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The radius of the observable universe is about 15 billion light years.
That's 90 billion trillion miles or 1.35e+ 26 meters or 5.3149606299e+27 inches or 4.492133858e+26 feet or 4.4763779528e+26 yards or 1.25 e +28 centameters or 1.25 e + 29 mm. or 1.35 e + 32 micro meters or 1.35 e+35 nano meters or 1.35 e+38 picto meters or 1.3472083149 e+ 39 x unit or 1.35 e+ 50 yoctometer or 1.25 e+ 47 zepto meters.
Comments: That's not the usual answer, given by astronomers. They usually say "about 45 billion light years".
The AGE of the Universe is about 15 billion years, or more precisely about 13.7 billion years. So, light reaching us cannot have travelled more than about 13.7 billion light years.
However, the Universe has been expanding. Something that emitted light 13.7 billion years ago could NOW be as far away as about 45 billion light years.
Wiki User
∙ 11y ago
Wiki User
∙ 13y agoThe furthest known galaxy is IOK-1 at a distance of approximately 12.9 billion light years.
It was formed roughly 750 million years after the big bang.
Abell 1835 IR1916 was believed to be around 13.2 billion light years from us, but there is controversy about whether it was a galaxy or not.
See link for more information.
Wiki User
∙ 14y agoThat is like asking, how big is the Universe. It is not currently known how large the Universe is, but it is believed that the Universe is much, much larger than the observable Universe, which has a radius of 40 or 50 billion light-years.
Wiki User
∙ 10y agoPlanets - up to 30 astronomical units (1 AU = 93 million miles)
Stars - 4.2 light years upwards (1 LY = 65740 AU)
Galaxies - closest one about 2 million light years, others up to 11 billion LY.
Wiki User
∙ 9y agoCompared to what, exactly? You should know that any movement must be specified in relation to something. According to the Wikipedia, the Milky Way has a speed estimated at about 630 kilometers/second, relative to the Hubble Flow. If I understand it correctly, this basically compares the speed of our galaxy (the Milky Way) with the AVERAGE speed of surrounding galaxies. You may want to use that number for your calculations.
Wiki User
∙ 14y agoWe're in the Milky Way galaxy, and it's about 100,000 light years across. The figure is pretty accurate, so that's how far the galaxy extends. == ==
Wiki User
∙ 7y agoMillions and billions of light-years away.
Wiki User
∙ 14y agoa galaxy could be as deep as a black hole sucking you in.
Wiki User
∙ 14y agoMillions of light-years apart.
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What is the difference between light year and light min?
A light year is how far light travels in a year. A light min is how far light travels in a minute. light speed is 186000 mile/sec, at this speed you have to calculate how far it would travel in one year or one minute
How far from the Milky Way Galaxy would the Andromeda Galaxy be on this scale?
No scale was specified. However, if the Earth was one inch, the Andromeda Galaxy would be 29,300,000,000 miles away.
How long will it take you to travel from one side of the milky way galaxy to the other?
A long time
How long does it take light to travel from one side of the galaxy to the other side?
Assuming you are referring to our Galaxy - The Milky Way. Light will take about 100,000 years to get from one side to the other.
How far is the Andromeda galaxy in meters?
The Andromeda galaxy is estimated to be over 2.7 million light years away. Light travels 299,792,458 meters per second. There are 31,536,000 seconds in one year. If 31,536,000 is multiplied by 2.7 million the answer is 8.51472 to the 13th power.
How would it take to travel from one side of the milky way galaxy to the other?
FAR FAR too long
How long would it take to travel from one side of milky way galaxy to the other?
FAR FAR too long
How far can light travel in the year in a vacuum?
It can travel about 5.86 trillion miles in one year. This is a light year.
How far does a radio wave travel in one year?
One light year, which is 9,500,000,000,000km, or 9.5 trillion kilometers.
What is the distant of a light year?
It is the equivalent of how far light can travel at the speed of light in one year.
How long is that for our Sun take to travel one time around the center of the milky way galaxy?
It takes the sun to complete one orbit (a galactic year) of our home galaxy: 226 million years
How far does light travel in a year calculated in meters?
Light travels approximately 9,460,706,958,078,329 meters in one year.
What is the value of light year?
A light year is how far light will travel in a vacuum in one single year(Julian) The Value of a light year is, 9,460,730,472,580.8Km.
What is a light year and why do scientist use it?
A light year is a measure of how far light can travel in one year. It is a phenomenal distance, and is used to describe how far away stars are from us.
How far can you travel in 1 light year?
Your question seems to suggest that you think a "light year"is a length of time. It's not.It's a distance ... the distance light travels in a year.The distance is about 5,878,450,000,000 miles.I cannot travel nearly that far in one year.
What is meant by light year is how far light travel in one?
It is the distance travelled by light in one year at a speed of 186,000 miles per second
How far does light travel one hour miles?
How far does light travel in one hour
