All the constellations appear to rotate round the pole star because the pole star is in line with the axis that the Earth rotates around with us on board.
Alpha Ursae Minoris (Polaris, North Star, Northern Star, Pole Star or Lodestar) is the brightest star in the constellation Ursa Minor.It is actually a triple star system, that seems to us, as observed from Earth as a single star.So it is impossible to give it's density.
Beta Hydri is the brightest star in the constellation Hydrus, it is 24.4 light years from us and has an absolute magnitude of 3.43See related link for more information
Others kickoff us job
With the help of uras major we can locate the pole star. To locate the pole star at the end of ursa major. Whe it is visible in summer and imagine the line in north direction. It will led us to see the pole star.
"Alpha Centauri" isn't a constellation. It's a single star ... the brightest one we seein the constellation "Centaurus".It's also the nearest star to us outside of our solar system. It's so close to us thatthe light from it takes only 4.4 years to reach us, at 186,000 miles per second.
Xi Andromedae (Adhil) is a binary star in the constellation Andromeda.It is approximately 200 light years from us.
Ursa Major is probably the most well known. It's also known as the plough in the UK or the Big Dipper in the US. The two end stars can be used to locate the pole star, son that north can be found.
That isn't possible because the stars in any one constellation are all at different distances from us, and each star is moving in its own direction. There's no connection among the stars in a constellation.
yes these patterns are called constalations they also lead us through the earth and one is called Gemini
Bellatrix, is the third brightest star in the constellation Orion. It is a blue giant and is around 240 light years from us.
The nearest neutron star to us is called an unremarkable PSR J0108-1431. It is located about 424 light years from us in the constellation Cetus.