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Astronomy Vocabulary Test Crossword
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1) is a highly magnetized, rotating neutron star that emits a beam of electromagnetic radiation.
2) In astronomy, luminosity is the total amount of energy emitted by a star, galaxy, or other astronomical object per unit time.
4) describes the formation of our solar system from a nebula cloud made from a collection of dust and gas. It is believed that the sun, planets, moons, and asteroids were formed around the same time around 4.5 billion years ago from a nebula.
7) a unit of astronomical distance equivalent to the distance that light travels in one year
8) a star of relatively small size and low luminosity, including the majority of main sequence stars.
9) The amount of matter in an object
12) is a series of changes in form that an organism undergoes, returning to the starting state
17) of very great size or force; gigantic
20) of, relating to, or determined by the sun.
21) of, determined by, relating to, or resembling the moon
22) is an explosion of a massive supergiant star
Across
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3) A description of how bright a star really is; a characteristic property of a star that does not depend on the star’s distance from Earth
5) the production and discharge of something, especially gas or radiation.
6) a nuclear reaction in which two or more atomic nuclei come close enough to form one or more different atomic nuclei and subatomic particles (neutrons and/or protons).
10) is a location in space-time where the gravitational field of a celestial body becomes infinite in a way that does not depend on the coordinate system.
11) is any decrease in wavelength, with a corresponding increase in frequency, of an electromagnetic wave; the opposite effect is referred to as redshift
13) the displacement of spectral lines toward longer wavelengths (the red end of the spectrum) in radiation from distant galaxies and celestial objects
14) a theory of cosmology in which the expansion of the universe started with a primeval explosion. It is supported by our current understanding of the composition and structure of the universe.
15) relating to, composed of, or involving two things.
16) a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.
18) is the thermal radiation left over from the time of recombination in Big Bang cosmology
19) Pertaining to the sun
23) is an interstellar cloud of dust, hydrogen, helium and other ionized gases
24) is the measure of intrinsic brightness of a celestial object
25) of, relating to, or belonging to a planet or planets.
26) the force that attracts a body toward the center of the earth, or toward any other physical body having mass
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