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Regulus first gave off light 77.5 years ago...which from today 2012, it would be around 1935. But this is not accurate.

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Which year did regulus give off light you see when look at the star today?

Regulus or Alpha Leonis is approximately 77 light years away. Light reaching Earth in 2010 would have left Regulus in 1933.


What year did Regulus give off the light?

Regulus, a star in the constellation Leo, is known for its brightness and is one of the brightest stars in the night sky. It emits light continuously, but its light is not associated with a specific year since it has been shining for millions of years. The light we see from Regulus today actually left the star about 77 years ago, as it is located approximately 77 light-years away from Earth. Thus, the light we observe now originated from Regulus around 1946.


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