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42 Cards in this Set

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  • Back
a staitionary, pole-like device used to determine the position and motion of the sun by the shadow it casts
gnomon
the first type of telescope invented
refractor telescope
the ability to bring out details in an image
resolution
a problem with simple refractor telescopes
chromatic aberration
uses both lenses and mirrors to gather light
composite telescope
detects wavelengths other than visible light
radio telescope
also known as celestial latitude
declination
the measure of the brightness of a star
magnitude
a star's real movement across the sky (perpendicular to the line of sight)
proper motion
star movement directly toward or away from the observer (parallel to the line of sight)
radial motion
a star that sometimes increases many magnitudes in brilliance for a period of time, then returns to its normal brightness
nova
a spinning neutron star that gives out stron, rapidly changing radio signals
pulsar
the galaxy that contains the earth's sun
Milky Way
a large mass of dust and gases in space
nebula
a staitionary, pole-like device used to determine the position and motion of the sun by the shadow it casts
gnomon
the first type of telescope invented
refractor telescope
the ability to bring out details in an image
resolution
a problem with simple refractor telescopes
chromatic aberration
uses both lenses and mirrors to gather light
composite telescope
detects wavelengths other than visible light
radio telescope
also known as celestial latitude
declination
the measure of the brightness of a star
magnitude
a star's real movement across the sky (perpendicular to the line of sight)
proper motion
star movement directly toward or away from the observer (parallel to the line of sight)
radial motion
a star that sometimes increases many magnitudes in brilliance for a period of time, then returns to its normal brightness
nova
a spinning neutron star that gives out stron, rapidly changing radio signals
pulsar
the galaxy that contains the earth's sun
Milky Way
a large mass of dust and gases in space
nebula
a staitionary, pole-like device used to determine the position and motion of the sun by the shadow it casts
gnomon
the first type of telescope invented
refractor telescope
the ability to bring out details in an image
resolution
a problem with simple refractor telescopes
chromatic aberration
uses both lenses and mirrors to gather light
composite telescope
detects wavelengths other than visible light
radio telescope
also known as celestial latitude
declination
the measure of the brightness of a star
magnitude
a star's real movement across the sky (perpendicular to the line of sight)
proper motion
star movement directly toward or away from the observer (parallel to the line of sight)
radial motion
a star that sometimes increases many magnitudes in brilliance for a period of time, then returns to its normal brightness
nova
a spinning neutron star that gives out stron, rapidly changing radio signals
pulsar
the galaxy that contains the earth's sun
Milky Way
a large mass of dust and gases in space
nebula