Variable and Binary Stars
... – 75% of O-type stars seem to have a companion – If Jupiter had been ~100 times more massive, the Sun would have a companion star ...
... – 75% of O-type stars seem to have a companion – If Jupiter had been ~100 times more massive, the Sun would have a companion star ...
Quiz #4 – The Electromagnetic Spectrum and Stars
... Rapidly spinning neutron stars are called _________________. ...
... Rapidly spinning neutron stars are called _________________. ...
Weekly Homework Questions #3, Sep. 14, 2010
... Aldebaran, the brightest star in the constellation of Taurus, which will also be visible this fall? How much brighter or fainter is it? (a) Fomalhaut is 0.36 magnitudes brighter than Aldebaran (b) Fomalhaut is 1.45 magnitudes fainter than Aldebaran (c) Fomalhaut is 2.07 magnitudes brighter than Alde ...
... Aldebaran, the brightest star in the constellation of Taurus, which will also be visible this fall? How much brighter or fainter is it? (a) Fomalhaut is 0.36 magnitudes brighter than Aldebaran (b) Fomalhaut is 1.45 magnitudes fainter than Aldebaran (c) Fomalhaut is 2.07 magnitudes brighter than Alde ...
Astronomy 120
... By how much less is the sun’s flux at Jupiter compared to that at the earth? 3. Zeilik Study Exercise 13.3 What limits the accuracy of ground-based heliocentric parallax measurements? 4. Zeilik Study Exercise 13.4 Refer to Figure 13.15 to answer the following questions. (a) Capella and the sun have ...
... By how much less is the sun’s flux at Jupiter compared to that at the earth? 3. Zeilik Study Exercise 13.3 What limits the accuracy of ground-based heliocentric parallax measurements? 4. Zeilik Study Exercise 13.4 Refer to Figure 13.15 to answer the following questions. (a) Capella and the sun have ...
H-R Diagram - SFA Physics
... stars in the night sky. Transfer the main sequence curve from Figure 1 onto Figure 2. ...
... stars in the night sky. Transfer the main sequence curve from Figure 1 onto Figure 2. ...
observingopenclusters-2-2-1
... to the Sun Slide your scope or binoculars parallel to the dog’s back and then move west of that line. You will pick up a large rich field of stars – Open Cluster M41 Procyon (Canis Minor) Locate next large and (also close) Procyon This points the way to 2 very different open clusters in Monocerous, ...
... to the Sun Slide your scope or binoculars parallel to the dog’s back and then move west of that line. You will pick up a large rich field of stars – Open Cluster M41 Procyon (Canis Minor) Locate next large and (also close) Procyon This points the way to 2 very different open clusters in Monocerous, ...
Name - MIT
... Sirius A, Achernar, Aldebaran B, Fomalhaut B, Capella Achernar, Sirius A, Capella, Fomalhaut B, Aldebaran B Achernar, Sirius A, Capella, Aldebaran B, Fomalhaut B Capella, Achernar, Sirius A, Aldebaran B, Fomalhaut B Fomalhaut B, Capella, Sirius A, Achernar, Aldebaran B ...
... Sirius A, Achernar, Aldebaran B, Fomalhaut B, Capella Achernar, Sirius A, Capella, Fomalhaut B, Aldebaran B Achernar, Sirius A, Capella, Aldebaran B, Fomalhaut B Capella, Achernar, Sirius A, Aldebaran B, Fomalhaut B Fomalhaut B, Capella, Sirius A, Achernar, Aldebaran B ...
H-R Diagram - Faculty Website Listing
... Please read the section in textbook that talks about HR diagram. We have also discussed this in class with examples. It may be useful to have your class notes with you when you do the lab. You can also look them up on the class webpage. 1. Using Stellarium software to collect the information on abso ...
... Please read the section in textbook that talks about HR diagram. We have also discussed this in class with examples. It may be useful to have your class notes with you when you do the lab. You can also look them up on the class webpage. 1. Using Stellarium software to collect the information on abso ...
Stars - TeacherWeb
... • Neutron Stars are the smallest. They are made of the material left behind after a larger star explodes; about 20 kilometers in diameter. ...
... • Neutron Stars are the smallest. They are made of the material left behind after a larger star explodes; about 20 kilometers in diameter. ...
