Participant Handout - Math Machines Home
... a very large “red giant,” with a diameter about 600 times that of our Sun. (If our Sun were that large, it would engulf the Earth and extend well beyond the orbit of Mars.) The actual power of a star (the quantity of light it emits per second) is called its “luminosity” and can be measured either in ...
... a very large “red giant,” with a diameter about 600 times that of our Sun. (If our Sun were that large, it would engulf the Earth and extend well beyond the orbit of Mars.) The actual power of a star (the quantity of light it emits per second) is called its “luminosity” and can be measured either in ...
Islip Invitational 2013 Astronomy Examination Student
... b. When a group of stars form, they remove so much material from the cloud that only a big empty place is left, into which new matter from other clouds falls, creating more stars. c. When massive stars form, their UV radiation and later their final explosions compress the gas in the cloud and cause ...
... b. When a group of stars form, they remove so much material from the cloud that only a big empty place is left, into which new matter from other clouds falls, creating more stars. c. When massive stars form, their UV radiation and later their final explosions compress the gas in the cloud and cause ...
Exploring Stars - Discovery Education
... Definition: an intermediate stage of a star’s evolution during which the hydrogen fuel supply begins to run out the star’s core contracts; the outer shell begins to expand and, because it is also cooling, glows red Context: The sun will become a red giant in about five billion years. supernova Defin ...
... Definition: an intermediate stage of a star’s evolution during which the hydrogen fuel supply begins to run out the star’s core contracts; the outer shell begins to expand and, because it is also cooling, glows red Context: The sun will become a red giant in about five billion years. supernova Defin ...
Measuring the ligth
... We have seen how the flux received on earth depended strongly on the object’s distance, more precisely according to the inverse of the squared distance. The intensity, I, however is of great interest because it doesn’t depend on the distance. Effectively, the true area at the source is that of a sol ...
... We have seen how the flux received on earth depended strongly on the object’s distance, more precisely according to the inverse of the squared distance. The intensity, I, however is of great interest because it doesn’t depend on the distance. Effectively, the true area at the source is that of a sol ...
center of mass
... light intensity changes with distance, and how the stellar magnitude system is set up to determine the following. If a star's apparent visual magnitude is less than its absolute visual magnitude, which of the following is correct? a. The distance to the star is less than 10 parsecs. b. The distance ...
... light intensity changes with distance, and how the stellar magnitude system is set up to determine the following. If a star's apparent visual magnitude is less than its absolute visual magnitude, which of the following is correct? a. The distance to the star is less than 10 parsecs. b. The distance ...
Chapter 09
... light intensity changes with distance, and how the stellar magnitude system is set up to determine the following. If a star's apparent visual magnitude is less than its absolute visual magnitude, which of the following is correct? a. The distance to the star is less than 10 parsecs. b. The distance ...
... light intensity changes with distance, and how the stellar magnitude system is set up to determine the following. If a star's apparent visual magnitude is less than its absolute visual magnitude, which of the following is correct? a. The distance to the star is less than 10 parsecs. b. The distance ...
Red Giants - Faculty Web Pages
... Most blue stars are Main Sequence stars. But whereas some red stars in the list are simply tiny, cool Main Sequence stars, other red stars of the exact same color are huge Red Giants! Telling the difference between the Main Sequence red stars and the Red Giant stars involves some complex measurement ...
... Most blue stars are Main Sequence stars. But whereas some red stars in the list are simply tiny, cool Main Sequence stars, other red stars of the exact same color are huge Red Giants! Telling the difference between the Main Sequence red stars and the Red Giant stars involves some complex measurement ...
If you wish to a copy of this months Night Sky News
... Castor B is now also known to be a spectroscopic binary whose components are even closer, at only 4.5 million km distance and having an orbital period of only three days. A distant 9th mag. companion star was also discovered 150 billion km (1000 AU) distant from the A-B pair. It was also detected as ...
... Castor B is now also known to be a spectroscopic binary whose components are even closer, at only 4.5 million km distance and having an orbital period of only three days. A distant 9th mag. companion star was also discovered 150 billion km (1000 AU) distant from the A-B pair. It was also detected as ...
