You use a telescope to observe stars, and sometimes also use a star map.
A spectrometer is used to determine the composition of stars, and how fast they are going relative to Earth.
an instrument used by sailors to determine their location by observing the positions of stars
Astronomy, from the greek astra, meaning stars.
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.
Stars emit radiation across a broad spectrum, including infrared light. However, observing stars in infrared can be challenging due to interference from atmospheric absorption and emission, and the need for specialized instruments to detect faint infrared signals. Additionally, stars emit most of their energy in visible light, which is why traditional optical telescopes are commonly used for observing them.
Telescopes are used for observing stars.
telescope
A instrument used for viewing and observing
A telescope is an instrument that is highly used.
Electron microscope.
telescopes
PERISCOPE
At the Age of Exploration they used telescope to observe stars.
An observatory is a location used for observing terrestrial and/or celestial events
A spectrometer is used to determine the composition of stars, and how fast they are going relative to Earth.
That is a telescope
an instrument used by sailors to determine their location by observing the positions of stars