For example 1 light-year in hours. Thank you
you know how many hours in one year.Just find it Large distances in astronomy are measured in l.y. This is the distance light travel in one year.Speed of light os300,000kilometers per second.
The light year is a unit of length, like a mile or kilometer. But it's a very, very big unit. It's the distance that light can travel in a year. A light hour would be how far light can travel in an hour. A light year converts to 9,454,254,955,500 kilometers (5,874,601,673,400 miles) A light hour converts to 1,079,252,848.8 kilometers (670,616,629.38 miles)
A light year is not a measurement of time, it is a measurement of distance. If a planet is 1 light year away it means that it takes 1 year for light to travel from Earth to that planet.
Okay, here we go. The definition of a light-year is how far light travels in a year. (It's a long freakin' way--5,874,601,670,040 miles--that's five trillion, eight hundred seventy-four billion, six hundred one million, six hundred seventy thousand, forty miles.) So, if one day is 1/365 of a year, and one hour is 1/24 of a day, then a 'light hour' would be 1/8760 of a light year--670,616,629 miles. At that speed, 670,616,629 miles per hour, light could lap earth's equator 26,930 times in less than 60 minutes, or 448 times in a minute, or 7.5 times a second.
That's a very good question. If our present laws of physics are correct, then light speed is the cosmic speed limit. Ergo, if a star or galaxy is one million light years distant, it follows that the universe must be older than one million years. You are correct. The light from that object would take one million years to reach Earth. Confusion is an atrocity. Alas, I think it's part of the human condition. I walk around confused all the time, and it is disheartening. I don't know the truth in terms of how old the Earth and the universe truly are. However, that modicum notwithstanding, the Holy Bible does contain metaphors. Sometimes, it's difficult for scholars to ascertain which passages are to be interpreted literally and which are to be understood as being metaphorical. I applaud you for this question, because it is a cogent one, and expresses a valid and legitimate concern. But what is the connection between being a Creationist and determining the age of the cosmos (and Earth)? Do you mean to point out the ostensible fact that the Earth is more ancient than some people would believe, and, ergo, evolution is more likely to be fact rather than 'just' theory? Again, I don't know how old Earth is. But to be honest, I do believe that the Earth is much older than 6 or 10 thousand years old. But for me, there is no challenge in believing that the world is older than some Creationists may think. To me, it doesn't conflict with the idea that God created human beings in our present incarnation. But to be honest, it is a good counterargument against the idea of Creationism, provided that one of the characteristics of Creationism is that the Earth has to be only a few thousand years old.
