Slide 1
... 2. Birth: A star is born when its cores temperature reaches 10 million K. This happens for masses > 0.08 M(Sun). --the star blasts away its womb of dust and shines. --T Tauri Stars: variable brightness (like contractions). Low mass stars just about to move to the main sequence. ...
... 2. Birth: A star is born when its cores temperature reaches 10 million K. This happens for masses > 0.08 M(Sun). --the star blasts away its womb of dust and shines. --T Tauri Stars: variable brightness (like contractions). Low mass stars just about to move to the main sequence. ...
Solution Key
... This is a reasonable value (which is good since the data was taken from a real paper in the Astrophysical Journal). Globular clusters hang out surrounding the center of our galaxy, outside the galactic plane. We are around 8.5 kpc from the galactic center, so it makes sense that a globular cluster s ...
... This is a reasonable value (which is good since the data was taken from a real paper in the Astrophysical Journal). Globular clusters hang out surrounding the center of our galaxy, outside the galactic plane. We are around 8.5 kpc from the galactic center, so it makes sense that a globular cluster s ...
Word
... What is the total range in absolute magnitude and also in brightness? Using your knowledge of magnitudes, describe why a star with color index of B-V=1.5 would appear red to the human eye. [HINT: In the above Wiki article you’ll read that “B” stands for blue visual magnitude and “V” stands for yello ...
... What is the total range in absolute magnitude and also in brightness? Using your knowledge of magnitudes, describe why a star with color index of B-V=1.5 would appear red to the human eye. [HINT: In the above Wiki article you’ll read that “B” stands for blue visual magnitude and “V” stands for yello ...
The hierarchical structure of the Universe (go from little to large)
... - Everything you see is part of the Galaxy • The glow of the Milky Way • Stars • Star clusters (open clusters and globular clusters) • Planetary nebulae (dying stars) • Supernova remnants (stars that blew up) ...
... - Everything you see is part of the Galaxy • The glow of the Milky Way • Stars • Star clusters (open clusters and globular clusters) • Planetary nebulae (dying stars) • Supernova remnants (stars that blew up) ...
Astronomy Unit Period
... d. age _________________________12. Astronomers use numbers to describe a star’s brightness. The larger the number, the ___ the star. _________________________ 13. How bright a star appears as seen from Earth is called ___ . _________________________ 14. How bright a star actually is at a distance o ...
... d. age _________________________12. Astronomers use numbers to describe a star’s brightness. The larger the number, the ___ the star. _________________________ 13. How bright a star appears as seen from Earth is called ___ . _________________________ 14. How bright a star actually is at a distance o ...
Astronomy Unit Test Review Sheet
... 21. Compare and contrast the 3 different types of galaxies (2-3)? What type of galaxy do we live in (Milky ...
... 21. Compare and contrast the 3 different types of galaxies (2-3)? What type of galaxy do we live in (Milky ...
Chapter 13
... of non-fusing hydrogen on the WD surface Explosive onset of H fusion Nova explosion ...
... of non-fusing hydrogen on the WD surface Explosive onset of H fusion Nova explosion ...
1 - Stellar Life Cycle
... center of the new star, this heats stops the rest of the star from collapsing. The balance between gravity trying to make the star shrink and heat holding it up is called Thermodynamic Equilibrium. The star then stays almost exactly the same for a long time (about 10 billion years for a star lik ...
... center of the new star, this heats stops the rest of the star from collapsing. The balance between gravity trying to make the star shrink and heat holding it up is called Thermodynamic Equilibrium. The star then stays almost exactly the same for a long time (about 10 billion years for a star lik ...
Life cycle of Stars Notes
... • White dwarfs, are the carbon and oxygen cores of dead stars. • WD are about the size of earth. • The more massive a WD is, the smaller it is in size. ...
... • White dwarfs, are the carbon and oxygen cores of dead stars. • WD are about the size of earth. • The more massive a WD is, the smaller it is in size. ...
GeoDome Notes
... Sailors used the North Star to guide them especially when they were out of view of landmarks. Early explorers realized that the height of the North Star above the horizon was constant if you traveled directly east and west. This was translated in latitude on maps. Here in SE PA, we are at approximat ...
... Sailors used the North Star to guide them especially when they were out of view of landmarks. Early explorers realized that the height of the North Star above the horizon was constant if you traveled directly east and west. This was translated in latitude on maps. Here in SE PA, we are at approximat ...
