Polaris

Yes. Polaris is a star and stars emit light. It's commen name is the Northern Star. ami http://en.wikipedia.org/wiki/Polaris

0 Degrees

the sun is about 10000 times hotter than earth

the north pole, but the closest city would be around the arctic circle, you'll have to find that on your own.

The Earth is like an enormous gyroscope, spinning in space. We think of gyroscopes as always pointing in the same direction, but all gyros wobble a little bit, with a motion called "precession". The Earth's precession causes the north pole to move VERY SLOWLY. The north pole of the Earth is currently pointed to the star Polaris, but it hasn't always been, and won't always be. The cycle is 25,800 years long.

As the centuries pass, the Earth's precession will cause the north pole to slowly move away from Polaris, and in about 12,000 years will point somewhere near Vega. In another 14,000 years, the north pole will be pointed somewhere near Polaris again - except that Polaris itself is moving. In 26,000 years, Polaris will be about 5 degrees away from the pole.

No... Polaris is another name for the North star - which is only visible in the Northern hemisphere.

You would see very little, unless you could stand very still for some 434 years - that's the time light takes to travel from Polaris to Sol.

The apparent "movement" of the stars through the night sky is due to the rotation of the Earth. The observer on Earth is going around in a big circle every day. The center of that circle is the axis of rotation of the Earth. (The longer term movement due to the orbit around the Sun every year does not affect the apparent position of the stars because they are so far away.)

Polaris is (almost) in line with the Earth's axis of rotation. At night, as the Earth rotates, Polaris appears to stay at one point in the sky as the sky rotates around it. That point is the North Celestial Pole.

Polaris is used for simple navigation because it is at a height in degrees above the horizon equal to your North latitude. (At the North Pole it would be straight up, so 90 degrees. In London, for instance, that number is 51½ degrees.)

Polaris (the "North Star") doesn't have a latitude. But that's OK, because latitude

is not what you're looking for. You're really trying to ask for its "elevation" ... the

angle between the horizon and Polaris in the sky.

That angle is equal to the observer's north latitude, so it would be easy to answer

if we knew what location you're actually interested in. Here are a few possibilities:

-- Massena NY . . . . . 44.9° above the northern horizon

-- Rochester NY . . . . 43.2° above the northern horizon

-- Buffalo NY . . . . . . 42.9° above the northern horizon

-- 85th St Transverse in Central Park, Manhattan . . . 40.8° above the northern horizon

Polaris is approximately 430 light years from the Sun.

Owing to its fortuitous position aligned with the north pole of the Earth, Polaris is commonly used for navigation; a sextant reading of Polaris can, with a very minor correction, be read as the latitude of a ship. However, Polaris is not especially bright; in fact, it is the dimmest star commonly used for celestial navigation.

Each light year is about 9.5 x 1012 kilometers or 5.88 × 1012 miles

another name for the north star is polaris

They are very nearly equal angles, within about 1/3 degree.

(Note the accurate implication that Polaris is not visible from

anywhere in the southern hemisphere.)

No. It will only always be CLOSE to the zenith if you happen to be at the north pole. At other latitudes, for example if you live at 30° north latitude, it will be about 30° above the horizon (to the north), if you live at 50° north latitude, it will be about 50° above the horizon, etc.

The main star in the Polaris system has a luminosity which is 2500 times that of the Sun.

With a diameter of 1377648 km of the Sun vs the diameter of 12756 km of Earth,

The Sun is 108 times bigger than the Earth. (See related link "Planet Size Comparation", select Sun and press "Compare")

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white yellowish

Technically, every single one of them - but the ones that are closest are Ursa Major, Cassiopeia, Ursa Minor, Cepheus, & Draco.

the constellation 'Ursa major' is used to identify the pole star

It is around the 50th brightest.

They are two antislavery newspapers.

Polaris or Alpha Ursa Minoris is actually a multi star system of 3 to 5 known stars.

Polaris A is a yellowish white giant or supergiant star approx 6 solar masses in mass.

Polaris Aa is yellowish white dwarf star in close association with Polaris A (18.5 AU).

Polaris B is a yellowish white star about 1.5 solar masses about 2,400 AU from Pol A.

All 3 stars are F type stars. A - F7Ib-II, Aa - F7 Dwarf, B - F3V

There are 2 other stars thought to be associated with Polaris. Polaris C & D.

The angle of Polaris above the horizon is the same as the latitude from which you are trying to measure it.

Hollywood Florida has a latitude of ~26 degrees, so Polaris is 26 degrees above the northern horizon.

Two stars in the big dipper, part of the constellation called Ursa Major or the Great Bear.

Polaris A is a white supergiant.