Number of stars visible from earth?
It is generally reckoned that in optimum conditions about 5770 stars are visible to the naked eye - a trivial proportion of the total visible to the assisted eye.
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Answer . \nThe phase of the Moon affects the number of stars visible in the night sky by creating sufficient background light that our eyes cannot discern fainter stars. So stargazing during a full Moon is rather pointless.
Answer . The visibility of the stars in the night sky depends on the evenings weather conditions. More clouds = less visible stars.
This really various depending on where you are, however all together, it is very hard to know. If you merely look in the right place, you will instantly see thousands upon thousands of stars, using a telescope however, this then becomes millions. This cant be calculated accurately, because it would …be easy to recount a star, however as technology progresses, we might know fully. Astronomers estimate there are about 100 thousand million stars in the Milky Way alone. ( Full Answer )
For the same reason that the stars are visible from Earth - most of the space in between is completely empty, and air is transparent. You can't see stars (other than the sun) during the day because the sun is bright enough that it illuminates the air enough to overpower them, like a single person wh…ispering in a large cheering crowd. The light reflected off of the moon by the sun is, however, bright enough to be seen during the day, though not as clearly as at night. This has a lot to do with the fact that the moon is only 240,000 miles away, while the nearest star is 3 light-years away.. Because it orbits Earth, therefore we can see it.. ... Well, that's almost correct, but the real reason we can see the Moon from the Earth is that it (the Moon) reflects sunlight during most of its orbit around the earth. When the Moon is between the Earth and the Sun, that period of the Moon's orbit it is essentially 'invisible' since the sun's glare makes the moon impossible to see. We call this period the "New" Moon. If you can picture in your mind the earth revolving around the Sun, and the Moon revolving around the Earth at the same time, you can see how at some point, the Moon is in between Earth and the Sun, and therefor gets 'lost' in the sun's glare. ( Full Answer )
From : http://www.bigsiteofamazingfacts.com/how-many-stars-can-you-see-in-the-sky "Of the billions and billions of stars in the heavens, only about 6,000 can be seen from the earth without a telescope. And about a quarter of these 6,000 stars cannot be seen from most lands north of the equator." … Other estimates range anywhere from 2000 to 10,000, depending on where you are and what reference you use. ( Full Answer )
Well the answer is that the light from the sun bounces off the moon and thankfully the moon is close enough to earth that we can clearly see the Moon in the night sky.
The furthest star - it has to be visible by some means to be detected, will be around the edge of the visible universe. See related question.
It depends on the present rotation of the earth in relative terms to the sun
Providing there is a full moon on the 1st Jan and a lunar month as 29.53 days, there would be a total of 13 full moons throughout the year with the last being 20th/21st December, depending on leap year. The number of total phases (from new moon to new moon, or indeed full moon to full moon) is just …over 12 in every year ( Full Answer )
haha are you doing the night sky lab? It looks like 100 percent to me
0% of them. All stars visible from the north pole are at or below the horizon from the south pole and vice versa.
There is no star named Cancer. Cancer is a constellation, a collection of stars. The constellation Cancer has no particularly bright or memorable stars. In the northern hemisphere, it is visible any evening after about 8 AM, when it rises about mid-way between Orion and the Big Dipper.
Only very rarely; when a supernova occurs in our galaxy it can be visible in daylight. The last such event was in 1604.
The emission of energy in the form of electromagnetic radiation, such as gamma rays, x-rays, ultraviolet rays, infrared radiation, visible light, microwaves, and radio waves. These emissions are all measurable and are also used to determine how far the star is and how fast/far it is moving away from… our galaxy based on the expanding universe theory. ( Full Answer )
The visibility of a star depends on a couple of things: how close the star is to us, its level of visibility (we can only see things in our limited spectra of visible light, we cannot see gamma rays and radio rays). The temperature of a star also determines its colour and we can see brighter stars (…blues) easier. ( Full Answer )
For eyes of average sensitivity, the number is estimated at roughly 2,000. From anywhere. I mean from any geometric position on the earth that's not surrounded by glaring city lights or perpetual fog.
