A spectrometer is used to determine the composition of stars, and how fast they are going relative to Earth.
Astroable is not a commonly recognized term in the English language or in any specific field. It does not have a defined meaning or use in astronomy or any other scientific discipline.
Astronomy, from the greek astra, meaning stars.
Terrestrial telescope
An astrolabe is an old instrument used to calculate the position of celestial bodies. Here are some sentences.I found an antique astrolabe in an old store.An astrolabe was used before the sextant was invented.Polish that astrolabe so it doesn't tarnish.
Telescopes are used for observing stars.
telescope
A telescope is an instrument that is highly used.
A instrument used for viewing and observing
Electron microscope.
telescopes
PERISCOPE
An observatory is a location used for observing terrestrial and/or celestial events
At the Age of Exploration they used telescope to observe stars.
A spectrometer is used to determine the composition of stars, and how fast they are going relative to Earth.
That is a telescope
Astroable is not a commonly recognized term in the English language or in any specific field. It does not have a defined meaning or use in astronomy or any other scientific discipline.