It is one tool that you can use. It is more for examining light and its properties, than for simple observation of stars, which you would use a telescope or binoculars for. It can be used to specifically examine the light to try and find out more about the stars and what they consist of.
Telescope
Blue stars are hotter than the sun, white ones about the same, and red ones are cooler. If you use a spectroscope the calculations are much more precise.
Some astronomers study how matter behaves using particle accelerators.
No, that is for studying the stars, a doctor would use amicroscope.
The sky. Astronomers use right ascension and declination as coordinates for locating stars, rather than latitude and longitude.
spectroscope
The use of the spectroscope; investigations made with the spectroscope.
telescope,.................................................................................................
Robert Bunsen and Gustav Kirchhoff were the inventors of the spectroscope.
A spectroscope in an instrument for observing a spectrum of light.
"The sky's stars seemed illuminated." The sky's blue.
ITS A TELESCOPE.
To be more precise, you LOOK AT the sky.
Some instruments used in studying stars include telescopes, spectrographs to analyze the light from stars, photometers to measure the brightness of stars, and interferometers to combine light from multiple telescopes for higher resolution imaging. Telescopes can be ground-based or space-based, like the Hubble Space Telescope.
A spectroscope is used to measure properties of light over a specific portion of the electromagnetic spectrum.
Starry.
There was a cluster of stars that the astronomers were studying carefully.