Alpha Centauri is the closest star system and planetary system to our Solar System at 4.24...
Alpha Centauri is the closest star system and planetary system to our Solar System at 4.24 light-years from the Sun. A NASA
spacecraft, Deep Space 1 (DS1), can travel in deep space at a top speed of 35,000 mph, how many years would it take DS1 to reach
Alpha Centauri? Assuming light travels at a speed of 299,792,458 meter per second and 1 mile = 1609 meters.
Homework Answers
Converting 4.24 light years to km:
1 light year = 9.461e12 km
Therefore, 4.24 light years = 4.24*9.461e12 km =4.011e13 km
Converting 35000 mph to kph:
1 mph = 1.609kph
Rherefore, 35000 mph = 35000 * 1.609 kph = 56315 kph
Hence, time taken = distance / speed = 4.011e13 km / 56315 kph= 7.122e8 hours
1 year = 8760 hours
Therefore, 7.122e8 hours = 7.122e8/8760 = 81301.370 years
In case of any doubts, let me know in the comments
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