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SOLUTIONS ASTROPHYSICS – OPTION D 2015-17
SOLUTIONS ASTROPHYSICS – OPTION D 2015-17

... 2. a) Explain why a star having a mass of 50 times the solar mass would be extected to have a lifetime of many times less than that of the Sun. ...
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Chapter 27.2

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Russell County Schools Non-Traditional Instructional Expectations

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1” “Sky-Notes” of the Open University Astronomy Club. October 2005

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20.1 Notes

... own gravity and rebounds with a shock wave that violently blows the stars outer layers from the core. This huge, bright explosion is called a Type II _________________________. If the core that remains after a supernova has a mass of 1.4 – 3 solar masses it becomes a _______________ star, a very den ...
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Objects Beyond our Solar System

...  We say that stars have a “life” because they evolve and follow a predictable pattern: 1. They are “born” from clouds of dust and gas. 2. They develop 3. They die  Each “life” may take billions of years, something that is very difficult for us to understand. Keep in mind that it would take nearly ...
Lecture 16 - Yet More Evolution of Stars
Lecture 16 - Yet More Evolution of Stars

... • Solar mass star produce elements up to Carbon and Oxygen – these are ejected into planetary nebula and then recycled into new stars and planets • Supernova produce all of the heavier elements – Elements up to Iron can be produced by fusion – Elements heavier than iron are produced by the neutrons ...
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Solution Key

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Puffer-Sweiven is partnering with the Coastal
Puffer-Sweiven is partnering with the Coastal

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Name Date ______ Period _____ Earth Science Chapter 25 Study

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Reminder: Assignments are due back to teachers within 2 school days.

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How Is a Star`s Color Related to Its Temperature?

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L19-Review2
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Word doc - UC-HiPACC - University of California, Santa Cruz
Word doc - UC-HiPACC - University of California, Santa Cruz

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Measuring the Properties of Stars
Measuring the Properties of Stars

... (m + M)P2 = a3 is a useful equation for determining total mass of a binary system when measurements of the separation between the primary and secondary bodies, and the calculation of the period of revolution of the secondary body about the primary body can be made. Actually, this equation can determ ...
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Review Game

... 48) The ________ star clusters are the oldest and richest, over ten billion years old. 49) Energy transport as hot gases rise can occur by large-scale motions of the solar material in regions called: 50) Energy from the core is first outwardly transported by gradual outward diffusion of photons in t ...
Stars and Deep Time
Stars and Deep Time

... to be a brief “Nova” (bright for several weeks or months) ...
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Star of Bethlehem



In Christian tradition, the Star of Bethlehem, also called the Christmas Star, revealed the birth of Jesus to the Biblical Magi, and later led them to Bethlehem. The star appears only in the nativity story of the Gospel of Matthew, where astrologers from the east are inspired by the star to travel to Jerusalem. There they meet King Herod of Judea, and ask where the king of the Jews had been born. Herod, following a verse from the Book of Micah interpreted as a prophecy, directs them to Bethlehem, to the south of Jerusalem. The star leads them to Jesus' home in the town, where they worship him and give him gifts. The wise men are then given a divine warning not to return to Herod so they return home by a different route.Many Christians see the star as a miraculous sign to mark the birth of the Christ (or messiah). Some theologians claimed that the star fulfilled a prophecy, known as the Star Prophecy. Astronomers have made several attempts to link the star to unusual astronomical events, such as a conjunction of Jupiter and Saturn, a comet or a supernova.Many modern scholars do not consider the story to be describing a historical event but a pious fiction created by the author of the Gospel of Matthew.The subject is a favorite at planetarium shows during the Christmas season, although the Biblical account describes Jesus with a broader Greek word, which can mean either ""infant"" or ""child"" (paidon), rather than the more specific word for infant (brephos), possibly implying that some time has passed since the birth. The visit is traditionally celebrated on Epiphany (January 6) in Western Christianity.
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