PPT Format - HubbleSOURCE
... a system of two objects in space (usually stars), which are so close that their gravitational interaction causes them to orbit around their common center of mass. ...
... a system of two objects in space (usually stars), which are so close that their gravitational interaction causes them to orbit around their common center of mass. ...
Chapter 28.3 Topic questions
... 19. When all outer layers are blown away what is left? 20. What do we call a white dwarf when it carbon-oxygen core cools completely? 21. Stars that are ______________________ or _________________ times as massive as the sun have a different live cycle. 22. Does a massive star live as long as a mai ...
... 19. When all outer layers are blown away what is left? 20. What do we call a white dwarf when it carbon-oxygen core cools completely? 21. Stars that are ______________________ or _________________ times as massive as the sun have a different live cycle. 22. Does a massive star live as long as a mai ...
No Slide Title
... becomes so dense it collapses in on itself, becoming a single point of zero size! Its gravity is so strong that even light cannot escape from inside a certain boundary - the EVENT HORIZON. The star is now a BLACK HOLE ! Although we will never actually SEE a black hole, we can see their effects. A nu ...
... becomes so dense it collapses in on itself, becoming a single point of zero size! Its gravity is so strong that even light cannot escape from inside a certain boundary - the EVENT HORIZON. The star is now a BLACK HOLE ! Although we will never actually SEE a black hole, we can see their effects. A nu ...
8 clusters stellar evo
... versus initial stellar mass Large stars live and die very quickly! 200 billion years! ...
... versus initial stellar mass Large stars live and die very quickly! 200 billion years! ...
The Hertzsprung-Russell diagram and the nature of stars
... • Physical argument 1: what holds stars up? • Physical argument 2: what powers the stars (where do they get their energy supply?) ...
... • Physical argument 1: what holds stars up? • Physical argument 2: what powers the stars (where do they get their energy supply?) ...
galaxies
... • stars are clumped closely together, especially near the center of the cluster (densely) • surround our disk as a halo Image at http://hubblesite.org/newscenter/archive/releases/star%20cluster/globular /1999/26/image/a/results/50/ ...
... • stars are clumped closely together, especially near the center of the cluster (densely) • surround our disk as a halo Image at http://hubblesite.org/newscenter/archive/releases/star%20cluster/globular /1999/26/image/a/results/50/ ...
Watch the episode titled “The Milky Way” from the series “The
... The Universe – The Milky Way Watch the episode titled “The Milky Way” from the series “The Universe” and completely answer the questions below. ...
... The Universe – The Milky Way Watch the episode titled “The Milky Way” from the series “The Universe” and completely answer the questions below. ...
Star Study Guide Chapter 21 Test
... shows the relationship between absolute brightness and surface temperature of a star ...
... shows the relationship between absolute brightness and surface temperature of a star ...
PDF version (two pages, including the full text)
... Southern Cross and the Pointers (Alpha and Beta Centauri). Alpha Centauri is a triple system, with two sun like stars orbiting each other every 80 years and a dim red dwarf tagging along at a much larger distance. This star was discovered by Robert Innes at the Union Observatory in Johannesburg in 1 ...
... Southern Cross and the Pointers (Alpha and Beta Centauri). Alpha Centauri is a triple system, with two sun like stars orbiting each other every 80 years and a dim red dwarf tagging along at a much larger distance. This star was discovered by Robert Innes at the Union Observatory in Johannesburg in 1 ...
Document
... • Several layers: core – photosphere ( part of the sun that gives off light energy, innermost layer)-chromosphere-corona • Sunspots-dark spots on the sun on the photosphere, they are dark because it is not as hot, cooler, than the rest of the photosphere Prominences: ribbons of gas that leap out of ...
... • Several layers: core – photosphere ( part of the sun that gives off light energy, innermost layer)-chromosphere-corona • Sunspots-dark spots on the sun on the photosphere, they are dark because it is not as hot, cooler, than the rest of the photosphere Prominences: ribbons of gas that leap out of ...
Handout 3 1-2 ppt
... Fifty thousand years ago, a giant fireball streaked across the North American sky. It struck the earth in what is now northern Arizona, exploding with the force of 2 ½ million tons of TNT. ...
... Fifty thousand years ago, a giant fireball streaked across the North American sky. It struck the earth in what is now northern Arizona, exploding with the force of 2 ½ million tons of TNT. ...
Seasonal Motion
... Example: In Winter sun in Sagittarius, Gemini at night sky; in summer sun in Gemini, Sagittarius at night sky ...
... Example: In Winter sun in Sagittarius, Gemini at night sky; in summer sun in Gemini, Sagittarius at night sky ...
Objects Beyond our Solar System
... These stars are very small, just a few km across but they still have a mass that is as great as the sun. The gravity of these stars are incredible; if you dropped a marshmallow onto the surface of a neutron star it would have as much energy as a nuclear bomb! ...
... These stars are very small, just a few km across but they still have a mass that is as great as the sun. The gravity of these stars are incredible; if you dropped a marshmallow onto the surface of a neutron star it would have as much energy as a nuclear bomb! ...
Stars - Mc Guckin Science
... faster than smaller stars – Their main sequence may last only a few hundred thousand years – Smaller stars will live on for billions of years because they burn their fuel much more slowly ...
... faster than smaller stars – Their main sequence may last only a few hundred thousand years – Smaller stars will live on for billions of years because they burn their fuel much more slowly ...
Document
... Stellar Properties/Evolution Review Sheet 1. It has been determined that all stars have the same general composition (90% H, 9% He, trace amounts of heavy elements). If this is the case, explain why stars of different temperatures show different spectral line patterns. ...
... Stellar Properties/Evolution Review Sheet 1. It has been determined that all stars have the same general composition (90% H, 9% He, trace amounts of heavy elements). If this is the case, explain why stars of different temperatures show different spectral line patterns. ...
Powerpoint Presentation (large file)
... Clumps of glowing gas called Herbig-Haro objects are sometimes found along these jets and at their ends ...
... Clumps of glowing gas called Herbig-Haro objects are sometimes found along these jets and at their ends ...
Distances to Stars: Parsecs and Light Years
... distance of 1.5 miles • The Light Year = (2.9979E+08 m/sec)*(3.156E+07 sec) = 9.461E+15 m. Alpha Centauri is 4.3 light years away • 1 parsec = 3.26 ly ...
... distance of 1.5 miles • The Light Year = (2.9979E+08 m/sec)*(3.156E+07 sec) = 9.461E+15 m. Alpha Centauri is 4.3 light years away • 1 parsec = 3.26 ly ...
Stars and Galaxies
... • Stars more massive than our Sun may be main sequence stars for only 10 million years • Stars less massive than our Sun may be main sequence stars for 100’s of billions of years • Remember: the larger the star the shorter the life span, the smaller the star the longer the life span ...
... • Stars more massive than our Sun may be main sequence stars for only 10 million years • Stars less massive than our Sun may be main sequence stars for 100’s of billions of years • Remember: the larger the star the shorter the life span, the smaller the star the longer the life span ...
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.