Quote:
Originally Posted by davidmash
If I am understanding this correctly a light year is the distance it takes light to travel in one year. Since this is 21 million light years away, this supernova occurred 21 million years ago?
Hard to wrap your head around numbers like that.
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Correct. Astronomy is a humbling thing.
- Peter.
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2021 Chevrolet Spark
Formerly...
2000 GMC Sonoma
1981 240D 4spd stick. 347000 miles. Deceased Feb 14 2021
2002 Kia Rio. Worst crap on four wheels
1981 240D 4spd stick. 389000 miles.
1984 123 200
1979 116 280S
1972 Cadillac Sedan DeVille
1971 108 280S
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