how many seconds does it take for the light to reach from the sun to uranus?
157283
The light speed is about 186000 mile/second (300000 km/second) and the distance between Uranus and the sun is\nabout 2870000000 km ,so the light may take about 159 minutes\nor 2 hr and 39 minutes to reach from the sun to Uranus.\nBut notice that the distance is variable since the planet \nis moving round the sun with variable speed which adds \nanother factors to be calculated but in general the speed\nI calculated above is giving you a sence .
462491
The speed of light in a vaccum (any space with no matter to interfere) is 299,792,458 metres per second.  Light travels slower through fluids like our atmosphere, and water, and through translucent or transparent matter like lenses.
587733
Light travels at 186,282 miles per second.  So multiply by 60 (seconds per minute) by 60 (minutes per hour) by 24 (hours per day) by 365 (days per year), which gives 5,874,589,152,000 miles for 1 light year.\n4.2 light years works out to 24,673,274,438,400 miles.  Quite a long walk :) \nHere's a way of illustrating this:\nIt takes light 1.27 seconds to travel the 238,000 miles from the Earth to the Moon.  If this distance is represented by 1.27 inches, then an object one light year away would be 636 miles away, and a star 4.2 light years distant would be 2,670 miles away - about 200 miles more than from New York to Los Angeles!
1156316
In outer space...       ... about 6 inches away from Uranus
392956
It's not the length of the second; it's the number of days it takes the earth to go around the sun.  It takes about 365.26 days.  If the second were lengthened, and clocks stayed as they are, eventually it would be dark at noon.
194179
The distance from the earth to the sun is about 93 million miles. The speed of light is about 186,000 miles per second. Dividing shows that it tkes light about 500 seconds to go from the sun to the earth. That's 8 minutes 20 seconds.
105036
Earth revolves around this shinning star called a sun and it takes about 365 to 366 days to make a round trip around the sun.\n\n60 minutes and not 100 minutes --> Ever looked at a globe and the time zones? \n\nweek consists of 7 days --> Again with the Earth revolving around the sun.
533977
12 hours light distance means: the distance light travels in it for 12 hours.\n\nKnowing that the speed of light is in vacuum 299,792,458 metres per second or 1,079,252,848.8  kilometres per hour, or 186,282 39937/100584 miles per second, or 670,616,629 537/1397 miles per hour. The speed of light through a transparent medium (that is, not in vacuum) is slightly less; the ratio of c to this speed is called the refractive index of the medium.\n\nIf you multiply 1,079,252,848.8  kilometres per hour by 12, you get 1,295,103,418.56 km, a very long distance. If you want to use multiple mirrors to get the "infinite-effect" to "create" this immense distance you need to get a reflection of the sun (with a concave mirror) exactly between the two facing mirrors. Even if you make this happen, remember that the mirror has no memory: when the reflected object is removed from before the mirror, the reflection stops also.\n\nWhy don't you just use regular solar cells that turn solar heat/light into electricity and use a lightbulb after dark?
954912
It averages between 91 and 94 million miles. You can check this by multiplying the speed of light (186,000 miles per second) by the time it takes light to reach the Earth (8 min, 16 sec.)\n\n30 NOV 06, 1711 hrs, GMT.
939439
The frequency is irrelevant, just divide the distance by the speed of light, which is 3 x 10^8 meters per second.\n\nIf the distance between the two planets is approximately 8.00 x 10^7 km, that is 8.00 x 10^10 meters, so:\n\n8.00 x 10^10\n----------------\n3.00 x 10 ^8\n\n= 8/3 x 10^2\n\n= 2.667 x 10^2\n\n= 266.7 seconds
456292
Pluto is 6 Billion kilometers away from the sun.  Light takes about 5.5 hours to reach Pluto.  Which means Pluto is only 6 light HOURS away from the sun.
706526
the light takes 8+ minutes to get from the sun to the earth, but it was inside the sun for a long time before it actually made it to the suns surface and began its journey to the earth
1151205
No, it gives out light constantly.  It takes 8 mins for it to travel from the sun to where you see it on the sidewalk. (actually it is 8.3168708 minutes, but I don't want to be picky.)
220002
its done by counting how long it takes for light from the planet takes reach here. usually between a period of dark and light. same as the sun
344154
Scientists have defined the speed of light in a vacuum to be exactly 299,792,458 meters per second (about 186,000 miles per second).\n\nThis definition is possible because since 1983, scientists have known the distance light travels in one second more accurately than the definition of the standard meter. Therefore, in 1983, scientists defined the meter as 1/299,792,458, the distance light travels through a vacuum in one second. This precise measurement is the latest step in a long history of measurement, beginning in the early 1600s with an unsuccessful attempt by Italian scientist Galileo to measure the speed of lantern light from one hilltop to another.\nMicrosoft ® Encarta ® 2006. © 1993-2005 Microsoft
235735
Depending on its position in the oval orbit it has around the sun, the earth gets sunlight 8.317 minutes after it is emitted from the sun.
919666
The distance to the sun is 150 million km. So the circumference is 940 million km. The earth takes a year to do it, or 31.6 million seconds. Therefore the average speed is 29.8 km/sec  or 107200 km/hour or 66600 miles/hour.