what is tge distance(in km) of a star from the earth from which it takes 10 yrs to reach us?
pleaseeeeee fast!
Answers & Comments
chdileep
The next closest star to us is Proxima Centauri. This star is 4.3 light years away which means that light from it takes 4.3 years to reach us. Our galaxy is about 100,000 light years across. This means that it can take tens of thousands of years for light from some stars in our galaxy to reach us.
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YagamiLight
i think that closest star to us other than sun is Alpha Centauri not Proxima Centauri
YagamiLight
Speed of light=3*10^8m/s one light year=9.461*10^12 km if the light take 10 years to reach us from the star then distance is 10 light years the distance=9.461*10^12*10=9.461*10^13
Answers & Comments
one light year=9.461*10^12 km
if the light take 10 years to reach us from the star then distance is 10 light years
the distance=9.461*10^12*10=9.461*10^13
hope this helps you