PowerPoint Presentation - ASTR498E High energy
... The area under consideration must be oriented face-on to lineof-sight to the star In principle, this definition works for any kind of energy emitted by the star… most commonly, we mean e/m radiation Sometimes, it is useful to consider the observed flux in a restricted range of e/m wavelengths (e.g., ...
... The area under consideration must be oriented face-on to lineof-sight to the star In principle, this definition works for any kind of energy emitted by the star… most commonly, we mean e/m radiation Sometimes, it is useful to consider the observed flux in a restricted range of e/m wavelengths (e.g., ...
NS2-M3C17_-_The_Stars_Exam
... Outside of the Milky Way, in the Magellanic Cloud. In regions where there is little dust and gas. In the spiral arms of the Milky Way galaxy. In regions where there is a great deal of dust and gas. ...
... Outside of the Milky Way, in the Magellanic Cloud. In regions where there is little dust and gas. In the spiral arms of the Milky Way galaxy. In regions where there is a great deal of dust and gas. ...
Big bang and Stars
... Distant galaxies are moving away from each other – Doppler Red Shift. Hubble (1929) – the farther away the galaxy is the ...
... Distant galaxies are moving away from each other – Doppler Red Shift. Hubble (1929) – the farther away the galaxy is the ...
Review Game
... 31) Dense clouds of ________ and gas are probably the birthplaces of stars. 32) The solar photosphere is not uniform in brightness, but has a mottled appearance termed: 33) On the main sequence, type ________ stars will be stable only a million years or so. 34) The age of a star cluster may be estim ...
... 31) Dense clouds of ________ and gas are probably the birthplaces of stars. 32) The solar photosphere is not uniform in brightness, but has a mottled appearance termed: 33) On the main sequence, type ________ stars will be stable only a million years or so. 34) The age of a star cluster may be estim ...
HR Diagram
... H-R Diagram Scientists began to learn about stars by observing properties of stars, including brightness and color. Astronomers tried to make sense of the star data by grouping together stars with similar properties. The Hertzsprung-Russell diagram provides a way to group similar stars. The H-R dia ...
... H-R Diagram Scientists began to learn about stars by observing properties of stars, including brightness and color. Astronomers tried to make sense of the star data by grouping together stars with similar properties. The Hertzsprung-Russell diagram provides a way to group similar stars. The H-R dia ...
What is a Star?
... 40 trillion km from the sun. (more than 260,000AU) • Light takes 4.2 years to reach Earth. ...
... 40 trillion km from the sun. (more than 260,000AU) • Light takes 4.2 years to reach Earth. ...
Which property of a star would not change if we could observe it
... • A star emits light in all directions, like a light bulb. We see the photons that are heading in our direction • As you move away from the star, fewer and fewer photons are heading directly for us, so the star seems to ...
... • A star emits light in all directions, like a light bulb. We see the photons that are heading in our direction • As you move away from the star, fewer and fewer photons are heading directly for us, so the star seems to ...
Stars - winterk
... Lower-mass stars can undergo this process for up to 100 BILLION years! Stars like the Sun can last for about 10 billion years Higher-mass stars produce energy for only a few million years Fast-burning, hot (blue) stars only last for a million years… yikes! ...
... Lower-mass stars can undergo this process for up to 100 BILLION years! Stars like the Sun can last for about 10 billion years Higher-mass stars produce energy for only a few million years Fast-burning, hot (blue) stars only last for a million years… yikes! ...
Slide 1 - Physics @ IUPUI
... thing when it comes to observing the star (hint, when can a good telescope look at stars?)? ...
... thing when it comes to observing the star (hint, when can a good telescope look at stars?)? ...
Introduction to Stars ppt
... detector, such as a CCD, that records how much energy strikes its light-sensitive surface each second. Total luminosity and total apparent brightness take into account all photons across the entire electromagnetic spectrum. Once a star’s apparent brightness has been measured, the next step in determ ...
... detector, such as a CCD, that records how much energy strikes its light-sensitive surface each second. Total luminosity and total apparent brightness take into account all photons across the entire electromagnetic spectrum. Once a star’s apparent brightness has been measured, the next step in determ ...
