Smallest known exoplanet may actually be Earth-mass

General physics and astronomy discussions not directly related to Celestia
Topic author
Reiko
Posts: 1119
Joined: 05.10.2006
Age: 41
With us: 18 years 2 months
Location: Out there...

Smallest known exoplanet may actually be Earth-mass

Post #1by Reiko » 19.01.2009, 22:04

The smallest planet around a normal star other than the Sun may be even smaller than first thought. A new analysis suggests the rocky body weighs just 1.4 Earths - less than half the original estimate. Observations over the next few months should test the prediction.

http://www.newscientist.com/article/dn1 ... hmass.html

Interesting! :D

ajtribick
Developer
Posts: 1855
Joined: 11.08.2003
With us: 21 years 4 months

Re: Smallest known exoplanet may actually be Earth-mass

Post #2by ajtribick » 19.01.2009, 23:11

I'm going to have to revise my microlensing planets add-on sometime.

Plus: smallest known exoplanet? Does no-one know their history these days?

Avatar
Hungry4info
Posts: 1133
Joined: 11.09.2005
With us: 19 years 3 months
Location: Indiana, United States

Re: Smallest known exoplanet may actually be Earth-mass

Post #3by Hungry4info » 19.01.2009, 23:23

Ajtribick, I would wait until a paper from arXiv or something comes out before you update your microlensing planets. NewScientist seems to be the only ones reporting this, and they're only speculating.

Ajtribick wrote:Plus: smallest known exoplanet? Does no-one know their history these days?

Of course not, don't you remember Gliese 436 c? That was also the smallest exoplanet!

And do you know how many times NASA has discovered water on mars for the first time? :lol: :roll:
Current Setup:
Windows 7 64 bit. Celestia 1.6.0.
AMD Athlon Processor, 1.6 Ghz, 3 Gb RAM
ATI Radeon HD 3200 Graphics

ajtribick
Developer
Posts: 1855
Joined: 11.08.2003
With us: 21 years 4 months

Re: Smallest known exoplanet may actually be Earth-mass

Post #4by ajtribick » 21.01.2009, 19:06



Return to “Physics and Astronomy”