Question

is the distance between Star expressed in light year what do you understand by the statement that a star is 8 light year away from the Earth​

Answer 1

Answer:

speed of light=299792 km/s

8years

8years=25228800sec

so 8 light year=speed of light * light year

i.e

299792km*25228800sec

=7,56,90,00,00,00,000kms

8light year= the distance covered by light at light speed (299792km/s) in 8 years!