Constants and Equations
... a) AM CVn stars are binary systems with an orbital period of less than 65 minutes. b) AM CVn stars may produce a type II supernova after the white dwarf reaches a critical mass. c) AM CVn stars are sources of gravitational waves. d) AM CVn stars are binary systems where a white dwarf accretes mass f ...
... a) AM CVn stars are binary systems with an orbital period of less than 65 minutes. b) AM CVn stars may produce a type II supernova after the white dwarf reaches a critical mass. c) AM CVn stars are sources of gravitational waves. d) AM CVn stars are binary systems where a white dwarf accretes mass f ...
Measuring the Stars
... The spectroscopic parallax calculation can be misleading if the star is not on the main sequence. The width of spectral lines can be used to define luminosity classes: ...
... The spectroscopic parallax calculation can be misleading if the star is not on the main sequence. The width of spectral lines can be used to define luminosity classes: ...
The Hertzsprung-Russell Diagram
... We see that the H-R Diagram is an extremely useful way to follow the changes that take place as a star evolves. Most stars are on the Main Sequence because that is where stars spend most of their lives, burning hydrogen to helium through nuclear reactions. As stars live out their lives, changes in t ...
... We see that the H-R Diagram is an extremely useful way to follow the changes that take place as a star evolves. Most stars are on the Main Sequence because that is where stars spend most of their lives, burning hydrogen to helium through nuclear reactions. As stars live out their lives, changes in t ...
Science 9 – Space Exploration
... 12. A star has a definite life cycle. The first stage in the star’s formation is called A. nebulae B. dwarf C. massive D. protostar 13. At the end of the life cycle of a star it explodes in a catastrophic event called a… A. massive B. supergiant C .black hole D. supernova 14. Astronomers are discove ...
... 12. A star has a definite life cycle. The first stage in the star’s formation is called A. nebulae B. dwarf C. massive D. protostar 13. At the end of the life cycle of a star it explodes in a catastrophic event called a… A. massive B. supergiant C .black hole D. supernova 14. Astronomers are discove ...
Astronomy 101 Section 4
... Our tour continues with a visit to the nearest galaxies - here the Large Magellanic Cloud. ...
... Our tour continues with a visit to the nearest galaxies - here the Large Magellanic Cloud. ...
Star Gazing
... State the magnitude scale for stars. Given a star’s magnitude, identify if it is bright or faint. Identify the first four Greek letters. For what do astronomers use them? Define rotation and revolution as used by astronomers. Use them correctly when describing the motion of Earth, other planets, Sun ...
... State the magnitude scale for stars. Given a star’s magnitude, identify if it is bright or faint. Identify the first four Greek letters. For what do astronomers use them? Define rotation and revolution as used by astronomers. Use them correctly when describing the motion of Earth, other planets, Sun ...
Fun Facts: Sunshine
... The sun is actually a star. It is the closest star to earth, which explains why it looks so big! Without the sun, there would be no heat or light on earth. This means there would be no life either. It takes 8 minutes for light to travel from the sun to the earth. ...
... The sun is actually a star. It is the closest star to earth, which explains why it looks so big! Without the sun, there would be no heat or light on earth. This means there would be no life either. It takes 8 minutes for light to travel from the sun to the earth. ...
Ordinary Stars - Edgewood High School
... Color = yellow Example: The Sun Type K Star: 3,500 - 5,000 K Color = Red Example: Aldebaran Type M Star: < 3,500 K Color = Red Example: Betelgeuse ...
... Color = yellow Example: The Sun Type K Star: 3,500 - 5,000 K Color = Red Example: Aldebaran Type M Star: < 3,500 K Color = Red Example: Betelgeuse ...
Stellar Evolution Test Answers
... 1. When the light from a distant galaxy is distorted by a black hole, the resulting image is a ring. We call this a) the photon sphere b) the event horizon c) gravitational lensing d) the cosmological principle 2. Once you cross the ____________________, there is no going back…light can no longer es ...
... 1. When the light from a distant galaxy is distorted by a black hole, the resulting image is a ring. We call this a) the photon sphere b) the event horizon c) gravitational lensing d) the cosmological principle 2. Once you cross the ____________________, there is no going back…light can no longer es ...
Name_______________________Period_________Date
... Star contracts to normal size when helium is used up Carbon core left over, White dwarf remains 2. What is the difference between a constellation, binary star, and a star cluster? Binary Star •Cluster •Constellation Group of stars that form Group of stars Two stars that are a pattern in the sky ...
