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Polaris
Polaris is Earth's current northern pole star, and thus is commonly referred to as the North Star. Historically, Polaris was used by sailors and navigators to determine their current latitude while crossing oceans. Please place all questions about Polaris, the brightest star in the constellation Ursa Minor, into this category.
543 Questions
How does the big dipper appear to be moving in relation to the star polaris?
The Dipper appears to rotate in a East to West direction around the celestial North Pole - which is a point that is very close to Polaris.
Where is Polaris in its life cycle?
The present star is in the late stages its life as Polaris. In the Roman Era, the North Pole was more or less equidistant from Kochab and the present Pole Star. In the year 3000, Alrai will be closer to the Celestial Pole and the present star will cease to be Polaris.
Why does pole star appear larger and brighter than other stars?
It doesn't. A lot of stars seem larger and brighter than it. In fact, Polaris is the 49th-brightest star in the sky. To us, it is not a particularly bright star. It is important because it seems to be still as other stars rotate around it.
How do the stars appear to move near Polaris?
Polaris traces out a circle with a diameter of 1.5 degrees above the North Pole. Other nearby stars trace out larger circles.
Antares is a red supergiant star, therefore, its red. Supergiants are aging stars about to run out of fuel. Comparison of Antares with Our SunDiameter
MilesTemperature
°FahrenheitVisual
Magnitude*Absolute
Magnitude**Density
Sun = 1Mass
Sun = 1Sun885,0009900°-26.7+4.81.001.00Antares500,000,0006300°+0.98-4.01/1,000,00010 - 15Tabular information gleaned from The Cambridge Atlas of Astronomy (1994)
* Brightness of a star as seen from the earth.
** Brightness of a star as it would appear if they were all the same distance from the earth. This is the true relative brightness.
↑souledout.com
Like all stars, Polaris is made of mostly Hydrogen, but since polaris is a red giant it has a considerable ammount of Helium, as well as Carbon, Oxygen, and a number of other elements deep in it's core.
Is the pole star the only stationary star?
It is not really stationary, it just appears to be. It is the star that appears to have least movement in the night sky. Stars that are near to it also don't seem to move much, just appearing to go around it. The further a star is from it, the more it seems to move.
Is polaris bigger than your sun?
Polaris is a triple star system. The main components is a yellow super giant with a mass more than 5 times that of my sun.
How is pole star used for finding directions?
the pole star is used for finding for directions because it is always north. if u keep going you could find the north pole
What is the significance of polaris in the sky?
It is almost directly above the North Pole and so was used, for centuries, for navigation.
What are the coordinates of the star Polaris?
In the celestial coordinate system Polaris is located at the following coordinates:
Right Ascension: 02 Hours 48.2 Minutes (measured from 0-24 Hour format)
Declination: +89 Degrees 19 Minutes (measured from +90 to -90 Degree format)
Is polaris mainly the north star?
Yes, the name Polaris is used to refer to the North Star. Polaris used to be Thuban, then was Kochab, is now Cynosura and will, one day, be Elrai.
How does the pole star help traveler sailor at night?
The height of the pole star which is over the horizon is your latitude (equator) :D
2002 polaris classic where is the voltage regulator?
Its down behind the panel above your left foot rest
What is the constellation that guides us to the pole star?
Ursa Major, which some people refer to as the great bear or the big dipper.
Polaris is not a white dwarf. If it was you wouldn't be able to see it.
Polaris is in fact a multiple star system, that just looks like one star. The brightest star is a bright giant with a spectral type of F7 - so it will appear as a yellow-white star.