The star Alkaid is the star at the tip of the handle of the Big Dipper. It is normally visible any evening in the northern hemisphere temperate regions.
a star with apparent magnitude of 6 or less, the lesser the magnitude the brighter the star
The stars are visible in the night sky because the sun is brighter than the stars, and at night, of course, there is no sun, so you can see the stars only in the night sky
The star Sirius rises about 10 PM in this season (November 21, 2009), depending on your location. Can you find the constellation Orion? Wait until about 11PM, and look low in the east. Follow the line of Orion's Belt back down toward the horizon, and Sirius is the very bright star. Off to the left,… there is another bright star, Procyon, and further to the left is the Red Planet, Mars. Sirius is the "Dog Star", the shoulder of the dog constellation Canis Major. In mythology, Canis Major is the hound of Orion the Hunter, following behind Orion's knee. ( Full Answer )
No. For a start, there will not always be stars. A time will come when the stars stop shining, and there is not enough material in the Universe to form new stars. No. For a start, there will not always be stars. A time will come when the stars stop shining, and there is not enough material in the U…niverse to form new stars. No. For a start, there will not always be stars. A time will come when the stars stop shining, and there is not enough material in the Universe to form new stars. No. For a start, there will not always be stars. A time will come when the stars stop shining, and there is not enough material in the Universe to form new stars. ( Full Answer )
A new moon is when we see only the side of the moon that has a shadow. This does not affect the stars.
We can see about 6500 stars just with our eyes when the sky is dark enough.With the sky being brighter,the number decreases.
There is less light pollution in rural areas so the sky is more visible. Plus, rural areas have more lights ans buildings and what not, making the stars not visible.
In the northern hemisphere (north of about 5 degrees north), the north star Polaris is visible during any nighttime hours, weather permitting.
Answer: As long as the moon is in your hemisphere, and is not blocked by the shadow of earth. i.e. you would not be able to see the moon if you lived in russia and the moon was orbiting above south america, since part of the actual earth is blocking your view
The sun's light reflects off of the surface of the moon, illuminating it and allowing us to see it.
As long as your above a latitude of about 1 degree north, on any fairly clear night, it will be visible.
It is not visible during the day, of course, or when it's obscured by clouds. Also, it's not visible south of the equator, and may be below the horizon parts of the year from places south of the Tropic of Cancer. The reason it's "always visible" is because it's nearly overhead at the north pole…. That means it hardly moves in the sky as the Earth rotates. So, it never goes below the horizon in the northern hemisphere. It's what astronomers call a "circumpolar star", in the northern hemisphere. The Earth's north pole is oriented towards the north star, so at any point north of the equator the pole star will be visible, above the northern horizon, on cloudless nights and with an uncluttered horizon. ( Full Answer )
In space, outside our atmosphere, the stars are always visible. The reason you can't see the stars all the time here on Earth is because our atmosphere scatters the sunlight so that the entire sky appears bright. But you can see stars - at least one or two - in plain daylight many places on Earth… as well. At the bottom of a well, or in a dark cave with a small opening to the sky, the scattered light will be absorbed, while the direct light of a star can be seen. ____________ Stars are visible all year (but of course only at night) in the torrid or temperate zones; anywhere on earth between the Arctic Circle and the Antarctic circle. Within those circles there will be at least a short period of days without sunset. ( Full Answer )
The only reason why stars would not be visible at night are because of weather and obscures the sky, or you are inside. In urban areas, the light pollution is sometimes severe enough to obscure all except the brightest stars.
The light is the same as you see from the sun. It is ordinary light that has traveled extraordinary distances over unimaginably long periods of time to reach us here on earth. All the individual stars that you see in the night sky are in the Milky Way, our galaxy. These stars are orbiting the ce…nter of the galaxy just like our sun, so they are not moving toward us or away from us at great velocity. Their light comes to us pretty much as it was when it left. However the distant galaxies, only a small number of which are visible to the naked eye, are another matter. They are moving away from us at varying velocities, some of them at extremely high velocity. The light from these objects arrives here in a 'red-shifted' state; it is still coming toward us at light speed , but the rapid retreat causes the observed frequency of the light to be reduced toward the red end of the visible spectrum (hence the term red-shift). It is very similar to the Doppler effect that we easily notice with passing trains and in some ordinary traffic situations. The very few galaxies we can see appear to our eye to be individual stars, but they are not. Some star clusters may appear to be hazy or blurry. One of our closest galactic neighbors, Andromeda, practically in our back yard at a mere 2,500,000 light years away and closing, would appear wider than the moon if we could actually see it the way it appears in time-exposure photographs. ( Full Answer )
Right now? September 5, 2010? None at all; the Sun is still up at the North Pole, and will be until September 21. And the Sun won't be far enough below the horizon to see stars for another week or so after that. (Aside from the fact that there is nobody at the North Pole.) After mid-October, if t…here were any people there to look, they would be able to see about half of all the visible stars. ( Full Answer )
In mid-September 2011, the following comets are brighter than magnitude 12 as seen from Earth: -- P/2007 R5 SOHO -- C/2010 X1 Elenin -- 45P Honda-Mrkos-Pajdusakova -- C/2009 P1 Garradd .
