Stellar evolution, II
... mass of Sun = 2 X 1030 kg 0.007 of mass of hydrogen is converted into energy 0.1 of mass of Sun (the core) is converted in He Total energy liberated by Sun during main sequence phase is (2 X 1030) X 0.007 X 0.1 X c2 = 1.26 X 1044 J. Luminosity of Sun = 3.8 X 1026 Joules/sec ...
... mass of Sun = 2 X 1030 kg 0.007 of mass of hydrogen is converted into energy 0.1 of mass of Sun (the core) is converted in He Total energy liberated by Sun during main sequence phase is (2 X 1030) X 0.007 X 0.1 X c2 = 1.26 X 1044 J. Luminosity of Sun = 3.8 X 1026 Joules/sec ...
HS-ESS1-2 - Trimble County Schools
... A. What are Binary Stars? 1) How do most of them appear from Earth? 2) How are Astonomers able to identify them? B. What are Doppler Shifts? 1) Compare/Contrast blueshift and redshift. 2) How does speed affect it? C. What are two units of measure for long stellar distances? D Describe the apparent s ...
... A. What are Binary Stars? 1) How do most of them appear from Earth? 2) How are Astonomers able to identify them? B. What are Doppler Shifts? 1) Compare/Contrast blueshift and redshift. 2) How does speed affect it? C. What are two units of measure for long stellar distances? D Describe the apparent s ...
Binary Star Systems Discussion Points 1. What characteristic of a
... c) One of the stars is too small or too dim to be able to see it against the glare of the larger, brighter star. 7. The spectroscopic lines periodically split and recombine. 8. Mizar in Ursa Major 9. Dubhe in Ursa Major, Capella in Auriga, Regulus in Leo 10. Eclipsing binary star 11. They are edge-o ...
... c) One of the stars is too small or too dim to be able to see it against the glare of the larger, brighter star. 7. The spectroscopic lines periodically split and recombine. 8. Mizar in Ursa Major 9. Dubhe in Ursa Major, Capella in Auriga, Regulus in Leo 10. Eclipsing binary star 11. They are edge-o ...
The “Big Bang” Theory
... • This was due to gravity • The galaxies, stars and planets formed from these clumps of dust and gas • There are billions of galaxies in the universe and each galaxy consists of billions of stars ...
... • This was due to gravity • The galaxies, stars and planets formed from these clumps of dust and gas • There are billions of galaxies in the universe and each galaxy consists of billions of stars ...
Earth Science – Quiz 2
... 19. The length of daylight on the Moon is about ________. A) 24 hours B) 48 hours C) two weeks D) one month E) one year 20. Compared to Earth's atmosphere, the atmosphere of Mars has surface pressures that are ________. A) 3 times those on Earth; major gases are water vapor and carbon dioxide B) 0.1 ...
... 19. The length of daylight on the Moon is about ________. A) 24 hours B) 48 hours C) two weeks D) one month E) one year 20. Compared to Earth's atmosphere, the atmosphere of Mars has surface pressures that are ________. A) 3 times those on Earth; major gases are water vapor and carbon dioxide B) 0.1 ...
Old Final
... One page of notes is allowed. Calculators are NOT allowed. Fill in your name and ID number on the bubble sheet. Use a #2 pencil on the bubble sheet. Make your bubbles dark and neat. These tests will be available for pick up in my office M-F, 10am-4pm after July 15th and until July 22nd. After this p ...
... One page of notes is allowed. Calculators are NOT allowed. Fill in your name and ID number on the bubble sheet. Use a #2 pencil on the bubble sheet. Make your bubbles dark and neat. These tests will be available for pick up in my office M-F, 10am-4pm after July 15th and until July 22nd. After this p ...
Final Exam Earth science
... Main sequence stars. Hertzsprung-Russell diagram, a graph used by astronomers. It shows a relationship between surface temperature and brightness. Most stars (90%) form a diagonal band called the main sequence stars. In the main sequence, surface temperature increases as brightness increases. Our su ...
... Main sequence stars. Hertzsprung-Russell diagram, a graph used by astronomers. It shows a relationship between surface temperature and brightness. Most stars (90%) form a diagonal band called the main sequence stars. In the main sequence, surface temperature increases as brightness increases. Our su ...
Chapter 21 Study Guide
... 12. A building that contains one or more telescopes is called an _____________________________. 13. Name one reason why astronomers have built large telescopes on the tops of mountains. _____________________________________________________________________________________ 14. The Hubble Space Telesco ...
... 12. A building that contains one or more telescopes is called an _____________________________. 13. Name one reason why astronomers have built large telescopes on the tops of mountains. _____________________________________________________________________________________ 14. The Hubble Space Telesco ...
