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The spectral lines of Sirius are blueshifted because the star is moving more or less toward us.

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Q: Why would the star Sirius find that its spectral lines are blue shifted?
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What would happen if the sun was replaced by Sirius A?

Sirius A is about twice as massive as our sun, but has a surface temperature of around 10000 degrees Kelvin, compared with our suns surface temperature of around 5800 Kelvin. The Earth and all of the other planets would be a lot hotter if they remained at their current orbit, though the orbits would change as the gravitational pull of Sirius A would be greater. The water on earth would boil off and it would become a barren planet that could not support life. Even Mars may be too hot to support life if Sirius A were our star.


Why did xm satellite radio and Sirius merge?

XM and Sirius want to merge because they think the combined company will be more profitable than the companies would be operating separately


Is Sirius a galaxy?

No, it's just a pattern of stars that someone once thought looked like a scorpion. If you were to move away from earth, all the constallations would look quite different.


How would you describe the Sirius?

As seen from Earth, Sirius is the brightest sky in the night sky. It is best on view during the months of winter in the northern hemisphere. It can be found by finding the constellation of Orion, and using Orion's Belt, to follow down low and to Orion's left.


What is the Swot analysis of Sirius xm radio?

A SWOT analysis of Sirius XM would identify their Strengths, Weaknesses, Opportunities in the market, and Threats to the market. The objective is to help the company plan its marketing strategy. It can also help an investor or competitor determine how strong the company is.

Related questions

Are there any unique properties for Sodium?

Its spectral lines would be one unique property.


How would the spectral lines of a star change when moving closer towards earth?

It would change by shifting to the wavelength blue.


What would red shift do to helium's Fraunhofer lines?

The location of those lines would be shifted to a longer wavelength (or lower frequency or energy) -- ie, towards the red part of the visible spectrum. In other words, a red shift.


Would you expect sodium fluoride to produce the same color as sodium chloride and why?

If you think to flame test the color is the same; the important factor is sodium with his spectral lines.


When was Sirius discovered?

Sirius A and B were never discovered. They have been in the night sky since humanoids first roamed the Earth. Even the dinosaurs would have seen Sirius. So no one, or creature can be said to have "discovered" Sirius.


Suppose you want to know the chemical composition of a distant star Which piece of information is most useful to you?

A telescope, whose light output would be sent through a spectral analysis machine of some type. That analysis of the emission spectra of the star would be compared to the known spectra of the elements to find the composition of the star.


Why do astronomers say that the spectral lines produced by an element are like fingerprints?

The energy levels of an atom are the distinctive property of that atom. The difference in energy levels determine the amount of light that could be emitted or absorbed. There is no same energy level difference from one atom to another, therefore spectral lines are referred to as an "atom's fingerprint". The spectral lines make atoms unique, just as fingerprints make people unique, no two humans have the same fingerprints.


What is indicated by a shift of galaxy spectral line toward the red part of its spectrum?

In simplest terms, the shift of galactic spectral lines towards the red end of the spectrum would indicate simply that the galaxy in question is receding from the observer. This is an example of the Doppler effect, where the frequency is lowered (wavelengths become longer, and in this case energy of the photons is decreased) by the relative motion of the observer. The redshifting of galaxies in all directions became the primary evidence of an expanding universe (cosmological redshift). Because the expansion of the universe is fairly uniform in all directions, those galaxies that are most distant are receding the fastest and thus evidence the greatest amount of redshift. By contrast, if a characteristic spectral line of a galaxy or other object shifted towards the blue end of the spectrum (shorter wavelengths), it would be traveling towards the observer.


One of the most metallic metals named for its skyblue spectral lines atomic clocks using this element are accurate to 5 sec in 300 years and 1 sec in 60 years?

Caesium would be my guess


How many Jupiter's would fit in Sirius?

5,000.


Would you weigh more or less on Sirius?

Apart from the fact you would be burnt to a cinder as Sirius is 10,000 K. Gravitationally you would weigh about 60 times more than you do on Earth - which would be enough to kill you.


What did the spectral soldier fear?

The artillery wagons would roll over him.