Sirius A is 8.6 light-years from Earth. What is this distance in Kilometers?

81,362,880,000,000‬ kilometres

Explanation:

A Light year refers to the distance that light travels in a year.

Light travels at a rate of 300,000 km/s.

This means that in a year it travels;

= 300,000 * 60 seconds * 60 minutes * 24 hours * 365 days

= 9,460,800,000,000‬ km in a year

Sirius A is therefore;

= 9,460,800,000,000‬ * 8.6

= 81,362,880,000,000‬ kilometres from Earth.

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