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This educational overview explores key astronomical terms and instruments, focusing on the spectrometer, which scientists use to analyze stellar light. The spectrometer’s function of splitting light into a spectrum reveals vital information about celestial bodies like the Sun. Additionally, it delves into the concept of equinoxes, defining their occurrence in March and September where day and night are of equal length. The text also introduces asteroids, the meanings of corona, penumbra, and umbra, enriching your understanding of the universe.
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ScienceVocabulary By; Rozy Leenarts
Spectrometer A spectrometer is an instrument usedbyscientisttostudy the Sun andother stars. This instrument splits the light given off by a star into a band of colorslike a rainbow.
Equinox An equinox is the time when the sun crosses the plane of the earth's equator, making nightandday of approximatelyequallengthall over the earthandoccurringaboutMarch 21 (vernal equinox or spring equinox) and September 22 (autumnal equinox)
Asteroid • The definition of anasteroid is a rockymassthatorbits the sun.
Corona • a ring of colored light seenaround a luminous body, as the sun or moon, formedby the diffraction of light causedby mist, dust, etc.
Penumbra/Umbra Penumbra Umbra The definition of a umbra is the shadow of Earth whileaneclipse. • The definition of a penumbra is the lighted area around the shadow of a planet or moonduringaneclipse.
