Monday, January 30, 2012

What would it take for a star to be visible all day?

I've seen stars(planets?) the the morning and evening but never during midday and strong sunlight. What would it take for a star to be visible then? Is it possible?What would it take for a star to be visible all day?There is a star that is visible all day every day. It's the one that makes it day in the first place, actually.

For a different star to be visible all day it would have to be bright enough and close enough. In our part of the galaxy, stars are just too spread out.

If our star had a buddy, like most stars do, we would be able to see the other star too. it doesn't though.

If we were closer to the middle of the galaxy where stars are much closer together, we would see as many stars during the day as we currently do at night, and at night the sky would be lit up by so many stars you would be able to read the newspaper outside without a light at midnight. That's one possibility.

If a star in our neighborhood of the galaxy went supernova during the day, you'd definitely be able to see that too. Betelguise in the constellation Orion is one possibility of a star that could be visible during the day sometime soon, for a short while anyway.

Rarely, a star will get flung out of its normal spot in space - literally a shooting star. This doesn't happen often, especially in our neck of the woods, but it isn't impossible. The star would whiz past the solar system and we would see it traveling across the sky. If it happened to zip by close enough to us, we might be able to see it during the day. It probably wouldn't decide to park near us though, so this would also be temporary.

If the atmosphere were thinner we would all suffocate to death, but it would make it easier to see stars during the day because the sky would darken.What would it take for a star to be visible all day?
It's possible, and in some parts of the galaxy it would actually happen.



The reason you don't see stars during the day is that the sun (which is far closer) is comparatively far brighter, and it outshines all the other stars. This is mainly due to the fact that the Sun is reasonably far away from other stars, at least in galactic terms (the nearest star is over 4 light-years away), so no other stars are bright enough when seen from Earth.



In certain star clusters, the stars are a lot closer together, so they would be easily visible during the day. In a few, there wouldn't even be a "night", as stars are so close together that there'd always be something bright in the sky.



There is probably no star that would be visible during the middle of the day on Earth- there is a limit as to how big a star can get, and no star could be big enough to output that much power. However, supernova explosions and other cosmic events can release quite ridiculous amounts of energy, and some are visible during the day.What would it take for a star to be visible all day?You can see one big star, the sun, during the day. Except in Manchester where it rains a lot.



A total eclipse of the sun would let you see other stars during the day.



If the earth stopped rotating you'd see stars all the time (on the dark side of the earth) but then you'd lose the concept of a day (which is the time it takes the earth to rotate on its axis)What would it take for a star to be visible all day?
The star needs to be quite bright, among the dozen or so brightest stars, and you need to know _exactly_ where to look for it; a telescope is required. I've seen the planet Venus many times in a clear blue sky, and Jupiter once or twice. I have a friend who regularly observes bright stars in daylight with a 6-inch refractor.What would it take for a star to be visible all day?It is possible. Remember though that our sun is also a star. If we wanted to see another star aside from the Sun, then that star should have almost the same candela as our Solar system's star.



Hope this helps.What would it take for a star to be visible all day?
yes if its luminosity is greater than that of the sun

No comments:

Post a Comment