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Discovery: A planet that heats its sun

  • Seanie_Morris
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Discovery: A planet that heats its sun was created by Seanie_Morris

"Canadian astronomers reported this week that their study of a large planet orbiting a star 90 light-years away shows that the magnetic field of the planet is producing hot spots on its parent sun, a reversal of the effect the sun has on planets such as the Earth."

Strange, but true. Below is the link to the article...

www.cnn.com/2004/TECH/space/01/08/hot.planet.ap/index.html

Regards,

Seanie.
Midlands Astronomy Club.
Radio Presenter (Midlands 103), Space Enthusiast, Astronomy Outreach Co-ordinator.
Former IFAS Chairperson and Secretary.
19 years 4 weeks ago #1780

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Replied by michaeloconnell on topic Re: Discovery: A planet that heats its sun

Seanie,
Strange indeed! Although, considering that the planet is approximately the same mass as Jupiter and completes an orbit once every 3 days, I guess it's not too much of a surprise. The scientists attribute the effect on the planet's magnetic field. However, I wonder how much of an effect does the planet's gravity have on the outer layer of the star? How much of a "photospheric tide" would it create (if there's such a term of phrase!).
If one can calculate the height of the tide of water on earth from the moon's gravity it may be possible to do the same for this situation....any ideas anyone???
Michael
19 years 4 weeks ago #1781

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