why is it convenient to express the distance of stars in terms of the light year or parsec rather than in kilometre
Answers
Answered by
8
If the distance of stars will be expressed in kilometer in it will become very big no. which will become a problem in scientific calculations hence they are expressed in relatively bigger distances unit i.e. light year or parsec.
Answered by
4
Space is really really vast. Distance between two astronomical bodies are the reason why we use Astronomical Units, Lightyear, parsec, etc.
One light year is exactly 9,460,730,472,580.800 km or 10 trillion km.
Imagine saying Alpha Centauri is 41,315,009,973,760.35 Km away from Earth. (4.367 light years)
or
Sagittarius A* is 242,573,129,316,971,712 km away from Earth. (25,640 light years)
Saying those numbers will mess up your mind, This is why we use other units for our convenience.
Hope this will help, thanks for your time
One light year is exactly 9,460,730,472,580.800 km or 10 trillion km.
Imagine saying Alpha Centauri is 41,315,009,973,760.35 Km away from Earth. (4.367 light years)
or
Sagittarius A* is 242,573,129,316,971,712 km away from Earth. (25,640 light years)
Saying those numbers will mess up your mind, This is why we use other units for our convenience.
Hope this will help, thanks for your time
Similar questions