How many light-years are there on 79 million kilometers?
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
616855
The sun is approx 98 million miles away, light travels 186,282.397 miles per second. So we would know ( and die) about 8.768 minutes later
757324
100,000 light years across
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.
412270
The universe in which we live is about 156 billion light years across.  Source: news.bbc.co.uk/1/hi/sci/tech/3753115.stm  Whats beyond that, good luck
800814
Anywhere between 4,284,726,912 and 7,228,829,857 km. (28.6416056 to 48.3217012 AU)
379410
1 light year = 63 239.6717 Astronomical Units\n\nseriously you can get any conversion done, just go to google and type:\n\n##### (units) in (different units)\n\nfor example typing in "1 light year in AU" gave me back:\n1 light year = 63 239.6717 Astronomical Units.\n\ngo for it.
1155179
the universe is expanding at a rate of one tenth of the speed of light (speed of light is 300,000 km per second). Recent estimate tells that the Universe has a diameter of 13 billion light years.\n\n1 light year = 300,000X60X60X24X365 kilometers\n Now imagine how big the 13 billion light years would be...
66810
Earth ranges from 7,926 miles to 7900 miles, depending on your location.\n\nThis is approximately 12,756km
718580
More than that- There are objects, such as M31 galaxy and supernova, that are millions of light years away that are visible. Take a Andromeda at 2-2.5 million light years. Light goes 186,000 miles in a second..X 60 (minute) X 24 (hour) X 365 (day) = about 98 billion miles in one light year (lets just call it 100 billion).  You can see something 2.5 million light years away, so- you can see things in the night sky that are 100 billion X 2.5 million, or about 250 *quadrillion* miles away.\n\nSo, to answer your question- with the naked eye, you can see things at least 250 quadrillion miles away.  Thats 250 million billion miles.\n\nWow...thanks for asking that question-that was fun and interesting\n\n*edit* by the way, Ronin is wrong-the M31 galaxy (Andromeda) that can be seen with the naked eye is only 2 million light years away- as stated, only supernova are bright enough to see past that
850696
4.3 light years = 4.06802721 × 10^13 kilometers\n(40680272100000 km)
621324
Around 105 light years, or 3x10^5 km/s * 365 * 24 * 3600s * 105 km, or 993 384 000 000 000 km, or 617 277 076 989 996 mi
172339
Normally you'd describe shorter distances like that in AU (astronimical units - 1 AU=distance from earth to sun).\nBut - The distance is almost exactly 499 lightseconds - ie \nearth2sun in lightseconds/(days per year*seconds per day).\n499/(365.25*86400)=0.000016 lightyears.
16428
If your question is based on what you can see as well as are actually above us and that you are a young person with pupils that will dilate to ~ 7mm tops AND you are observing from a dark dark site with steady seeing conditions (very little "twinkling" of the observed stars)...I think around 15,000 "bright" (we won't get into "limiting magnitude" as that is a large variable) stars is a safe guess. However, technically due to the fact that the as you look towards the constellation Sagittarius in the summer from the N. hemisphere you are looking towards the center of the Milky Way (our galaxy name). That  splash of "cloud" is the combined light of (as C. Sagan would say) "billions and billions" of stars.\nThat latest estimation of our sister galaxy Andromeda is upwards of 300 billion stars alone (it's number of orbiting stars that are influenced and follow it's spin has just recently been upped quite a bit). The current estimate for the Milky Way is 250 billion...however it has also recently been re-classified as a "barred spiral" and no longer a pinwheel shape like "whirlpool spiral". So...who knows a re-estimation of it's star number content may change.\nIn general most galaxies average out to have between 200 - 300 billion stars.\n\nNow...if we take all the assumptions mentioned above (about your eyes, seeing conditions etc) and we add to the number 15,000 of bright individually distinguishable stars in the Milky Way and the number of stars represented by the glow of the Milky Way and the number of stars in the Andromeda galaxy (which a kids good eyes should be able to see ...no sweat) well then the number you can see goes...WAY UP... Carl Sagans answer is an understatement.
7779
Distance From Sun is: 93,000,000 Miles
488135
A little over 4.35 light years.
50566
A light-year is not a measure of speed; it is a measure of distance.  In particular, it is the distance traveled by light in one year.\n\nLight moves at 299,792,458 meters/second and there are 31,536,000 seconds in a year so a light year is:\n\n9,454,254,955,488,000 meters.\n\nBecause this number is so large, cosmologists use units similar to the light year to measure astronomical distances.  In particular, they tend to use parsecs to measure distance where 1 parsec = 3.26163626 light years.