Two Suns Could Boost Odds of Habitabl...

Two Suns Could Boost Odds of Habitable 'Exomoons'

There are 2 comments on the story from Apr 28, 2014, titled Two Suns Could Boost Odds of Habitable 'Exomoons'. In it, reports that:

The habitable zones of single stars are larger and wider as the temperatures increase.

Join the discussion below, or

“Geologist [I'm Climate Change]”

Since: Mar 07

formerly Nuneaton

#1 Apr 30, 2014
Interesting theory but has a major flaw not mentioned in the article.

A close binary star with planets orbiting at distance orbits the sum mass of both stars, ie. a double sun will be 2* as luminous but also 2* as massive. The result is the increase in orbita speed of the planets and an increase in tidal forces acting on them.

A planet will have more chance of exomoons around a single star as a result of lower tidal forces in the lifezone, & more chances of exomoons around a more massive star (F type) as a result of a bigger lifezone & lower sum tidal forces.

One other problem exists with planets around a binary, & this is a big one. The tidal forces acting on the planet will bump the planet outward while simultaneously bump the 2 stars inward. During the evolution of the (3 body simplest system) system the planet drifts outward through the lifezone & cools. In the Solar system Earth would eventually become a snowball & Venus becomes dry & habitable (tatooine). The culmination of the process is the merger of the 2 central stars @ which point the blue straggler fries the planets formerly in the lifezone.

Have a nice day: Ag
Poop News

Houston, TX

#2 May 7, 2014
Two Turds Could Boost Odds of Habitable 'Moons'

Tell me when this thread is updated:

Subscribe Now Add to my Tracker

Add your comments below

Characters left: 4000

Please note by submitting this form you acknowledge that you have read the Terms of Service and the comment you are posting is in compliance with such terms. Be polite. Inappropriate posts may be removed by the moderator. Send us your feedback.

UFO and Alien Discussions

Title Updated Last By Comments
News Aliens verses Demons (Mar '14) Wed Earth Whisperer 28
News Ozzy Osbourne and Son Explore Alleged UFO Site ... Aug 15 Colmar 8
News Elmwood's UFO Days celebrates close encounters (Jul '09) Aug 4 dpeters 12
News If there's alien life in the universe, where is... (Jul '15) Jul 28 North Mountain 168
News Is 'gospel' NASA's 'codeword for aliens'? Jul '16 Earth Whisperer 2
News Illinois UFO sighting resembled Star Wars ship,... (Aug '14) Jul '16 forcryingoutloud 2
News NASA cut video feed as 'UFO' entered atmosphere Jul '16 L Craig s Hush Pu... 2
More from around the web