Week 11 Concept Summary
... 2. Interstellar Medium: This is the gas and dust that floats freely about the galaxy. It is what blocks visible light and only allows us to see nearby stars in the plane of the galaxy, though radio and infrared light can get through it easily. Stars collapse and form from the ISM, build up more heav ...
... 2. Interstellar Medium: This is the gas and dust that floats freely about the galaxy. It is what blocks visible light and only allows us to see nearby stars in the plane of the galaxy, though radio and infrared light can get through it easily. Stars collapse and form from the ISM, build up more heav ...
answers2008_09_BC
... both are associated with compact objects (white dwarf and neutron star respectively) [½] SNR is more massive, more enriched in different elements, and created by explosion rather than gradually in wind ...
... both are associated with compact objects (white dwarf and neutron star respectively) [½] SNR is more massive, more enriched in different elements, and created by explosion rather than gradually in wind ...
AY5 Announcements
... of the Sun (as bright as a small galaxy) • Many rare elements will be manufactured in non-equilibrium reactions* ...
... of the Sun (as bright as a small galaxy) • Many rare elements will be manufactured in non-equilibrium reactions* ...
Stellar Remnants
... – a millimeter thick atmosphere, – an iron crust of a few hundred meters – a superfluid neutron core with (having virtually no friction or magnetic fields) ...
... – a millimeter thick atmosphere, – an iron crust of a few hundred meters – a superfluid neutron core with (having virtually no friction or magnetic fields) ...
starevolution - Global Change Program
... supernova remnant is 6,500 light years away. Another beautiful example of a supernova remnant is the Cygnus Loop, lying about 2,500 light years away (on right). The evolution of even more massive stars produce other objects in our universe. Perhaps the most intriguing object that can form from a mas ...
... supernova remnant is 6,500 light years away. Another beautiful example of a supernova remnant is the Cygnus Loop, lying about 2,500 light years away (on right). The evolution of even more massive stars produce other objects in our universe. Perhaps the most intriguing object that can form from a mas ...
October 2014 - Newbury Astronomical Society
... magnitude of a star (brightness) if it was located at a standard distance from us (32.6 light years). The colour of the stars indicated on the diagram represents the temperature of each star being considered (red and brown the coolest and blue the hottest). A star like our Sun is a normal medium siz ...
... magnitude of a star (brightness) if it was located at a standard distance from us (32.6 light years). The colour of the stars indicated on the diagram represents the temperature of each star being considered (red and brown the coolest and blue the hottest). A star like our Sun is a normal medium siz ...
Stefan-Boltzmann`s law Wien`s law
... spectral types(color) /classifications or surface temperature. It shows stars of different ages and in different stages, all at the same time. ...
... spectral types(color) /classifications or surface temperature. It shows stars of different ages and in different stages, all at the same time. ...
Stellar Evolution (Formation)
... Stellar Evolution (Star Clusters) stars can condense from the same giant molecular cloud star cluster. Massive stars reach main sequence first and evolve from it earlier also (tms M-2.5) As time advances, high mass tip of main sequence shortens and evolved stars appear in upper right of H-R D ...
... Stellar Evolution (Star Clusters) stars can condense from the same giant molecular cloud star cluster. Massive stars reach main sequence first and evolve from it earlier also (tms M-2.5) As time advances, high mass tip of main sequence shortens and evolved stars appear in upper right of H-R D ...
Click here to the PowerPoint
... starts again quickly, and elements heavier than iron are formed ...
... starts again quickly, and elements heavier than iron are formed ...
70 Thousand Million, Million, Million Stars in Space
... A comet is not a star. It is formed by bits of dust and gas that collect into an icy form. Comets take their name from the Greek aster kometes, which means “long-haired stars.” Comets have come as close to Earth as 31,068,560 miles (50 million km). Asteroids are not stars. They are bits of rock that ...
... A comet is not a star. It is formed by bits of dust and gas that collect into an icy form. Comets take their name from the Greek aster kometes, which means “long-haired stars.” Comets have come as close to Earth as 31,068,560 miles (50 million km). Asteroids are not stars. They are bits of rock that ...
galaxy - 106Thursday130-430
... of this dark matter containing the major portion of the total galaxy mass and extending very far beyond the visible matter. Some indirect means suggest that the dark matter halo may extend as far as 100,000 parsecs from the center ...
... of this dark matter containing the major portion of the total galaxy mass and extending very far beyond the visible matter. Some indirect means suggest that the dark matter halo may extend as far as 100,000 parsecs from the center ...
Basic Properties of Stars
... Note: T increases to left and bright stars at the top. Band upper left to lower right is called the Main Sequence. It contains 8090% of all stars. White dwarfs at lower left. ...
... Note: T increases to left and bright stars at the top. Band upper left to lower right is called the Main Sequence. It contains 8090% of all stars. White dwarfs at lower left. ...
