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Stars Answers - Science Skool!
Stars Answers - Science Skool!

... 6. How did the elements come to be formed? Nuclear fusion of hydrogen forms helium; heavy elements are formed by the fusion of lighter elements during a supernova 7. Describe how a star forms. Dust and gas is pulled together by gravity 8. What happens to massive stars after the red super giant stage ...
Saraswati River - Ancient Greece
Saraswati River - Ancient Greece

... the 48 ancient constellations which were formalised by Ptolemy (c.AD100 – 178) 3. Occasional phenomena – e.g. eclipses, comets and shooting stars. All ancients (the Greeks included) had a geocentric view of the universe i.e., the assumption that the earth was at the centre of the universe with plane ...
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... ancient constellations which were formalised by Ptolemy (c.AD100 – 178) 3. Occasional phenomena – e.g. eclipses, comets and shooting stars. All ancients (the Greeks included) had a geocentric view of the universe i.e., the assumption that the earth was at the centre of the universe with planets orbi ...
PH109 Exploring the Universe, Test 3, Fall 2001 Please indicate the
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... 29. The most common elemen found in the interstellar medium is a) Hydrogen, b) Helium, c) Carbon, d) ammonia 30. The bubbling of the Sun's surface is seen as a) solar wind, b) solar flares, c) granulation, d) corona 31. All stars with masses equal to or greater than the sun expand to become a) red g ...
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Stars and constellations

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... a Yellow Star in the sky. But not all stars are yellow, most of them are red dwarf stars. • The Biggest stars usually live the youngest, and the smallest Stars live the shortest. • Pure Yellow Stars are difficult to see. ...
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... The stars are distant objects. Their distances vary, but they are all very far away. Excluding our Sun, the nearest star, Proxima Centauri, is more than 4 light years away. As Earth spins on its axis, we, as Earth-bound observers, spin past this background of distant stars. As Earth spins, the stars ...
Astronomy – The Milky Way Galaxy
Astronomy – The Milky Way Galaxy

... 3. Conservation of angular momentum ensures the remaining gas ___________ into a disk. 4. Billions of years later, the star-gas-star cycle supports ongoing _________ ______________ within the disk. The lack of gas in the halo _______________ star formation outside the disk. Facts about Galaxies and ...
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... Before October 6, 1923, astronomers thought the Andromeda Nebula and similar objects were bright pockets of matter inside the Milky Way. On that day astronomer Edwin Hubble noticed, looking at the photograps, a particular type of star inside the Andromeda Nebula. Hubble realized that the star (Ceph ...
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... In this comparison our Sun is down to 1 pixel, a mote of dust with an arrow pointing to it. Jupiter is invisible. Betelgeuse (Alpha Orionis) is a red supergiant. If Betelgeuse replaced our Sun, its surface would lie between the orbit of Mars and Jupiter. Antares (Alpha Scorpii) is a red supergiant 7 ...
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... Black Holes If the mass of the core is more than about 3 solar masses the neutron degeneracy is overwhelmed and the core goes on collapsing. When the core diameter reaches the Schwarzschild radius (9 km for a 3 solar mass remnant) nothing, not even light, can escape. ...
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stars - allenscience

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red shift blue shift

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te acher`s guide te acher`s guide

... Stars asks the following five questions about our Sun and all of its shining counterparts. Space travelers Adi and Woops help viewers clearly answer each question using computer graphics and space footage. What are the signs of the zodiac? The signs of the zodiac are twelve different groups of stars ...
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Stellar kinematics



Stellar kinematics is the study of the movement of stars without needing to understand how they acquired their motion. This differs from stellar dynamics, which takes into account gravitational effects. The motion of a star relative to the Sun can provide useful information about the origin and age of a star, as well as the structure and evolution of the surrounding part of the Milky Way.In astronomy, it is widely accepted that most stars are born within molecular clouds known as stellar nurseries. The stars formed within such a cloud compose open clusters containing dozens to thousands of members. These clusters dissociate over time. Stars that separate themselves from the cluster's core are designated as members of the cluster's stellar association. If the remnant later drifts through the Milky Way as a coherent assemblage, then it is termed a moving group.
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