are called nebulae. These cosmic clouds are the fundamental building blocks of our universe. They contain the elements that are needed for stars to be formed. Known as the flowers of the universe they are some of the most beautiful sights there is with their swirling rich colors and bright lights. The reason for these bright rich colors is because of the stars inside of the nebula‚ the colors are apparent because of the different elements that make up the nebula. Most common nebula are composed of
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_________ spectrum. ATOMIC SPECTRUM 3. One name that has been given the mysterious force apparently responsible for driving the acceleration of the universe’s expansion is _________. DARK ENERGY 4. The area on the H-R diagram where “normal” stars can be found is known as the _________. MAIN SEQUENCE 5. Although Copernicus’ model of the solar system correctly placed the sun at the center‚ it still provided inaccurate predictions because it maintained that the planets’ orbits were _________
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rest. About one million Earths could fit inside it. The Sun is just an ordinary star‚ and that’s true because there are many others similar to it but there are smaller stars than larger ones; The Sun is on the top 10% by mass. The Sun is about 70% hydrogen and about 20% helium. Everything else like metals is about less than 2%. This changes as the Sun turns hydrogen into helium in its core. The radius of the giant star is 432‚288 miles‚ while the mass is 1.982 x 1030 kilograms. Atmosphere
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CHRISTIAN HUYGENS Huygens was a Dutch scientist. He lived from 1629-1695. He proposed the earliest theory about the nature of light‚ a phenomena that puzzled scientists for hundreds of years. His improvements on the telescope allowed him to make the first observations of Saturn’s rings and to discover its moon‚ Titan. CARL SAGAN Sagan was an American astronomer. He lived from 1934-1996. He may not have been a great scientist in comparison to others‚ but he is one of the most
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a spiral galaxy‚ Andromeda is characterized by arched lanes of stars and many glowing interstellar clouds‚ which always appears as spiral arms to astronomers. This supports the fact that Andromeda is not an open or globular cluster in what is known as our own Milky Way galaxy. Andromeda is the biggest by volume what astronomers
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eye‚ it appears to be a new star. Modern technology‚ however‚ has pieced together a clearer image‚ “a bubble-shaped shroud of gas and dust‚ 14 light-years wide and expanding at 6 million kilometers per hour (4 million mph)” (Hill). But what‚ exactly‚ makes a supernova? What is a supernova? The word itself is easy enough to understand with a basic knowledge of the words that make it up‚ a combination of understood “super”‚ (very large or powerful)‚ and “nova”‚ (a star that suddenly increases its
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so far away‚ we cannot visit them and find out what they are made of‚ what temperature they are and so on. The way that scientists decide what a distant star is made of‚ how hot it is and other things is to study the light that the star gives off. The study of light is called spectrography. By making careful observations of the light that a star gives off‚ or the light that is reflected from a planet‚ scientists can find out a lot of information about
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the sun‚ moon‚ stars‚ planets‚ comets‚ gas‚ galaxies‚ gas‚ dust and other non-Earthly bodies and phenomena - See more at:
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nearby stars is as predicted from theoretical studies based on hydrogen bomb research. 2. The speed of light indicates how fast light can travel in a vacuum. (6 points) 1. A. What star is closest to our solar system? (3 points)The Alpha Centauri system is located 1.34 parsecs or 4.37 light years from the Sun‚ making it the closest star system to our Solar System. B. If you could travel at the speed of light‚ how long would it take to travel from our solar system to the nearest star? (3 points)
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Astronomer Essay 4/12/2011 JMJ Dr. Debra Fischer – Astronomer An astronomer is an astrophysicist who studies stars‚ planets and galaxies. Astronomers use the laws of physics to investigate the matter and energy of celestial bodies. They then apply the research findings to solve space navigation and communication problems and even discover new planets and stars. In 1512‚ Copernicus theorized that the planets orbit the sun and the race to uncover new planets began. Historically‚ most
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