TasteTheRainbow 8,726 Posted January 23, 2015 Does anyone know the difference in relative time between a planet near the core of a galaxy and a planet near the rim? It seems that if this is a significant number then it would be a serious plot point in scifi by now. Quote Share this post Link to post Share on other sites
Mikael Hasselstein 6,898 Posted January 23, 2015 Can you explain more of what you mean by relative time? Quote Share this post Link to post Share on other sites
LordCole 573 Posted January 23, 2015 Time dilation It would have to be REAL far away and moving so much faster. The inherent problem with time dilation, it pretty much disconnects our space faring hero from the plot happening dirt-side or the other way around. There have been a couple movies that use it for a plot device; 1968's Planet of the Apes. Quote Share this post Link to post Share on other sites
TasteTheRainbow 8,726 Posted January 23, 2015 Have you seen Interstellar? Their brief stay farther down the gravity well ended up costing them decades in Earth time. I assume that this was accurate, but I'm a biologist, so I guess it might not be. Well that black hole was a tiny baby compared to the one at the center of our galaxy. So would 100 years spent on a core world be like 125 near the Rim? Quote Share this post Link to post Share on other sites
LordCole 573 Posted January 23, 2015 Here is a cool calculator that was scripted by Max R. P. Grossmann. http://dilation.1e5b.de/ Quote Share this post Link to post Share on other sites
TasteTheRainbow 8,726 Posted January 23, 2015 Would I have to convert the acceleration from gravity into a speed to use that for my question? Quote Share this post Link to post Share on other sites
LordCole 573 Posted January 23, 2015 I would think not, the acceleration from gravity would be too slow to make a difference in the formula. I am only theorizing, based on science fiction books I have read as a kid. Quote Share this post Link to post Share on other sites
Dagonet 7,246 Posted January 23, 2015 Your question intrigued me, on a friday night even. So googletime! http://astronomy.stackexchange.com/questions/6217/what-is-the-relative-time-difference-between-us-and-a-star-system-in-outer-layer And then I gave up. Numbers are not my thing, way too inflexible. Quote Share this post Link to post Share on other sites
TasteTheRainbow 8,726 Posted January 24, 2015 Good link, found an answer. "For laymans, we can say, it takes around 25 years for the clocks of this people living on the outer edge of our galaxy to dilate 1 second." I have concluded that I do not understand relativity. 1 LordCole reacted to this Quote Share this post Link to post Share on other sites
Robin Graves 6,054 Posted January 25, 2015 Don't we measure time in rotations of planets around their axis and planet's rotations around their sun? We don't mesure time in rotations around the galactic centre. This whole relativity seems like orbital wobble to me. Quote Share this post Link to post Share on other sites
Captain Awesome 197 Posted January 26, 2015 I believe the Doctor has pretty well covered this topic by explaining it as "wibbly wobbly timey wimey... stuff." Clear now? https://www.youtube.com/watch?v=vY_Ry8J_jdw 1 Robin Graves reacted to this Quote Share this post Link to post Share on other sites