... Star contracts to normal size when helium is used up Carbon core left over, White dwarf remains 2. What is the difference between a constellation, binary star, and a star cluster? Binary Star •Cluster •Constellation Group of stars that form Group of stars Two stars that are a pattern in the sky ...
PHYSICS 113 Practice Questions #2
... Why are astronom ers much more interested in the luminosity of a star than its apparent brightness? a. because luminosity can be measured exactly, but apparent brightness can only be roughly estimated b. because the luminosity tells us how bright a star really is, while apparent brightness only tell ...
... Why are astronom ers much more interested in the luminosity of a star than its apparent brightness? a. because luminosity can be measured exactly, but apparent brightness can only be roughly estimated b. because the luminosity tells us how bright a star really is, while apparent brightness only tell ...
Nebula – • The most abundant element in the universe is hydrogen
... Eventually, the temperature inside a protostar becomes hot enough (about 10,000,000°C) for nuclear fusion reactions to begin converting hydrogen into helium. ...
... Eventually, the temperature inside a protostar becomes hot enough (about 10,000,000°C) for nuclear fusion reactions to begin converting hydrogen into helium. ...
the stars
... Stars have different colors and luminosities. Following this tutorial we will learn what star luminosity and color are, and which information about stellar evolution we can obtain from them. 2 Stars: magnitude and color Looking at the sky with naked eye most stars appear of the same color. We see st ...
... Stars have different colors and luminosities. Following this tutorial we will learn what star luminosity and color are, and which information about stellar evolution we can obtain from them. 2 Stars: magnitude and color Looking at the sky with naked eye most stars appear of the same color. We see st ...
Astronomy Tour
... composed of frozen water and dust. As they approach the Sun they melt and leave a stream of water vapor and dust that is a “tail” Scientists believe that these originate from a large region filled with comet cores called the Oort cloud. ...
... composed of frozen water and dust. As they approach the Sun they melt and leave a stream of water vapor and dust that is a “tail” Scientists believe that these originate from a large region filled with comet cores called the Oort cloud. ...
Hertzsprung-Russell Diagram
... but the letters were rearranged. In order of decreasing temperatures, the stellar classification is now: O, B, A, F, G, K, M. Or an easy way to ...
... but the letters were rearranged. In order of decreasing temperatures, the stellar classification is now: O, B, A, F, G, K, M. Or an easy way to ...
mass per nucleon
... main sequence star (core Hydrogen burning) core Hydrogen exhausted (sub-giant) shell Hydrogen burning (red giant) core Helium burning (Helium Flash) shell Helium burning (double-shell burning red giant) planetary nebula white dwarf ...
... main sequence star (core Hydrogen burning) core Hydrogen exhausted (sub-giant) shell Hydrogen burning (red giant) core Helium burning (Helium Flash) shell Helium burning (double-shell burning red giant) planetary nebula white dwarf ...
Constellations
... • The constellations that lie along the ecliptic are called the zodiac. – 12 constellations ...
... • The constellations that lie along the ecliptic are called the zodiac. – 12 constellations ...
Lecture10
... To determine stellar mases we rely on binary star systems. As seen from Earth, the two stars that make up this binary system are separated by less than 1/3 arcsecond. For simplicity, the diagram shows one star as remaining stationary; in reality, both stars move around their common center of mass ...
... To determine stellar mases we rely on binary star systems. As seen from Earth, the two stars that make up this binary system are separated by less than 1/3 arcsecond. For simplicity, the diagram shows one star as remaining stationary; in reality, both stars move around their common center of mass ...
Astronomy 170: Aug. 24 10am class
... • If you didn’t get the honors section instructions, get them from Megan. • We increased the enrollment limit for the honors section, Section 3. If you are in Section 2 and want honors credit for this class, you must fill out a change of section form and have Prof. Bechtold sign it. ...
... • If you didn’t get the honors section instructions, get them from Megan. • We increased the enrollment limit for the honors section, Section 3. If you are in Section 2 and want honors credit for this class, you must fill out a change of section form and have Prof. Bechtold sign it. ...
Organize Your Space PowerPoint.
... of stars. They are often located in a spherical halo around galaxies. ...
... of stars. They are often located in a spherical halo around galaxies. ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.