Name _________ Date _____________ Period ______ Skills
... a. a unique set of bright emission lines. b. a unique set of bright absorption lines. c. a set of emission lines shared with other elements. d. a set of absorption lines shared with other elements. 10. Why is the spectrum of a star called an absorption spectrum? ...
... a. a unique set of bright emission lines. b. a unique set of bright absorption lines. c. a set of emission lines shared with other elements. d. a set of absorption lines shared with other elements. 10. Why is the spectrum of a star called an absorption spectrum? ...
The extragalactic universe and distance measurements
... – Tried to determine distribution of stars in Milky Way – described Milky Way as “detached nebula”, with Sun near center. – Thought that the nebulae could be similar systems – Turns out that his conclusions were heavily effected by dust in the Milky Way – Milky Way is much bigger and better ordered ...
... – Tried to determine distribution of stars in Milky Way – described Milky Way as “detached nebula”, with Sun near center. – Thought that the nebulae could be similar systems – Turns out that his conclusions were heavily effected by dust in the Milky Way – Milky Way is much bigger and better ordered ...
Recap: High Mass Stars
... Neutron Star • Star with a core from 1.4 to 3 times the size of the Sun becomes a neutron. • Electrons and neutrons combine into neutrons. • 10 km (6 mi) in diameter with a mass more than our Sun! • A teaspoon of neutron star would be about 10 million tons • Acts like a huge magnet with magnetic p ...
... Neutron Star • Star with a core from 1.4 to 3 times the size of the Sun becomes a neutron. • Electrons and neutrons combine into neutrons. • 10 km (6 mi) in diameter with a mass more than our Sun! • A teaspoon of neutron star would be about 10 million tons • Acts like a huge magnet with magnetic p ...
The measure of Cosmological distances
... Found new planet (Uranus)Discover Infra-Red lightFirst map of the sky: Idea: All the stars are the same. Therefore, bright stars are closer. ...
... Found new planet (Uranus)Discover Infra-Red lightFirst map of the sky: Idea: All the stars are the same. Therefore, bright stars are closer. ...
Stellar Evolution – Test Review Answers
... The greater the mass of a main-sequence star, the greater its luminosity (and also the greater its radius and surface temperature). In other words, stars that are higher up (brighter) on the main sequence are more massive, larger, and hotter. 19. Describe the beginning of a star’s life. The birth of ...
... The greater the mass of a main-sequence star, the greater its luminosity (and also the greater its radius and surface temperature). In other words, stars that are higher up (brighter) on the main sequence are more massive, larger, and hotter. 19. Describe the beginning of a star’s life. The birth of ...
dtu7ech11 - Fort Thomas Independent Schools
... • that the distances to many nearby stars can be measured directly, while the distances to farther ones are determined indirectly • the observed properties of stars on which astronomers base their models of stellar evolution • how astronomers analyze starlight to determine a star’s temperature and c ...
... • that the distances to many nearby stars can be measured directly, while the distances to farther ones are determined indirectly • the observed properties of stars on which astronomers base their models of stellar evolution • how astronomers analyze starlight to determine a star’s temperature and c ...
The Life Cycle of a Star Webquest:
... 3. How long can a star stay a protostar? ____________________________ 4. Explain nuclear fusion. ____________________________________________________________ ______________________________________________________________________________________ 5. How long does a star live before it begins to die? _ ...
... 3. How long can a star stay a protostar? ____________________________ 4. Explain nuclear fusion. ____________________________________________________________ ______________________________________________________________________________________ 5. How long does a star live before it begins to die? _ ...
STAAR Review – Week Ten
... 12. In the center of the Milky Way is a large bulge of stars. Within this bulge lies a black hole. The Sun is located – a. outside of the Milky Way. b. in the large bulge of stars near the center of the Milky Way. c. in the black hole in the center of the Milky Way. d. near the edge of the Milky Way ...
... 12. In the center of the Milky Way is a large bulge of stars. Within this bulge lies a black hole. The Sun is located – a. outside of the Milky Way. b. in the large bulge of stars near the center of the Milky Way. c. in the black hole in the center of the Milky Way. d. near the edge of the Milky Way ...
