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... a spiral arm, 30,000 light-years from the center It takes 250 Million years for the Sun to complete one orbit ...
... a spiral arm, 30,000 light-years from the center It takes 250 Million years for the Sun to complete one orbit ...
The Hertzsprung-Russell Diagram
... sequence star. Hint: plot both stars on an HR diagram and note how their temperatures and luminosities compare. ...
... sequence star. Hint: plot both stars on an HR diagram and note how their temperatures and luminosities compare. ...
Orion - CSIC
... Orion, the Hunter, is one of the few constellations that looks like what it is supposed to be (see picture). It is not hard to envision a hunter holding a shield and a sword, defending himself against a charging Taurus the Bull. But the stars that make up Orion lie at very different distances from t ...
... Orion, the Hunter, is one of the few constellations that looks like what it is supposed to be (see picture). It is not hard to envision a hunter holding a shield and a sword, defending himself against a charging Taurus the Bull. But the stars that make up Orion lie at very different distances from t ...
RFS_multiple_choice_Dec8_Key
... with funny-looking names consisting of the capital letter "M" followed by a number. For example, the Pleiades star-cluster in Taurus is labeled "M45", and "M13" is the labelling for the Hercules Globular Cluster. And so it goes on right from "M1" to "M110". But tell me, what exactly does the letter ...
... with funny-looking names consisting of the capital letter "M" followed by a number. For example, the Pleiades star-cluster in Taurus is labeled "M45", and "M13" is the labelling for the Hercules Globular Cluster. And so it goes on right from "M1" to "M110". But tell me, what exactly does the letter ...
Friday, August 29
... The Trouble with Angles • Angular size of an object cannot tell us its actual size – depends on how far away it is • Sun and Moon have very nearly the same angular size (30' = ½) when viewed from Earth ...
... The Trouble with Angles • Angular size of an object cannot tell us its actual size – depends on how far away it is • Sun and Moon have very nearly the same angular size (30' = ½) when viewed from Earth ...
The Hertzsprung-Russell Diagram
... between brightness and temp. Hotter things are brighter Hotter temp = more energy is radiated. Bigger stars are brighter. Bigger surface area = more energy radiated. ...
... between brightness and temp. Hotter things are brighter Hotter temp = more energy is radiated. Bigger stars are brighter. Bigger surface area = more energy radiated. ...
Notes: Astronomy and Groups of Stars
... Characteristics of stars: a. Brightness (magnitude)- created by glowing gases. The energy that heats the gases is made from the NUCLEAR FUSION of 4 hydrogen atoms to form 1 helium atom. The helium has less matter than the 4 hydrogen, so the left over matter becomes HEAT ENERGY—makes stars glow ** ty ...
... Characteristics of stars: a. Brightness (magnitude)- created by glowing gases. The energy that heats the gases is made from the NUCLEAR FUSION of 4 hydrogen atoms to form 1 helium atom. The helium has less matter than the 4 hydrogen, so the left over matter becomes HEAT ENERGY—makes stars glow ** ty ...
How is a Star`s Color Related to Its temperature?
... How is a Star’s Color Related to Its temperature? On a clear night you have surely noticed that some stars are brighter than cthers. But stars also have different colors. Rigel is blue. and Betelgense is red. Capella and ore" Sun are yellow, in this activity you will make your own Hertzsprung-Russel ...
... How is a Star’s Color Related to Its temperature? On a clear night you have surely noticed that some stars are brighter than cthers. But stars also have different colors. Rigel is blue. and Betelgense is red. Capella and ore" Sun are yellow, in this activity you will make your own Hertzsprung-Russel ...
Constellation, Star, and Deep Sky Object
... system with a white dwarf and a supergiant which loses its outer gas layers to the white dwarf. A second, less common occurrence is a binary system with two white dwarfs that merge, sending the mass over the threshold. Type II – When a massive star consumes all of its fusion material and ends up wit ...
... system with a white dwarf and a supergiant which loses its outer gas layers to the white dwarf. A second, less common occurrence is a binary system with two white dwarfs that merge, sending the mass over the threshold. Type II – When a massive star consumes all of its fusion material and ends up wit ...
Ch. 25 Properties of Stars
... The more negative, the brighter and the more positive, the dimmer Astronomers estimate that there are 200-400 billion stars in our Milky Way Galaxy, but we can only see about 2,500 visible to the naked eye on Earth ...
... The more negative, the brighter and the more positive, the dimmer Astronomers estimate that there are 200-400 billion stars in our Milky Way Galaxy, but we can only see about 2,500 visible to the naked eye on Earth ...
Absolute Magnitude - School
... Imagine an object, such as a star, which emits light. As the light spreads out it becomes less intense. One can see from the diagram below that if a certain amount of light travels twice as far then it spreads out over an area four times as big. This means that it will be 1/4 of the intensity it was ...
... Imagine an object, such as a star, which emits light. As the light spreads out it becomes less intense. One can see from the diagram below that if a certain amount of light travels twice as far then it spreads out over an area four times as big. This means that it will be 1/4 of the intensity it was ...
Ch. 27 Stars & Galaxies
... What is your guess for the cause of the stellar motion shown in these photographs? ...
... What is your guess for the cause of the stellar motion shown in these photographs? ...
