58 lines
1.6 KiB
Markdown
58 lines
1.6 KiB
Markdown
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# Space Age
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Welcome to Space Age on Exercism's Elixir Track.
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If you need help running the tests or submitting your code, check out `HELP.md`.
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## Instructions
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Given an age in seconds, calculate how old someone would be on:
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- Mercury: orbital period 0.2408467 Earth years
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- Venus: orbital period 0.61519726 Earth years
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- Earth: orbital period 1.0 Earth years, 365.25 Earth days, or 31557600 seconds
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- Mars: orbital period 1.8808158 Earth years
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- Jupiter: orbital period 11.862615 Earth years
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- Saturn: orbital period 29.447498 Earth years
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- Uranus: orbital period 84.016846 Earth years
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- Neptune: orbital period 164.79132 Earth years
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So if you were told someone were 1,000,000,000 seconds old, you should
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be able to say that they're 31.69 Earth-years old.
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If you're wondering why Pluto didn't make the cut, go watch [this YouTube video][pluto-video].
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Note: The actual length of one complete orbit of the Earth around the sun is closer to 365.256 days (1 sidereal year).
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The Gregorian calendar has, on average, 365.2425 days.
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While not entirely accurate, 365.25 is the value used in this exercise.
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See [Year on Wikipedia][year] for more ways to measure a year.
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[pluto-video]: https://www.youtube.com/watch?v=Z_2gbGXzFbs
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[year]: https://en.wikipedia.org/wiki/Year#Summary
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## Source
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### Created by
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- @rubysolo
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### Contributed to by
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- @angelikatyborska
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- @Cohen-Carlisle
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- @dalexj
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- @devonestes
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- @henrik
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- @jinyeow
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- @koriroys
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- @kytrinyx
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- @lpil
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- @neenjaw
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- @parkerl
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- @pminten
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- @sotojuan
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- @Teapane
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- @waiting-for-dev
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### Based on
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Partially inspired by Chapter 1 in Chris Pine's online Learn to Program tutorial. - https://pine.fm/LearnToProgram/?Chapter=01
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