Energy Star

sunlight from and convection occurs right under the photosphere. The motion of hot materials rising while the cooler materials sink and this causes granulation. Granulation also known as the mottled appearance is the dark regions and that is how the energy inside the sun is transferred out. 7. When looking at the sun you would imagine that the surface would be boiling. But since the surface of the sun is actually pretty cool it causes very few hydrogen atoms to have electrons in the excited states

Rigel and Deimos. Rigel, the God of stars, and Deimos, the God of the planets, battled for the right to claim the sun as their own. The sun was not just another empty void waiting to be filled with life, it was the most beautiful thing ever to exist. The radiant sun was in fact a woman an oddity. Her name was Melea. Rigel wanted the sun as a star and Deimos wanted it as a planet. Deimos wanted to cripple Rigels power so he created a black hole to absorb his stars and temporarily weaken his brother

All stars are born in nebulae. Nebulae are huge cold clouds of gas and dust. The formation of protostars requires huge clouds of gas and dust collapsing under gravitational forces. The stage of a protostar last an approximate of 50 million years. As stars grow, they also expand. When the core runs out of hydrogen and helium, the contacts and outer layers of the core expand, become cold, and the brightness decreases. This is also known as a Red Giant or a Red Supergiant which mainly consists of the

properties of stars. The method was improved in 1913 by American astronomer Henry Norris-Russell. Today the diagram is known as a Hertzsprung-Russell diagram, or simply an H-R diagram. This diagram is very significant tool for studying the evolution of stars. A H-R diagram plots a star’s luminosity against its temperature or color. The vertical axis is the stars luminosity relative to the sun (1 L0 is the luminosity of our sun) and the horizontal axis plots the temperature or color of a star. The highest

STARS – THE BIRTH OF STARS A star is a luminous sphere of plasma held together by its own gravity. It is a burning ball of gas Fig 1.1 Nebulae (A stellar nursery) (Chandra, Hubble, and Spitzer image NGC 1952) Stars are born or formed in Nebulae or Nebulas are huge interstellar clouds, in inter-galactic space, of dust and gas (mostly hydrogen H2) There is an abundance of such stellar nurseries in the arms of Spiral Galaxies. The birth of star occurs many atoms of light elements are compressed

The life cycle of a star is dependent on its mass. The larger the mass, the quicker it will die out, whereas stars which are no more than half the size of our Sun can live up to hundreds of billion years. However no matter how large the star is, they all begin their lives in a nursery known as a molecular cloud. A molecular cloud is a giant condensation of dust and molecular gas. They are regions of relatively dense interstellar gas and dust with hydrogen molecules as well as carbon and silicate

planets and asteroids surrounding it. Now this doesn't mean the sun is the biggest star there is possible, in fact the sun is just an average star. The average stars are dwarf stars, and the sun is a yellow dwarf star. Now we have dwarf planets like Pluto, compare Pluto to the Earth, now compare the Earth to the sun. That just leaves the question how big is a star? The sun only looks bigger to us than most stars because we are the 3rd planet

THE LIFE CYCLE OF THE STARS The Life Cycle of the Stars SCI 350 January 12, 2006 Abstract Stars come in many definitions and in many forms today, there are Rock Stars, Movie Stars, There is even star shaped cereal for children but the most important stars we have our in our solar system. Lets look at the stars in the sky and space their origins of birth there attributes of life and there accolades in death. The Life Cycle of the Stars To discover the stars origin we look for its definition

question “What is the chemical difference between a star and a planet?” A big difference between stars and planets is mass and size. Stars are massive balls of gas with pressure inside them that causes a nuclear reaction, which makes them bright and hot. A object would have to have 80 times the mass of Jupiter to have the nuclear reaction in its core. Making planet's not big enough to be a star. Although there is a huge difference in size and mass, many stars and planets are similar. Many planets are rocky

fuse, thats the energy source of a star. The star switches and begins to shine. Inside every newborn star, hydrogen atoms are fused together to make helium. This process is called fusion and it creates the energy of every star. A star is a luminous sphere of gas producing its own heat and light by nuclear reactions (nuclear fusion). What happens to a star during the rest of its life depends of how massive