ASTRONOMY: WHAT DO YOU NEED TO KNOW
... What is a pulsar and does it actually pulse? What does it do? It is a spinning neutron star that emits radio waves form excited gases trapped in the star’s magnetic field. It doesn’t actually pulse, rather it appears to blink on and off as it rotates towards and away from the sight-line of Earth Wha ...
... What is a pulsar and does it actually pulse? What does it do? It is a spinning neutron star that emits radio waves form excited gases trapped in the star’s magnetic field. It doesn’t actually pulse, rather it appears to blink on and off as it rotates towards and away from the sight-line of Earth Wha ...
CHAP
... - Cool stars appear _________ in color with a surface temperature of about 3,200 degrees Celsius. - Warm stars appear _____________ in color with a surface temperature of about 5,500 degrees Celsius. - The hottest stars are ____________ in color and have a surface temperature over 20,000 degrees Cel ...
... - Cool stars appear _________ in color with a surface temperature of about 3,200 degrees Celsius. - Warm stars appear _____________ in color with a surface temperature of about 5,500 degrees Celsius. - The hottest stars are ____________ in color and have a surface temperature over 20,000 degrees Cel ...
Standard Set 2 - Atascadero High School
... Way galaxy is a disc-shaped spiral galaxy with a bulging spherical center of stars is obtained from the location of stars in the galaxy. If viewed under a low-powered telescope from a planet in another galaxy, the Milky Way would look like a fuzzy patch of light. If viewed with more powerful telesco ...
... Way galaxy is a disc-shaped spiral galaxy with a bulging spherical center of stars is obtained from the location of stars in the galaxy. If viewed under a low-powered telescope from a planet in another galaxy, the Milky Way would look like a fuzzy patch of light. If viewed with more powerful telesco ...
6th Grade Science Chapter 19 Jeopardy Game
... b. A star does not change its’ size or temperature during its’ life. c. The shortest stage in a star’s life cycle is the main sequence. ...
... b. A star does not change its’ size or temperature during its’ life. c. The shortest stage in a star’s life cycle is the main sequence. ...
The HR Diagram - Faculty Web Pages
... brightnesses. Now let's see if we can find some relationships between these stellar properties. We know that hotter stars are brighter, as described by the Stefan-Boltzmann Law, and we know that the hotter stars are also bluer, as described by Wien's Law. The H-R diagram is a way of displaying an im ...
... brightnesses. Now let's see if we can find some relationships between these stellar properties. We know that hotter stars are brighter, as described by the Stefan-Boltzmann Law, and we know that the hotter stars are also bluer, as described by Wien's Law. The H-R diagram is a way of displaying an im ...
1” “Sky-Notes” of the Open University Astronomy Club. April 2005
... NGC3226 (11.4) and NGC3227 (10.8) about 1o east of form a close interacting pair of galaxies. NGC3351 (M95) (9.7) sg, NGC 3368 (M96) (9.2) sg and NGC 3379 (M105) (9.3) eg. An excellent trio in the same low power field located about 3o south of 52 Leo. Close to M105 is NGC 3384 (10.0) eg. NGC3623 ( ...
... NGC3226 (11.4) and NGC3227 (10.8) about 1o east of form a close interacting pair of galaxies. NGC3351 (M95) (9.7) sg, NGC 3368 (M96) (9.2) sg and NGC 3379 (M105) (9.3) eg. An excellent trio in the same low power field located about 3o south of 52 Leo. Close to M105 is NGC 3384 (10.0) eg. NGC3623 ( ...
Sizing Up The Universe
... Small Magellanic Cloud. They were all at approximately the same distance, so their relative luminosity as a function of their period of variability could be determined. From 1923 to 1924 Edwin Hubble (1889–1953) observed the Andromeda galaxy (M31) with the 100-inch-diameter telescope on Mount Wilson ...
... Small Magellanic Cloud. They were all at approximately the same distance, so their relative luminosity as a function of their period of variability could be determined. From 1923 to 1924 Edwin Hubble (1889–1953) observed the Andromeda galaxy (M31) with the 100-inch-diameter telescope on Mount Wilson ...