Arcturus and Pollux
... Castor was born by King of Sparta, Pollux by Zeus. Castor died, Pollux wanted to join him in Hades, so Zeus was sympathetic and placed both in the sky. • 17th Brightest star in the sky • 33.7 light years • “bright star” w/ luminosity 32 times that of the sun. • The brightest star in the sky with a k ...
... Castor was born by King of Sparta, Pollux by Zeus. Castor died, Pollux wanted to join him in Hades, so Zeus was sympathetic and placed both in the sky. • 17th Brightest star in the sky • 33.7 light years • “bright star” w/ luminosity 32 times that of the sun. • The brightest star in the sky with a k ...
ASTR-1020 Exam 2 Review Questions
... 2. What is the Doppler Effect? Which direction do spectral lines shift if an object is approaching us? Receding from us? 3. Star A has a parallax of 0.12 arcsec and star B has a parallax of 0.0098 arcsec. Which of these two stars are farther from Earth? (Remember that the parallax angle is inversely ...
... 2. What is the Doppler Effect? Which direction do spectral lines shift if an object is approaching us? Receding from us? 3. Star A has a parallax of 0.12 arcsec and star B has a parallax of 0.0098 arcsec. Which of these two stars are farther from Earth? (Remember that the parallax angle is inversely ...
Physics 127 Descriptive Astronomy Homework #16
... appears brighter? From this information alone, what can you conclude about the luminosities of these stars? Explain your answer. Zubenelgenubi is the brighter of the two stars by 0.50 magnitudes (or a factor 1.585). No conclusion is possible about the relative luminosities of the two stars, since br ...
... appears brighter? From this information alone, what can you conclude about the luminosities of these stars? Explain your answer. Zubenelgenubi is the brighter of the two stars by 0.50 magnitudes (or a factor 1.585). No conclusion is possible about the relative luminosities of the two stars, since br ...
September Evening Skies
... Two open or galactic clusters are noted: M7 between the Teapot and tail of Scorpius, and the Double Cluster in Perseus. Two globular clusters, more compact concentrations of hundreds of thousands of stars, can be found: M13 in Hercules and M22 in Sagittarius. M8 in Sagittarius is the Lagoon Nebula, ...
... Two open or galactic clusters are noted: M7 between the Teapot and tail of Scorpius, and the Double Cluster in Perseus. Two globular clusters, more compact concentrations of hundreds of thousands of stars, can be found: M13 in Hercules and M22 in Sagittarius. M8 in Sagittarius is the Lagoon Nebula, ...
Startalk
... A big glowing ball of gas! Contains mainly H and He They have a core that is dense and super hot! Nuclear fusion is the source of their energy! ...
... A big glowing ball of gas! Contains mainly H and He They have a core that is dense and super hot! Nuclear fusion is the source of their energy! ...
HR Diagram Activity
... 3. Stars with surface temperatures up to 3,500°C are red. Shade a vertical column from 2,000°C to 3,500°C red. 4. Shade other color columns as follows: Stars up to 5,000°C are orange-red; up to 6,000°C yellow; 6000°C to 10,000°C are white (don’t shade); up to 20,000°C blue-white, and up to 40,000°C ...
... 3. Stars with surface temperatures up to 3,500°C are red. Shade a vertical column from 2,000°C to 3,500°C red. 4. Shade other color columns as follows: Stars up to 5,000°C are orange-red; up to 6,000°C yellow; 6000°C to 10,000°C are white (don’t shade); up to 20,000°C blue-white, and up to 40,000°C ...
Almach or Alberio
... that of our Sun (large enough to swallow the orbit of Venus) and a luminosity 2,000 times that of our daytime star. The dimmer blue star (known as Almach B,C, and D) is also actually a triple system of three white dwarf stars . The white dwarf stars together orbit the gold primary star at a distance ...
... that of our Sun (large enough to swallow the orbit of Venus) and a luminosity 2,000 times that of our daytime star. The dimmer blue star (known as Almach B,C, and D) is also actually a triple system of three white dwarf stars . The white dwarf stars together orbit the gold primary star at a distance ...
