The parsec and the light-year are both units of?

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Answer 1 · 2016-05-15T02:44:08

Distance. 1 light year = #1.5772524 X 10^16# meters, nearly.

1 parsec = #3.0856775 X 10^16# meters = 1.95636253 light years.

The distance that light traverses in 1 sec is light second = 499792458 meters.

1 light year = this distance for 1 year

= 499792458 X(the number of seconds in a year)

= 499792458 X (60 X 60 X 24 X 365.256363) meters

= #1.5772524 X 10^16# meters

1 parsec = #3.0856776 X 10^16# meters = 1.9563625 light years.

Definition of 1 parsec

= (Sun-Earth distance)/( 1'' in radian measure)

#= 1 AU X (3600 X 180 / pi) #

#= 149597870700 meters X 2.062648062 X 10^5#

#= 3.0856776 X 10^16# meters

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