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17 Cards in this Set

  • Front
  • Back
temperature scale used in astronomy
KELVIN
total amount of energy given off
LUMINOSITY
brightness based on a comparison at 10 pc
ABSOLUTE BRIGHTNESS
brightness based on a comparison as viewed from Earth
APPARENT BRIGHTNESS
states that as distance from a luminous body increases, the same amount of light is spread out over more area
INVERSE SQUARE LAW
the magnitude of a very bright star
LARGE NEGATIVE NUMBER
the magnitude of a very dim star
LARGE POSITIVE NUMBER
the object with the greatest apparent brightness
SUN
color of a cool star
RED
color of a hot star
BLUE
device used to detect visible and invisible light
CCD
unit of brightness used with a CCD
COUNTS
unit of measurement for luminosity
WATTS
a square on an image with the same color and brightness throughout
PIXEL
filters used to determine brightness or magnitude
IR, R, G, B, and UV
image proccessing technique that makes a dark image brighter
LOG SCALING
image processing technique that can be use to see different portions of an image
COLOR PALETTE