Sample final exam
... 15. Draw the Hertzsprung-Russell (H-R) diagram below, showing: • labels and units for both axes • the position of the Sun currently (should line up with marks on both axes) • the path of the Sun’s evolution from protostar to main sequence star • the path of the Sun’s evolution from main sequence sta ...
... 15. Draw the Hertzsprung-Russell (H-R) diagram below, showing: • labels and units for both axes • the position of the Sun currently (should line up with marks on both axes) • the path of the Sun’s evolution from protostar to main sequence star • the path of the Sun’s evolution from main sequence sta ...
HOMEWORK 5 SOLUTIONS CHAPTER 9 4.A A red giant star will
... 4.C Since the Earth would not be within the even horizon of the black hole, the Earth’s orbit will not change. Since the Sun is so far away, it appears to the Earth to be a point source. The black hole will also appear to be a point source so the orbit will not change. CHAPTER 11 1.C The halo is hom ...
... 4.C Since the Earth would not be within the even horizon of the black hole, the Earth’s orbit will not change. Since the Sun is so far away, it appears to the Earth to be a point source. The black hole will also appear to be a point source so the orbit will not change. CHAPTER 11 1.C The halo is hom ...
Life Cycle of Stars
... much of its mass is hurled into space, leaving behind a small, dense neutron star. ...
... much of its mass is hurled into space, leaving behind a small, dense neutron star. ...
Astronomy – Interpreting Main Sequence Star Data The
... 3.a) How would our sun be classified? b) How long is the life time of our sun? c) As our sun ages how will it change? 4. Which star type in the table would be considered a dwarf star? Explain your answer. 5. Which star type is most similar to the Sun? Explain your answer. 6. Which star types are lik ...
... 3.a) How would our sun be classified? b) How long is the life time of our sun? c) As our sun ages how will it change? 4. Which star type in the table would be considered a dwarf star? Explain your answer. 5. Which star type is most similar to the Sun? Explain your answer. 6. Which star types are lik ...
Brighter than the average star?
... star? It is probably a result of over zealously applying the mediocrity principle. This is the philosophical idea that there is nothing special about our place in the Universe (“we live on an ordinary planet, orbiting an ordinary star in an ordinary galaxy…”) In general this a sensible notion, after ...
... star? It is probably a result of over zealously applying the mediocrity principle. This is the philosophical idea that there is nothing special about our place in the Universe (“we live on an ordinary planet, orbiting an ordinary star in an ordinary galaxy…”) In general this a sensible notion, after ...
Universe CBA Review - cms16-17
... 33.) What type of EMS wave has the longest wavelength? _____________________ 34.) Does infrared or x-ray waves have a longer wavelength? __________________ 35.) What type of wave has the highest frequency in the EMS? __________________ 36.) Draw and label the visible light spectrum ...
... 33.) What type of EMS wave has the longest wavelength? _____________________ 34.) Does infrared or x-ray waves have a longer wavelength? __________________ 35.) What type of wave has the highest frequency in the EMS? __________________ 36.) Draw and label the visible light spectrum ...
The Hertzsprung-Russell Diagram
... 4. Summary of Stellar Properties * Range of temperature, luminosity, mass & radius 5. Stars in the Night Sky * Nearest stars dim & cool * Brightest-appearing stars distant & luminous ...
... 4. Summary of Stellar Properties * Range of temperature, luminosity, mass & radius 5. Stars in the Night Sky * Nearest stars dim & cool * Brightest-appearing stars distant & luminous ...
Unit 1
... • Photons traveling away from a massive object will experience a gravitational redshift. – Their frequency will be shifted toward the red end of the ...
... • Photons traveling away from a massive object will experience a gravitational redshift. – Their frequency will be shifted toward the red end of the ...
What Can We See in the Night Sky?
... Star Clusters • Groups of stars that are close together and travel together are known as star clusters • Star clusters are part of galaxies • Open clusters – contain about 50 to 1000 stars – dispersed along the Milky Way’s main band ...
... Star Clusters • Groups of stars that are close together and travel together are known as star clusters • Star clusters are part of galaxies • Open clusters – contain about 50 to 1000 stars – dispersed along the Milky Way’s main band ...
