Star Power
The most common element in a star.
What is hydrogen?
The motion visible to the unaided eye from Earth.
What is apparent motion?
The longest stage in the life of a star.
What is "Main Sequence"?
A collection of stars, dust and gas bound together by gravity.
What is a galaxy?
The number of accepted constellations.
What is 88?
The hottest star's color.
What is blue?
Stars that are always visible in the night sky that appear to move in a circle.
What are circumpolar stars?
What stars larger than the sun become towards the end of their life.
What are supergiants?
The type of galaxy represented by the Milky Way.
What is a spiral galaxy?
Pairs of stars that revolve around each other.
What are Binary Stars?
The size of most stars visible from Earth.
What is medium-sized?
An observed change in the frequency of a wave when the source or observer is moving.
What is the Doppler effect?
A large cloud of gas and dust in interstellar space.
What is a nebula?
The collective name for the Milky Way and the galaxies closest to it.
What is the Local Group?
Collapsed nebulae that form groups of hundreds or thousands of stars.
What are clusters?
The combination of light atomic nuclei to form heavier atomic nuclei.
What is nuclear fusion?
Stars moving away from Earth are ________ shifted in color.
What is red?
A star that suddenly becomes brighter; sometimes more than once.
What is a nova?
What astronomers measure using Cepheid variables.
What is distance?
The constellation in the Southern Hemisphere that can help travelers find south.
What is Cruz (Southern Cross)?
The approximate average surface area of the Sun.
What is about 5,500oC?
An apparent shift in the position of an object when viewed from different locations.
What is parallax?
The two most common "end of life" outcomes for HIGH mass stars.
What are neutron stars & black holes?
The two closest galaxies to the Milky Way.
What are the Large & Small Magellanic Clouds?
The estimated number of sun-like stars that are part of multiple-star systems.
What is more than half?