Summation Packet KEY
... 24. When a scientist looks at a galaxy that is 12 billion light years away and is red shifted, what does that tell you about age and size of the Universe? The universe is very old, has been expanding and continues to expand. 25. When Doppler was on the train, what was he trying to prove? The frequen ...
... 24. When a scientist looks at a galaxy that is 12 billion light years away and is red shifted, what does that tell you about age and size of the Universe? The universe is very old, has been expanding and continues to expand. 25. When Doppler was on the train, what was he trying to prove? The frequen ...
May 2010 - Pomona Valley Amateur Astronomers
... then a simple measure of the relative motion. Most stars will have very small values for Z. For Andromeda it is only slightly more complicated. The galaxy is moving toward us, so the center shift is blue. For any star within that galaxy the shift is more or less depending on whether the star is movi ...
... then a simple measure of the relative motion. Most stars will have very small values for Z. For Andromeda it is only slightly more complicated. The galaxy is moving toward us, so the center shift is blue. For any star within that galaxy the shift is more or less depending on whether the star is movi ...
Star Formation - University of Redlands
... attract more matter. • Planetesimals are the building blocks of the planets. Orion Nebula – Copyright O’Dell and Wong ...
... attract more matter. • Planetesimals are the building blocks of the planets. Orion Nebula – Copyright O’Dell and Wong ...
Lecture 24 - Empyrean Quest Publishers
... How bright (L in watts)? Luminosity at the source is determined from apparent brightness and distance (d). Apparent magnitude (old way). We can see about 1,000 stars in Northern Hemisphere with naked eye. Hipparchus rated them from 1 to 6. A '1' is 2.52 x brighter than a '2', etc. Range in brightnes ...
... How bright (L in watts)? Luminosity at the source is determined from apparent brightness and distance (d). Apparent magnitude (old way). We can see about 1,000 stars in Northern Hemisphere with naked eye. Hipparchus rated them from 1 to 6. A '1' is 2.52 x brighter than a '2', etc. Range in brightnes ...
Stellar Pops 2
... evolution histories for very large sample of galaxies throughout the Hubble sequence. – Did star formation comence at the same time thoughout the volume of space to the Virgo Cluster? – What are the star-formation histories for gE galaxies? – Is there a Universal `floor’ to the MDF? – Are there IMF ...
... evolution histories for very large sample of galaxies throughout the Hubble sequence. – Did star formation comence at the same time thoughout the volume of space to the Virgo Cluster? – What are the star-formation histories for gE galaxies? – Is there a Universal `floor’ to the MDF? – Are there IMF ...
Kepler`s Law - New Mexico Tech
... •What type of object emits the given light intensity? X-ray Binaries: Binary Star system in which illuminate with x-rays. The x ray emissions are caused from matter being transferred from one star to the other releasing gravitational potential energy. These two stars usually consist of a normal star ...
... •What type of object emits the given light intensity? X-ray Binaries: Binary Star system in which illuminate with x-rays. The x ray emissions are caused from matter being transferred from one star to the other releasing gravitational potential energy. These two stars usually consist of a normal star ...
7_Big_bang
... M31 is made out of lots of stars just like our own Milky Way! We are but one of very many galaxies! Stars were very dim. This implied M31 is very far away. Of order 3 million light years! [Note, today we think of this distance as a very close neigbor.] Read discussion and debate in the Perfect Machi ...
... M31 is made out of lots of stars just like our own Milky Way! We are but one of very many galaxies! Stars were very dim. This implied M31 is very far away. Of order 3 million light years! [Note, today we think of this distance as a very close neigbor.] Read discussion and debate in the Perfect Machi ...
Solar System from Web
... •What type of object emits the given light intensity? X-ray Binaries: Binary Star system in which illuminate with x-rays. The x ray emissions are caused from matter being transferred from one star to the other releasing gravitational potential energy. These two stars usually consist of a normal star ...
... •What type of object emits the given light intensity? X-ray Binaries: Binary Star system in which illuminate with x-rays. The x ray emissions are caused from matter being transferred from one star to the other releasing gravitational potential energy. These two stars usually consist of a normal star ...
PDF - BYU Studies
... movement (called the parallax) of a faint star in the constellation Cygnus. Combining the parallax with the known size of earth’s orbit immediately gave the distance to the star. Determination of the distance to other nearby stars continues to the present, for only when the distance is known can abs ...
... movement (called the parallax) of a faint star in the constellation Cygnus. Combining the parallax with the known size of earth’s orbit immediately gave the distance to the star. Determination of the distance to other nearby stars continues to the present, for only when the distance is known can abs ...
Chapter 13 The Life of a Star The Life of a Star Mass Is the Key The
... • Aristotle wrote more than 2000 years ago that stars are heated by their passage through the heavens, but never considered that they evolved • In the 18th century, Immanuel Kant described the Sun as a fiery sphere, formed from the gases gravitated to the center of a solar nebula • In the 1850s and ...
... • Aristotle wrote more than 2000 years ago that stars are heated by their passage through the heavens, but never considered that they evolved • In the 18th century, Immanuel Kant described the Sun as a fiery sphere, formed from the gases gravitated to the center of a solar nebula • In the 1850s and ...
Learning About Stars
... that the stars don’t move? It’s because we are traveling together in a group and the stars’ positions stay the same in that group….while the planets move around the stars. The stars appear to move because the EARTH is moving. http://theapblog.wordpress.com/2007/04/16/tutorial-star-trails/ ...
