used to discover the first quasars was based on coincidences between a strong radio source and a point-like optical source. Since each radio source was associated with a star it was originally thought that quasars were objects within the galaxy hence the term ’radio stars’. Quasars or quasi-stellar radio source‚ from the method by
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Young Discoverer Series UNIVERSE NICKNAMES OF PLANETS: Mercury – Speedy Messenger. Venus – Morning or Evening Star. Earth – The Blue Planet. Mars – The Red Planet. Jupiter – Jove or the Galilean System. Saturn – The Ringed Planet. Uranus – Father Sky. Neptune – The Windy Planet. Pluto – The Ice Planet. DEFINITIONS: STAR: A huge body made of hot luminous gas that is held together by its own gravity. Compared to other stars‚ our Sun is a star of average size and energy. PLANET: A large
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22648860 OBSERVATIONS AND CHARACTERISTICS OF THE SOMBRERO GALAXY (M104/NGC 4594) DOMINIC J. TAN ABSTRACT The Sombrero Galaxy (M104/NGC 4594) is an unbarred spiral galaxy and a suspected member of the galaxy group within the southern regions of the Virgo cluster. It is a nearby galaxy with a very distinctive appearance making it easy to identify. Despite being easily recognisable‚ it is still not completely understood. The exact process involved in its formation is unclear and it is not
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A galaxy is a massive‚ gravitationally bound system consisting of stars‚ an interstellar medium of gas and dust‚ and dark matter. The name is from the Greek root galaxias [γαλαξίας]‚ meaning "milky‚" a reference to the Milky Way galaxy. Typical galaxies range from dwarfs with as few as ten million (107) stars up to giants with one trillion (1012) stars‚ all orbiting a common center of mass. Galaxies can also contain many multiple star systems‚ star clusters‚ and various interstellar clouds. The Sun
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though perhaps unlikely final conclusion. The Andromeda Strain is a world-famous technological thriller written by the creative genius Michael Crichton‚ first published in 1969. The novel is based on a fictional apocalyptic event following a group of scientists investigating a deadly extraterrestrial microorganism. The Terminal Man is another publication by Michael Crichton‚ first published in 1972 (the novel following the release of the Andromeda strain). The text is of the same genre‚ but in
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that galaxies are moving farther away. This was in our lab (electromagnetic spectrum and the Doppler affect). In this lab Mr. Cousino drove by us in the car and the car horn got quieter as it drove away. This shows us red shift because he is moving away from us and the wavelengths are being compressed together in front of his car and are longer behind his car. This is how all the matter and energy in our universe comes from the big bang. The sun is located within the Milky Way galaxy in the
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MAIN SEQUENCE 5. Although Copernicus’ model of the solar system correctly placed the sun at the center‚ it still provided inaccurate predictions because it maintained that the planets’ orbits were _________. CIRCULAR HTML Editor 6. A spiral galaxy like the Milky Way has three major components: the disk‚ the bulge‚ and the _________. HALO 7. The more massive a white dwarf is‚ the (larger/smaller) _________ its diameter will be. SMALLER 8. The strength of an object’s gravitational pull
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Unit 5 Galaxies and Cosmology By: Briana Polk Miscellaneous Important Key Words and Facts: I. TYPES OF GALAXIES: Spiral Galaxy (S) Spiral Barred Galaxy (SB) Elliptical Galaxy (E) Irregular Galaxy (In order of importance…) 1. Spiral Galaxies: (Edwin Hubble‚ 1936) “The most common type of galaxy that is viewed by observers; It contains twisted collections of stars‚ stellar remnants‚ and a diffuse interstellar medium (ISM) of gas and dust”. Made up of hot young stars Most spiral
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The Andromeda Strain: Day 2‚ Chapters summary Chapter 5: The Early Hours Manchek leaves a message saying it is vital to call Wildfire alert. The five scientists who have been alerted are Jeremy Stone‚ Peter Leavitt‚ Charles Barton‚ Christian Kirke‚ and Mark Hall. Stone is handed a file called PROJECT SUMMARY; SCOOP. He also remembered the conference he attended a few years ago that was about the probability of contact between man and alien life forms. He concluded that the most probable contact
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Properties of Clusters of Galaxies Monday (4/15/2013) Procedure For this experiment‚ a photograph of the Virgo Cluster of Galaxies will be needed to observe. The photograph will be sectioned into specific areas with coordinates like a map. Locate the area and identify the galaxies. Classify the galaxies as elliptical‚ spiral‚ or irregular. An elliptical galaxy will appear solid with not real defined “arms” or spirals coming from the center. An elliptical galaxy can be further classified E0
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