molecular clouds
... Molecular Clouds In these nebulae much of the hydrogen is in the molecular (H2) form, so these nebulae are called molecular clouds. The largest such formations are called giant molecular clouds (GMC). ...
... Molecular Clouds In these nebulae much of the hydrogen is in the molecular (H2) form, so these nebulae are called molecular clouds. The largest such formations are called giant molecular clouds (GMC). ...
Life and Death of a Star – video questions
... 9. __________ is the fundamental thing that drives the life history of stars. _______________ stars live their lives faster. 10. The size of a star influences how it ______________. 11. what will gravity do to the sun when fusion is over? ...
... 9. __________ is the fundamental thing that drives the life history of stars. _______________ stars live their lives faster. 10. The size of a star influences how it ______________. 11. what will gravity do to the sun when fusion is over? ...
Stars and Sun
... Billions of galaxies make up a universe In 1995, the Hubble Space Telescope discovered over 1,500 galaxies in a tiny sector of the sky ...
... Billions of galaxies make up a universe In 1995, the Hubble Space Telescope discovered over 1,500 galaxies in a tiny sector of the sky ...
24-2 Characteristics of Stars
... Measuring Distances to Stars • Use parallax to measure distances from earth to stars – Parallax – apparent change in position of an object when you look at it from different places – Look at star when earth is on one side of the sun and look at same when earth is on other side of the sun – Measure ...
... Measuring Distances to Stars • Use parallax to measure distances from earth to stars – Parallax – apparent change in position of an object when you look at it from different places – Look at star when earth is on one side of the sun and look at same when earth is on other side of the sun – Measure ...
Everything Under and Over The Stars
... If the sun went nova, what would happen to the solar system? There was a recent supernova called SN1993J in a star system, which is not mentioned. The powerful shockwave traveled at 44 million mph, but 5 years later it slowed down because of drag caused by particles. There has been a supernova in t ...
... If the sun went nova, what would happen to the solar system? There was a recent supernova called SN1993J in a star system, which is not mentioned. The powerful shockwave traveled at 44 million mph, but 5 years later it slowed down because of drag caused by particles. There has been a supernova in t ...
Ch. 27 Stars & Galaxies
... small dense area of neutrons = neutron star o Some may emit beams of radiation called pulsars ...
... small dense area of neutrons = neutron star o Some may emit beams of radiation called pulsars ...
solar system formation and gal
... What happens to the Nebula? • Over time it flattens into a disc-like shape while spinning in one direction • Astronomers theorize that any planets forming during this phase would form in the same flat plane and would rotate and revolve around the star in the same way • Using technology, astronomers ...
... What happens to the Nebula? • Over time it flattens into a disc-like shape while spinning in one direction • Astronomers theorize that any planets forming during this phase would form in the same flat plane and would rotate and revolve around the star in the same way • Using technology, astronomers ...
The Evolution of Massive Stars
... Neutron Stars: a brief history • Basic physics understood in the 1930s • At that time, no known counterparts • In the 1950s and 1960s, more and more strange objects found, but where were the neutrons stars, or did they even exist? • The case of the Crab Nebula (supernova of 1054 AD) ...
... Neutron Stars: a brief history • Basic physics understood in the 1930s • At that time, no known counterparts • In the 1950s and 1960s, more and more strange objects found, but where were the neutrons stars, or did they even exist? • The case of the Crab Nebula (supernova of 1054 AD) ...
Astronomers use astronomical units(AU) to measure distances
... – All the matter and empty space surrounding them ...
... – All the matter and empty space surrounding them ...
What are stars?
... - We know now that the stars in a constellation are not necessarily very close together, but appear to be due to our line of sight - Examples – Orion, Ursa Major (Big Dipper) ...
... - We know now that the stars in a constellation are not necessarily very close together, but appear to be due to our line of sight - Examples – Orion, Ursa Major (Big Dipper) ...
