Star Crossword

a massive ball of gas in outer space that gives off heat, light, and other forms of radiation
the brightness of a star as it appears from Earth, irrespective of its distance
the brightness that a star would have if it were 32.6 light-years from an observer
a star at the stage in its life cycle when it stops burning hydrogen, begins burning helium, and expands to a large, low-density star
a large cloud of gas and dust in outer space ejected by an aging star near the end of its life cycle
a small, dense star at the end of its life cycle, which generates little or no energy and has contracted to its densest state
a system of nuclear reactions which occur in stars through which the atomic nuclei of all of the chemical elements are formed
a very dense star composed of neutrons held together by gravity
a space object with surface gravity great enough that not even light waves can escape it
plots stars by temperature and absolute magnitude or luminosity.
a reaction where two or more nuclei of atoms combine to form a single nucleus.
two atoms of hydrogen combine together to form an atom of helium
a star burns through its hydrogen fuel
a large star of high luminosity and low surface temperature
helium fusing together
a star that no longer emits light or heat
a form of energy that travels through space and exhibits wave-like behavior
the brightness of a star or the sun