Measuring Stars
... • A blue spectral class B8 star with a diameter of 3 solar diameters and red-yellow spectral class K2 star of about 3.5 solar diameters are in very close orbit around each other. • They are so close together that tidal forces are distorting the shape of the K2 star, into a teardrop shape. ...
... • A blue spectral class B8 star with a diameter of 3 solar diameters and red-yellow spectral class K2 star of about 3.5 solar diameters are in very close orbit around each other. • They are so close together that tidal forces are distorting the shape of the K2 star, into a teardrop shape. ...
WHERE DO WE SEARCH FOR LIFE IN THE UNIVERSE?
... Consider Stellar Luminosity (not too high, not to low) Consider Stellar Mass (not to high, not too ...
... Consider Stellar Luminosity (not too high, not to low) Consider Stellar Mass (not to high, not too ...
Unit 8: Astronomy
... Sun than Neptune Has one moon that is more than half it’s size – very unusual ...
... Sun than Neptune Has one moon that is more than half it’s size – very unusual ...
Universe 19
... into the negative numbers for really bright objects and into the 20s and 30s for really dim objects. • Absolute magnitude, on the other hand is how bright a star would look if it were 10 pc away. ...
... into the negative numbers for really bright objects and into the 20s and 30s for really dim objects. • Absolute magnitude, on the other hand is how bright a star would look if it were 10 pc away. ...
Ch. 15 Notes
... dense that the speed needed to escape it is faster than the speed of light. This means that any object that gets too close would not be able to escape. • The existence of black holes was first proposed by Albert Einstein as a result of his Theory of General Relativity. He called them “dark stars”, b ...
... dense that the speed needed to escape it is faster than the speed of light. This means that any object that gets too close would not be able to escape. • The existence of black holes was first proposed by Albert Einstein as a result of his Theory of General Relativity. He called them “dark stars”, b ...
- Stevenson High School
... the Sun places different regions of the sky in our nighttime view. A chart of the night sky will map the locations of the stars; a star wheel will let us know which stars will be visible during any time of night for any time of year. Position the star wheel so that the side with the title (not the i ...
... the Sun places different regions of the sky in our nighttime view. A chart of the night sky will map the locations of the stars; a star wheel will let us know which stars will be visible during any time of night for any time of year. Position the star wheel so that the side with the title (not the i ...
Daynightseasonsstars-1
... 1. What is changing at the same (annual) timescale that we are observing the changing zodiac? 2. Do the constellations appear to change positions in the night sky as Earth travels around our Sun throughout the year? 3. Are the constellations themselves moving? 4. What causes this apparent change in ...
... 1. What is changing at the same (annual) timescale that we are observing the changing zodiac? 2. Do the constellations appear to change positions in the night sky as Earth travels around our Sun throughout the year? 3. Are the constellations themselves moving? 4. What causes this apparent change in ...
The future sun March 18 −
... Lifetime=21gallons/(3gallons/hr)=7hr Lifetime=30M¤/ 200,000L¤ =Lifetime¤/7000 =1.3Myr Human scale = 4days ...
... Lifetime=21gallons/(3gallons/hr)=7hr Lifetime=30M¤/ 200,000L¤ =Lifetime¤/7000 =1.3Myr Human scale = 4days ...
1 - Physics
... 6. Which takes longer to form, stars the mass of the sun or stars ten times the mass of the sun? • A) ten times the mass of the sun • B) both take the same length of time to form • C) mass of the sun • D) the formation rates will depend on the rotation of the gas clouds 7. Of the following, which i ...
... 6. Which takes longer to form, stars the mass of the sun or stars ten times the mass of the sun? • A) ten times the mass of the sun • B) both take the same length of time to form • C) mass of the sun • D) the formation rates will depend on the rotation of the gas clouds 7. Of the following, which i ...
Stellar and Atomic Spectra
... electrons is not true? A) Electrons orbit the nucleus rather like planets orbiting the Sun. B) Within an atom, an electron can have only particular energies. C) Electrons can jump between energy levels in an atom only if they receive or give up an amount of energy equal to the difference in energy b ...
... electrons is not true? A) Electrons orbit the nucleus rather like planets orbiting the Sun. B) Within an atom, an electron can have only particular energies. C) Electrons can jump between energy levels in an atom only if they receive or give up an amount of energy equal to the difference in energy b ...
Spectroscopic Investigation of Companion Stars in Herbig
... Anne Sweet1, B. Rodgers2, G. Doppmann2, N. van der Bliek3, S. Thomas3, M. J. Cordero1 1CTIO REU, Chile, 2Gemini Observatory, Chile, 3CTIO, Chile. Abstract Herbig AeBe (HAEBE) binary systems are good environments for the study of pre-main sequence stellar evolution in companion stars whose mass may b ...
... Anne Sweet1, B. Rodgers2, G. Doppmann2, N. van der Bliek3, S. Thomas3, M. J. Cordero1 1CTIO REU, Chile, 2Gemini Observatory, Chile, 3CTIO, Chile. Abstract Herbig AeBe (HAEBE) binary systems are good environments for the study of pre-main sequence stellar evolution in companion stars whose mass may b ...
Homework problems for Quiz 2: AY5 Spring 2015
... In the outer parts of the solar system where it is cold enough for gas clouds to collapse.. In molecular clouds where the temperature get down to 10k None of these is correct. 6. Label the following True (T) or False (F) More massive stars have lower temperatures in their cores The reason main-seque ...