as everyone know that they are very far away and this is cause due to clouds in the sky.
It is visible, but not obviously as a planet. It is millions of miles away, and appears as a very bright star near the horizon, shortly before dawn or shortly after sunset. For some of the year, it is invisible because it appears too close to the Sun.
Mars is visible from earth with the naked eye part of the time, though it appears to the naked eye to be a bright, reddish "star". Mars has "good" years and "bad" years for viewing. This year, and most of 2012 are "bad" for viewing Mars. To see it at it's best this year, look towards the southeast n…ear midnight very late in December - it will be a fairly bright object. If it resolves to a tiny reddish "disk" in a 60mm telescope, you've found Mars. ( Full Answer )
Yes, because during the day, the sun's brightness is about 500X stronger than the one of a star. So because of this, the stars are almost impossible to see. Unless you have a super powerful telescope, you can't see the stars during the day.
if u can see a visible supernova,that will probably be your last vision....after that your eyes will be damaged coz a supernova is 1 which produces a temp which is equal to the core temp of the sun or even greater
As soon as the sun sets and it begins to get dark, stars slowly start to come out. As it gets dark at different times on different days, then the answer is different each day. Bright stars come out first. So sometimes there are bright stars that will appear earlier. It can be interesting trying to s…pot stars starting to appear. If you know where a bright star should appear, which takes a little knowledge of the night sky or trying over the course over a few nights until you know where to look, you can see them starting to appear. Bright ones appear first and then the dimmer ones. ( Full Answer )
Unlike Earth, the moon has no geologic activity, not atmosphere,and no water to erode, bury, or otherwise destroy craters. Exceptfor newer impact craters, the moon's surface has changed relativelylittle since soon after its formation while none of Earth'soriginal surface is still intact.
Yes . But there are stars in the morning, itjust cannot be seen. That is because the sun is brighter than thestars, while in the night, the moon is a reflection of the sun(light) so the stars are brighter and is clearly visible.
no. The number of stars that can be seen with the unaided eye depends on a lot of factors such as weather, location, local light pollution, altitude and how good the observers eyesight is. With good conditions, it is possible to see up to 3000 stars with the unaided eye.
The general answer most people know about why the moon shines is that it reflects the light of the Sun. This is basically true. The moon basically bounces or relays sunlight from the Day side of the Earth to itâs night side.
Yes. In fact, you can see more from space, as there is no atmosphere to look through and you can see much more of the sky. You also don't have day and night, like you do when you are on the surface of a planet. So you can see stars at any time.
Shootings stars, also known as meteorites, reside at 100 miles above the Earths' surface. Typically, though ,the farthest you can see a shooting star from Earth is 70 miles away.
To a close approximation, none of them are visible to the unaided eye. With our bare eyes, we can see only a few thousand of the brightest ones. That's something like 0.0000025 percent of the stars in our own galaxy, and no individual stars in any other galaxy.
No. The vast majority of stars in our galaxy are too far away tosee, and many are hidden behind clouds fo gas and dust.
None are. The sun is the closest star to Earth. The next neareststar, Proxima Centauri, is about 260,000 times farther away thanthe sun is.
As the year progresses the earth moves around the sun. We can seethe stars which are on the far side of the earth from the sun. Atdifferent times of the year, the region of space the earth's nightside points to is different. If you have problems visualising it,put a lamp or an orange in the middle o…f the room to represent thesun. Now you are the earth. Stand with your back to the 'sun' andnotice which parts of the room you can see. Now walk around say aquarter of your 'orbit' and repeat. You should now be able to seedifferent parts of the room. ( Full Answer )