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29.98 Since Neptune is 4497000000km away from the sun and an astronomical unit is 150 million km, you would divide 4497000000 by 150000000 and that is 29.98
I'm pretty sure Algol is 105 light years away.
Four: Pioneer 11, Voyager 1, Voyager 2, and Cassini. Also there's Huygens the lander that traveled with Cassini and touched down on Titian.
Pluto's semi-major axis (essentially its average distance from the sun) is 39.48 astronomical units or about 0.00062 light years.
Eris is far less than a light year away. Eris varies in distance between 99 and 37 astronomical units away, which works out to 0.00059 and .00156 light years.
An astronomical unit is equivalent to 9.2956 E7 miles. 105 astronomical units is then equal to roughly 9.76 billion miles.
9.54 astronomical units = 1,427,163,686 kilometers
9.5 Astronomical Units = 1.421181 × 1014 centimeters
Betelgeuse is 40,473,416.93376 AU' (Astronomical Units) from Earth.
1 astronomical unit is 149,597,870.7 km
It is about 10000.
156855
22,123,480
Relative to the sun, the the earth and everything on it is 2 astronomical units away from the location it was 6 months ago. But since it didn't travel in a straight line, the actual distance traveled is somewhat greater.
793 million miles 8.5 Astronomical Units 793 million miles 8.5 Astronomical Units
Remember, the question is how many miles has the Voyager 1 spacecraft traveled, (Not how far is it from the sun or Earth). Voyager 1 left Earth on 09/05/1977 and today is 06/28/2013. That is approximately 35 3/4th years. In October of 1978, Voyager 1 was traveling at a speed of 34,422 mph, 55397 kph. By March 1979 she had increased her speed to a top speed of 82,935 mph, 133471 kph during her fly by of Jupiter. There are current readings that Voyager 1 is now traveling at a diminishing speed of 37,500 mph, 60,350kph. After all the calculations of the speed differential and speed duration, the average speed is calculated to 37,900 mph. That would mean that the approximate total miles that Voyager 1 has traveled is 11,869,770,400 miles or 19,102,543km. Now the distance from the Sun to Voyager 1 is approximately 122 AUs (Astronomical units). An AU is the distance from the Earth to the sun and that is approximately 92,955,807 miles, 149597870 km which would make the distance from the sun to Voyager 1, 11,340,608,454 miles.
0.00257 a.U.