... that the stars don’t move? It’s because we are traveling together in a group and the stars’ positions stay the same in that group….while the planets move around the stars. The stars appear to move because the EARTH is moving. http://theapblog.wordpress.com/2007/04/16/tutorial-star-trails/ ...
Astronomy 111 – Lecture 2
... – There is a time when it is light. = Day – There is a time when it is dark. = Night ...
... – There is a time when it is light. = Day – There is a time when it is dark. = Night ...
Star Life Cycle – Web Activity
... 25. If a star runs out of fuel and collapses, what wins? 26. What is the mass range of stars that will create planetary nebulae and white dwarfs? 27. What is the mass of the core that makes a white dwarf and how big is the white dwarf? 28. Click on “White Dwarf”. Read the description and explain how ...
... 25. If a star runs out of fuel and collapses, what wins? 26. What is the mass range of stars that will create planetary nebulae and white dwarfs? 27. What is the mass of the core that makes a white dwarf and how big is the white dwarf? 28. Click on “White Dwarf”. Read the description and explain how ...
Chapter 13
... Supernovae • In a few minutes, more energy is released than during the star’s entire life • It brightens to several billion times the luminosity of the Sun – a luminosity larger than all the stars in the Milky Way combined ...
... Supernovae • In a few minutes, more energy is released than during the star’s entire life • It brightens to several billion times the luminosity of the Sun – a luminosity larger than all the stars in the Milky Way combined ...
The HR Diagram - Faculty Web Pages
... A star is a delicately balanced ball of gas, fighting between two impulses: gravity, which wants to squeeze the gas all down to a single point, and radiation pressure, which wants to blast all the gas out to infinity. These two opposite forces balance out in a process called Hydrostatic Equilibrium, ...
... A star is a delicately balanced ball of gas, fighting between two impulses: gravity, which wants to squeeze the gas all down to a single point, and radiation pressure, which wants to blast all the gas out to infinity. These two opposite forces balance out in a process called Hydrostatic Equilibrium, ...
a description of planets and stars you may see
... third-largest member of the Local Group of galaxies, which includes the Milky Way Galaxy, the Andromeda Galaxy. It is one of the most distant permanent objects that can be viewed with the naked eye. The Ring nebula (also known as M57) is a planetary nebula is located in the constellation of Lyra. It ...
... third-largest member of the Local Group of galaxies, which includes the Milky Way Galaxy, the Andromeda Galaxy. It is one of the most distant permanent objects that can be viewed with the naked eye. The Ring nebula (also known as M57) is a planetary nebula is located in the constellation of Lyra. It ...
November 2005 - Otterbein University
... may look strange, e.g. K5III for Aldebaran. Ignore the roman numbers ( III means a giant star, V means dwarf star, etc). First letter is the spectral type: K (one of OBAFGKM), the arab number (5) is like a second digit to the spectral type, so K0 is very close to G, K9 is very close to M. ...
... may look strange, e.g. K5III for Aldebaran. Ignore the roman numbers ( III means a giant star, V means dwarf star, etc). First letter is the spectral type: K (one of OBAFGKM), the arab number (5) is like a second digit to the spectral type, so K0 is very close to G, K9 is very close to M. ...
Stellar temperatures and spectral types
... • Imagine a star with a relatively cool (4000k) atmosphere. Temperature is just a measure of the average velocity of the atoms and molecules in a gas. For a relatively cool gas there are: (1) Few atomic collisions with enough energy to knock electrons up to the 1st excited state so the majority of t ...
... • Imagine a star with a relatively cool (4000k) atmosphere. Temperature is just a measure of the average velocity of the atoms and molecules in a gas. For a relatively cool gas there are: (1) Few atomic collisions with enough energy to knock electrons up to the 1st excited state so the majority of t ...
Catching Andromeda`s Light
... Andromeda’s spiral arms, he thought they might also trace the Milky Way’s spiral arms. So in 1951, Morgan mapped the locations of all the red clouds of gas he and his colleagues could find. He discovered that the gas clouds lined up along spiral arms, indicating that we live in a spiral galaxy. Why ...
... Andromeda’s spiral arms, he thought they might also trace the Milky Way’s spiral arms. So in 1951, Morgan mapped the locations of all the red clouds of gas he and his colleagues could find. He discovered that the gas clouds lined up along spiral arms, indicating that we live in a spiral galaxy. Why ...
"Stars" pdf file
... To discover the system which is able to heat so much gas and for such a long time we have to dive into the microscopic world of atomic nuclei. Atoms have a precise structure: they have a nucleus formed by particles called protons and neutrons, around which orbits a cloud of smaller particles called ...
... To discover the system which is able to heat so much gas and for such a long time we have to dive into the microscopic world of atomic nuclei. Atoms have a precise structure: they have a nucleus formed by particles called protons and neutrons, around which orbits a cloud of smaller particles called ...
Astronomy - Test 3
... destroy themselves E) Although such objects could occur, they would be so rare that we ignore them 26. Which of the following was not a method for making black holes that was discussed? A) Very high mass star supernova B) White dwarf supernova C) Accretion of matter onto a neutron star D) Merger of ...
... destroy themselves E) Although such objects could occur, they would be so rare that we ignore them 26. Which of the following was not a method for making black holes that was discussed? A) Very high mass star supernova B) White dwarf supernova C) Accretion of matter onto a neutron star D) Merger of ...
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.