PPT - University of Delaware
... massive star(s) in our Milky Way Galaxy 10 M_sun Bipolar Nebula enshrouds star(s) from 1840’s “Giant Eruption” Very close so lots of data Data predicts system is actually a binary system with one star ~90 M_sun and the other ~30 M_sun Think it is in last stages of life before big star undergoes a su ...
... massive star(s) in our Milky Way Galaxy 10 M_sun Bipolar Nebula enshrouds star(s) from 1840’s “Giant Eruption” Very close so lots of data Data predicts system is actually a binary system with one star ~90 M_sun and the other ~30 M_sun Think it is in last stages of life before big star undergoes a su ...
Theoretical Modeling of Massive Stars Mr. Russell University of Delaware
... massive star(s) in our Milky Way Galaxy 10 M_sun Bipolar Nebula enshrouds star(s) from 1840’s “Giant Eruption” Very close so lots of data Data predicts system is actually a binary system with one star ~90 M_sun and the other ~30 M_sun Think it is in last stages of life before big star undergoes a su ...
... massive star(s) in our Milky Way Galaxy 10 M_sun Bipolar Nebula enshrouds star(s) from 1840’s “Giant Eruption” Very close so lots of data Data predicts system is actually a binary system with one star ~90 M_sun and the other ~30 M_sun Think it is in last stages of life before big star undergoes a su ...
Stars and Constellations
... how stars evolve. Lead students to understand the difference between apparent magnitude and absolute magnitude. Showing a flashlight at varying distances is a concrete means of demonstrating the difference. 2) Have students construct simple astrolabes using drinking straws, washers, string and protr ...
... how stars evolve. Lead students to understand the difference between apparent magnitude and absolute magnitude. Showing a flashlight at varying distances is a concrete means of demonstrating the difference. 2) Have students construct simple astrolabes using drinking straws, washers, string and protr ...
Great Migrations & other natural history tales
... On the similarities of chemical composition of most pop. I stars Observations show that many stars are surrounded by dust and sometimes detectable gas, in the form of the so-called debris disks or replenished dust disks, originally called Vega-type disks. The Sun has a zodiacal light disk, which is ...
... On the similarities of chemical composition of most pop. I stars Observations show that many stars are surrounded by dust and sometimes detectable gas, in the form of the so-called debris disks or replenished dust disks, originally called Vega-type disks. The Sun has a zodiacal light disk, which is ...
Life Cycle of Stars
... • Luminosity – brightness, or energy output of a star per second • Temperature- in stars, the temperature determines the luminosity and the rate of nuclear reactions (fusion) ...
... • Luminosity – brightness, or energy output of a star per second • Temperature- in stars, the temperature determines the luminosity and the rate of nuclear reactions (fusion) ...
Life: Definition, Origin, Criteria
... • Solar like Main Sequence star, stable for billions of years • Less than 1.5 times massive than the Sun; otherwise too much UV • More than 0.3 times the mass of the Sun; large warm region near the star for liquid water • Limited to no more than 10 billion stars ...
... • Solar like Main Sequence star, stable for billions of years • Less than 1.5 times massive than the Sun; otherwise too much UV • More than 0.3 times the mass of the Sun; large warm region near the star for liquid water • Limited to no more than 10 billion stars ...
Ursa Minor
Ursa Minor (Latin: ""Smaller She-Bear"", contrasting with Ursa Major), also known as the Little Bear, is a constellation in the northern sky. Like the Great Bear, the tail of the Little Bear may also be seen as the handle of a ladle, hence the name Little Dipper. It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. Ursa Minor has traditionally been important for navigation, particularly by mariners, due to Polaris being the North Star.Polaris, the brightest star in the constellation, is a yellow-white supergiant and the brightest Cepheid variable star in the night sky, ranging from apparent magnitude 1.97 to 2.00. Beta Ursae Minoris, also known as Kochab, is an aging star that has swollen and cooled to become an orange giant with an apparent magnitude of 2.08, only slightly fainter than Polaris. Kochab and magnitude 3 Gamma Ursae Minoris have been called the ""guardians of the pole star"". Planets have been detected orbiting four of the stars, including Kochab. The constellation also contains an isolated neutron star—Calvera—and H1504+65, the hottest white dwarf yet discovered with a surface temperature of 200,000 K.