Teacher Sheet 1. What variables does the HR Diagram compare
... What are the four important things to note about the HR Diagram? Most of the stars in the solar neighborhood fall on a well defined “Main Sequence”; there are very few “red giants”; there are very few “blue supergiants”; and there are a few faints stars near the bottom left of the diagram, which are ...
... What are the four important things to note about the HR Diagram? Most of the stars in the solar neighborhood fall on a well defined “Main Sequence”; there are very few “red giants”; there are very few “blue supergiants”; and there are a few faints stars near the bottom left of the diagram, which are ...
The IC 348 surface density in the Perseus molecular cloud L. Cambrésy Observatoire de Strasbourg, France
... IC 348 surface density of unknown members ...
... IC 348 surface density of unknown members ...
Aging nearby spiral galaxies using H
... Proportion of star made from “metals” »Big Bang cosmology forms H, He in early universe »All heavier elements formed in starsmetals Negligible change over model lifetime (Leitherer 97) »Metals returned to ISM by supernovae ...
... Proportion of star made from “metals” »Big Bang cosmology forms H, He in early universe »All heavier elements formed in starsmetals Negligible change over model lifetime (Leitherer 97) »Metals returned to ISM by supernovae ...
Astro twopages
... In this equation, P is pressure (force/area), r is distance from the center, M(r) is the net mass within r or the center (net mass located inside a sphere of radius r concentric with the , ρ(r) is the density at distance r and G is the universal gravitational constant. Distances (actually best expre ...
... In this equation, P is pressure (force/area), r is distance from the center, M(r) is the net mass within r or the center (net mass located inside a sphere of radius r concentric with the , ρ(r) is the density at distance r and G is the universal gravitational constant. Distances (actually best expre ...
The Lifecycle of Stars
... When A Star Dies Supernova Some massive stars may explode in a large, bright display called a Supernova Supernova occur when a massive star collapses and throws its outer layers into space. This explosion is so powerful that it can be brighter than an entire galaxy for several days!! ...
... When A Star Dies Supernova Some massive stars may explode in a large, bright display called a Supernova Supernova occur when a massive star collapses and throws its outer layers into space. This explosion is so powerful that it can be brighter than an entire galaxy for several days!! ...
Last time: Star Clusters (sec. 19.6)
... 2. Their central densities are lower, so never get degenerate. This means they can keep burning the ashes as new fuels: H He C O Ne … The star will have an “onion skin” interior, with the heavier “ashes” closer to the center. During this burning the stars cross the H-R diagram horizontally ...
... 2. Their central densities are lower, so never get degenerate. This means they can keep burning the ashes as new fuels: H He C O Ne … The star will have an “onion skin” interior, with the heavier “ashes” closer to the center. During this burning the stars cross the H-R diagram horizontally ...
How the Universe Works Extreme Stars Name 1. When a star dies
... How the Universe Works Extreme Stars Name _______________ 1. When a star dies (gravity) (fusion) wins out. 2. The sun will run out of fuel in about (3) (7) (10) billion years. 3. When the sun runs out of hydrogen fuel, it will become a (red giant) (neutron star) (black hole). 4. Eventually, the heli ...
... How the Universe Works Extreme Stars Name _______________ 1. When a star dies (gravity) (fusion) wins out. 2. The sun will run out of fuel in about (3) (7) (10) billion years. 3. When the sun runs out of hydrogen fuel, it will become a (red giant) (neutron star) (black hole). 4. Eventually, the heli ...
Document
... a greater or lesser extent) common to all stars. – If the laws of science we know apply to the entire universe (which we assume), then, given sufficient time, life must have originated elsewhere in the cosmos. • The opposing view maintains that intelligent life on Earth is the product of a series of ...
... a greater or lesser extent) common to all stars. – If the laws of science we know apply to the entire universe (which we assume), then, given sufficient time, life must have originated elsewhere in the cosmos. • The opposing view maintains that intelligent life on Earth is the product of a series of ...
Level 3
... SC.3.E.5.1 : Explain that stars can be different; some are smaller, some are larger, and some appear brighter than others; all except the Sun are so far away that they look like points of light. LEVEL 3 SC.3.E.5.2: Identify the Sun as a star that emits energy; some of it in the form of light. LEVEL ...
... SC.3.E.5.1 : Explain that stars can be different; some are smaller, some are larger, and some appear brighter than others; all except the Sun are so far away that they look like points of light. LEVEL 3 SC.3.E.5.2: Identify the Sun as a star that emits energy; some of it in the form of light. LEVEL ...
Stars in our Galaxy
... this topic. 3 popular theories are: – Steady state theory: universe always existed as it is today and it always will. It does not grow – Oscillating model: the universe began with expansion, over time the expansion slowed and the universe contracted then the cycle began over again – Big bang theory: ...