Name: Period : ______ The Universe – Life and Death of a Star How
... 31. Humans are essentially made of what? 32. Even more small and dense than a white dwarf is a _______________________ ____. 33. How much would one teaspoon of this object weigh? 34. When we see the beam of the neutron star “lighthouse” it is called a _____________________. 35. An object even denser ...
... 31. Humans are essentially made of what? 32. Even more small and dense than a white dwarf is a _______________________ ____. 33. How much would one teaspoon of this object weigh? 34. When we see the beam of the neutron star “lighthouse” it is called a _____________________. 35. An object even denser ...
The Fates of Stars Mass-Luminosity Relation: Lifetime Relation:
... 1. Plot these seven stars on a temperature-luminosity diagram on the nearest board. (You don't have to be perfectly accurate; just show the general trend.) Remember that the temp. axis goes backwards. 2. Calculate the mass and total lifetime of one of these stars and fill this entries in the table. ...
... 1. Plot these seven stars on a temperature-luminosity diagram on the nearest board. (You don't have to be perfectly accurate; just show the general trend.) Remember that the temp. axis goes backwards. 2. Calculate the mass and total lifetime of one of these stars and fill this entries in the table. ...
source
... 1. Plot these seven stars on a temperature-luminosity diagram on the nearest board. (You don't have to be perfectly accurate; just show the general trend.) Remember that the temp. axis goes backwards. 2. Calculate the mass and total lifetime of one of these stars and fill this entries in the table. ...
... 1. Plot these seven stars on a temperature-luminosity diagram on the nearest board. (You don't have to be perfectly accurate; just show the general trend.) Remember that the temp. axis goes backwards. 2. Calculate the mass and total lifetime of one of these stars and fill this entries in the table. ...
Science 8
... 5. To measure parallax shift, astronomers look at the same star twice, when Earth is on different sides of the ____________________. ...
... 5. To measure parallax shift, astronomers look at the same star twice, when Earth is on different sides of the ____________________. ...
Jeopardy Questions
... Q: What is the period-luminosity relationship A: An observed relationship between the period of a Cepheid Variable star’s variability and its luminosity. This relation enabled accurate distances to stars in the Milky Way to be measured for the first time ...
... Q: What is the period-luminosity relationship A: An observed relationship between the period of a Cepheid Variable star’s variability and its luminosity. This relation enabled accurate distances to stars in the Milky Way to be measured for the first time ...
F03HW09
... Why are earth-based parallax measurements limited to the nearest stars? Parallax measurements are limited because we measure the motion of a star due to the motion of Earth around the sun. Earth’s orbit is so small compared to the distance to stars that even the nearest stars show very small apparen ...
... Why are earth-based parallax measurements limited to the nearest stars? Parallax measurements are limited because we measure the motion of a star due to the motion of Earth around the sun. Earth’s orbit is so small compared to the distance to stars that even the nearest stars show very small apparen ...
Chapter 25 Study guide Answer Key
... Which sequence of events describes the big bang theory? Begin with the earliest event. a. Explosion; atoms form; stars form; all matter concentrated at a single point. b. All matter concentrated at a single point; explosion; atoms form; stars form. c. Explosion; stars form; all matter concentrated a ...
... Which sequence of events describes the big bang theory? Begin with the earliest event. a. Explosion; atoms form; stars form; all matter concentrated at a single point. b. All matter concentrated at a single point; explosion; atoms form; stars form. c. Explosion; stars form; all matter concentrated a ...
Chapter 13 Notes – The Deaths of Stars
... Sun will expand to a red giant in ______________ billion years Expands to ______________ radius Earth will then be ___________________ Sun MAY form a ________________ nebula (but uncertain) Sun’s C, O core will become a ______________ dwarf VIII. The Deaths of Massive Stars: Supernovae F ...
... Sun will expand to a red giant in ______________ billion years Expands to ______________ radius Earth will then be ___________________ Sun MAY form a ________________ nebula (but uncertain) Sun’s C, O core will become a ______________ dwarf VIII. The Deaths of Massive Stars: Supernovae F ...
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.