian physicist‚ mathematician‚ astronomer‚ and philosopher. Born on February 15‚ 1564‚ Galileo was most known for his feats in astronomy and in advancing the scientific revolution of the 16th century. He was a big supporter of Copernican theory which states the sun is the center
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On December 27th‚ 1517‚ Katharina Guldenmann gave birth to Johannes Kepler in the town of Weil der Stadt‚ what is now present day Germany. His mother was an herbalist who aided her father with the inn. When Johnnes was around five years of age‚ Heinrich Kepler‚ Johannes’ father‚ was killed fighting in Holland. Young Johannes was prone to infections and sickness that he was left with crippled hands and his eyesight was impaired by smallpox. Guests at Kepler’s grandfather’s inn were astonished at
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