INV 12B MOTION WITH CHANGING SPEED DRY LAB DATA
... 3. How does the sun compare to the other stars on the main sequence? (Hint: The sun’s color is …..What part of the main sequence is it in – upper left, lower left, etc.?) ...
... 3. How does the sun compare to the other stars on the main sequence? (Hint: The sun’s color is …..What part of the main sequence is it in – upper left, lower left, etc.?) ...
Stellar Evolution and the HR Diagram Study Guide
... Most stars are composed mainly of hydrogen and helium. ...
... Most stars are composed mainly of hydrogen and helium. ...
Astronomy Chapter 13 Name
... K. The law stating that the apparent brightness of a body decreases inversely as the square of its distance L. A star whose luminosity changes in time M. The region in the H-R diagram in which most stars are located N. A dense star whose radius is approximately equal to Earth’s but whose mass is com ...
... K. The law stating that the apparent brightness of a body decreases inversely as the square of its distance L. A star whose luminosity changes in time M. The region in the H-R diagram in which most stars are located N. A dense star whose radius is approximately equal to Earth’s but whose mass is com ...
TU Muscae and the Early-type Overcontact Binaries
... Binary orbital plane is oriented so that the two stars pass in front of one another as seen from Earth. The light curve is rich in information about the two stars. ...
... Binary orbital plane is oriented so that the two stars pass in front of one another as seen from Earth. The light curve is rich in information about the two stars. ...
Maui Stargazing April Observing List DEEP SPACE OBJECTS
... ASTERISMS - In astronomy, an asterism is an informal pattern of stars recognized in the Earth's night sky. It may be part of an official constellation or it may be composed of stars from more than one constellation. CONSTELLATIONS - In modern astronomy, a constellation is a specific area of the cel ...
... ASTERISMS - In astronomy, an asterism is an informal pattern of stars recognized in the Earth's night sky. It may be part of an official constellation or it may be composed of stars from more than one constellation. CONSTELLATIONS - In modern astronomy, a constellation is a specific area of the cel ...
Extra Questions Stellar properties
... can be seen only with a telescope because its apparent magnitude is +9.54. Its distance from Earth is 1.81 parsecs. How much closer to Earth would it have to be in order to be visible to the naked eye? Suppose two stars have the same apparent magnitude but one is ten times further away than the othe ...
... can be seen only with a telescope because its apparent magnitude is +9.54. Its distance from Earth is 1.81 parsecs. How much closer to Earth would it have to be in order to be visible to the naked eye? Suppose two stars have the same apparent magnitude but one is ten times further away than the othe ...
How is a Star`s Color Related to Its temperature?
... How is a Star’s Color Related to Its temperature? On a clear night you have surely noticed that some stars are brighter than cthers. But stars also have different colors. Rigel is blue. and Betelgense is red. Capella and ore" Sun are yellow, in this activity you will make your own Hertzsprung-Russel ...
... How is a Star’s Color Related to Its temperature? On a clear night you have surely noticed that some stars are brighter than cthers. But stars also have different colors. Rigel is blue. and Betelgense is red. Capella and ore" Sun are yellow, in this activity you will make your own Hertzsprung-Russel ...
Capella
Capella is the brightest star in the constellation Auriga, the sixth brightest in the night sky and the third brightest in the northern celestial hemisphere, after Arcturus and Vega. Its name is derived from the diminutive of the Latin capra ""goat"", hence ""little goat"". Capella also bears the Bayer designation Alpha Aurigae (often abbreviated to α Aurigae, α Aur or Alpha Aur). Although it appears to be a single star to the naked eye, it is actually a star system of four stars in two binary pairs. The first pair consists of two bright, large type-G giant stars, both with a radius around 10 times that of the Sun and two and a half times its mass, in close orbit around each other. Designated Capella Aa and Capella Ab, these two stars have both exhausted their core hydrogen fuel and become giant stars, though it is unclear exactly what stage they are on the stellar evolutionary pathway. The second pair, around 10,000 astronomical units from the first, consists of two faint, small and relatively cool red dwarfs. They are designated Capella H and Capella L. The stars labelled Capella C through to G and I through to K are actually unrelated stars in the same visual field. The Capella system is relatively close, at only 42.8 light-years (13.1 pc) from Earth.