Week 11
... FUSION: small nuclei combine together IF they collide fast enough • example: hydrogen ...
... FUSION: small nuclei combine together IF they collide fast enough • example: hydrogen ...
The Sun and Stardust
... How are other elements made? Massive stars burn their hydrogen (and helium and carbon-nitrogen-oxygen) very quickly. At the end of their life heavier (metals) are formed such as vanadium, chromium, manganese, iron, cobalt, and nickel etc. Then massive stars (about ten times more massive than the Su ...
... How are other elements made? Massive stars burn their hydrogen (and helium and carbon-nitrogen-oxygen) very quickly. At the end of their life heavier (metals) are formed such as vanadium, chromium, manganese, iron, cobalt, and nickel etc. Then massive stars (about ten times more massive than the Su ...
Sample multiple choice questions for Exam 2
... 1. Most of the bright stars in the sky are bright because they are close (within 10 light years) to our Sun. a) correct b) wrong: Most are intrinsically bright and lie far from the Sun. c) wrong: Close means closer than 1 parsec. d) wrong: This is true only for green stars. e) wrong: Both changes c) ...
... 1. Most of the bright stars in the sky are bright because they are close (within 10 light years) to our Sun. a) correct b) wrong: Most are intrinsically bright and lie far from the Sun. c) wrong: Close means closer than 1 parsec. d) wrong: This is true only for green stars. e) wrong: Both changes c) ...
Chapter 21
... • radii of 20 to several hundred solar radii (they are about the size of Jupiter's orbit!!!!) • two types are red supergiants (Betelgeuse and Antares) and blue supergiants (Rigel) ...
... • radii of 20 to several hundred solar radii (they are about the size of Jupiter's orbit!!!!) • two types are red supergiants (Betelgeuse and Antares) and blue supergiants (Rigel) ...
Review: How does a star`s mass determine its life story?
... Iron core of massive star reaches white dwarf limit and collapses into a neutron star, causing explosion White dwarf supernova: Carbon fusion suddenly begins as white dwarf in close binary system reaches white dwarf limit, causing total explosion ...
... Iron core of massive star reaches white dwarf limit and collapses into a neutron star, causing explosion White dwarf supernova: Carbon fusion suddenly begins as white dwarf in close binary system reaches white dwarf limit, causing total explosion ...
Some 250 years ago, the philosopher Immanuel Universal
... special either. Except that some exoplanets are special. It is tempting to describe the many planetary systems that have been discovered so far as weird. Rather than the ‘inevitable’ orderly arrangement of our own Solar System — with small planets close, large planets far, and everything going aroun ...
... special either. Except that some exoplanets are special. It is tempting to describe the many planetary systems that have been discovered so far as weird. Rather than the ‘inevitable’ orderly arrangement of our own Solar System — with small planets close, large planets far, and everything going aroun ...
Slide 1
... We calculated the age to be between 12 to 14 billion years old It is 25,000 light years away from Earth ...
... We calculated the age to be between 12 to 14 billion years old It is 25,000 light years away from Earth ...
Reading Preview
... A star’s ________ gives clues about the star’s temperature. The coolest stars appear ________. The hottest stars appear ________. Very large stars are called ________ stars or ____________ stars. Our sun is a medium sized ________. Most stars are ________ than the sun. White dwarf stars are abou ...
... A star’s ________ gives clues about the star’s temperature. The coolest stars appear ________. The hottest stars appear ________. Very large stars are called ________ stars or ____________ stars. Our sun is a medium sized ________. Most stars are ________ than the sun. White dwarf stars are abou ...
proposed october viewing list
... best with the 4” refractor at low magnification. It contains more than 2900 stars and is estimated to be about 250 million years old. M11 is receding from us at a speed of 27 km/s. M17 The Omega, or Swan, Nebula in the constellation Sagittarius (Sah-jih-TAIR-ee-us ) is an emission nebula caused to r ...
... best with the 4” refractor at low magnification. It contains more than 2900 stars and is estimated to be about 250 million years old. M11 is receding from us at a speed of 27 km/s. M17 The Omega, or Swan, Nebula in the constellation Sagittarius (Sah-jih-TAIR-ee-us ) is an emission nebula caused to r ...
- Stevenson High School
... 2. How many constellations are there? 3. Constellations are made up by the apparent arrangement of stars. Are those stars in a constellations physically connected/bound to one another? Tell me about those stars. 4. Are there any stars that are not part of a constellation? Explain. 5. How is astrolog ...
