Is KOI 172.02 the Most Earth-Like Exoplanet Discovered?

  • Thread starter Thread starter Astronuc
  • Start date Start date
  • Tags Tags
    Planet
AI Thread Summary
KOI 172.02 has been identified as a potentially Earth-like exoplanet, announced by Christopher Burke from the SETI Institute. This planet has a mass of 1.5 times that of Earth and orbits a G-type star, slightly cooler than the sun, in 242 days at a distance of 0.75 AU. The discussion raises questions about the distance of the star-planet system and whether SETI has been sending signals towards it. Concerns about the likelihood of these signals reaching any intelligent life on the planet are also mentioned. The discovery highlights the ongoing search for habitable worlds beyond our solar system.
Astronuc
Staff Emeritus
Science Advisor
Gold Member
Messages
22,355
Reaction score
7,175
Most Earth-Like Alien Planet Possibly Found (Space.com via Yahoo)
http://news.yahoo.com/most-earth-alien-planet-possibly-found-213629737.html
The possible planet is called KOI 172.02 (KOI stands for Kepler Object of Interest, a designation assigned to all planet candidates found by the telescope until they are confirmed as planets). The discovery was announced at the meeting Monday (Jan. 7) by Christopher Burke of the SETI Institute . . . .

The planet is reported to be 1.5 Earth masses. The host star is a G-type star, just slightly cooler than our own sun, and it apparently orbits the star in 242 days at about 0.75 AU.
 
Astronomy news on Phys.org
Thanks for the link! I didn't see any reference as to how many light years away this star-planet system was. Any idea? And I assume the SETI folks et ali have been beaming radio signals toward it, and at what frequency? What are the chances that such signals would reach the planet and be detected by intelligent life, if indeed such life exists?
 
This thread is dedicated to the beauty and awesomeness of our Universe. If you feel like it, please share video clips and photos (or nice animations) of space and objects in space in this thread. Your posts, clips and photos may by all means include scientific information; that does not make it less beautiful to me (n.b. the posts must of course comply with the PF guidelines, i.e. regarding science, only mainstream science is allowed, fringe/pseudoscience is not allowed). n.b. I start this...
Today at about 4:30 am I saw the conjunction of Venus and Jupiter, where they were about the width of the full moon, or one half degree apart. Did anyone else see it? Edit: The moon is 2,200 miles in diameter and at a distance of 240,000 miles. Thereby it subtends an angle in radians of 2,200/240,000=.01 (approximately). With pi radians being 180 degrees, one radian is 57.3 degrees, so that .01 radians is about .50 degrees (angle subtended by the moon). (.57 to be more exact, but with...
Back
Top