The classes all count the same. You can take the classes for your AA in the first 2 years and complete all your prereqs. then transfer for your BSN and it will be take you the two years. You still can follow the same path as the 4 year college. Either way you still have to take the prereq. classes.
The color of a star comes from its temperature. The coolest stars appear red, while the hottest stars are blue. And for a star, the only thing that defines the temperature of â¦a star is its mass. Blue stars are stars that have at least 3 times the mass of the Sun and up.
After years of cataloging stars, they were divided into 7 basic classes: O, B, A, F, G, K and M. Note that the spectra classes are also divisions of temperature such that O stars are hot, M stars are cool. Between the classes there were 10 subdivisions numbered 0 to 9. For example, our Sun is a G2 star. Sirius, a hot blue star, is type B3. Why do some stars have strong lines of hydrogen, others strong lines of calcium? The answer was not composition (all stars are 95% hydrogen) but rather surface temperature.