October 2013
... and is typical of areas where new stars can form. Between the Scorpion and the Centaur are the Altar, the Level and the Wolf, while to the east of the Milky Way stretches a great expanse of sky with relatively few bright stars, dominated by birds and 'water constellations'. In the south these includ ...
... and is typical of areas where new stars can form. Between the Scorpion and the Centaur are the Altar, the Level and the Wolf, while to the east of the Milky Way stretches a great expanse of sky with relatively few bright stars, dominated by birds and 'water constellations'. In the south these includ ...
Aspire: Star Life Cycle - Easy Peasy All-in
... 19. Complete the table for the correct temperature and brightness of each star. (10 Points) Temperature Brightness Betelgeuse Alpha Centauri B Our Sun Vega Sirius B I. Click on the image to start the next activity. ...
... 19. Complete the table for the correct temperature and brightness of each star. (10 Points) Temperature Brightness Betelgeuse Alpha Centauri B Our Sun Vega Sirius B I. Click on the image to start the next activity. ...
ReviewQuestionsForClass
... How do size, temperature, and distance to a star affect its brightness? Which stars on the main sequence are the brightest? Hottest? Biggest? Bluest? Live the longest? What are the different astronomical objects? Comets, nebulae, main sequence stars, red giants, white dwarves, planetary nebulae, bin ...
... How do size, temperature, and distance to a star affect its brightness? Which stars on the main sequence are the brightest? Hottest? Biggest? Bluest? Live the longest? What are the different astronomical objects? Comets, nebulae, main sequence stars, red giants, white dwarves, planetary nebulae, bin ...
Stars
... COMPOSITION OF STARS ______ 5. The band of colors produced when white light passes through a prism is a(n) a. color wheel. b. emission line. c. ultraviolet light. d. spectrum. ______ 6. A hot, solid object gives off a(n) a. continuous spectrum. b. absorption spectrum. c. emission line. d. partial sp ...
... COMPOSITION OF STARS ______ 5. The band of colors produced when white light passes through a prism is a(n) a. color wheel. b. emission line. c. ultraviolet light. d. spectrum. ______ 6. A hot, solid object gives off a(n) a. continuous spectrum. b. absorption spectrum. c. emission line. d. partial sp ...
Stars_and_Galaxies
... Starlight, Starbright • The stars that are closer to us appear to be brighter • Stars shine because of fusion in its core. Two hydrogen atoms fuse into one helium atom. • This is why a star shines for billions of years! ...
... Starlight, Starbright • The stars that are closer to us appear to be brighter • Stars shine because of fusion in its core. Two hydrogen atoms fuse into one helium atom. • This is why a star shines for billions of years! ...
Chapter 10 Measuring the Stars: Giants, Dwarfs, and the Main
... Stellar Motion * Stars have transverse and radial motion • Transverse - perpendicular to line of sight • Radial - along our line of sight * ___________________ - annual movement of a star across the sky as seen from Earth • _____________________ has the largest known proper motion of any star – 10.3 ...
... Stellar Motion * Stars have transverse and radial motion • Transverse - perpendicular to line of sight • Radial - along our line of sight * ___________________ - annual movement of a star across the sky as seen from Earth • _____________________ has the largest known proper motion of any star – 10.3 ...
Star Formation
... *Luminosity is how much energy the star emits *Absolute Magnitude is how bright the star would be if it was 10 parsecs away *B-V is a color metric, the difference in magnitude between the blue astronomical filter and the visible light filter *see The Brightness of Stars ppt. ...
... *Luminosity is how much energy the star emits *Absolute Magnitude is how bright the star would be if it was 10 parsecs away *B-V is a color metric, the difference in magnitude between the blue astronomical filter and the visible light filter *see The Brightness of Stars ppt. ...
Stars on the HR Diagram
... 1. Plot the Absolute Magnitude (luminosity/intrinsic brightness) versus Temperature (measured in degrees Kelvin) of stars on the Chart for H-R Diagram (page 3) using data from the Table of Star Data (page 2). 2. Use one colored pencil to plot the nearest stars, 15 light years from the sun or closer, ...
