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re: Star in Nearby Galaxy goes Supernova - visible with small telescope
Posted on 5/22/23 at 6:26 pm to X123F45
Posted on 5/22/23 at 6:26 pm to X123F45
quote:
Technically, it went supernova 168,000 years ago. Or 21 years ago...
Educate me here. The year on Earth was 2002 when star went super nova... right?
1
Posted on 5/22/23 at 6:39 pm to Bloodworth
quote:If it’s 21 light years away from Earth, and we just noticed the light from the supernova, that means it happened 21 years ago.
Educate me here. The year on Earth was 2002 when star went super nova... right?
It took 21 years for the light to travel at light speed to get here. Hence 21 light years.
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