Objects of interest include planets, moons, stars, nebulae, galaxies, and comets. Relevant phenomena include supernova explosions, gamma ray bursts, quasars, blazars, pulsars, and cosmic microwave background radiation. More generally, astronomy studies everything that originates outside Earth's atmosphere.
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New Moon It is characterize because its illuminated face is in the oppoosite direction of the Earth. This is why we cant see it often ..In this phase,the moon is passsing betwwen the arth and the sun
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IFirst Quarter It is invisible a week after the new moon. half of te moon is illuminated towards the earth this phase is called crescent because it is the fist one since the phase of the New Moon
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Full moon This happens When te moon gets the light from the sun on its visible face and it looks full In this phase , the earth is located betwwen the sun and the moon
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Last quarter It is produced when the full moon has turned a quarter of a spind and it shows half of its face illuminated .This is because the sun , the Earth and the Moon are located in the right angle
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