Recorder is a musical instrument. It begins with the letter r.
telescopes
an instrument that tells what stars are made of
A spectrometer is used to determine the composition of stars, and how fast they are going relative to Earth.
String Instrument what king of moron r u?
The "supergiant" stars are the brightest stars on the H-R diagram.
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telescope,spectroscope
telescope
a teliscope
That is a telescope
telescope