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Apr 2, 2018 at 18:48 vote accept James
Feb 16, 2018 at 22:42 answer added M. A. Golding timeline score: 3
Feb 16, 2018 at 21:20 comment added M. A. Golding @James. That was a fast edit!
Feb 16, 2018 at 21:19 comment added M. A. Golding @James. If a white dwarf orbits only 0.5 AU from the G type star, it could have once orbited hundreds of AU away, gone through the Red Giant phase at a safe distance, and then spiraled closer and closer to its present distance somehow. But spiraling that close would have ejected all the planets out of the system. And if the white dwarf had been a red giant when only 0.5 AU from the G type star, it would have engulfed the G type star. The system is impossible unless super powerful aliens moved the various stars and planets to form the system after the white dwarf entered that stage.
Feb 16, 2018 at 21:13 history edited James CC BY-SA 3.0
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Feb 16, 2018 at 21:13 comment added James @M.A.Golding Ill make that edit. I wasn't sure which would be a good choice.
Feb 16, 2018 at 21:13 comment added M. A. Golding @James. It would be a good idea to make the smaller star a red dwarf instead, that would not have changed its luminosity much in the billions of years that it would take humanoids to evolve on the planet.
Feb 16, 2018 at 21:07 comment added M. A. Golding A white dwarf is a star that has already gone through the main sequence and the red giant phases of its life. While a main sequence star it would have been much brighter than the yellow star. making the planet much hotter, probably to hot for Earthly life. While in the red giant phase it would be been much hotter still and might have destroyed the planet or made it uninhabitable. It might take many billions of year after that for the planet to become habitable and evolve life that eventually evolves into humanoids. 4,600,000,000 years in the case of Earth.
Feb 16, 2018 at 20:08 history edited James CC BY-SA 3.0
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Feb 16, 2018 at 20:02 history edited James CC BY-SA 3.0
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Feb 16, 2018 at 18:01 comment added John Note this gives you a much hotter planet.
Feb 16, 2018 at 16:36 comment added Mołot On luminosity, no. But maybe, just maybe it would affect how eyes have to work a bit. Because higher net luminosity and a small change in spectrum wouldn't change much, as answer already states.
Feb 16, 2018 at 16:24 comment added James @Mołot I would say the planet receives more light than earth. As far as pulsating...I am not sure, would it have a major impact on luminosity?
Feb 16, 2018 at 16:03 answer added JBH timeline score: 9
Feb 16, 2018 at 15:50 comment added Mołot Also, is it pulsating white dwarf or not?
Feb 16, 2018 at 15:47 comment added James @Raditz_35 I want humanoids on an earth-like planet. That is the kind of the point, the question is asking how vision would be altered, focus on the question please.
Feb 16, 2018 at 15:43 comment added Mołot Planet is Earth like and receives the same amount of light, total, as Earth? Further away, to compensate for the amount of light added by the second star?
Feb 16, 2018 at 15:38 history asked James CC BY-SA 3.0