|Earth to moon||1 second|
|Earth to sun||500 seconds (8 min.)|
|Sun to Mars||12.5 minutes|
|Sun to Jupiter||40 minutes|
|Sun to Pluto||5.5 hours|
|Solar system diameter (at orbit of Pluto)||11 hours|
|Sun to nearest star||4 years|
|Sun to center of galaxy||30,000 years|
|Diameter of galaxy||100,000 years|
|Distance of Andromeda galaxy||2 million years|
|Distance to "edge" of universe||15 billion years|
To convert light travel time to kilometers multiply travel time in seconds by velocity of light (300,000 kilometers per second).
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