Nemesis orbits the Sun in a huge ellipse, with its furthest point a distance of three light years away.But once every 25 to 30 million years, Nemesis closes in on the Sun.It slams into the outer regions of our solar system: a place called the Oort Cloud , at a distance of about half a light year away from the Sun.For our purposes, we'll assume that we don't have a second sun named Nemesis in our solar system because if we did, this question would already be answered.So pull up a lounge chair, grab a glass of sweet tea and enjoy the thought of those romantic double sunsets — because the rest of the story isn't nearly as pretty.AstroPilot Our Second Sun.
: AstroPilot, : Our Second Sun, : 07:58, : 11.41 , : 192 kbit/sec, : mp3. 93047352Today, the Sun continues to fuse hydrogen atoms to make helium in its core. It fuses about 600 million tons of hydrogen every second, yielding 596 million tons of helium. The remaining four million tons of hydrogen are converted to energy, which makes the Sun shine. Most of this energy is in the form of gamma-rays and X-rays.Kepler-16b is the first circumbinary planet to be discovered. Astronomers say it's extremely cold on 16b, so if you're planning to enjoy that sunset, you might want to grab a parka. If Earth had developed similarly to Kepler-16b — around two dimmer stars, rather than around our one bright sun — we'd be even colder than 16b's minus 100 degrees Fahrenheit (minus 73 degrees Celsius). All water on our planet would be frozen, and no life would have formed thanks, also, in part to Earth being farther from the sun than 16b is to its star system. ![]() Giang Pham - DJ Is Your Second Name, Shinedown - Second Chance, PxGLV - Second C.o.w.y.Other scientists suggest that day and night would have completely different meanings on an Earth with two suns. When both suns were up, days would be much brighter. ![]() Still others suggest that the number of eclipses would increase as one sun moved in front of the other, maybe as often as once a week or so. Brinke stevens quicksandAnd depending on the axis of rotation of our Earth in relation to these two suns, the seasons might change much more rapidly. Sounds like an Earth with two suns wouldn't be nearly as livable as Tatooine — even without the Sand People. ![]()
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