Stars are fascinating for them. Even for an ordinary person who looks up on a clear night, the stars are interesting. If you look closely you will notice things, like the way some stars are brighter than others and some are actually different colours. Most people know the names of some constellations, usually from the signs of zodiac used in Astrology, though they could not identify them in the sky. Some do know how to recognise other constellations. It is not difficult to get to know more of them. If you start looking at stars regularly, over the period of a few months, you will notice how they change positions and you start to see different ones.
All of those things are something an ordinary person can see and do. An astronomer looks at things in a more detailed way, like why they are different levels of brightness and why they are different colours. They will easily be able to identify constellations and many individual stars. Ordinary people may look up and wonder things about the stars, while astronomers try to get the answers to those questions. An ordinary person can enjoy the night sky, while astronomers love to study the stars and the whole range of other things that are up there, like planets, comets, meteors, galaxies, the moon and so much more. For astronomers it can be anything from a simple hobby to a profession. So naturally they like stars.
Distance.
People who study stars are called astronomers. They observe and analyze celestial objects and phenomena, including stars, planets, galaxies, and more, to better understand the universe.
Astronomers determine the surface temperatures of stars by analyzing their spectrum of light. Each star emits a unique spectrum based on its temperature which can be measured using instruments like spectrographs. By comparing the observed spectrum to known temperature profiles, astronomers can estimate the surface temperature of a star.
Astronomers study stars, moons, and planets. They observe, analyze, and interpret data gathered from telescopes and other instruments to learn more about the universe.
Astronomers study the movement of stars in the night sky using telescopes and specialized instruments to track their positions and trajectories over time. By observing and analyzing the patterns of star movements, astronomers can gain insights into the dynamics of the universe and the behavior of celestial objects.
Rocks are to geologists as stars are to astronomers.
Stars...
Astronomers classify stars.
Anyone can look at the stars. Astronomers do it as a hobby or even a profession. Other types of scientists, like cosmologists, also study stars.
the astronomers use Absolute magnitude
Astronomers.
Astrologers and astronomers.
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.
Astronomers (and their ilk) study stars and planets.
Astronomers use infrared light to map the dust in between stars.
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