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Science Universe Vocab Rev2

Across
A graph showing absolute magnitude plotted against the surface temp. for a group of stars
The measure of a star's brightness as seen from earth
Large celestial body that is composed of gas
Distance light travels through space in one year -
Galaxies shaped like pinwheels
The range of all electromagnetic frequencies, including the following types (from lowest to highest frequency): radio waves, microwaves, infrared light, visible light, ultraviolet light, x-rays, and gamma rays.
Group of stars that make a pattern?picture - A group of stars that form a pattern in the sky.
The transfer of energy that travels long distances in the form of electromagnetic waves
Huges groups of relatively cool gases that extend outward from the photosphere thousands of kilometers into the outer atmosphere
Collection of large and small bodies that orbit our central star, the sun - The Sun and its family of orbiting planets, moons, and other objects.
Down
Wavelengths of light
Huge group! Large collection of stars, star clusters, gas and dust that is held together by gravity - Millions or billions of stars held together in a group by their own gravity.
An explosive release of energy that can extend outward as far as the sun's outer atmosphere
The actual measurement of a star's brightness - how bright a star would be if located at a standard distance
Theory that the universe began (moment in time) in a huge explosion 13-14 billion years ago by a dot no larger than an atom
Brightness of a star
Collections of a few thousand stars that formed close together
The process in which two or more low-mass atomic nuclei fuse to form another
The movement of matter that results from differences in density caused by variations in temp. process by which energy is transferred in gases and liquids, occurring when a warmer, less dense area of gas or liquid is pushed up by a cooler, more dense area of the gas or liquid
All space, energy and matter