Rex Space
... The Sun is the star at the center of the Solar System that gives us heat and light for life on earth. First The sun is giant burning ball of helium and gas, it has a temperature of 9,932 degrees Fahrenheit and 5,500 degrees Celsius. *For example the sun is a star made of fire and gas. The sun is so ...
... The Sun is the star at the center of the Solar System that gives us heat and light for life on earth. First The sun is giant burning ball of helium and gas, it has a temperature of 9,932 degrees Fahrenheit and 5,500 degrees Celsius. *For example the sun is a star made of fire and gas. The sun is so ...
Measuring Stellar Distances
... Furthermore, the volume defined by r = 20 parsecs is only one ten-millionth of the total volume of the disk of our Galaxy. How can we be sure that this tiny volume contains a representative sample of stars? Fortunately, a theoretical argument involving stellar lifetimes serves as a consistency check ...
... Furthermore, the volume defined by r = 20 parsecs is only one ten-millionth of the total volume of the disk of our Galaxy. How can we be sure that this tiny volume contains a representative sample of stars? Fortunately, a theoretical argument involving stellar lifetimes serves as a consistency check ...
December 1, 2011 - Perry Local Schools
... A. If you didn’t know which flashlight was which, would you be able to tell which one produced the most light? B. From this exercise, and the data in table G2a, what conclusion can you draw about the stars Rigel and Sirius? ...
... A. If you didn’t know which flashlight was which, would you be able to tell which one produced the most light? B. From this exercise, and the data in table G2a, what conclusion can you draw about the stars Rigel and Sirius? ...
Chapter 28 Notes
... Because of Earth’s movement around the sun Apparent Magnitude – What is it? How bright a star appears to be to an observer on Earth. ...
... Because of Earth’s movement around the sun Apparent Magnitude – What is it? How bright a star appears to be to an observer on Earth. ...
AnwerkeyTypes-of-stars-and-HR-diagram
... and Luminosity is measured using Brightness and Distance Answer the following using H-R diagram: 1. Surface Temperature of sun: __5500 degree celcius______________________ ...
... and Luminosity is measured using Brightness and Distance Answer the following using H-R diagram: 1. Surface Temperature of sun: __5500 degree celcius______________________ ...
Where We Were to Where We Are: The History of Astronomy
... Heliocentric Model • This model put the Sun in the center of the solar system • The earth rotates around its axis and revolves around the sun ...
... Heliocentric Model • This model put the Sun in the center of the solar system • The earth rotates around its axis and revolves around the sun ...
Scientists classify stars by
... trigger a violent explosion known as a supernova. 2. If the remaining mass of the star is about 1.4 times that of our Sun, it will collapse further to become a neutron star. 3. If the remaining mass of the star is more than about three times that of the Sun, it will collapse and what is left behind ...
... trigger a violent explosion known as a supernova. 2. If the remaining mass of the star is about 1.4 times that of our Sun, it will collapse further to become a neutron star. 3. If the remaining mass of the star is more than about three times that of the Sun, it will collapse and what is left behind ...
Stellar Evolution: After the Main Sequence
... As a cluster ages, the main sequence is “eaten away” from the upper left as stars of progressively smaller mass evolve into red giants ...
... As a cluster ages, the main sequence is “eaten away” from the upper left as stars of progressively smaller mass evolve into red giants ...
Stars - MrCrabtreesScience
... • Pressure from the core balance pressure from above layers, particles don’t move. • Energy bounces around inside this layer for an average of 170,000 years. • 7-2,000,000 K ...
... • Pressure from the core balance pressure from above layers, particles don’t move. • Energy bounces around inside this layer for an average of 170,000 years. • 7-2,000,000 K ...
The Science behind the Stars ctY Astrophysics by Spencer McClung
... of stars with three helium atoms combining to form a carbon atom. For the most massive stars, this continues until finally iron is formed. Then the weight is so great that the star collapses in on itself and explodes in a supernova, which is how almost every atom heavier than iron is created. That m ...
... of stars with three helium atoms combining to form a carbon atom. For the most massive stars, this continues until finally iron is formed. Then the weight is so great that the star collapses in on itself and explodes in a supernova, which is how almost every atom heavier than iron is created. That m ...
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.