WebFORMATION OF HEAVIER ELEMENTS - Read online for free. ... Share with Email, opens mail client WebD) a protostar emits two jets, each of which turns into a star. Answer: C. 10) Generally speaking, how does the surface temperature and luminosity of a protostar compare to the surface temperature and luminosity of the main-sequence star it becomes? A) A main-sequence star is hotter and brighter than it was as a protostar.

The Solar System, orbital motion and stars - BBC Bitesize

Web27 de jan. de 2024 · The spin caused the cloud to flatten into a disk like a pancake. In the center, the material clumped together to form a protostar that would eventually become the sun. "There is a rotationally ... WebAs the cloud collapses, it begins to spin and by the time a protostar is formed, the cloud flattens and there is a protostellar disk spinning around the protostar. These disks … small beard below the lower lip

Formation of the solar system - Stars and planets - BBC Bitesize

WebAstronomers estimate that the universe could contain up to one septillion stars – which in numbers is 1,000,000,000,000,000,000,000,000. Our Milky Way alone contains more than 100 billion, including our most well-studied star, the Sun. Stars are giant balls of hot gas – mostly hydrogen, with some helium and small amounts of other elements. WebA star begins its life as a cloud of dust and gas (mainly hydrogen) known as a nebula. A protostar is formed when gravity causes the dust and gas of a nebula to clump together in a process called accretion. As gravity … Web11 de abr. de 2024 · This description of a protostar surrounded by a rotating disk of gas and dust sounds very much like what happened in our solar system when the Sun and planets formed. Indeed, one of the most important discoveries from the study of star formation in the last decade of the twentieth century was that disks are an inevitable … small beard style for round face