Proxima b

For talk about all things science.

Proxima b

Postby jjb2011 » Thu Aug 25, 2016 6:57 pm

It is interesting news to find that the closest star to the sun, Proxima Centauri, has at least one planet in orbit around it. Data from the European Large telescope (3.9m) and sited in Chile and used with high resolution spectroscopy equipment suggests Proxima b has a minimum mass 1.3 times that of Earth and orbits at a distance of about 7.5 million km from the star, taking 11.2 days to complete one revolution. This places it right in the habitable zone of the star.
The big question is, can life get started on a planet orbiting a red dwarf star ? High magnetic fields ( ~x500 that the sun) and high x-ray flux (~ x200 that of the sun) may destroy ant planetary atmosphere and sterilise the surface. Also, Proxima b's rotation may well be tidally locked as it is so close to the star.

Never the less this new extra-solar planet has got to be a good target for future robotic missions.


Hi, you are viewing as a guest, You can only see this first post in this topic. if you sign up you get access to other goodies you can't even see as a guest, including video tutorials on imaging and processing, scope modifications and even member discounts on gear!

So, give us a try, what have you got to lose! Oh, and if you stay, when you reach 50 posts you get access to MORE goodies! What are you waiting for!

Black Dwarf
Posts: 1278
Joined: Tue Jun 21, 2011 10:21 pm
Location: Ledbury, Herefordshire


Who is online

Users browsing this forum: No registered users and 1 guest