Astronomy quizlet midterm

  • What are the basics of astronomy?

    countable noun.
    An astronomer is a scientist who studies the stars, planets, and other natural objects in space..

  • What are the basics of astronomy?

    Figure 5: Earth on December 21.
    This is the date of the winter solstice in the Northern Hemisphere.
    Now the North Pole is in darkness for 24 hours and the South Pole is illuminated.
    The Sun is at the zenith for observers on the Tropic of Capricorn and thus is low in the sky for the residents of the Northern Hemisphere..

  • Why is astronomy important?

    The first documented records of systematic astronomical observations date back to the Assyro-Babylonians around 1000 BCE.
    From this cradle of civilisation in Mesopotamia – in the southern part of present-day Iraq – astronomers had built up knowledge of the celestial bodies and recorded their periodic motions..

  • What is special about the June solstice? It's the day on which the Northern Hemisphere receives its most direct sunlight.
Rating 5.0 (1) two identical objects have temperatures of 1000K and 1200K , respectively.
it is observed that one of the objects emits twice as much radiation as the other.,Study with Quizlet and memorize flashcards containing terms like The planet with the lowest average density is, is about 30 times as far from the Sun as our 

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