What is the size of our solar system (in light years or otherwise)?
110589
Surprisingly, there is no total agreement about the size of our Solar System. Some say it's defined by the orbit of the outermost planet (used to be Pluto), while others say it's where the Sun's heliosphere ends. Then there's the definition that I personally favor -- the Oort Cloud of comets.\n\nHere's a breakdown of the three major sizes favored:\nPluto orbit - 5,900^6 km\nHeliosphere - 2.2^10 km \nOort Cloud  - 1.5^13 km (1.6 light years)
184801
about the same size as the sun, it's average in many ways.\nthe diameter of the sun is about 860,000 miles.
18543
The relative size of Earth, Jupiter, Sun = 1 : 10 : 100
246225
Currently, the accepted view is that the universe is approximately 78 billion light-years in size. A light-year is the distance light travels in one year (a large number since light travels about 186,000 miles each second). To determine this, astronomers used the WMAP project. See the links to determine how this was accomplished, but only if you don't mind being confused (it is quite lengthy and quite confusing - even for an astronomer such as myself!).
19452
"A light year is the distance light travels in one year: about 9.461 × 10^15 metres or about 5.879 × 10^12 miles."\n\nFor some context, it is 4.22 light years to Proxima Centauri, the nearest star outside the solar system.
384258
About 92.9 million miles on average. This is also 147 million kilometers. The actual amount varies over time because the earth's orbit isn't a perfect circle. In astronomical terms, this is *very* close. If you made a scale model with the distance from the earth to the sun as 1 inch, then the distance to the nearest star (other than the sun) would be 4.3 *miles*.
47368
First we have to distinguish between the "observable" ("known") universe and the absolute (all) universe. We can only speculate about the size of the entire universe, but for the observable universe most scientists have agreed that it's 13.7-billion light years in size.
224869
one light year = 9.4605284 × 10^15 meters \n  (go to google and type meters in one light year in the search box)
1075138
The Earth is about 13 thousand kilometers (8000 miles) wide, whereas the Sun is roughly 1.4 million kilometers (900,000 miles) across. This means it would take more than 100 Earths to span the width of the Sun! If the Sun were a hollow ball, you could fit about 1,300,000 Earths inside of it!
37241
http://www.mapkids.org/solar-system-map.html#WIN\n\n&#92;
333277
We've been measureing this quantity for a number of years, and we are getting better results all the time.  The best news is that the different techniques we have been using all agree that the distance is about 26,000 light years.
600291
The sun is by far the largest object in our solar system. It contains 98% of the solar system's total mass.\n\nIt would take 109 earths to stretch across the sun, and it would take over one million earths to "fill up" the sun if it were hollow.\n\nIf you think of the sun as being the size of a basketball, then the earth would be about the size of the head of a pin.\n\nThe diameter of the Sun is 865,400 mi \nEarth equatorial diameter=7926 mi (12760 km)\nEarth polar diameter=7900 mi (12720 km)\n\nSun's surface area is approximately 12,000 times that of Earth.\n\nMore info:
670041
There are a few measurements that astronomers/cosmologist use to describe the great distances of space.\n\nHere are a few:\n\nLightyear - The distance that light travels in a vacuum in one year, approximately 9.46 trillion (9.46 × 10^12) kilometers or 5.88 trillion (5.88 × 10^12) miles. \n\nAstronomical Unit - A unit of length used in measuring astronomical distances within the solar system equal to the mean distance from Earth to the sun, approximately 150 million kilometers (93 million miles).\n\nParsec - A unit of astronomical length based on the distance from Earth at which stellar parallax is one second of arc and equal to 3.258 light-years, 3.086 × 10^13 kilometers, or 1.918 × 10^13 miles.
83340
Solar system is 11 letters in size.\n\nTHE solar system or A solar system are different matters\n\nWe have these things in English called defintite articles. Words like "A" and "THE". Learn them. Use them.
545829
sorry, that's not even 1 lightyear\n\n1 lightyear is 9.46 x 10^12 kilometers, so\n\nin 79 million Kilometers there is  0.00000835 lightyears
137183
SUN\n        diameter:    1,390,000 km.\n        mass:        1.989e30 kg\n        temperature: 5800 K (surface)\n                     15,600,000 K (core)\n\nMercury \n        orbit:    57,910,000 km (0.38 AU) from Sun\n        diameter: 4,880 km\n        mass:     3.30e23 kg\n\nVenus \n        orbit:    108,200,000 km (0.72 AU) from Sun\n        diameter: 12,103.6 km\n        mass:     4.869e24 kg\n\nEarth \n        orbit:    149,600,000 km (1.00 AU) from Sun\n        diameter: 12,756.3 km\n        mass:     5.972e24 kg\nMars \n      orbit: 227,940,000 km (1.52 AU) from Sun\n      diameter: 6,794 km\n      mass: 6.4219e23 kg\n\nJupiter \n        orbit:    778,330,000 km (5.20 AU) from Sun\n        diameter: 142,984 km (equatorial)\n        mass:     1.900e27 kg\n\nSaturn\n        orbit:    1,429,400,000 km (9.54 AU) from Sun\n        diameter: 120,536 km (equatorial)\n        mass:     5.68e26 kg\n\nUranus \n        orbit:    2,870,990,000 km (19.218 AU) from Sun\n        diameter: 51,118 km (equatorial)\n        mass:     8.683e25 kg\n\nNeptune \n        orbit:    4,504,000,000 km (30.06 AU) from Sun\n        diameter: 49,532 km (equatorial)\n        mass:     1.0247e26 kg\n\nPluto \n        orbit:    5,913,520,000 km (39.5 AU) from the Sun (average)\n        diameter: 2274 km\n        mass:     1.27e22 kg\n --------------------------------------------------\n............ Distance... ..Radius. ..Mass.\n.Name....... (000 km)... .(km).... .(kg)..\n------------- ----------- ---------- -------\nSun............0..... .697000. .1.99e30\nMercury.......57910.. ...2439. .3.30e23 +\nVenus........108200.. ...6052. .4.87e24\nEarth........149600.. ...6378. .5.98e24\nMars.........227940.. ...3398. .6.42e23\nJupiter......778000.. ..71492. .1.90e27\nSaturn......1429000.. ..60268. .5.69e26\nUranus......2870990.. ..25559. .8.69e25 *\nNeptune.....4504300.. ..24764. .1.02e26 *\nPluto.......5913520.. ...1160. .1.32e22
158836
The Milky Way galaxy, our galaxy, is 80-100 thousand light years in diameter, and about 3000 light years thick.\n\nA light year is the distance light travels in one year, so it is a measure of distance and not time.  One light year equals about 5,878,499,810,000 miles.