Chapter 21 Study Guide
... 12. A building that contains one or more telescopes is called an _____________________________. 13. Name one reason why astronomers have built large telescopes on the tops of mountains. _____________________________________________________________________________________ 14. The Hubble Space Telesco ...
... 12. A building that contains one or more telescopes is called an _____________________________. 13. Name one reason why astronomers have built large telescopes on the tops of mountains. _____________________________________________________________________________________ 14. The Hubble Space Telesco ...
eta carinae – nature`s own hadron collider
... ETA CARINAE IS ONE OF THE MOST MASSIVE STARS KNOWN. IT IS AROUND 100 SOLAR MASSES. THE UPPER LIMIT OF STAR SIZE IS THOUGHT TO BE AROUND 150 SOLAR MASSES. BECAUSE OF ITS SIZE, AND THE HIGH ENERGIES PRODUCED BECAUSE OF GRAVITY, IT IS UNSTABLE. ...
... ETA CARINAE IS ONE OF THE MOST MASSIVE STARS KNOWN. IT IS AROUND 100 SOLAR MASSES. THE UPPER LIMIT OF STAR SIZE IS THOUGHT TO BE AROUND 150 SOLAR MASSES. BECAUSE OF ITS SIZE, AND THE HIGH ENERGIES PRODUCED BECAUSE OF GRAVITY, IT IS UNSTABLE. ...
Stars - Trimble County Schools
... Constellation stars • Astronomers use constellations to locate particular stars • Stars within a constellation are named according to apparent magnitude – Brightest star is labeled alpha – Next brightest beta and so on ...
... Constellation stars • Astronomers use constellations to locate particular stars • Stars within a constellation are named according to apparent magnitude – Brightest star is labeled alpha – Next brightest beta and so on ...
Physics 127 Descriptive Astronomy Homework #16
... 2.75 while the star Sulafat (Arabic for “tortoise”) has apparent magnitude 3.25. Which star 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 ...
... 2.75 while the star Sulafat (Arabic for “tortoise”) has apparent magnitude 3.25. Which star 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 ...
Stars, Galaxies & Universe
... hydrogen and expand their atmosphere. • Stars that are less than 1.4 solar masses will shrink to a white dwarf. • Stars between 1.4 -3.0 solar masses will produce a supernova and leave a neutron star. • Stars more than 3.0 solar masses will produce a supernova and collapse into a black hole. ...
... hydrogen and expand their atmosphere. • Stars that are less than 1.4 solar masses will shrink to a white dwarf. • Stars between 1.4 -3.0 solar masses will produce a supernova and leave a neutron star. • Stars more than 3.0 solar masses will produce a supernova and collapse into a black hole. ...
Document
... • Under collapse, protons and electrons combine to form neutrons. • 10 Km across Black Hole (If mass of core > 5 x Solar) • Not even compacted neutrons can support weight of very massive stars. ...
... • Under collapse, protons and electrons combine to form neutrons. • 10 Km across Black Hole (If mass of core > 5 x Solar) • Not even compacted neutrons can support weight of very massive stars. ...
Archaeology of the Milky Way - Max-Planck
... dwarf galaxy that orbits the Milky Way on an orbit that is almost perpendicular to the center plane. The Max Planck astronomers were recently able to record this stellar stream in unprecedented detail with their PanSTARRS sky survey. PanSTARRS ...
... dwarf galaxy that orbits the Milky Way on an orbit that is almost perpendicular to the center plane. The Max Planck astronomers were recently able to record this stellar stream in unprecedented detail with their PanSTARRS sky survey. PanSTARRS ...
04_Home_Science3 (04_Home_Science3)
... D. roll each ball down a hill and see which ball rolls the fastest 18. The day during the year when the Northern Hemisphere receives the greatest amount of sunlight is called the A. fall equinox. B. spring equinox. C. winter solstice. D. summer solstice. 19. If you are on a seesaw and want your frie ...
... D. roll each ball down a hill and see which ball rolls the fastest 18. The day during the year when the Northern Hemisphere receives the greatest amount of sunlight is called the A. fall equinox. B. spring equinox. C. winter solstice. D. summer solstice. 19. If you are on a seesaw and want your frie ...
mass of star
... Probably new molecular clouds form continually out of less dense gas. Some collapse under their own gravity. Others may be more stable. Magnetic fields and rotation also have some influence. Gravity makes cloud want to collapse. ...
... Probably new molecular clouds form continually out of less dense gas. Some collapse under their own gravity. Others may be more stable. Magnetic fields and rotation also have some influence. Gravity makes cloud want to collapse. ...
Stars and Galaxies
... What would happen if an even more massive star would explode into a supernova leaving behind a core that is even more dense than a neutron star? Such gravitational forces would be so great that not even light could escape We call these black holes ...
