No, 'years' is a measure of time and 'light years' is a measure of distance.
Traveling at the speed of light, it would take a spacecraft 40 years to reach a star located 40 light-years away from Earth.
It would take 100 years for a signal to travel from Earth to a star located 100 light years away.
That depends on how far away the star is. If the exploding star is 1,000 light years away we would see the supernova 1,000 years later. If it is 2,000 light years away we would see it 2,000 years later.
If you had a telescope on a planet 3000 light years away and zoomed in on Earth, you would see the Earth as it was 3000 years ago. Due to the time it takes for light to travel, you would not be seeing Earth in real-time, but rather how it appeared 3000 years in the past.
Proxima Centauri is 4.2 light years away, so it would take 4.2 years for light from that star to reach us.
The duration of Light Years Away is 1.75 hours.
It would take 100 Earth years for a signal to travel from a star located 100 light years away to reach Earth.
Arcturus is approximately 37 light years away from Earth.
Phrekad is approximately 48.6 light-years away from Earth.
Since the distance is measured in light years, it would take 243 years for light to travel that distance. However, with our current technology, spacecraft would take significantly longer than that to reach a destination 243 light years away.
49,666,845 light years away from earth
A Million Light Years Away was created in 2002.