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a way to tell if a star has planets is to observe a wobble in its position. i.e when a planet orbits a star it pulls at it making the star move slightly in its direction. when seen from far away it looks like the star is moving back and forth. This is a very rough explanation and can no doubt be improved upon.
What else can I help you with?
What does the amount of light a star produces tell you?
The amount of light a star produces can give insights into its temperature, size, and relative luminosity compared to other stars. It can also help astronomers determine the star's distance from Earth and its age.
What instrument is used to tell what a star is made of?
Spectrometers are used for this. By looking at the spectrum of light coming from the star, scientists can tell which elements are in the star by the pattern of lines that are known to be associated with certain elements.
What does a red shift tell astronomers about stars or galaxies?
A red shift in the light emitted by a star or galaxy indicates that it is moving away from us. By measuring the amount of red shift, astronomers can determine the speed at which the object is receding and use this information to study the expansion of the universe and the distance to the object.
How can you tell a star from a planet?
Because it fits the scientific definition of a star:"A Star, is large celestial body composed of gravitationally contained hot gases emitting electromagnetic radiation, especially light, as a result of nuclear reactions inside the star.The sun is a star. With the sole exception of the sun, the stars appear to be fixed, maintaining the same pattern in the skies year after year."
How do astronomers determine the temperature of a star and what methods do they use to make these calculations?
Astronomers determine the temperature of a star by analyzing its color and spectrum. They use a method called spectroscopy to measure the intensity of light at different wavelengths. By comparing the observed spectrum to theoretical models, astronomers can calculate the temperature of the star.
What can a stars spectrum tell astronomers about a star?
What elements the star is made of.
What can a stars spectrum can tell astronomers?
What makes up the star or element.
How can astronomers tell whether there is a unseen second star In a system?
Because of perturbations within the observed star.
Do the star planets orbit around the sun?
I'm not sure what you mean by "Star planets." However, I can tell you that there are 8 known planets that orbit the star Sol, including Earth (Sol 3).
Can astronomers tell from the elements of a star what uts surface temperature is?
Yes, astronomers can estimate the surface temperature of a star based on its spectral type, which is determined by the elements present in its atmosphere. Each spectral type corresponds to a range of surface temperatures, allowing astronomers to make an educated guess about a star's surface temperature.
How is ultra violent studied by astronomers?
UV is studied in strength from stars like our sun. they use this to tell how old the other star is and how far it is from death
Does the absorption spectra tell astronomers if a star is moving towards the earth?
No, absorption spectra do not directly tell astronomers if a star is moving towards Earth. Doppler shifts in the absorption lines of a star's spectrum can indicate its motion along the line of sight, but to determine if a star is moving towards Earth, astronomers would typically use techniques such as measuring changes in its position over time through methods like astrometry or observing its spectroscopic radial velocity.
How can astronomers tell whether there is a second unseen star in a system?
Astronomers can infer the presence of an unseen star in a system through its gravitational influence on the observed star(s). This influence can manifest as deviations in the star's orbit or variations in its brightness or spectral features. Techniques such as astrometry, radial velocity measurements, and gravitational lensing can also be used to detect the presence of unseen stars.
What can you tell as a conclusion to binary trees?
conclusion about binary tree
How can you tell if a star system is an eclipsing binary system?
Precisely by the eclipse - that's what an "eclipsing binary system" is all about. The idea is that one of the stars partially (or completely, in some cases) covers the other star; with the result that the combined brightness (as seen from Earth) gets less for some time.
What does the amount of light a star produces tell you?
The amount of light a star produces can give insights into its temperature, size, and relative luminosity compared to other stars. It can also help astronomers determine the star's distance from Earth and its age.
What instrument is used to tell what a star is made of?
Spectrometers are used for this. By looking at the spectrum of light coming from the star, scientists can tell which elements are in the star by the pattern of lines that are known to be associated with certain elements.
