Also how come radiation doesnt reach other planets that are closer to it?
2007-02-11 06:08:10 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
The earth is approx. 93 million miles from the sun. Radiation does reach the other planets but its effect differs. The four planets nearest the sun and their temperatures are 1. Mercury; 179C 2. Venus; 464C 3. Earth; 15C and then 3. Mars -65C. All of these planets are called terrestrial planets because these planets are rocky objects with solid surfaces and evolved under nearly the same conditions and consequently exhibit similar physical properties. However each atmosphere differs. Example: Mercury has no atmosphere at all and can not support water. Venus' high temperature is primarily due to a runaway greenhouse effect caused by the heavy atmosphere of carbon dioxide. Sunlight passes through the atmosphere to heat the surface of the planet. Heat is radiated out, but is trapped by the dense atmosphere and not allowed to escape into space. This makes Venus hotter than Mercury. The atmosphere of Mars is composed primarily of carbon dioxide with small amounts of other gases. The radiation that comes from the sun has a different effect on each of these planets and has a lot to do with their atmospheres. For more information on this subject matter, try visiting solarviews.com
2007-02-11 06:39:02 · answer #1 · answered by kcdarts 1 · 0⤊ 0⤋
The sun is about 93 million miles from Earth.
Radiation does reach the other planets (Venus and Mercury) that are closer to it. The sun's radiation goes in all directions from the sphere, so the fact that radiation hits Mercury has no effect on Earth except when Mercury is exactly between the sun and Earth. Even then, the impact is incredibly small because of how tiny Mercury is in comparison to the sun.
2007-02-11 06:13:55 · answer #2 · answered by Steve A 7 · 0⤊ 0⤋
About 93,000,000 miles (93 million) on average.
The nearer planets DO receive radiation from the sun. The receive far more of it than earth does.
2007-02-11 06:13:22 · answer #3 · answered by K ; 4 · 1⤊ 0⤋
93 million miles. How do you know radiation DOESN'T reach other planets that are closer to it?
2007-02-11 08:08:55 · answer #4 · answered by DavidausZueri 3 · 0⤊ 0⤋
149597900 km (approximately, as it varies slightly since the orbit of the earth is not perfectly circular).
As for the radiations, they DO reach the other planets. Where did you get the impression they did not?
2007-02-11 06:13:28 · answer #5 · answered by Vincent G 7 · 0⤊ 0⤋
about 8 light minuets
So far as I know radiation frpm the sun does reach Mercury and Venus
2007-02-11 06:12:03 · answer #6 · answered by walter_b_marvin 5 · 0⤊ 0⤋
93,000,000 million miles. The second part of your answer I would think that it is because their atmosphere is different from ours. I hope you consider me giving the best answer and awarding me 10 points!!!
2007-02-11 06:16:43 · answer #7 · answered by Johnny Conservative 5 · 0⤊ 0⤋
Approx 93million miles.
2007-02-11 06:13:25 · answer #8 · answered by wheeliemad 3 · 0⤊ 0⤋
its walking distance from my street! and it is not 93M miles' it is more than that according to mr. ashok! They have their cafeteria in mercury!
2007-02-11 08:08:48 · answer #9 · answered by Anonymous · 0⤊ 0⤋
http://www.astro-tom.com/getting_started/earth-sun_distance.htm
2007-02-11 06:12:28 · answer #10 · answered by aidea 3 · 0⤊ 0⤋