Life of stars, formation of elements
... • Only a few of its stars close to the near edge can be seen in visible light. • Infrared light penetrates dust & shows many more stars. ...
... • Only a few of its stars close to the near edge can be seen in visible light. • Infrared light penetrates dust & shows many more stars. ...
Document
... 107/T where l’max is the wavelength at which In is max) Class Problem: Calculate the wavelength at which In is maximum in the Sun and at which Il is maximum in the Sun Class Problem: What is the spectral type of a main sequence star in which Il is maximum at H-alpha? A giant star? ...
... 107/T where l’max is the wavelength at which In is max) Class Problem: Calculate the wavelength at which In is maximum in the Sun and at which Il is maximum in the Sun Class Problem: What is the spectral type of a main sequence star in which Il is maximum at H-alpha? A giant star? ...
The most important questions to study for the exam
... 7. Why is the main sequence so named? • It contains the biggest and brightest stars. • It contains the greatest number of stars. • It consists almost entirely of hot, bright stars. 8. A certain star is seen to have a relatively low surface temperature but a very high luminosity. What can we conclude ...
... 7. Why is the main sequence so named? • It contains the biggest and brightest stars. • It contains the greatest number of stars. • It consists almost entirely of hot, bright stars. 8. A certain star is seen to have a relatively low surface temperature but a very high luminosity. What can we conclude ...
A105 Stars and Galaxies
... nuclear reactions until they have converted all the hydrogen and helium in their cores into iron. • Once the core is iron, no more energy can be generated • The core collapses and the star explodes ...
... nuclear reactions until they have converted all the hydrogen and helium in their cores into iron. • Once the core is iron, no more energy can be generated • The core collapses and the star explodes ...
PHYSICS 113 Practice Questions #2
... b. a small disk of gas and dust surrounding a single star that was recently formed c. a cloud o f gas and du st illuminated by th e light of newly form ed stars within it d. the remnant of a star that exploded several thousand years ago e. an illusion caused by activity in the Earth's upper atmosphe ...
... b. a small disk of gas and dust surrounding a single star that was recently formed c. a cloud o f gas and du st illuminated by th e light of newly form ed stars within it d. the remnant of a star that exploded several thousand years ago e. an illusion caused by activity in the Earth's upper atmosphe ...
Stars - MrCrabtreesScience
... • Pressure from the core balance pressure from above layers, particles don’t move. • Energy bounces around inside this layer for an average of 170,000 years. • 7-2,000,000 K ...
... • Pressure from the core balance pressure from above layers, particles don’t move. • Energy bounces around inside this layer for an average of 170,000 years. • 7-2,000,000 K ...
STUDY GUIDE:
... system explode in the course of a day. Temporarily, this can make their system 300,000 times brighter than the sun. This brightness lasts for a few days or weeks, and then lessens gradually, leaving the stars about the same as they were before. In 1992, Nova Cygni, in the northern constellation Cygn ...
... system explode in the course of a day. Temporarily, this can make their system 300,000 times brighter than the sun. This brightness lasts for a few days or weeks, and then lessens gradually, leaving the stars about the same as they were before. In 1992, Nova Cygni, in the northern constellation Cygn ...
Cassiopeia (constellation)
Cassiopeia is a constellation in the northern sky, named after the vain queen Cassiopeia in Greek mythology, who boasted about her unrivalled beauty. Cassiopeia was one of the 48 constellations listed by the 2nd-century Greek astronomer Ptolemy, and it remains one of the 88 modern constellations today. It is easily recognizable due to its distinctive 'M' shape when in upper culmination but in higher northern locations when near lower culminations in spring and summer it has a 'W' shape, formed by five bright stars. It is bordered by Andromeda to the south, Perseus to the southeast, and Cepheus to the north. It is opposite the Big Dipper.In northern locations above 34ºN latitude it is visible year-round and in the (sub)tropics it can be seen at its clearest from September to early November in its characteristic 'M' shape. Even in low southern latitudes below 25ºS is can be seen low in the North.