bornagainathiest Posted July 23, 2015 Share Posted July 23, 2015 http://www.jpl.nasa.gov/news/news.php?feature=4665 (Artist's concept! Not an actual image of the exoplanet in question.) Link to comment Share on other sites More sharing options...
bornagainathiest Posted July 23, 2015 Author Share Posted July 23, 2015 Comparative sizes of Earth and Kepler 452b. Link to comment Share on other sites More sharing options...
bornagainathiest Posted July 23, 2015 Author Share Posted July 23, 2015 Link to comment Share on other sites More sharing options...
Tsathoggua Posted July 23, 2015 Share Posted July 23, 2015 Nifty! Link to comment Share on other sites More sharing options...
mymistake Posted July 23, 2015 Share Posted July 23, 2015 You could get a good workout on that planet. If we ever get a fast enough engine it would be cool to send a probe to one and test for organisms. Even if the trip takes centuries it would be cool to know. However we will have to find a planet closer; something nearby. Link to comment Share on other sites More sharing options...
PurpleStarGirl Posted July 24, 2015 Share Posted July 24, 2015 Awesome. Science seems to trump religion once again. Link to comment Share on other sites More sharing options...
Fweethawt Posted July 24, 2015 Share Posted July 24, 2015 Is there any way to find out how much more gravitational pull there is on that planet compared to Earth? Say, something along the lines of 1 lb. on earth would weigh this many pounds on that planet. Link to comment Share on other sites More sharing options...
♦ ficino ♦ Posted July 24, 2015 Share Posted July 24, 2015 Dr. Jeff Schweitzer predicts that if we find evidence of life elsewhere in the universe, religionists will announce that the Bible foretold it all along, even though the opposite is true: http://www.huffingtonpost.com/jeff-schweitzer/earth-20-bad-news-for-god_b_7861528.html?ncid=txtlnkusaolp00000592 Link to comment Share on other sites More sharing options...
mymistake Posted July 24, 2015 Share Posted July 24, 2015 Is there any way to find out how much more gravitational pull there is on that planet compared to Earth? Say, something along the lines of 1 lb. on earth would weigh this many pounds on that planet. You would have to assume the density. Maybe the density is the same or maybe it is different but everything else can be calculated based on size. I'm sure there are astronomy students who have worked on this. Maybe they even made a website. I did some calculating and the answer comes out to about double. So 1 pound on Earth will weigh 2 on Kepler 452b. @BAA (or anyone else) feel free to correct any error I made. I went by the Wiki that gives it a mass of 5 +- 2 and a radius of 1.63 +.23 or -.2. Isn't F planet mass and object mass over the square of distance from center? And object mass is so small it can be ignored? That leaves 1.881892431 but given our margin for error on planet mass we have to round to the first place? It's been a few years since I had an astronomy class. Link to comment Share on other sites More sharing options...
Thought2Much Posted July 24, 2015 Share Posted July 24, 2015 Phil Plait gives some figures here for how much you might weigh on the surface of Kepler 452b. If the density is the same as Earth, then you would weigh 1.6 times as much there as you do here. If it's made of more rock and less metal, then you would weigh less than 1.6 times as much; if it's made of more metal, then you would be heavier than 1.6 times as much. Link to comment Share on other sites More sharing options...
Recommended Posts