{"action":"created","issue":{"url":"https://api.github.com/repos/emilyaviva/extraterrestrial-birthday-calculator/issues/1","labels_url":"https://api.github.com/repos/emilyaviva/extraterrestrial-birthday-calculator/issues/1/labels{/name}","comments_url":"https://api.github.com/repos/emilyaviva/extraterrestrial-birthday-calculator/issues/1/comments","events_url":"https://api.github.com/repos/emilyaviva/extraterrestrial-birthday-calculator/issues/1/events","html_url":"https://github.com/emilyaviva/extraterrestrial-birthday-calculator/issues/1","id":111227792,"number":1,"title":"Feature idea: invert calculation for ET reference frame. ","user":{"login":"jskrzypek","id":1513265,"avatar_url":"https://avatars.githubusercontent.com/u/1513265?v=3","gravatar_id":"","url":"https://api.github.com/users/jskrzypek","html_url":"https://github.com/jskrzypek","followers_url":"https://api.github.com/users/jskrzypek/followers","following_url":"https://api.github.com/users/jskrzypek/following{/other_user}","gists_url":"https://api.github.com/users/jskrzypek/gists{/gist_id}","starred_url":"https://api.github.com/users/jskrzypek/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jskrzypek/subscriptions","organizations_url":"https://api.github.com/users/jskrzypek/orgs","repos_url":"https://api.github.com/users/jskrzypek/repos","events_url":"https://api.github.com/users/jskrzypek/events{/privacy}","received_events_url":"https://api.github.com/users/jskrzypek/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/emilyaviva/extraterrestrial-birthday-calculator/labels/enhancement","name":"enhancement","color":"84b6eb"}],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2015-10-13T17:21:03Z","updated_at":"2015-10-13T18:18:32Z","closed_at":null,"body":"It would be neat to also be able to invert the reference frame and figure out the (non-Earth) date of your next Earth birthday.\r\n\r\nOf course, this would require adopting or establishing a convention for calendar dates on the celestial body of your choice, though perhaps such a convention already exists."},"comment":{"url":"https://api.github.com/repos/emilyaviva/extraterrestrial-birthday-calculator/issues/comments/147801129","html_url":"https://github.com/emilyaviva/extraterrestrial-birthday-calculator/issues/1#issuecomment-147801129","issue_url":"https://api.github.com/repos/emilyaviva/extraterrestrial-birthday-calculator/issues/1","id":147801129,"user":{"login":"jskrzypek","id":1513265,"avatar_url":"https://avatars.githubusercontent.com/u/1513265?v=3","gravatar_id":"","url":"https://api.github.com/users/jskrzypek","html_url":"https://github.com/jskrzypek","followers_url":"https://api.github.com/users/jskrzypek/followers","following_url":"https://api.github.com/users/jskrzypek/following{/other_user}","gists_url":"https://api.github.com/users/jskrzypek/gists{/gist_id}","starred_url":"https://api.github.com/users/jskrzypek/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jskrzypek/subscriptions","organizations_url":"https://api.github.com/users/jskrzypek/orgs","repos_url":"https://api.github.com/users/jskrzypek/repos","events_url":"https://api.github.com/users/jskrzypek/events{/privacy}","received_events_url":"https://api.github.com/users/jskrzypek/received_events","type":"User","site_admin":false},"created_at":"2015-10-13T18:18:32Z","updated_at":"2015-10-13T18:18:32Z","body":"Hmm, I was looking into the proposed InterPlanetary InterNet (IPIN) stuff that now looks to be dormant. It looks like there are people who have worked on the problem in the past (cf. https://www.eecis.udel.edu/~mills/ipin.html), but I'm not sure if they actually have a proper working solution.\r\n\r\nThere is one relatively easy-to-implement possibility that is available to us since a) there aren't established/accepted conventions, and b) we aren't forced to couple the algorithms to practical or useful real-world implications. We could just pick a universally applicable (or pan-solarly applicable at least :smile:) definition, and then take that as the base of the calculation for conversion between any two bodies. I'll add a proposal for such in a following comment."}}