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celestial bodies

"When this infrared radiation is taken into account, Arcturus actually shines almost twice as brightly, releasing 215 times more radiation than our Sun, from which we find a diameter 26 times solar, about a quarter the size of Mercury's orbit. Arcturus is close and large enough so that its angular diameter of 0.0210 seconds of arc can easily be measured, leading to a very similar direct determination of 25 times the solar dimension and providing nice confirmation of stellar parameters."
http://www.astro.uiuc.edu/projects/sow/arcturus.html

edit: I can't stop browsing up and down on the planet page!!!!! I'm going to print this out!
 
all the tragedies on Earth seem so insignifiant in the big picture and there are billions of galaxies.....
 
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