Measuring Space: Brightness and Temperature
Terms
undefined, object
copy deck
- 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