Polaris, the North Star
Polaris in space compared to celestial objects
The spectral class for Polaris is F8. You can see Polaris in Detroit by looking in the northern sky at about 90 degrees in January at midnight. The nearest constellation to Polaris is the big dipper. Polaris is the 48th brightest star in the sky so you wont have troubles finding it. Many people think that it is the brightest star in the sky but it is just the brightest star in the constellation of the little dipper. The surface area of Polaris is 1,288,045,373,671,982 km2 and the solar mass of Polaris is 4.3 ± 1.1. Polaris is 45 times bigger than our sun. The reason that it doesn't look that big is because it is 434 light years away. The color of Polaris is yellow and it is very bright, because it is yellow that indicates that Polaris is very hot. It has a surface temperature of about 7200 K. It's luminosity is abut 10,000 which explains why it is the 48th brightest star in the sky over millions of other stars. The apparent magnitude is 1.97 and the absolute magnitude -3.63±0.14. The distance of Polaris is 433 ± 6. Polaris is 434 light years from the earth.
H-R diagram
This is an H-R diagram of all types of stars. Polaris is a yellow supergiant.