... What would happen if an even more massive star would explode into a supernova leaving behind a core that is even more dense than a neutron star? Such gravitational forces would be so great that not even light could escape We call these black holes ...
Dark Matter Burners
... the high density dark matter region near the black hole where they appear as WIMP burners Compact structure: more stable against extreme gravitational conditions near the supermassive black hole What are the spectral or other signatures? ...
... the high density dark matter region near the black hole where they appear as WIMP burners Compact structure: more stable against extreme gravitational conditions near the supermassive black hole What are the spectral or other signatures? ...
Lecture 7
... on matter in the Universe, much as stars form from clumps of gas within galaxies. We will see computer simulations of this later. 5) The density of neighbors around a galaxy is called its environment. These range from very sparse (as in the Local Group) to very dense in big clusters. Hubble types va ...
... on matter in the Universe, much as stars form from clumps of gas within galaxies. We will see computer simulations of this later. 5) The density of neighbors around a galaxy is called its environment. These range from very sparse (as in the Local Group) to very dense in big clusters. Hubble types va ...
Characteristics of Stars ppt.
... Although it is not always apparent from Earth, the distances of stars from Earth varies greatly, and all of the stars we see in the night sky are extremely far from Earth. These distances are so great that scientists measure them in light years (the distance light travels in one year.) ...
... Although it is not always apparent from Earth, the distances of stars from Earth varies greatly, and all of the stars we see in the night sky are extremely far from Earth. These distances are so great that scientists measure them in light years (the distance light travels in one year.) ...
The Observed Properties of Stars
... these stars in order to make “models” that can be compared to our model of the Sun? ...
... these stars in order to make “models” that can be compared to our model of the Sun? ...
More on Cluster HR diagrams - University of Texas Astronomy
... 1. Pressure balances gravity at every depth, so hottest in center ⇒ nuclear reactions H → He, “core H-burning”, which is what the main sequence in the H-R diagram represents. This is the same “pressure equilibrium” that we have discussed earlier, but a star has a long-lived source of energy to maint ...
... 1. Pressure balances gravity at every depth, so hottest in center ⇒ nuclear reactions H → He, “core H-burning”, which is what the main sequence in the H-R diagram represents. This is the same “pressure equilibrium” that we have discussed earlier, but a star has a long-lived source of energy to maint ...
Earth`s Motion and Seasons
... Because it orbits Earth above the atmosphere, it can produce very detailed images. Hubble images have changed how astronomers view the universe. The most recent addition to NASA’s lineup of telescopes in space is the Spritzer Space Telescope launched in 2003. It produces images in the infrared porti ...
... Because it orbits Earth above the atmosphere, it can produce very detailed images. Hubble images have changed how astronomers view the universe. The most recent addition to NASA’s lineup of telescopes in space is the Spritzer Space Telescope launched in 2003. It produces images in the infrared porti ...
ref H-R Spectral types
... best-known red giant stars. If Betelgeuse were to swallow the solar system, it would do so out as far as Jupiter! This terrific photo was taken by the Hubble Space Telescope. ...
... best-known red giant stars. If Betelgeuse were to swallow the solar system, it would do so out as far as Jupiter! This terrific photo was taken by the Hubble Space Telescope. ...
Tour of the Universe
... about 4.6x10^9 years ago. The high temperature close to the Sun provide the compounds with high condensation temperature to remain solid, that hold the particles that make up these planets together: Mercury, Venus, Earth and Mars. ● The planets that are farther away from the Sun are formed from c ...
... about 4.6x10^9 years ago. The high temperature close to the Sun provide the compounds with high condensation temperature to remain solid, that hold the particles that make up these planets together: Mercury, Venus, Earth and Mars. ● The planets that are farther away from the Sun are formed from c ...
3 rd stage of a star`s life = red giant
... trigger a violent explosion known as a supernova. 2. If the remaining mass of the star is about 1.4 times that of our Sun, it will collapse further to become a neutron star. 3. If the remaining mass of the star is more than about three times that of the Sun, it will collapse and what is left behind ...
... trigger a violent explosion known as a supernova. 2. If the remaining mass of the star is about 1.4 times that of our Sun, it will collapse further to become a neutron star. 3. If the remaining mass of the star is more than about three times that of the Sun, it will collapse and what is left behind ...
Stellar kinematics
Stellar kinematics is the study of the movement of stars without needing to understand how they acquired their motion. This differs from stellar dynamics, which takes into account gravitational effects. The motion of a star relative to the Sun can provide useful information about the origin and age of a star, as well as the structure and evolution of the surrounding part of the Milky Way.In astronomy, it is widely accepted that most stars are born within molecular clouds known as stellar nurseries. The stars formed within such a cloud compose open clusters containing dozens to thousands of members. These clusters dissociate over time. Stars that separate themselves from the cluster's core are designated as members of the cluster's stellar association. If the remnant later drifts through the Milky Way as a coherent assemblage, then it is termed a moving group.