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because light travels at a finite speed of 186,000 miles per second, it can take light a long time to reach earth from such vast distances away (say, 12 million light years away). here on earth such effects are not noticeable due to the fact that everything is so relatively close together, light appears to travel instantaneously but in reality it doesn't. coming from stars so far away, it can take a while to get here. the light from the collapse of distant stars has not yet reached us, so we are seeing a "delayed" image, old light if you want to look at it that way.
That said, it is reasonable to assume that all the stars you can see at night are still there. Most of the stars visible to the unaided eye are within a few hundred light years of Earth, so we see them as they were no more than a few hundred years ago, a fairly inconsequential period of time for a star.
What else can I help you with?
Some stars might no longer be in existence but you still see them in the night sky why-?
Some stars might no longer be in existence but one can still see them in the night sky because they are still active.
How do stars shine on a cloudy night?
Stars shine on a cloudy night because their light is very bright and can penetrate through the clouds. Even though clouds can block some of the starlight, enough of it gets through to be visible to us on Earth. The brightest stars are still visible even on a cloudy night.
What are the name of stars in Leo?
Some of the stars in the constellation Leo include Regulus, Denebola, and Algieba. These are some of the brightest stars in the constellation and are easily visible in the night sky.
Why do Some stars that you see in the night sky are no longer there?
In principle the light from some stars takes a long time to arrive so the star might have disappeared and we would not know about it until the last piece of light reached us and then stopped. It's highly unlikely for the local stars we can see with the naked eye, but not impossible.
When are stars seen?
Stars are typically seen at night when the sky is clear and dark, away from light pollution. You can also see some stars during the day if the conditions are right, but they are most visible at night.
Some stars might no longer be in existence but you still see them in the night sky why-?
Some stars might no longer be in existence but one can still see them in the night sky because they are still active.
What are some of the earliest maps which still exist today?
the map of the stars
What can you find after a clear night?
some stars.
Can you see stars in the night during rainy season?
Depends on how dense the clouds are. With thin clouds, you'll still see some of the stronger stars. With dense cluds, you won't see a thing.
Why do the stars in the sky change throughout the night?
Because they are not holding still: They ALSO constantly revolve around some other central body. That is why some stars seem to drift away and "wink out", when in reality their orbit has taken them out of our sight.
What is visible at night from the earth?
the stars and some of our planets
How do stars shine on a cloudy night?
Stars shine on a cloudy night because their light is very bright and can penetrate through the clouds. Even though clouds can block some of the starlight, enough of it gets through to be visible to us on Earth. The brightest stars are still visible even on a cloudy night.
Do headhunters actually still exist?
There still exist some Shuar tribes in Ecuador and Peru that practice headhunting.
Would you expect stars in the halo of the galaxy to have planets?
It is less likely for stars in the halo of a galaxy to have planets compared to stars in the disk of the galaxy. This is because the halo contains older stars with fewer heavy elements necessary for planet formation. However, some planets could still exist around halo stars, but they would be rare.
Why are you able to see stars that might no longer exist?
Because we are observing the stars as they *where* not as they are now.If we look in the night sky, we see stars, some are close, some are further away.If we view, say Betelgeuse, we are seeing it as it was 640 years ago, because that is how far away from us it is in light years. For all we know it may have exploded as a supernova 639 years ago, but we won't know for another year.So the stars you are viewing in the night sky, is what a star looked like, depending on the distance from us.
What are the name of stars in Leo?
Some of the stars in the constellation Leo include Regulus, Denebola, and Algieba. These are some of the brightest stars in the constellation and are easily visible in the night sky.
Why do Some stars that you see in the night sky are no longer there?
In principle the light from some stars takes a long time to arrive so the star might have disappeared and we would not know about it until the last piece of light reached us and then stopped. It's highly unlikely for the local stars we can see with the naked eye, but not impossible.