... 1. Plot the Absolute Magnitude (luminosity/intrinsic brightness) versus Temperature (measured in degrees Kelvin) of stars on the Chart for H-R Diagram (page 3) using data from the Table of Star Data (page 2). 2. Use one colored pencil to plot the nearest stars, 15 light years from the sun or closer, ...
What are yellow stars?
... a Yellow Star in the sky. But not all stars are yellow, most of them are red dwarf stars. • The Biggest stars usually live the youngest, and the smallest Stars live the shortest. • Pure Yellow Stars are difficult to see. ...
... a Yellow Star in the sky. But not all stars are yellow, most of them are red dwarf stars. • The Biggest stars usually live the youngest, and the smallest Stars live the shortest. • Pure Yellow Stars are difficult to see. ...
How Is a Star`s Color Related to Its Temperature?
... 3. Stars with surface temperatures up to 3,500 K are red. Shade a vertical band from 2000 K to 3500 K a light red. 4. Shade other color bands as follows: Stars up to 5000 K are orange-red, up to 6000 K yellow-white, up to 7500 K blue-white, and up to 40,000 K blue. 5. Look for patterns in your graph ...
... 3. Stars with surface temperatures up to 3,500 K are red. Shade a vertical band from 2000 K to 3500 K a light red. 4. Shade other color bands as follows: Stars up to 5000 K are orange-red, up to 6000 K yellow-white, up to 7500 K blue-white, and up to 40,000 K blue. 5. Look for patterns in your graph ...
Lab 5 Takehome
... Figure 2 shows the same stars, but here what’s plotted is the apparent brightness of the star as seen from the Earth, instead of the luminosity. The vertical axis is scaled so that 1.0 represe ...
... Figure 2 shows the same stars, but here what’s plotted is the apparent brightness of the star as seen from the Earth, instead of the luminosity. The vertical axis is scaled so that 1.0 represe ...
powerpoint - Physics @ IUPUI
... Absolute Magnitude • RR Lyrae have an average absolute magnitude of 0.75. • Why is that an advantage? • What is the disadvantage if you are looking at other galaxies? ...
... Absolute Magnitude • RR Lyrae have an average absolute magnitude of 0.75. • Why is that an advantage? • What is the disadvantage if you are looking at other galaxies? ...
A Star is “Born,” and then How Will it Move
... Young (Embedded) Clusters: Very young (<10 Myr-old) groups of young stars that form together. Future binding depends on cluster mass & velocity, seems that 90% dissolve before ~10 Myr (Lada & Lada 2003). When they unbind but are still seen to move together, they’re known as a “stellar association.” ...
... Young (Embedded) Clusters: Very young (<10 Myr-old) groups of young stars that form together. Future binding depends on cluster mass & velocity, seems that 90% dissolve before ~10 Myr (Lada & Lada 2003). When they unbind but are still seen to move together, they’re known as a “stellar association.” ...
Solutions 5
... In high-mass stars everything takes place more rapidly. Greater mass means greater gravity and the protostar process is accelerated. Greater mass leads to greater core pressures and temperatures, thus, a hotter more luminous star. The greater mass star consumes the available hydrogen at a much highe ...
... In high-mass stars everything takes place more rapidly. Greater mass means greater gravity and the protostar process is accelerated. Greater mass leads to greater core pressures and temperatures, thus, a hotter more luminous star. The greater mass star consumes the available hydrogen at a much highe ...
Star catalogue
A star catalogue, or star catalog, is an astronomical catalogue that lists stars. In astronomy, many stars are referred to simply by catalogue numbers. There are a great many different star catalogues which have been produced for different purposes over the years, and this article covers only some of the more frequently quoted ones. Star catalogues were compiled by many different ancient peoples, including the Babylonians, Greeks, Chinese, Persians, and Arabs. Most modern catalogues are available in electronic format and can be freely downloaded from NASA's Astronomical Data Center.Completeness and accuracy is described by the weakest apparent magnitude V (largest number) and the accuracy of the positions.