The Sun PPT
... A star is a huge sphere of very hot, glowing gas. Stars produce their own light and energy by a process called nuclear fusion. Fusion happens when lighter elements are forced to become heavier elements. When this happens, a tremendous amount of energy is created causing the star to heat up and shine ...
... A star is a huge sphere of very hot, glowing gas. Stars produce their own light and energy by a process called nuclear fusion. Fusion happens when lighter elements are forced to become heavier elements. When this happens, a tremendous amount of energy is created causing the star to heat up and shine ...
Lesson 2 Power Notes Outline
... Energy is transferred from the sun’s core to the photosphere and escapes into space as visible light, other forms of radiation, heat, and wind. ...
... Energy is transferred from the sun’s core to the photosphere and escapes into space as visible light, other forms of radiation, heat, and wind. ...
Red Dwarfs and Barnard`s star. Their origin and significance to
... eye; however, it is much brighter in the infrared than it is in visible light. Barnard’s star is thought to be 10 billion years old and older than our galaxy. It must have been captured from elsewhere. Bernard’s star is travelling towards us at a very high speed. It will become closer to us than Pro ...
... eye; however, it is much brighter in the infrared than it is in visible light. Barnard’s star is thought to be 10 billion years old and older than our galaxy. It must have been captured from elsewhere. Bernard’s star is travelling towards us at a very high speed. It will become closer to us than Pro ...
Assessment Schedule
... Supernova gives out clouds of gases and plasma exploding off its surface. AND These gas clouds are the birth places for new stars. AND After this process ceases, a black hole or a dense neutron star remains (detail provided about the formation). Eg: The core of the star then collapses, combining pro ...
... Supernova gives out clouds of gases and plasma exploding off its surface. AND These gas clouds are the birth places for new stars. AND After this process ceases, a black hole or a dense neutron star remains (detail provided about the formation). Eg: The core of the star then collapses, combining pro ...
The Earth and Beyond
... 2) If the red giant is VERY BIG it will shrink and then EXPLODE, releasing massive amounts of energy, dust and gas. ...
... 2) If the red giant is VERY BIG it will shrink and then EXPLODE, releasing massive amounts of energy, dust and gas. ...
Level 2 Science (90764) 2011 Assessment Schedule
... Supernova gives out clouds of gases and plasma exploding off its surface. AND These gas clouds are the birth places for new stars. AND After this process ceases, a black hole or a dense neutron star remains (detail provided about the formation). Eg: The core of the star then collapses, combining pro ...
... Supernova gives out clouds of gases and plasma exploding off its surface. AND These gas clouds are the birth places for new stars. AND After this process ceases, a black hole or a dense neutron star remains (detail provided about the formation). Eg: The core of the star then collapses, combining pro ...
Space Science Distance Definitions
... Parallax Effect in Stars • The stars are so far away that observing a star from opposite sides of the Earth would produce a parallax angle much, much too small to detect. We need to use as large a baseline as possible. The largest one we can easily use is the orbit of the Earth. In this case the ba ...
... Parallax Effect in Stars • The stars are so far away that observing a star from opposite sides of the Earth would produce a parallax angle much, much too small to detect. We need to use as large a baseline as possible. The largest one we can easily use is the orbit of the Earth. In this case the ba ...
07 September: The Solar System in a Stellar Context
... Voyager is a long ways out there • Light takes over 14 hours to reach Voyager from Earth. • Round-trip time is over a day! ...
... Voyager is a long ways out there • Light takes over 14 hours to reach Voyager from Earth. • Round-trip time is over a day! ...
Time From the Perspective of a Particle Physicist
... • If we use well-understood close stars to determine the overall brightness scale of a specific class of star, then measuring the spectrum can be used to give the distance for stars > 500 LY away 1. Determine Surface Temperature + spectral class of star 2. Determine where on HR diagram should go 3. ...
... • If we use well-understood close stars to determine the overall brightness scale of a specific class of star, then measuring the spectrum can be used to give the distance for stars > 500 LY away 1. Determine Surface Temperature + spectral class of star 2. Determine where on HR diagram should go 3. ...
Exam Study Guide
... masses. This is because … 91. If the Sun were replaced by a 1-solar-mass black hole, how would the Earth be affected? 92. A massive star becomes a supernova when it … 93. Nuclear fusion in the Sun will create which element? For Questions 94 through 97, match the provided nucleosynthesis process with ...
... masses. This is because … 91. If the Sun were replaced by a 1-solar-mass black hole, how would the Earth be affected? 92. A massive star becomes a supernova when it … 93. Nuclear fusion in the Sun will create which element? For Questions 94 through 97, match the provided nucleosynthesis process with ...
