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| What you percieve from where you are currently standing |
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| An object that is permanently present in the sky |
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| a group of stars visible from Earth that forms a distinctive pattern and has a name, often derived from Greek mythology, linked to its shape. There are 88 constellations and the groupings are historical rather than scientific. |
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| an astronomical object that orbits a star and does not shine with its own light, especially one of those orbiting the Sun in the solar system |
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| The direction on a compass. Measured in degrees. o degrees north, 90, east, 180 south, 270 degrees west |
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| Altitude Azimuth Coordinates |
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| The coordinates that are necessary to accurately locate a star in the sky. A little like coordinates used on a map |
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| instrument used to observe the position and determine the altitude of the Sun or other astronomical object. It does this by measuring the angle at which you are looking at the star |
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| An instrument that tells you what magnetic north is. Magnetic North and North are off by a few degrees |
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| Earth Centered or Geocentric Model |
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| A model in which the Earth is believed to be the center of the universe with the other planets and the sun revolving around it. Established by Aristotle |
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| The model in which the sun is believed to be at the center of the universe. First conceived by Copernicus and supported by various astronomers throughout the ages |
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| A device used to magnify other objects. It does so by using mirrors or lenses |
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| the lens closest to the eye |
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| The lense closer to the object being viewed |
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| The place where one would put their eye when using a telescope |
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| Was an Italian astrononmer famous for making significant improvements to telescopes and by supporting the Heliocentric Model of the Universe |
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| Credited with inventing the telescope |
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| A large telescope also increases the sharpness of the image and the extent to which fine details can be distinguished. It is a measure of the fineness of detail. When magnified, objects will appear fuzzy if the resolving power is too low. A larger diameter objective lens will improve the resolving power. |
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| To alter the course of an energy wave such as with water |
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| To bounce light off of a shiny surface |
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| A general oval shape used to describe planetary orbit |
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| Newton's law of universal gravitation states that every massive particle in the universe attracts every other massive particle with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. |
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| a condition that is not limited to a specific set of values but can vary infinitely within a continuum |
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| an instrument for dispersing light, usually light in the visible range, into a spectrum in order to measure it |
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| Emission Spectrum or Bright Light Spectrum |
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| The emission spectrum of a chemical element or chemical compound is the relative intensity of each frequency of electromagnetic radiation emitted by the element's atoms or the compound's molecules when they are returned to a ground state. Each element's emission spectrum is unique. Therefore, spectroscopy can be used to the identify the elements in matter of unknown composition. Similarly, the emission spectra of molecules can be used in chemical analysis of substances. |
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| The change in frequency or wave of energy depending on whether it is moving towards or away from you. If it moves toward you it would be at a higher frequency. If it is moving away, the frequency will be lower and thw waves will be further apart |
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| A shift on a spectrum. A red shift means it is cooling down or moving further away. Blue shift is when it moves closer or is getting brighter |
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