... 2. How many constellations are there? 3. Constellations are made up by the apparent arrangement of stars. Are those stars in a constellations physically connected/bound to one another? Tell me about those stars. 4. Are there any stars that are not part of a constellation? Explain. 5. How is astrolog ...
30.2 PowerPoint Stellar Evolution
... the core of the star The energy from fusion balances the force of gravity and makes it a very stable stage ...
... the core of the star The energy from fusion balances the force of gravity and makes it a very stable stage ...
THE MILKY WAY GALAXY
... The nature and size of the Galaxy, as well as our location within this stellar system were finally appreciated in the early 20th century when: The locations of the globular clusters were mapped out, indicating that the galactic center was located thousands of light years distant, towards the const ...
... The nature and size of the Galaxy, as well as our location within this stellar system were finally appreciated in the early 20th century when: The locations of the globular clusters were mapped out, indicating that the galactic center was located thousands of light years distant, towards the const ...
Star names and magnitudes
... And thereafter, stars are further subclassified using the numbers 0-9: O B A F G K M R N S ...
... And thereafter, stars are further subclassified using the numbers 0-9: O B A F G K M R N S ...
Bez tytułu slajdu
... burn into iron, first collapse, and then explode into supernova. A part of the mass is expelled and the remnants form a core of about 20 km diameter made of neutrons. The expelled material contains heavy elements and can be re-cycled, to form a system, like the Solar one. ...
... burn into iron, first collapse, and then explode into supernova. A part of the mass is expelled and the remnants form a core of about 20 km diameter made of neutrons. The expelled material contains heavy elements and can be re-cycled, to form a system, like the Solar one. ...
Today`s Powerpoint
... While on Main Sequence, stellar core has H -> He fusion, by p-p chain in stars like Sun or less massive. In more massive stars, “CNO cycle” becomes more important. ...
... While on Main Sequence, stellar core has H -> He fusion, by p-p chain in stars like Sun or less massive. In more massive stars, “CNO cycle” becomes more important. ...
Light and the Electromagnetic Spectrum
... present. The way we can tell which are there is to look at the spectrum of the star. • From spectral lines astronomers can determine not only the element, but the temperature and density of that element in the star. • Emission lines can also tell us about the magnetic field of the star. The width of ...
... present. The way we can tell which are there is to look at the spectrum of the star. • From spectral lines astronomers can determine not only the element, but the temperature and density of that element in the star. • Emission lines can also tell us about the magnetic field of the star. The width of ...
The Danger of Deadly Cosmic Explosions
... Brightest flashes seen Usually billions of light years away. Jets from ...
... Brightest flashes seen Usually billions of light years away. Jets from ...
Dim Stars - granthamkuehl
... In our study of Stars The students will be able to Determine color, temp., brightness and Size of a star And show what they learned by Interpreting the HR Diagram ...
... In our study of Stars The students will be able to Determine color, temp., brightness and Size of a star And show what they learned by Interpreting the HR Diagram ...
File - SMIC Physics
... • If the collapsed core of a supernova is > 3 times the mass of Sun → continue to collapse → until it becomes a point → gravity near this mass is so strong that nothing can escape from it, not even light → black hole • Black hole is not like a giant vacuum cleaner sucking in distance objects • Only ...
... • If the collapsed core of a supernova is > 3 times the mass of Sun → continue to collapse → until it becomes a point → gravity near this mass is so strong that nothing can escape from it, not even light → black hole • Black hole is not like a giant vacuum cleaner sucking in distance objects • Only ...
Lyra
Lyra (/ˈlaɪərə/; Latin for lyre, from Greek λύρα) is a small constellation. It is one of 48 listed by the 2nd century astronomer Ptolemy, and is one of the 88 constellations recognized by the International Astronomical Union. Lyra was often represented on star maps as a vulture or an eagle carrying a lyre, and hence sometimes referred to as Aquila Cadens or Vultur Cadens. Beginning at the north, Lyra is bordered by Draco, Hercules, Vulpecula, and Cygnus. Lyra is visible from the northern hemisphere from spring through autumn, and nearly overhead, in temperate latitudes, during the summer months. From the southern hemisphere, it is visible low in the northern sky during the winter months.The lucida or brightest star—and one of the brightest stars in the sky—is the white main sequence star Vega, a corner of the Summer Triangle. Beta Lyrae is the prototype of a class of stars known as Beta Lyrae variables, binary stars so close to each other that they become egg-shaped and material flows from one to the other. Epsilon Lyrae, known informally as the Double Double, is a complex multiple star system. Lyra also hosts the Ring Nebula, the second-discovered and best-known planetary nebula.