May 2017 - Museums Wellington
... Saturn, along with some of our brightest stars. Jupiter will be one of the first objects to appear, visible in the north east shortly after the Sun has set. Just to the right of Jupiter is Spica, the brightest star in the constellation of Virgo, and below, just above the horizon is orange coloured A ...
... Saturn, along with some of our brightest stars. Jupiter will be one of the first objects to appear, visible in the north east shortly after the Sun has set. Just to the right of Jupiter is Spica, the brightest star in the constellation of Virgo, and below, just above the horizon is orange coloured A ...
Unit 10 H-R Diagram Worksheet
... _______________________________________________________________ 9. About how many times brighter than the Sun is Betelgeuse? _________________________________ 10. If Betelgeuse is so bright, why does the Sun appear brighter to us? _____________________________________________________________ 11. Whi ...
... _______________________________________________________________ 9. About how many times brighter than the Sun is Betelgeuse? _________________________________ 10. If Betelgeuse is so bright, why does the Sun appear brighter to us? _____________________________________________________________ 11. Whi ...
The Ursa Major Moving Cluster, Collinder 285
... escaped due to mutual encounters, tidal forces of the Milky Way, or encounters with large interstellar clouds and other clusters. Now as they have left the cluster, their orbits around the Milky Way Galaxy's center is still similar to that of the cluster so that they have a common motion. All these ...
... escaped due to mutual encounters, tidal forces of the Milky Way, or encounters with large interstellar clouds and other clusters. Now as they have left the cluster, their orbits around the Milky Way Galaxy's center is still similar to that of the cluster so that they have a common motion. All these ...
CONSTELLATION CASSIOPEIA named after the
... It is easily recognizable due to its distinctive 'W' shape formed by five bright stars. It is bordered by Andromeda to the south, Perseus to the southeast, and Cepheus to the north. It is opposite the Big Dipper. In northern locations it is visible year-round and it can be seen even in low southern ...
... It is easily recognizable due to its distinctive 'W' shape formed by five bright stars. It is bordered by Andromeda to the south, Perseus to the southeast, and Cepheus to the north. It is opposite the Big Dipper. In northern locations it is visible year-round and it can be seen even in low southern ...
Properties of Stars and H
... There are 2 ways to measure brightness: • Apparent magnitude – when we use size, temperature, and distance to earth to calculate brightness. This is not a true measure because ...
... There are 2 ways to measure brightness: • Apparent magnitude – when we use size, temperature, and distance to earth to calculate brightness. This is not a true measure because ...
Sun, Star Types and Luminosity
... b. Energy comes from nuclear fusion as they convert Hydrogen to Helium. c. The sun is a typical Main Sequence star. d. Most stars (about 90%) are Main Sequence Stars. e. For these stars, the hotter, the brighter ...
... b. Energy comes from nuclear fusion as they convert Hydrogen to Helium. c. The sun is a typical Main Sequence star. d. Most stars (about 90%) are Main Sequence Stars. e. For these stars, the hotter, the brighter ...
Barred Spiral Galaxy
... • Large amounts of electrically charged gas are ejected suddenly from the Sun’s corona. ...
... • Large amounts of electrically charged gas are ejected suddenly from the Sun’s corona. ...
Notes- Stars
... Life span of a star depends on its size. – Very large, massive stars burn their fuel much faster than smaller stars – Their main sequence may last only a few hundred thousand years – Smaller stars will live on for billions of years because they burn their fuel much more slowly ...
... Life span of a star depends on its size. – Very large, massive stars burn their fuel much faster than smaller stars – Their main sequence may last only a few hundred thousand years – Smaller stars will live on for billions of years because they burn their fuel much more slowly ...
The Hertzsprung – Russell Diagram
... 4. List the four categories of information you can determine about a star by using the H-R Diagram? 5. If you know a star’s color, what other information can you determine? 6. What is the relationship between the X and Y values for main sequence stars? 7. 90% of stars belong to which category? 8. Wh ...
... 4. List the four categories of information you can determine about a star by using the H-R Diagram? 5. If you know a star’s color, what other information can you determine? 6. What is the relationship between the X and Y values for main sequence stars? 7. 90% of stars belong to which category? 8. Wh ...
Calculating Main Sequence Lifetimes
... stars having larger magnitudes. Don’t confuse the relative magnitude with absolute magnitude. The relative magnitude measures the brightness of a star as it appears in the sky and it depends on the brightness and on the distance; if we put a star at the distance of 10 Parsec (33 year light), its mag ...
... stars having larger magnitudes. Don’t confuse the relative magnitude with absolute magnitude. The relative magnitude measures the brightness of a star as it appears in the sky and it depends on the brightness and on the distance; if we put a star at the distance of 10 Parsec (33 year light), its mag ...
Diapositiva 1
... the brightest star Theta-1 Orionis C powers the complex star forming region's entire visible glow. About three million years old, the Orion Nebula Cluster was even more compact in its younger years and a recent dinamical study indicates that runaway stllar colosion at an earlier age may have formed ...
... the brightest star Theta-1 Orionis C powers the complex star forming region's entire visible glow. About three million years old, the Orion Nebula Cluster was even more compact in its younger years and a recent dinamical study indicates that runaway stllar colosion at an earlier age may have formed ...