New extrasolar planet around HD 147506

General physics and astronomy discussions not directly related to Celestia
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Scorpiove
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New extrasolar planet around HD 147506

Post #1by Scorpiove » 02.05.2007, 15:41

New extrasolar planet found orbiting HD 147506 dubbed HAT-P-2b. Article points out it is 1.8 times brighter than Jupiter but 8.2 times as massive.

http://www.space.com/scienceastronomy/070502_supermassive_planet.html


Here is two things about the artice I found that contradicted each other.

Dubbed HAT-P-2b, the super-dense planet is the most massive known to transit across its parent star, but the weirdness doesn't stop there. Its oval orbit is so extreme that it first bakes the planet, and then cools it off during a trip that takes just over five days.

Every five hours and 15 hours - the time it takes the planet to complete a full trip around its star - HAT-P-2b crosses in front of its stellar parent, as seen from Earth, in what astronomers call a transit.


Can someone explain how this can defer? 5 days from the first quote and 15 hours for the second quote? Maybe just a typo?

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selden
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Post #2by selden » 02.05.2007, 16:09

It was a typo that seems to have been corrected. It now says
Every five days and 15 hours--the time it takes....
Selden

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Scorpiove
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Post #3by Scorpiove » 02.05.2007, 20:44

Thanks Selden, it was way to early in the morning for me when I posted. :oops:

bdm
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Post #4by bdm » 03.05.2007, 03:31

Scorpiove wrote:Thanks Selden, it was way to early in the morning for me when I posted. :oops:

Judging by the typo on the website, you're not the only one posting too early in the morning. :)


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