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15 Cards in this Set

  • Front
  • Back
A rainbow is a example of...
continuous spectra
The comparative brightness of a star observed if the stars were at the same distance is called...
Abolute Magnitude
The type of electromagnetic energy used to 'see' the center of our galaxy is...
RADIO WAVES
The camparative brightness of a star as seen by the observer is called
Apparent Magnitude
The lightgathering capacity of a telescope depends on...
the size of the objective lens
Name two things that relate to the true brightness of a star...
temperature
size
The type of electromagnetic energy that would keep food warm is...
infrared rays
Forms of electromagnetic energy are differnt beucase they have differnt...
wavelengths
The further away a star is, the _______ the parallax will be
lesser
White light can be broken into a band of colors called the
spectrum or
spectra
The largest single mirrar telescope is _______ inches in diameter
200
A telescope that uses a convex lens is called a _________ telescope
refracting
The Big Dipper can be used to find the...
north star
The group of galaxies to which we belong is called the...
local group
A ________ is a very distant and a powerful source of radio waves
quasars