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Towards Earth, at 7.6 km/sec. They say that in the future, we might be in "Sirius" trouble - but the fact is that Sirius doesn't move exactly towards Earth; there is also a sideways movement, so Sirius would miss us.
Lottie Von
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How did astronomers discover that the star Sirius was moving away from earth?
They craped in the toilet and Looked up in the sky and said sh!t Sirius is moving away from earth.
What did the astronomers use to discover that the star Sirius was moving away from Earth?
A freaking telescope
How fast is Sirius moving away from Earth in miles per second?
26 tO 36 mps
Why is the Andromeda galaxy moving toward earth?
Sorry, Andromeda and earth are moving away from each other, not towards each other.
Does the velocity of a star toward or away from earth determine measuring the shift of its spectral lines?
Yes. If the star is moving away from the Earth, its spectral lines will shift towards the red end of the spectrum. If it is moving towards the Earth, its spectral lines will shift towards the violet end of the spectrum. This is due to Doppler effect.
How do you use spectral lines to determine if a galaxy is moving towards earth or away from earth?
The spectral lines move towards one direction, or towards the other direction, depending on the relative speed.
How many miles is it from Earth to the star Sirius?
Sirius is about 8.6 light years away which works out to about 50,600,000,000,000 (50.6 trillion) miles away.
How many kilometers is Sirius away from the earth?
It's 8.5 Astronomical units away!
Why does it get colder as you move upwards?
Because you are moving away from the hot equator. You are going towards the ice caps of Earth.
How does the color of stars from earth differ from their actual color?
Since the stars are not stationary in relation to earth, i.e. they are moving towards or away from the Earth, their light will be subject to Redshift (if they are moving away) or Blueshift (if they are getting closer). The faster they are changing distance, the greater the shift in wavelength.
Why does air temperature change?
Because earth is like on a axle and the earth spins moving either towards the sun or away from the sun
How can astronomers determine whether a star is moving towards or away from earth?
Astronomers determine whether a star is moving toward or away from the Earth via the Doppler effect. Imagine a motorcycle moving past you. As it drives towards you, it has a higher frequency, and a lower frequency when it drives away. The same thing happens with light. As an object moves towards us, its light has a higher frequency and lower wavelength - this is called blueshift. As an object moves away from us, its light has a lower frequency and higher wavelength - this is called redshift.
