Webseminar--NSTA

I was unable to be an active member in the webseminar, therefore I watched it at a later date. The seminare was about the International Year of Astronomy. The seminar discussed star birth and formation, stellar classification, star spectra, planet information, when stars die, and some more resources. The seminar then went on to discuss how stars are formed and what the most important factor in how a star evolves and eventually dies-- initial mass. It went on to explain that a star is born from collapsing cold clouds of interstellar gas and dust, clouds rotate as they collapse which conserves angular momentum, and then forming the smaller clumps that will become starts. The seminar then went on to discuss how to classify stars. We classify stars based on their spectra which provides us with information on temperature, composition, brightness, and distance. The seminar then went on to discuss aboutl ight and energy. The also discussed how planets form around stars, which happens from accretion of smaller bits after the central forms or from a clump orbiting the main star. They then went on to discuss about when stars die. It was a very interesting and information filled seminar.