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What are the four variables astromeners use to classify stars?
The four variables astronomers use to classify stars are temperature, luminosity, size or radius, and mass. By analyzing these properties, astronomers can determine a star's position on the Hertzsprung-Russell diagram and classify it into different spectral types and stages of stellar evolution.
What scientist studies the function of the sun?
Astronomers study celestial bodies, helio astronomers specifically study suns.
How do you determine the Milky Way's mass outside the Sun's orbit?
Scientists determine the Milky Way's mass outside the Sun's orbit by observing the motions of stars and gas in the galaxy and using gravitational models to calculate the total mass that is needed to hold these objects in their orbits. This method allows for estimating the mass of the Milky Way's dark matter halo, which makes up the majority of its mass.
What information can be derived from the color of a star?
The color of a star can provide information about its temperature and age. Hotter stars tend to appear blue while cooler stars appear redder. By studying the color of a star, astronomers can determine its surface temperature and stage in its life cycle.
Determine the mass of the Sun using the known value for the period of the Earth and its distance from the Sun?
The mass of the Sun can be determined using Kepler's Third Law of Planetary Motion, which relates the period of a planet's orbit to its distance from the Sun. By knowing the period of Earth's orbit (1 year) and its average distance from the Sun (1 astronomical unit), we can calculate the Sun's mass to be approximately 1.989 x 10^30 kg.
How can astronomers determine the mass of the sun and what methods do they use to make this calculation accurately?
Astronomers determine the mass of the sun by observing the orbits of planets and other celestial bodies around it. They use Newton's law of universal gravitation and Kepler's laws of planetary motion to calculate the mass of the sun accurately. By measuring the orbital velocities and distances of objects in the solar system, astronomers can infer the mass of the sun through mathematical calculations.
Why do scientist developed the solar Mass and solar radius?
In order to conveniently compare the distances from the various planets, astronomers devised a measure called the "astronomical unit". The Earth is one AU from the Sun. In order to conveniently compare the sizes of other stars to our Sun, astronomers use a "solar mass" as the mass of the Sun. and a "solar radius" as the radius of our Sun. This helps to make the comparisons more obvious to non-astronomers.
What is high mass star?
It's not got an exact definition, but astronomers usually mean a star of about 8 times the mass of the Sun or higher.
How can you tell how far away the sun is?
Astronomers use complex calculations to determine celestial bodies' distance.They've stated that the sun is 150 million kilometers far away from the Earth.
If Astronomers observe a typical star using a telescope and a spectrometer they will be able to determine what?
Astronomers can determine the star's temperature, chemical composition, mass, luminosity, and age by analyzing its spectrum. By studying the absorption and emission lines in the spectrum, astronomers can also infer the star's motion, magnetic fields, and if it has any companions such as planets or other stars.
How long do astronomers estimate the sun will last before it begins to die?
Astronomers think the sun will die in 2012
What method do astronomers use to determine the distance to a relatively close star like Sirius?
Astronomers use the method of parallax to determine the distance to relatively close stars like Sirius. By measuring the apparent shift in position of the star as the Earth moves around the Sun, astronomers can calculate the star's distance based on trigonometry.
What is used when astronomers measure the distance from the sun to the earth?
Parallax is the method that astronomers use to measure the distance from the sun to the earth.
Have astronomers discovered any black holes outside of your galaxy?
Yes. In fact, it seems that most galaxies have a gigantic black hole (with a mass of millions, or even billions, of times the mass of our Sun) in their center.
How to calculate the mass of the sun?
To calculate the mass of the sun, scientists use the gravitational pull it exerts on other objects, like planets. By observing the orbits of planets around the sun and applying Newton's law of universal gravitation, they can determine the sun's mass. This method is based on the relationship between the mass of an object and the gravitational force it generates.
Did astronomers believe that the sun was part of earth?
No.
How long have astronomers been trying to find out what the sun orbits?
For two or three hundred years, astronomers have had a fair idea the the Sun is not the center of the Universe.