Sample Stellar Evolution TEST QUESTIONS
... 34. Giant and supergiant stars are rare because a. they do not form as often as main sequence stars. b. the giant and supergiant stage is unstable. c. the giant and supergiant stage is very short. d. helium is very rare. e. helium flash destroys many of the stars before they can become giants and su ...
... 34. Giant and supergiant stars are rare because a. they do not form as often as main sequence stars. b. the giant and supergiant stage is unstable. c. the giant and supergiant stage is very short. d. helium is very rare. e. helium flash destroys many of the stars before they can become giants and su ...
Integrative Studies 410 Our Place in the Universe
... • Appears as a milky band of light across the sky • A small telescope reveals that it is composed of many stars (Galileo again!) • Our knowledge of the Milky Way comes from a combination of observation and comparison to other ...
... • Appears as a milky band of light across the sky • A small telescope reveals that it is composed of many stars (Galileo again!) • Our knowledge of the Milky Way comes from a combination of observation and comparison to other ...
Introduction to Astronomy
... – Most have companion stars – Gravity attracts companion material into an accretion disk around the neutron star • This rotating disk transfers its angular momentum (rotation) to the neutron star, speeding it up ...
... – Most have companion stars – Gravity attracts companion material into an accretion disk around the neutron star • This rotating disk transfers its angular momentum (rotation) to the neutron star, speeding it up ...
Stellar Evolution
... It begins to spin super-fast with a period is as little as a second! This generates a strong magnetic field and a beacon of radio energy that acts like a spinning search-light. That appear to us as a Pulsar, a source of a rhythmic radio signal first thought to be intelligent aliens! ...
... It begins to spin super-fast with a period is as little as a second! This generates a strong magnetic field and a beacon of radio energy that acts like a spinning search-light. That appear to us as a Pulsar, a source of a rhythmic radio signal first thought to be intelligent aliens! ...
october 2008 - Mahoning Valley Astronomical Society
... try for the brightest-- go for G1. Also known as Mayall II or Andromeda's Globular, it was discovered in 1953 by the astronomers Nicholas Mayall and Olin J. Eggen. G1 consists of 300,000 to 1 million old stars. It lies about 130,000 light years away from its home galaxy M31. From our perspective thi ...
... try for the brightest-- go for G1. Also known as Mayall II or Andromeda's Globular, it was discovered in 1953 by the astronomers Nicholas Mayall and Olin J. Eggen. G1 consists of 300,000 to 1 million old stars. It lies about 130,000 light years away from its home galaxy M31. From our perspective thi ...
apparent magnitude - Harding University
... be measured. If the stars temperature (color) is known, and if its spectral class can be determined from its spectra, the stars luminosity (or absolute magnitude) can be determined. Knowing the absolute magnitude (the maganitude at 10 parsecs) and its apparent magnitude (as seen from the Earth) ...
... be measured. If the stars temperature (color) is known, and if its spectral class can be determined from its spectra, the stars luminosity (or absolute magnitude) can be determined. Knowing the absolute magnitude (the maganitude at 10 parsecs) and its apparent magnitude (as seen from the Earth) ...
Day-6
... (assuming they are flat). It does NOT have an azimuth associated with it. Nadir: The point directly under your feet, opposite the zenith Altitude: A measure of the height of an object from the ground up. It is measured perpendicular to the horizon. The horizon is 0° altitude. The Zenith is 90° altit ...
... (assuming they are flat). It does NOT have an azimuth associated with it. Nadir: The point directly under your feet, opposite the zenith Altitude: A measure of the height of an object from the ground up. It is measured perpendicular to the horizon. The horizon is 0° altitude. The Zenith is 90° altit ...
Perseus (constellation)
Perseus, named after the Greek mythological hero Perseus, is a constellation in the northern sky. It was one of 48 listed by the 2nd-century astronomer Ptolemy and among the 88 modern constellations defined by the International Astronomical Union (IAU). It is located in the northern celestial hemisphere near several other constellations named after legends surrounding Perseus, including Andromeda to the west and Cassiopeia to the north. Perseus is also bordered by Aries and Taurus to the south, Auriga to the east, Camelopardalis to the north, and Triangulum to the west.The galactic plane of the Milky Way passes through Perseus but is mostly obscured by molecular clouds. The constellation's brightest star is the yellow-white supergiant Alpha Persei (also called Mirfak), which shines at magnitude 1.79. It and many of the surrounding stars are members of an open cluster known as the Alpha Persei Cluster. The best-known star, however, is Algol (Beta Persei), linked with ominous legends because of its variability, which is noticeable to the naked eye. Rather than being an intrinsically variable star, it is an eclipsing binary. Other notable star systems in Perseus include X Persei, a binary system containing a neutron star, and GK Persei, a nova that peaked at magnitude 0.2 in 1901. The Double Cluster, comprising two open clusters quite near each other in the sky, was known to the ancient Chinese. The constellation gives its name to the Perseus Cluster (Abell 426), a massive galaxy cluster located 250 million light-years from Earth. It hosts the radiant of the annual Perseids meteor shower—one of the most prominent meteor showers in the sky.