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Vocabulary SG

Flora - Stars, Galaxies & the Universe Vocabulary Study Guide

definitionvocabulary word
a pattern of stars resembling an animal, mythological character or a particular object constellation
a huge group of stars, gas and dust held together by gravity galaxy
the measure of the amount of a star's light that is observed on Earth apparent magnitude
the apparent change in the position of an object when viewed from two different points parallax
theory that universe began as dense matter which expanded from a huge explosion about 15 billion years ago Big Bang Theory
the measure of how much light a star actually radiates into space absolute magnitude
two stars orbiting around one another binary system
the largest and outermost layer of the Sun's atmosphere corona
the distance light travels in one year light-year
a large cloud of gas and dust in space that may be the birthplace of stars nebula
a part of the Sun's surface that is cooler and appears darker than the surrounding area sunspot
the intermediate layer of the Sun's atmosphere chromosphere
On the H-R diagram, the diagonal band on which about 90% of all stars are located main sequence
the innermost layer of the Sun's atmosphere that radiates the light we see photosphere
Created by: sflora
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