... In the outer parts of the solar system where it is cold enough for gas clouds to collapse.. In molecular clouds where the temperature get down to 10k None of these is correct. 6. Label the following True (T) or False (F) More massive stars have lower temperatures in their cores The reason main-seque ...
01.05.10 Centuries-Old Star Mystery Coming to a Close For almost
... nature of the stars. In the case of Epsilon Aurigae, what could have been a simple calculation has instead left astronomers endlessly scratching their heads. Certain aspects of the event, for example the duration of the eclipse, and the presence of "wiggles" in the brightness of the system during th ...
... nature of the stars. In the case of Epsilon Aurigae, what could have been a simple calculation has instead left astronomers endlessly scratching their heads. Certain aspects of the event, for example the duration of the eclipse, and the presence of "wiggles" in the brightness of the system during th ...
Astronomy Quiz 12 “Stars
... B. yellow dwarfs / red supergiant D. red dwarfs / blue supergiant _____3. The actual 3D motion of stars relative to each other in a rotating and swirling galaxy is called __ motion. A. radial B. proper C. real D. transverse _____4. How far away is a star that shows 1” (1 arc second) of parallax moti ...
... B. yellow dwarfs / red supergiant D. red dwarfs / blue supergiant _____3. The actual 3D motion of stars relative to each other in a rotating and swirling galaxy is called __ motion. A. radial B. proper C. real D. transverse _____4. How far away is a star that shows 1” (1 arc second) of parallax moti ...
Star Formation, HR Diagram, and the Main Sequence (Professor
... Stars do not form isolated, but in large groups, called Open Star Clusters . Our own Sun is part of an open cluster than includes other nearby stars such as Alpha Centauri and Barnard's star. ...
... Stars do not form isolated, but in large groups, called Open Star Clusters . Our own Sun is part of an open cluster than includes other nearby stars such as Alpha Centauri and Barnard's star. ...
B. protostar - University of Maryland Astronomy
... 24. Which of the following changes occurs immediately after the development of a hydrogen burning shell inside a star like the Sun? A. The star collapses to a neutron star and then it blows up. B. The star ejects a planetary nebula and new planets form. C. The star emits strongly in the infrared and ...
... 24. Which of the following changes occurs immediately after the development of a hydrogen burning shell inside a star like the Sun? A. The star collapses to a neutron star and then it blows up. B. The star ejects a planetary nebula and new planets form. C. The star emits strongly in the infrared and ...
Question: Fossilized footprints of Coelophysis
... boundary between Earth’s mantle and core? Key words: temperature, mantle, core, star Picking the right table: The Inferred Properties of Earth’s Interior table (p. NY28) has a diagram of Earth’s interior, along with graphs that show how pressure and temperature change with depth. From this table, yo ...
... boundary between Earth’s mantle and core? Key words: temperature, mantle, core, star Picking the right table: The Inferred Properties of Earth’s Interior table (p. NY28) has a diagram of Earth’s interior, along with graphs that show how pressure and temperature change with depth. From this table, yo ...
Stars
... reveals that about 90% of all stars lie along a smooth diagonal curve called the main sequence with hot, luminous stars in the upper left and cool, dim stars in the lower right. • Not all stars fall on the main sequence. Stars below the main sequence are called white dwarfs and those above it ...
... reveals that about 90% of all stars lie along a smooth diagonal curve called the main sequence with hot, luminous stars in the upper left and cool, dim stars in the lower right. • Not all stars fall on the main sequence. Stars below the main sequence are called white dwarfs and those above it ...
PPT file
... Eventually, an intermediate mass star expands into a red giant and sheds much of its material into space It then collapses in on itself and slowly shrinks into a small, dim white dwarf As it cools more, it turns into a black dwarf, a dense, dark body made up mostly of carbon and oxygen ...
... Eventually, an intermediate mass star expands into a red giant and sheds much of its material into space It then collapses in on itself and slowly shrinks into a small, dim white dwarf As it cools more, it turns into a black dwarf, a dense, dark body made up mostly of carbon and oxygen ...
Starry Night¨ Times - October 2008
... M41 (also known as the Little Beehive) is a fine open cluster lying about 2,000 lightyears from the back of your eyeball. It has about 25 bright stars spattered across a field about the size of a full moon; in reality, they're spread over an area 20 lightyears in width. Bright enough to be sometimes ...
... M41 (also known as the Little Beehive) is a fine open cluster lying about 2,000 lightyears from the back of your eyeball. It has about 25 bright stars spattered across a field about the size of a full moon; in reality, they're spread over an area 20 lightyears in width. Bright enough to be sometimes ...
The classification of stellar spectra
... but some don’t (e.g., the Sun) - some show strong lines of Ca, Fe, Na - some show lines from molecules such as TiO, MgH ...
... but some don’t (e.g., the Sun) - some show strong lines of Ca, Fe, Na - some show lines from molecules such as TiO, MgH ...
Astronomy Assignment #1
... 1. What fundamental property of stars determines their evolution? Mass is the fundamental property that determines the evolution of stars. The mass of a star determines the central pressure of the star which in turn is the leading term in establishing the luminosity of the star which in turn determi ...
... 1. What fundamental property of stars determines their evolution? Mass is the fundamental property that determines the evolution of stars. The mass of a star determines the central pressure of the star which in turn is the leading term in establishing the luminosity of the star which in turn determi ...
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.