Answer titese questions on a piece of loose leaf paper.
... S. On what two things does the absolute brightness of a star depend? 9. "What unit do astronomers use to measure distances between stars? • 10. Astronomers often use to measure distances to nearby stars. Qiini: Think about the thumb demo we didin class.) I I . The Hcrczspiung-Russcll diagram shows t ...
... S. On what two things does the absolute brightness of a star depend? 9. "What unit do astronomers use to measure distances between stars? • 10. Astronomers often use to measure distances to nearby stars. Qiini: Think about the thumb demo we didin class.) I I . The Hcrczspiung-Russcll diagram shows t ...
Earth in the Solar System - San Diego Unified School District
... ___________________________________ as measures of _________________________ between the _______________, ________________ and ____________________ 8. What is a light year (LY)? 9. What is an Astronomical Unit (AU)? 10. Which measurement would you use to measure the distance from the Earth to the As ...
... ___________________________________ as measures of _________________________ between the _______________, ________________ and ____________________ 8. What is a light year (LY)? 9. What is an Astronomical Unit (AU)? 10. Which measurement would you use to measure the distance from the Earth to the As ...
Section 7.3 - CPO Science
... • A galaxy is a huge group of stars, dust, gas, and other objects bound together by gravitational forces. • The sun, along with an estimated 200 billion other stars, belongs to the Milky Way galaxy. ...
... • A galaxy is a huge group of stars, dust, gas, and other objects bound together by gravitational forces. • The sun, along with an estimated 200 billion other stars, belongs to the Milky Way galaxy. ...
The Milky Way Galaxy
... To determine the rotation curve of the Galaxy, we will introduce a more convenient coordinate system, called the Galactic coordinate system. Note that the plane of the solar system is not the same as the plane of the Milky Way disk, and the Earth itself is tipped with respect to the plane of the sol ...
... To determine the rotation curve of the Galaxy, we will introduce a more convenient coordinate system, called the Galactic coordinate system. Note that the plane of the solar system is not the same as the plane of the Milky Way disk, and the Earth itself is tipped with respect to the plane of the sol ...
Stars and Galaxies Misconceptions
... conception of the scale of the Milky Way may think that the stars in the night sky are from other galaxies. All the stars we see with our “naked eyes” are in the Milky Way Galaxy –we cannot see individual stars in other galaxies without powerful telescopes. ...
... conception of the scale of the Milky Way may think that the stars in the night sky are from other galaxies. All the stars we see with our “naked eyes” are in the Milky Way Galaxy –we cannot see individual stars in other galaxies without powerful telescopes. ...
Summary: Stellar Distances
... Stellar Colors & Luminosities Color and Temperature The color of a star is related to its surface temperature. “surface” = “photosphere” Observed color is almost independent of the star’s distance. Interstellar dust makes stars look redder over long distances Temperatures can also be inferred from ...
... Stellar Colors & Luminosities Color and Temperature The color of a star is related to its surface temperature. “surface” = “photosphere” Observed color is almost independent of the star’s distance. Interstellar dust makes stars look redder over long distances Temperatures can also be inferred from ...
Groups_of_Stars_spectra
... • Can tell a star’s composition by looking at its spectra (usually an absorption spectra) • We can identify the spectra of various elements • Comparing a stars absorption spectra to the elements can indicate composition ...
... • Can tell a star’s composition by looking at its spectra (usually an absorption spectra) • We can identify the spectra of various elements • Comparing a stars absorption spectra to the elements can indicate composition ...
Stellar kinematics
Stellar kinematics is the study of the movement of stars without needing to understand how they acquired their motion. This differs from stellar dynamics, which takes into account gravitational effects. The motion of a star relative to the Sun can provide useful information about the origin and age of a star, as well as the structure and evolution of the surrounding part of the Milky Way.In astronomy, it is widely accepted that most stars are born within molecular clouds known as stellar nurseries. The stars formed within such a cloud compose open clusters containing dozens to thousands of members. These clusters dissociate over time. Stars that separate themselves from the cluster's core are designated as members of the cluster's stellar association. If the remnant later drifts through the Milky Way as a coherent assemblage, then it is termed a moving group.