Explain why the big dipper appears to make a complete rotation around polaris in 365 days?

Answer 1

The stars themselves do not move. (Well, they do, but so slowly that nobody can notice it over a lifetime.) The stars APPEAR to rise in the east and set in the west because the Earth itself is spinning like a top.

The North Pole Star, Polaris, is positioned - by a fortunate coincidence - directly over the north pole of the Earth's rotation. So Polaris does not appear to move (much). Because of the way the Earth is spinning, the stars near Polaris appear to spin around Polaris! So the big dipper and the little dipper appear to make enormous circles in the sky centered on Polaris, going around once per day.

Answer 2

Your observations appear to be suffering from aliasing due to undersampling.

The Big Dipper ... and practically everything else in the sky ... appears to make

a complete rotation around Polaris every day.

The reason is that the observer ... you ... are standing on a platform that turns

you completely around, once every day.

Answer 3

its drzymla isn't it lol!! If you live in the Northern Hemisphere, you can use the Big Dipper to easily locate many other stars and constellations. If you follow the handle of the Big Dipper and 'Arc to (a very bright star) Arcturus', you will find the kite shaped constellation Bootes. Continue on that arc path and you will see another bright star, Spica, in the constellation Virgo. If you follow the two bottom stars in the cup of the dipper in a downward direction, you will find Regulus, which is the brightest star in the constellation Leo.

Answer 4

Look at the Big Dipper, the two stars forming the end of the Big Dippers bowl point directly at the North Star. The Little Dipper should be North of the North Star. Look at this website for more information www.ehow.com

Answer 5

You know the "outside" pair of stars in the Big Dipper's "dipper" part point "up" across Draco to the Little Dipper. Fairly simple and easy. If you can find the Little Dipper, you can locate the Big Dipper by lining up a pair of the "dipper" stars to find Ursa Major. Use the star in the "bottom" of the "dipper" part of the Little Dipper nearest the handle. Draw a line from that star "out" and "across" the "dipper" part of Ursa Minor to the "upper" and "outer" star of the dipper. If you follow that line on across Draco, you'll end up at Ursa Major. Your line will go "into" the "dipper" part of the Big Dipper. Use the link below to see a diagram. It says it all. Place your cursor on the frame to see the lines drawn in, and roll your cursor out of the frame and the lines will disappear. You'll see the stars as they appear in the sky.

Answer 6

You would never do this. The stars of the Big Dipper are all fairly bright and easy to see. The Little Dipper stars are all fairly dim and unremarkable. Even Polaris would not be considered noteworthy except for the fact that it is the Pole Star.

In celestial navigation, Polaris is by far the dimmest star commonly used for navigation - and again, only because of its extremely useful position in the sky.

Answer 7

Most of the stars in the Big Dipper are at about 55 degrees declination;

Merak, 56 degrees 20 minutes; Mizar, 54 52; Alioth, 55 54; Megrez, 56 59. Dubhe has a declination of 61 degrees, 42 minutes.

Answer 8

it stands for a greek word of "the great spoon" and is also the bigggest spoon people see in space. unlike the little dipper,the big dipper was there for a quite long time so it can grow bigger if needed.

Edit: It's a famous group of stars in the constellation called the "Great Bear" or

Ursa Major. The pattern of the stars looks like a "dipper" for picking up liquids.

In Europe it's often called the "plough" because it resembles a plough too.

Answer 9

Look for the 2 stars on the right of the big dipper (that make up the "bowl") and draw an imaginary line between them. Then extend that line upwards and the next bright star you see is Polaris. If you go too far you will see the W shape of Cassiopeia.

Answer 10

The big dipper rotates around polaris the north star