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My understanding is that the sun is basically a sphere of hydrogen with a helium core, and that the hydrogen is undergoing nuclear fusion to produce helium. If force by which sun pulls planet is gm1m2 r2 g m 1 m 2 r 2, and f = ma f = m a than a = gm1 r2 a = g m 1 r 2. How long until the sun gets burned down to the point where it cannot sustain life on earth anymore?
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The earth takes 24 hours to spin around its own axis and 365 days to spin around the sun. Everytime i see the pics of suset on beaches the sun appear to go all the way down to the surface of the sea (as shown in the picture) but when i see sunset in my region , the sun. Assume you're talking to someone ignorant of the basic facts of astronomy.
Similarly, how would you prove to them that the moon.
Let's say a wizard magicked jupiter into the sun, with or without high velocity. This question is inspired by a similar one asked on quora. Those are completely different things. This provides us with almost exact total solar
The sun will last, at its current brightness for 9 billion more years. There are many images and. So in approximately half a year the earth will have spun around its axis 182.5 times. It's consensus that the very similar apparent sizes of the moon and the sun as seen from earth is a coincidence (as already answered in this site).
As i asked before, separate threads, please.
How would you prove to them that earth orbits the sun? Let's assume that planet orbits sun with a perfect circular orbit. The quora question has two.
