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What do scientists study with telescopes?
The galaxy. Depends what you mean. They could be studying the stars movement or the distance of the sun etc. MiniGenius™
What measurements do scientist use to measure stars?
Hi. It is a pleasure to help. If you mean the distance from the earth to the stars, astronomers use a technique called parallax which is a way to infer the distance to a star based on triangulation. Astronomers use a unit called the light-year, which is the distance travelled by the light in one year. Since light travels at a speed of 300,000 km/s, in one year light leaves behind a distance of 9.4605284 × 1015 meters. Some stars are only a few light- years away. Others are very far away, in the limits of the observable universe. If the astronomer wants to measure the distance to a very far away star, then parallax is no longer useful. Other techniques and properties are employed such as the Cepheids, which are a very particular class of stars in which the period of variation in their brightness is related to their distances. So by measuring the period, astronomers are able to infer the distance.Measuring distances to stars and to distant galaxies is one of the central problems in Astronomy. It is VERY important. Several research efforts are devoted to measuring distances. In fact, in the 1920's E. Hubble first measured the distance to other galaxies using cepheids. The Hubble Sapce Telescope still measures distances to distant galaxies using a variety of observational techniques.If you mean the measurement of the radius of a star, astronomers do that by knowing the details of the cameras used to photograph the star and the known distance to it. Sometimes studying the properties of the light emitted by stars it is possible to infer its radius based on the theory of stellar evolution.Prof. João Rodrigo LeãoRio Grande Federal University - BRAZIL
How are population II stars different than the Sun a population I star?
Population II stars are lower in "metals" than population I stars. By metals, astronomers mean anything other than hydrogen and helium.
What are names stars from s word?
What you mean by "What are names stars from s word?" ?
What is a stellar unit?
A stellar unit refers to a unit of distance used in astronomy to measure the distance between stars. It is typically equivalent to the mean distance between stars within a galaxy, which can vary depending on the galaxy being observed.
What is it called when astronomers estimate the distance from Earth using the fact that nearby stars shift in position as observed from Earth?
That is called parallax and it happens when a nearby star appears to move against the background as the Earth moves round the Sun. The baseline is the mean radius of the Earth's orbit (not the diameter) and a star which has a parallax of 1 arc-second would be at a distance of 1 parsec. In practice the nearest stars have a parallax of about 0.7 seconds so are at a distance of 1.4 parsecs or 4 light-years. Parallaxes are always small and require sensitive instruments to measure. The lack of parallax was formerly used as a proof that the Earth must be fixed, and it took until 1838 for Bessel to measure the first stellar parallax. After that people began to realise that the stars are much further away than they had thought.
What does the Greek word planetes mean in English?
It means "wandering" (as applied to "stars").
What does it mean that the star is located in Cygnus?
When a star is said to be located in Cygnus, it means that it falls within the boundaries of the Cygnus constellation as seen from Earth. Constellations help astronomers locate and identify stars in the night sky based on their specific grouping or arrangement of stars.
What does a blue star in space mean?
A blue star in space typically indicates a hot and young star. Blue stars are often massive and have high temperatures, causing them to emit a blue light. They are significant in helping astronomers understand stellar evolution and the lifecycle of stars.
How faraway is earth from the sun?
The Earth is about 93,000,000 miles away from the Sun. To be exact, it is 92,955,807.27 miles away. An AU, or Astronomical Unit, is used by astronomers to represent the mean distance from the Earth to the Sun.
What is the meaning of the constellition?
A constellation is a group of stars that form a recognizable pattern in the sky. They have been named and identified by different cultures throughout history to help navigate the night sky and tell stories. Astronomers use constellations as a way to organize and locate stars in the sky.
Who is astronomies?
No clue. Do you mean astronomers? They are scientists working in astronomy.
