System - Milky Way Galaxy - Local group - Local supercluster - Universe Where is the Sun in the Milky Way? -The sun is located in one of the Milky Way’s outer arms‚ about 25‚000 light years from the galactic center. - Also in the Orion Arim‚ more than half way out of the galaxy 2. How many galaxies are in our local group? - There are about 40 galaxies in our local group. Are all the galaxies in our local group travelling away from each other? - Yes‚ all galaxies in our local group are
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stars; often called the Sail‚ however it contains 11 stars in total. An interesting fact about Corvus‚ is that it is home to the Antennae Galaxies. These galaxies are currently colliding with one another‚ forming a heart with two long tails. These two give muggle scientists a possible idea of what will happen to our own galaxy when it some day collides with Andromeda. According to
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that we detect several every year. D) All white-dwarf supernovae have similar light curves‚ which makes them easy to distinguish from massive-star supernovae. E) White-dwarf supernovae are so bright that they can be detected even in very distant galaxies. 50) What do we mean by the singularity of a black hole? A) It is the center of the black hole‚ a place of infinite density where the known laws of physics cannot describe the conditions. B) An object can become a black hole only once‚ and a black
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CHRISTIAN HUYGENS Huygens was a Dutch scientist. He lived from 1629-1695. He proposed the earliest theory about the nature of light‚ a phenomena that puzzled scientists for hundreds of years. His improvements on the telescope allowed him to make the first observations of Saturn’s rings and to discover its moon‚ Titan. CARL SAGAN Sagan was an American astronomer. He lived from 1934-1996. He may not have been a great scientist in comparison to others‚ but he is one of the most
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future‚ our solar system will not in fact be destroyed by our sun but from the collision of the two galaxies. The life expectancy on earth was supposedly five billion years‚ but this now is factored in which makes it four billion years‚ unless a nearby supernova occurs beforehand. Presuming humanity is still around in this time‚ people will be able to look into the sky and be able to observe another galaxy with just the naked eye. An experience I would wish to be part
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Greek Mythology in Astronomy The creatures and deities in Greek mythology are said to have connection with the astronomy and the star constellations. In this fragment of Hesiod’s poem “Nymphs like the Graces‚ Phaesyle and Coronis and rich-crowned Cleeia and lovely Phaeo and long-robed Eudora‚ whom the tribes of men upon the earth call Hyades.” (Hesiod‚ Homeric Hymns‚ Epic Cycle‚ Homerica. 1922) titled Astronomy‚ he mentioned and catalogued many of the constellations based on creatures and gods
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There are two ways stimuli is processed‚ sensory and perception. Sensory processing is what is known as a bottom-up processing. The reason for this is because said information processed is of a lower level; it is not as complex. The sensory organ (eyes) reacts to the environment by being sensitive to light. Light passes through the cornea and to make sure that the iris is not damaged due to its sensitivity to light‚ the brain using two bands of muscles in the iris control the amount of light that
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Big Bang Theory Fifteen billion years ago‚ give or take five billion years‚ the entirety of our universe was compressed into the confines of an atomic nucleus. Known as a singularity‚ this is the moment before creation when space and time did not exist. According to the prevailing cosmological models that explain our universe‚ an ineffable explosion‚ trillions of degrees in temperature on any measurement scale‚ that was infinitely dense‚ created not on fundamental subatomic particles and thus
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Studies • Theoretical • Observational – Field Observation Aspects – Required theoretical Aspects Field Observation Aspects • What we are Looking for ? – – – – – – – – Constellations Nakshtras Sunsigns Planets Notable Stars Meteor Shower Galaxies‚ Dwarf Galaxies Messier Objects‚ Nebulae‚ Star Clusters etc. Field Observation Aspects • What are the references ? – Horizon – Directions – Pole Star – Some known objects (constelln) – Planetary Position • Aids / Accessories – Star Maps – Software
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PHYSICAL SCIENCE physical change-changes affecting the form of a chemical substance‚Physical changes are used to separate mixtures into their component compounds Example:breaking glass Chemical changes- when a substance combines with another to form a new substance ‚called chemical synthesis. Example: burning wood Law of Conservation of Mass-The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations
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