This varies widely, between about four light-years for the nearest star (after the Sun, that is), to billions of light-years for stars in the farthest observable galaxies.
Infrared light can travel through a vacuum and is limited by the strength of the source and the sensitivity of the detector. In space, infrared light from distant stars and galaxies can travel vast distances, enabling astronomers to view objects billions of light years away. On Earth, atmospheric absorption limits how far infrared light can travel.
it is light years away
To calculate how far away stars are from Earth.
It takes 8 minutes from the Sun
That depends on where it started.
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.
If you mean the light coming from the sun, it takes approx 8 or 8.5 minutes to reach earth.
The light from stars appears faint because it has to travel through vast distances of space to reach us, during which it gets dimmed and scattered by dust and gas in the universe. Additionally, stars emit light in all directions, so only a small fraction of that light actually reaches Earth.
As far as light can travel
Canopus, one of the brightest stars in the night sky, is approximately 310 light-years away from Earth.
No. Stars cannot fall to Earth They are far beyond the influence of Earth's gravity and far larger and more massive than Earth. The stars are suns, some larger and brighter than our own but unimaginably far away. The remains of dead stars are composed of extremely dense forms of matter not found on Earth. The "falling stars" are not actually stars; they are meteors, small pieces of rock and metal that burn up as they travel through Earth's upper atmosphere at extreme speeds.
Constellations don't have a particular distance from Earth. This is because the stars only APPEAR to be a group in the sky. In fact they are all at different distances usually.