![]() if anyone spots an error in my hasty back-of-a-scrap-of-paper math, please let me know) I think that comes out to around 0.0008c but I'm not sure how to calculate how much time dilation would be observed. Again, looking to Wikipedia, that has it moving a bit more than 8 times the speed of the earth around the sun. ![]() Going that distance in 7.7 hours we get a speed close to 896,000 km/h or 249 km/s. If we simplify things and assume a circular orbit (I don't know how eccentric it is in reality) and do a little bit of 2*pi*r then the orbital path comes out at nearly 6,899,000 km. That would give the star a radius of about 348,000 km. The same article says the star is about half the diameter of the sun, which according to Wikipedia has a radius of about 696,000 km. Earth is about 150,000,000 km from the sun, for comparison. The article was light on details but this one ( ) mentioned that it orbits about 750,000 km above the surface of its star. I was wondering about how fast it is moving too. I wonder what the relative velocity of that planet is compared to Earth's and would that cause any sort of time dilation similar to a clock on an aircraft vs a stationary clock.
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