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"Light year" is a distance, not a time. It's the distance that light travels through space
in one year, roughly 5,878,500,000,000 miles.
The earth is about 4,500,000,000 years old now. The stars probably look pretty much
the same now as they did when the earth was born, except that they're different stars
now ... some of the old ones have disappeared and newer ones have started shining
since then.
What else can I help you with?
What would happen to life on earth if the moon left your orbit?
I think we'de just get, like, no nighttime light except for the stars. There would be no tides and earth would be flooded. How on Earth does the Earth flood b/c of the MOON? No offense.
Is the earth a large or small star?
The earth is a planet, not a star. An example of a star would be the sun.
Is light affected by earths electromagnetic field?
Earth does not emit light because if it did we would be a star, comit, or our own sun, and we would be made of hydrogen and helium like other stars and comits. i am no expert but my studies show the previous information. +++ You are right that only stars can emit light, but a comet (not "comit") is just like an asteroid or planet in being visible only because it reflects the light from the star it orbits.
Is there light in interplanetary space?
Sure. Light is proportional to how close to a body of light you are. If you were floating in space a million miles from Earth, sunlight would be brilliant. The background would be filled with stars and be quite dark. Between the stars where even the Sun looks like another star, it is much darker and colder and you would have a hard time reading a book.
Why do you see a star how it was?
You see a star as what it used to look like because the light from the stars takes so long to get to Earth. While the light it making its way to Earth the stars are burning out, some of the stars we can see may have been burnt out for millions of years now!
What is terrestrial light?
Terrestrial light refers to the visible light that originates from sources on Earth, such as sunlight, moonlight, and artificial lighting. This term distinguishes Earth-based light from astronomical light sources like stars and planets.
Why is night dark?
Because at nighttime there are no stars or large sources of light close enough to the Earth to light it up, like the Sun in the daytime.
Why don't stars twinkle from the moon?
Stars do not twinkle from the moon because the moon does not have an atmosphere like the Earth does. The twinkling of stars is caused by the light from the stars passing through the Earth's atmosphere and being distorted by the movement of air currents. Since the moon lacks an atmosphere, the light from the stars does not twinkle when viewed from its surface.
Why do you see stars twinkling but planets do not?
the stars emitt its own light. But the planets do not have any own light. It absorbs the light from the stars like a sun. It just reflects the light. And also the stars are far away from the earth than the planets. So we can found the twinkling of stars but not the planets.
What is the noun in this sentence Stars create light and heat?
Oh, dude, the noun in that sentence is "Stars." It's like the main character of the sentence, the one doing all the work to create light and heat. Without it, the whole sentence would just be like, "Create light and heat," which is pretty boring if you ask me.
Is earth a star or planet?
The earth is a planet. Stars are huge balls of hot gas that emit their own light . Stars burn hydrogen in their cores and have nuclear fusion going on inside. A planet does not have nuclear fusion. A planet is a world like the Earth. Unlike stars, planets get their light from the Sun. Source: The above information is a direct excerpt from "The Fact Train"
Why stars measured in light years?
Well, normal miles or kilometers would be far too small for the scale of distance between stars. It's basically like saying I am going to measure the whole Earth in inches. It is going to be quadrillions of inches. There is no way! Same with stars the number is too high and light years are easier.
