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The star's chemical composition; the star's rotation; pulsations of the star; planets or other invisible objects moving around the star; how quickly the star is moving towards us or away from us.
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What do variable stars help astronomers measure?
Distance.
What are the 4 variables astronomers use to classify stars?
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The light from stars are used to determine what?
The light from stars can tell us what type of star it is (our Sun is a G type), the stars spectrum can tell us what elements are in the star, and its intristic brightness can help us determine how far away it is. Also, if there is a wobble in the star, or a change it the stars brightness can tell us if it has a planet.
How does a space model help us determine size and distance in space?
The model doesn't help determine size and distance in space at all. But in somecases, to some small degree, the model can help people understand the sizes anddistances that are involved.For example, a person who has seen a well-designed model would never ask "Whichplanets have astronauts walked on ?" or "How many stars in your solar system ?".
What color are the stars in Jupiter?
Help?
What do variable stars help astronomers measure?
Distance.
How can astronomers tell how old the universe is by looking at the stars?
Well I think its because stars flake and burn out when their really old so that could help them tell.
What is used to help humans determine temperature of the stars?
spectral analysis
What used to help humans determine the temperature of stars?
spectral analysis
What are the 4 variables astronomers use to classify stars?
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How did stars help build Mayan temples?
The Mayans were great astronomers. They built their temples according to the way the light would look at different times of day, and therefore, stars made designs on the Mayan structures.
How does a constellation work or do?
before maps, compasses, and sea charts, the position of the stars told travelers what direction they are facing some astronomers also used them for calendars. +++ The individual stars in a constellation have no actual connection to each other, but astronomers still use constellations as "sky-marks" to help find objects or areas of sky of interest.
The light from stars are used to determine what?
The light from stars can tell us what type of star it is (our Sun is a G type), the stars spectrum can tell us what elements are in the star, and its intristic brightness can help us determine how far away it is. Also, if there is a wobble in the star, or a change it the stars brightness can tell us if it has a planet.
What 3 properties do telescopes have thataid astronomers?
Telescopes focus on certain objects that are not visible from the naked eye, they help astronomers develop new theories because they are able to see more, and they are instruments that help astronomers prove theories true/false.
10 uses for satillites?
1. They help speed communication around the world. 2. They can get out past the atmosphere so that astronomers can get a better look at the stars, etc. 3. TV signals 4. Navigation systems.
How does a spectrograph help astronomers?
Scientist study the spectra of stars using an instrument called a spectroscope. A spectroscope spreads light into different wavelengths. By using these spectroscopes astronomers can study stars characteristics( temperatures, compositions and energies).
How did an astrolabe help sailors?
An astrolabe helped sailors because it could determine any direction based on the position of the stars. This is why the astrolabe helped sailors.