S90 U5 T3 Notes - Cochrane High School
... Don’t forget! Wavelength measures the distance between two high or low points on a wave. Frequency is the measure of how many waves pass in a given time period. ...
... Don’t forget! Wavelength measures the distance between two high or low points on a wave. Frequency is the measure of how many waves pass in a given time period. ...
White Dwarf star. Are
... So a star has a life similar to a battery that cannot be recharged. When the battery runs out of energy, it is finished. Our sun will run out of energy and it will be finished too. ...
... So a star has a life similar to a battery that cannot be recharged. When the battery runs out of energy, it is finished. Our sun will run out of energy and it will be finished too. ...
Chapter 29 Notes
... distance to stars • Constellations: Groups of stars in the same part of the sky • Clusters: groups of stars bound together by gravity • Binaries: two stars that orbit a common center of mass ...
... distance to stars • Constellations: Groups of stars in the same part of the sky • Clusters: groups of stars bound together by gravity • Binaries: two stars that orbit a common center of mass ...
The Life of a Star
... life of a low-mass star and that of a star 10 times the Sun’s mass. Low-mass stars cool down and swell up into a red giant. Outer layers drift away and the star shrinks to become a white dwarf which will cool and fade away. High-mass stars swells into a red supergiant which undergoes a supernova. Th ...
... life of a low-mass star and that of a star 10 times the Sun’s mass. Low-mass stars cool down and swell up into a red giant. Outer layers drift away and the star shrinks to become a white dwarf which will cool and fade away. High-mass stars swells into a red supergiant which undergoes a supernova. Th ...
Lecture 14 - Center for Astrophysics and Space Astronomy CASA
... It heats very rapidly. In just a few seconds it reaches >100,000,000K. Carbon and Oxygen ignite and burn by fusion to even heavier elements. The whole star explodes in a frenzy of nuclear burning. ...
... It heats very rapidly. In just a few seconds it reaches >100,000,000K. Carbon and Oxygen ignite and burn by fusion to even heavier elements. The whole star explodes in a frenzy of nuclear burning. ...
May 2016 night sky chart
... The star chart shows the stars and constellations visible in the night sky for Sydney, Melbourne, Canberra, Hobart and Adelaide for March 2015 at about 9 pm (summer time) and at about 8 pm (local standard time) for Perth and Brisbane. For Darwin and similar locations the chart will still apply, but ...
... The star chart shows the stars and constellations visible in the night sky for Sydney, Melbourne, Canberra, Hobart and Adelaide for March 2015 at about 9 pm (summer time) and at about 8 pm (local standard time) for Perth and Brisbane. For Darwin and similar locations the chart will still apply, but ...
Star Formation
... gravity. With low temperature they don’t fly apart again. – Contracting material forms one or more centers – The contracting material begins to radiate – These are protostars, called T Tauri stars (G, K, M). ...
... gravity. With low temperature they don’t fly apart again. – Contracting material forms one or more centers – The contracting material begins to radiate – These are protostars, called T Tauri stars (G, K, M). ...
Test#4
... a) the mean distance from the Earth to the Sun b) the distance to the closest star c) 3.26 light years d) the size of the Earth’s orbit 3. The direction in the sky that our solar system is moving toward is called the a) Apex b) Solar Peak c) Solar asymptote d) stellar destination 4. Which is brighte ...
... a) the mean distance from the Earth to the Sun b) the distance to the closest star c) 3.26 light years d) the size of the Earth’s orbit 3. The direction in the sky that our solar system is moving toward is called the a) Apex b) Solar Peak c) Solar asymptote d) stellar destination 4. Which is brighte ...
Chapter 13
... The Fate of Our Sun and the End of Earth • Sun will expand to a Red giant in ~ 5 billion years • Expands to ~ Earth’s radius • Earth will then be incinerated! • Sun may form a planetary nebula (but uncertain) • Sun’s C,O core will become a white dwarf ...
... The Fate of Our Sun and the End of Earth • Sun will expand to a Red giant in ~ 5 billion years • Expands to ~ Earth’s radius • Earth will then be incinerated! • Sun may form a planetary nebula (but uncertain) • Sun’s C,O core will become a white dwarf ...
Lecture 22 - Star Formation from Molecular Clouds
... • We understand the physics of these processes (at least partially) • We believe the Sun formed like this. • What characteristic of the solar system can we see that is an indicator of the processes of contraction, jet formation, accretion disk formation, etc? ...
... • We understand the physics of these processes (at least partially) • We believe the Sun formed like this. • What characteristic of the solar system can we see that is an indicator of the processes of contraction, jet formation, accretion disk formation, etc? ...
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.