HR Diagram
... 10. Apparent Brightness: Explain why the Sun, an average size star with a medium temperature, appears so much brighter than all other stars in the sky. __________________________________________________________________________________________ _________________________________________________________ ...
... 10. Apparent Brightness: Explain why the Sun, an average size star with a medium temperature, appears so much brighter than all other stars in the sky. __________________________________________________________________________________________ _________________________________________________________ ...
Stellar Evolution Game (PDF: 112k)
... 1. Teach students to read an HR diagram. Students will need to use this information to answer the questions during the game. 2. Students will also need to be knowledgeable about basic stellar evolution pathways for stars based on their masses. 3. Copy a set of the game cards on matching colored pape ...
... 1. Teach students to read an HR diagram. Students will need to use this information to answer the questions during the game. 2. Students will also need to be knowledgeable about basic stellar evolution pathways for stars based on their masses. 3. Copy a set of the game cards on matching colored pape ...
Part 1: If a 10000 K blackbody has a wavelength of peak emission at
... core)) which applies so much pressure to the outer layers of the star that they are just driven off completely thus exposing the inner hot core. Those outer layers also see a hotter star and become ionized and the ionizing gas glows, thus forming the extended, observed nebula. ...
... core)) which applies so much pressure to the outer layers of the star that they are just driven off completely thus exposing the inner hot core. Those outer layers also see a hotter star and become ionized and the ionizing gas glows, thus forming the extended, observed nebula. ...
Stellar temperatures and spectral types
... • In practice, there are some problems with each of these methods… ...
... • In practice, there are some problems with each of these methods… ...
Test #4
... c) The source of energy must be relatively small. d) The energy source must be rapidly rotating. ...
... c) The source of energy must be relatively small. d) The energy source must be rapidly rotating. ...
Astronomy C - Scioly.org
... 50. What is the term for a jet of gas ejected from a protostar that glows brightly as it collides with the interstellar medium? 51. What is the upper mass limit for pre-main sequence stars? 52. Why does this limit exist? ...
... 50. What is the term for a jet of gas ejected from a protostar that glows brightly as it collides with the interstellar medium? 51. What is the upper mass limit for pre-main sequence stars? 52. Why does this limit exist? ...
Interstellar Medium and Star Formation
... Extinction was known since 1847 (though not taken seriously in Galaxy models) Reddening discovered by Trumpler (1930) Wavelength dependence established obscuration as due to small particles Reddening proportional to NH ...
... Extinction was known since 1847 (though not taken seriously in Galaxy models) Reddening discovered by Trumpler (1930) Wavelength dependence established obscuration as due to small particles Reddening proportional to NH ...
Answers for the HST Scavenger Hunt
... Give a definition of these kinds of stars. Hot, dense remains of a low-mass star like our Sun that has exhausted its sources of fuel for thermonuclear fusion. What is a Wolf-Rayet Star? Massive stars, which are usually are surrounded by outflowing gas clouds. How is this star type different from whi ...
... Give a definition of these kinds of stars. Hot, dense remains of a low-mass star like our Sun that has exhausted its sources of fuel for thermonuclear fusion. What is a Wolf-Rayet Star? Massive stars, which are usually are surrounded by outflowing gas clouds. How is this star type different from whi ...
Lec6
... We measure mass using gravity Direct mass measurements are possible only for stars in binary star systems ...
... We measure mass using gravity Direct mass measurements are possible only for stars in binary star systems ...
Star Classification - University of Louisville
... surface temperatures are much higher, and shine white instead of red. When the Sun comes to the end of its life, it will become a White Dwarf. It will be much smaller than it is now, not quite as bright but twice as hot. Its matter (particles) will be more densely-packed together. ...
... surface temperatures are much higher, and shine white instead of red. When the Sun comes to the end of its life, it will become a White Dwarf. It will be much smaller than it is now, not quite as bright but twice as hot. Its matter (particles) will be more densely-packed together. ...
Star formation
Star formation is the process by which dense regions within molecular clouds in interstellar space, sometimes referred to as ""stellar nurseries"" or ""star-forming regions"", collapse to form stars. As a branch of astronomy, star formation includes the study of the interstellar medium (ISM) and giant molecular clouds (GMC) as precursors to the star formation process, and the study of protostars and young stellar objects as its immediate products. It is closely related to planet formation, another branch of astronomy. Star formation theory, as well as accounting for the formation of a single star, must also account for the statistics of binary stars and the initial mass function.In June 2015, astronomers reported evidence for Population III stars in the Cosmos Redshift 7 galaxy at z = 6.60. Such stars are likely to have existed in the very early universe (i.e., at high redshift), and may have started the production of chemical elements heavier than hydrogen that are needed for the later formation of planets and life as we know it.