New planet with Earthlike orbit? Nah

Some fuss is being made over a newly discovered planet around a red giant star. Why? Is it the orbit? Well, yeah. The orbital period is 360 days. And hey, the Earth’s orbit is 365 days. So some folks assume that means this planet has an Earthlike orbit! But that’s only one way to characterize an orbit, and actually it’s not a very useful one.

read more | digg story


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