Star in a Box
... In fact, most stars can be found somewhere along a line in this graph. Some stars are much cooler and less luminous, such calledstar the to “Main Sequence”. asThis the isclosest the Sun, Proxima Centauri. Where would you plot these? ...
... In fact, most stars can be found somewhere along a line in this graph. Some stars are much cooler and less luminous, such calledstar the to “Main Sequence”. asThis the isclosest the Sun, Proxima Centauri. Where would you plot these? ...
CONSTELLATION CEPHEUS, KING OF ETHIOPIA Cepheus is a
... one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and remains one of the 88 modern constellations. Its brightest star is Alpha Cephei with an apparent magnitude of 3.5. Delta Cephei is the prototype of an important class of star known as a Cepheid variable, a yellow-hued sup ...
... one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and remains one of the 88 modern constellations. Its brightest star is Alpha Cephei with an apparent magnitude of 3.5. Delta Cephei is the prototype of an important class of star known as a Cepheid variable, a yellow-hued sup ...
Astronomy
... 15. Why is the helium burning stage of a star so much shorter than the hydrogen burning stage? A) Because the star is more luminous and the burning produces less energy per fusion B) Because the star is less luminous and the burning produces less energy per fusion C) Because the star is more luminou ...
... 15. Why is the helium burning stage of a star so much shorter than the hydrogen burning stage? A) Because the star is more luminous and the burning produces less energy per fusion B) Because the star is less luminous and the burning produces less energy per fusion C) Because the star is more luminou ...
Document
... 24. Suppose we know the brightness of a star. What additional information would allow us to determine the distance to the star? A) Luminosity B) Temperature C) Radius D) Mass E) Color 25. Just before a high mass star starts to undergo a massive star supernova, the core is made primarily of A) Helium ...
... 24. Suppose we know the brightness of a star. What additional information would allow us to determine the distance to the star? A) Luminosity B) Temperature C) Radius D) Mass E) Color 25. Just before a high mass star starts to undergo a massive star supernova, the core is made primarily of A) Helium ...
HR diagram
... This diagram is a plot of stellar brightness (luminosity) versus stellar color (temperature). Brightness (luminosity) is plotted along the Y-axis; color (temperature) along the X-axis. The diagram is named for the two astronomers who created the first version around 1912, uncovering fundamental rela ...
... This diagram is a plot of stellar brightness (luminosity) versus stellar color (temperature). Brightness (luminosity) is plotted along the Y-axis; color (temperature) along the X-axis. The diagram is named for the two astronomers who created the first version around 1912, uncovering fundamental rela ...
StarFlight - Center for the Presentation of Science
... each emphasizing a different feature. The Orion tour highlighted mythology, the Big Dipper tour focused on astronomical information, and the Scorpius tour merely guided the viewer through the distortion occurring during flight. Orion was by far the most liked, with sixty-seven percent marking it as ...
... each emphasizing a different feature. The Orion tour highlighted mythology, the Big Dipper tour focused on astronomical information, and the Scorpius tour merely guided the viewer through the distortion occurring during flight. Orion was by far the most liked, with sixty-seven percent marking it as ...
Star Stuff
... - divides the light up into its colors (wavelengths) - use a smaller range of wavelengths than entire EM spectrum because instrumentation is different ...
... - divides the light up into its colors (wavelengths) - use a smaller range of wavelengths than entire EM spectrum because instrumentation is different ...
Ch. 17 (RGs & WDs)
... These stars are all more luminous than the Sun. Three new categories appear here – the red giants & supergiants and the blue giants. Clearly, the brightest stars in the sky appear bright because of their enormous luminosities, not their proximity. ...
... These stars are all more luminous than the Sun. Three new categories appear here – the red giants & supergiants and the blue giants. Clearly, the brightest stars in the sky appear bright because of their enormous luminosities, not their proximity. ...
RS Oph
... RS Oph is the second brightest member of a rare class of cataclysmic variable star known as recurrent novae (Nr). These stars are novae where more than one outburst has been observed and appear to be intermediate in class between the classical novae (single major outburst) and dwarf novae (frequent ...
... RS Oph is the second brightest member of a rare class of cataclysmic variable star known as recurrent novae (Nr). These stars are novae where more than one outburst has been observed and appear to be intermediate in class between the classical novae (single major outburst) and dwarf novae (frequent ...
