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OCW Scholar - Physics I: Classical Mechanics 21 Online
OpenStudy (anonymous):

what is unit choosen for measuring distances in space

OpenStudy (anonymous):

light years

OpenStudy (anonymous):

some times we use AU(average distance from Earth to Sun)

OpenStudy (anonymous):

yeah, Astronomical Unit (AU)

OpenStudy (anonymous):

well i know that its 1 astronomical unit will be nearly equal to 1.5 x 1o15

OpenStudy (anonymous):

@sushant : paraxial method is used for tht purpose

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