The astronomy notes below cover the life cycle of a star and the aftermath of the big bang. The measurement of distance is a major task and problem. Various methods are used to estimate and measure nearby planets, stars and more distant galaxies. The units of measurement and the methods are explained below.
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Explaining the units we use to measure distance in astronomy. These are kilometres, astronomical units, light years and parsecs
Explaining type 1A supernovae, what they are and how they can be used to estimate distance in astronomy
Explaining what the Hubble Constant is and how it can be used to measure distance
Explaining the parallax method for measuring distance
Explaining the Doppler effect and red shift and how they can be used to measure the relative speed of an object.
Explaining what we think has been the development of the Universe since the Big Bang
Explaining some of the main evidence supporting the Big Bang theory of the development of the universe
Explaining the connection between real and apparent distance in astronomy
Explaining how to measure distance with radar
Explaining how we can calculate the age of the universe from Hubble’s constant.
Explaining the life cycle of a massive star much bigger than our sun
Explaining the life cycle of our sun and other similar sized stars