Station A Star Charts I
... D7. (2 pts) One of the most luminous stars in the Milky Way is Cygnus OB2#12. Based on its size and distance from the Earth astronomers expect that its apparent magnitude should be 1.5. However, interstellar dust causes its apparent magnitude to be 11.4. How many times brighter (or fainter) does the ...
... D7. (2 pts) One of the most luminous stars in the Milky Way is Cygnus OB2#12. Based on its size and distance from the Earth astronomers expect that its apparent magnitude should be 1.5. However, interstellar dust causes its apparent magnitude to be 11.4. How many times brighter (or fainter) does the ...
Virtual HR Diagram Lab
... Draw an arrow showing the direction of increasing mass for main sequence stars on the diagram. Label it M. (Note: this arrow only applies to main sequence stars, but that is over 90% of stars.) ...
... Draw an arrow showing the direction of increasing mass for main sequence stars on the diagram. Label it M. (Note: this arrow only applies to main sequence stars, but that is over 90% of stars.) ...
Lecture
... – O star: ~ 1 million years – G star (Sun): ~ 10 billion years – M star : ~ 5,000 billion years ...
... – O star: ~ 1 million years – G star (Sun): ~ 10 billion years – M star : ~ 5,000 billion years ...
ted_2012_power_of_design
... gassiest) kid on the block. A gas giant with a mass 2.5 times that of all other planets in our solar system combined, Jupiter is the third-brightest object in the night sky after the moon and Venus. Jupiter’s most prominent feature is the Great Red Spot, a storm larger than Earth that has possibly b ...
... gassiest) kid on the block. A gas giant with a mass 2.5 times that of all other planets in our solar system combined, Jupiter is the third-brightest object in the night sky after the moon and Venus. Jupiter’s most prominent feature is the Great Red Spot, a storm larger than Earth that has possibly b ...
Chapter 5 Galaxies and Star Systems
... spiral galaxies, called barred-spiral galaxies, have a huge bar-shaped region of stars and gas that passes through their center. Not all galaxies have spiral arms. Elliptical galaxies look like round or flattened balls. These galaxies contain billions of the stars but have little gas and dust betwee ...
... spiral galaxies, called barred-spiral galaxies, have a huge bar-shaped region of stars and gas that passes through their center. Not all galaxies have spiral arms. Elliptical galaxies look like round or flattened balls. These galaxies contain billions of the stars but have little gas and dust betwee ...
The Sun and the Stars
... Apparent magnitude : The apparent magnitude (symbol m) is a measure of the stars brightness as seen by an observer on Earth. Scale originally devised by Hipparchus and later Ptolemy. Historically , stars were divided into 6 categories according to their brightness : brightest 1st magnitude, faintest ...
... Apparent magnitude : The apparent magnitude (symbol m) is a measure of the stars brightness as seen by an observer on Earth. Scale originally devised by Hipparchus and later Ptolemy. Historically , stars were divided into 6 categories according to their brightness : brightest 1st magnitude, faintest ...
Lecture 3
... Apparent magnitude : The apparent magnitude (symbol m) is a measure of the stars brightness as seen by an observer on Earth. Scale originally devised by Hipparchus and later Ptolemy. Historically , stars were divided into 6 categories according to their brightness : brightest 1st magnitude, faintest ...
... Apparent magnitude : The apparent magnitude (symbol m) is a measure of the stars brightness as seen by an observer on Earth. Scale originally devised by Hipparchus and later Ptolemy. Historically , stars were divided into 6 categories according to their brightness : brightest 1st magnitude, faintest ...
Surveying the Stars
... the Spectral Types… • White Stars, with prominent hydrogen lines. Called them “A stars.” • Blue-white stars, with less prominent H lines, and weak helium lines. Called them “B stars” • Then, no more in this color direction, so skip some letters and… Cream colored stars, with weaker H lines and lots ...
... the Spectral Types… • White Stars, with prominent hydrogen lines. Called them “A stars.” • Blue-white stars, with less prominent H lines, and weak helium lines. Called them “B stars” • Then, no more in this color direction, so skip some letters and… Cream colored stars, with weaker H lines and lots ...