... this topic. 3 popular theories are: – Steady state theory: universe always existed as it is today and it always will. It does not grow – Oscillating model: the universe began with expansion, over time the expansion slowed and the universe contracted then the cycle began over again – Big bang theory: ...
Level 2 Earth and Space Science (91192) 2015
... Check that the National Student Number (NSN) on your admission slip is the same as the number at the top of this page. You should attempt ALL the questions in this booklet. If you need more room for any answer, use the extra space provided at the back of this booklet and clearly number the question. ...
... Check that the National Student Number (NSN) on your admission slip is the same as the number at the top of this page. You should attempt ALL the questions in this booklet. If you need more room for any answer, use the extra space provided at the back of this booklet and clearly number the question. ...
The Solar System Worksheet - Laureate International College
... 1. The solar cell (which produces a current) was connected to the am meter (which measures the current). 2. A light source (of various power) was shone on the solar cell from various distances. 3. The distances and the amm eter readings were recorded. Refer to the data chart below. ...
... 1. The solar cell (which produces a current) was connected to the am meter (which measures the current). 2. A light source (of various power) was shone on the solar cell from various distances. 3. The distances and the amm eter readings were recorded. Refer to the data chart below. ...
antarctic and associated exploration book collection
... ۞ "The Miracle of Spacecraft" was the subject of Bob Bravington's very interesting talk. Did you know that nearly 10,000 satellites have been launched in the 50 years since the launch of Explorer 1, and that more than 50% of the nearly 2000 still up there are still working? Covering almost everythin ...
... ۞ "The Miracle of Spacecraft" was the subject of Bob Bravington's very interesting talk. Did you know that nearly 10,000 satellites have been launched in the 50 years since the launch of Explorer 1, and that more than 50% of the nearly 2000 still up there are still working? Covering almost everythin ...
dtu7ech11 - Fort Thomas Independent Schools
... white dwarfs. What sizes are stars? Stars range from more than 1000 times the Sun’s diameter to less than 1/100 the Sun’s diameter. Are most stars isolated from other stars, as the Sun is? No. In the vicinity of the Sun, two-thirds of the stars are found in pairs or larger groups. ...
... white dwarfs. What sizes are stars? Stars range from more than 1000 times the Sun’s diameter to less than 1/100 the Sun’s diameter. Are most stars isolated from other stars, as the Sun is? No. In the vicinity of the Sun, two-thirds of the stars are found in pairs or larger groups. ...
File
... nearly perpendicular to the plane of the ecliptic. 5. The 4 innermost planets all have similar densities and compositions. 6. The 4 outer planets that are gas giants have similar densities and compositions. ...
... nearly perpendicular to the plane of the ecliptic. 5. The 4 innermost planets all have similar densities and compositions. 6. The 4 outer planets that are gas giants have similar densities and compositions. ...
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 ...
Today`s Powerpoint - Physics and Astronomy
... Earth spins on its axis once a day => apparent motion of stars. Aristotle: But there's no wind or parallax (apparent movement of stars). Difficulty with Aristotle's "Geocentric" model: "Retrograde motion of the planets". ...
... Earth spins on its axis once a day => apparent motion of stars. Aristotle: But there's no wind or parallax (apparent movement of stars). Difficulty with Aristotle's "Geocentric" model: "Retrograde motion of the planets". ...
Nonlinear Tides in Exoplanet Host Stars - CIERA
... • Just above threshold, there can be a ~X10 speedup in orbital evolution due to nonlinear dissipation from one daughter pair. Well above threshold numerical simulations of many modes may be necessary, and is under way. ...
... • Just above threshold, there can be a ~X10 speedup in orbital evolution due to nonlinear dissipation from one daughter pair. Well above threshold numerical simulations of many modes may be necessary, and is under way. ...
Powerpoint Presentation (large file)
... • Emission nebulae, or H II regions, are glowing, ionized clouds of gas • Emission nebulae are powered by ultraviolet light that they absorb from nearby hot stars • Reflection nebulae are produced when starlight is reflected from dust grains in the interstellar medium, producing a characteristic blu ...
... • Emission nebulae, or H II regions, are glowing, ionized clouds of gas • Emission nebulae are powered by ultraviolet light that they absorb from nearby hot stars • Reflection nebulae are produced when starlight is reflected from dust grains in the interstellar medium, producing a characteristic blu ...
Microsoft Power Point version
... area of the sun, so its radius and diameter are about 200x the diameter of the sun.l ...
... area of the sun, so its radius and diameter are about 200x the diameter of the sun.l ...