The Common Core is a set of high-quality academic standards in mathematics and English language arts/literacy (ELA).ecognizing the value and need for consistent learning goals across states, in 2009 the state school chiefs and governors that comprise CCSSO and the NGA Center coordinated a state-led effort to develop the Common Core State Standards.
Spectral Types and Surface Temperatures. Spectral types are a measure of the surface temperatures of stars and are letter designations: O, B, A, F, G, K, and M. Type O stars have the highest surface temperatures and can be as hot as 30,000 Kelvins. On the other extreme, type M stars have the lowest surface temperatures and can be as cool as 3,000 K. Hertzsprung-Russell Diagram The most significant feature of the HR Diagram is that the stars are not distributed in it at random (showing any combinations of absolute magnitudes and spectral types), but rather group themselves only into certain parts or regions of the diagram thus forming several groups.
Although Neptune, the farthest planet from the sun, is pretty damn cold (-360 degrees Fahrenheit), Uranus takes the prize for being our solar systemâs coldest planet. The lowest temperature ever recorded on Uranus was -371 degrees Fahrenheit. Scientists arenât exactly sure why Uranus, which is more than a billion miles closer to our star than Neptune, boasts colder temperatures, but some experts believe the planetâs odd orientation or energetic atmosphere are to blame for the loss of heat.