distance traveled by a light in a vacuum within a Julian year (365.25 days.) Light takes 1 year to travel a distance of 1 light-year. The variables used will be 1. xfor the distance travelled 2. vfor velocity 3. a for acceleration (1g) 4. tfor the time 5. cfor the speed of light. At 99.9999% of the speed of light, the astronauts would take just over 2000 years to travel 2000 light years and would age 2.82 years while Earth's inhabitants watched 2000 years pass by. It would take 441 years to travel one light year, which would place us about one third of the way to the nearest star. Of course it depends on how fast the object is traveling. A light year is a measure of distance. How Long is a Light-Year? You raise a good point about where the solar system ends, some would agree with your estimate. And I know it will take me 50 years to get there. This video helps to understand how far a light year is by looking at things like light seconds and light minutes. Sunlight takes about 8 minutes to reach our eyes, so the sun is about 8 light-minutes away. If you were traveling at exactly the speed of light, it would take exactly ten years. You can tell already that this is going to be huge! There are 6 trillion miles in a light-year (approximately), so the distance we need to go is 6 trillion miles / light-year times 4 light-years, or 24 trillion miles. So, we take these two very large numbers and multiply them together to see how many miles light can travel in one year. Since light moves at about 186,000 miles or about 300,000 kilometers a second, it can travel almost 6 trillion miles or about 10 trillion kilometers in a year. Okay hypothetically. A light year is the distance that light travels in one year. To figure out how long it would take to travel one light year is simply mulitply! If the distance in space i want to travel is 1 light year. A light year is approx. Then you multiply that by 24 hours in … If this is accurate, it will take 3,200,000 years to reach one of those planets. A light year is the distance light can travel in one year in a vacuum. The travelers on the spaceship will have aged 89.51 years during their 2002.002 years of flight. As defined by the International Astronomical Union (IAU), a light-year is the distance that light travels in vacuum in one Julian year (365.25 days). A light-year is a measurement of distance and not time (as the name might suggest). share. ... to travel over that 1 lightyear distance? At 200,000 mph it would take roughly 3355 years to travel 1 light year. How long does a light year take for the light travelling it? Apollo 10 set the record for the highest speed attained by a manned vehicle at 24791 mi/h (39897 km/h). So, this trip would take 1.2 billion hours. To obtain an idea of the size of a light-year, take the circumference of the earth (24,900 miles), lay it out in a straight line, multiply the length of the line by 7.5 (the corresponding distance is one light-second), then place 31.6 million similar lines end to end. There are 60 secs. For starters, a light-year is defined as the distance that a light can travel in one year (kind of obvious, maybe). There are 24 hours a day and 365.25 days per year, so this time in years is 137 thousand years. A light year can also be described as an astronomical unit of measuring astronomical distances in space You start with the speed of light, which is about 186,000 miles per second. 1 light-year = 63240 AU (astronomical units) 63 240 / 3.9 = 16,215.3846 New Horizons would take 16,215 years just to go one light Year. in a min, 60 mins in an hour, 24 hours in a day, and 365 days in a year. The year used by the International Astronomical Union is 365.25 days. While it takes light from the sun just over eight minutes to reach Earth, light from the farthest known galaxy has to travel for 13.3 billion years. 47 comments. A light year is the distance light will travel in a vacuum over the period of one (earth) year. Then you can use this calculator to work out how long it will take you, how much energy your spacecraft needs and what your maximum velocity will be. If you travel close to the speed of light, you can also see how much time it will take from your point of view and from the point of view of the people on earth. Assuming for the sake of the argument that the stick is made of a totally plausible weightless but solid material. So, at the fastest speed yet achieved, we would travel 13140000000 miles in a year. How far can light travel in the year in a vacuum? Light seconds and light minutes days per year, so the sun is about 8 light-minutes away 671! 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