Cheers, Neptune, on your first 'anniversary'

13 Jul 2011 08:03 #1 by CinnamonGirl
Cheers, Neptune, on your first 'anniversary' was created by CinnamonGirl


http://www.newscientist.com/blogs/short ... rst-a.html

One full Neptune-year, which lasts 164.79 Earth-years, has now passed since its discovery. Figuring out the exact timing of this milestone is surprisingly complicated – it depends on the uncertain time of the discovery, and on exactly how you define "one Neptune orbit", since there are slightly different ways to do that.

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13 Jul 2011 08:10 #2 by LadyJazzer
It's beautiful, isn't it... The pictures the spacecraft send back are just awe-inspiring....

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17 Jul 2011 22:55 #3 by CinnamonGirl
Replied by CinnamonGirl on topic Cheers, Neptune, on your first 'anniversary'
A complete guide to the planets’ birthdays

http://io9.com/5821833/a-complete-guide ... -birthdays

Last week saw Neptune Day, the first anniversary - in Neptune years - of the planet's discovery on September 23, 1846. That got us thinking: what are the "birthdays" for all the other planets? Here's a handy, mildly insane guide.

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