general
the curved path of an object around a point in space
what is orbit
our moon's name
what is Luna
our sun's name
what is Sol
the coolest (temperature wise) color of a star's surface
what is red
space debris made from ice and dust, found in the atmosphere
what is a comet
the 23.5° angle at which earth's axis is inclined
what is axial tilit
the factor that causes us to only see one side of the moon
what is rotation
what kind of star is our sun
what is a yellow dwarf star
the planet that comes after jupiter
what is saturn
the name of a meteor after it lands on earth
what is a meteorite
the spinning of an object on its axis (24 hours for earth)
what is the moon phase that follows new moon
what is waxing crescent
the second layer of the sun from the inside-out with the first layer being the core
what is the radiative zone
the star that comes after a red giant during the star life cycle
what is a white dwarf
space debris which has broken off from an asteroid, and is currently floating in space
what is a meteoroid
the time it takes for an object to go around another object (1 year for Earth)
what is revolution
the rise and fall of sea levels caused by the combined effects of the gravatational forces exerted by the moon and the sun
what are tides
the 2 main elements found in the sun
what are hydrogen and helium
the kind of planet found in the first half of our solar system
what is terrestrial
the color shift when a celestial body is moving away
what is red shift
the total amount of energy a star emits per second (its "true brightness"
what is luminosity
when the moon is approximately in line with Earth and the Sun, and the moon passes directly behind the Earth
what is a lunar eclipse
a reaction in which two or more atomic nuclei combine to form a larger nucleus,currently only possible on the sun due to the energy required
what is nuclear fusion
the kind of galaxy that is inconsistent and not common to look the same
what is irregular
the "ultimate fate of our universe"
what is the big crunch