PDF Version - OMICS International
... Dergachev - Physics-Uspekhi, 2011 - turpion.org 5. Coming of age and development of space physics at Moscow State University. Radiation in space: the legacy of SN Vernov, MI Panasyuk Physics-Uspekhi, 2011 - turpion.org ...
... Dergachev - Physics-Uspekhi, 2011 - turpion.org 5. Coming of age and development of space physics at Moscow State University. Radiation in space: the legacy of SN Vernov, MI Panasyuk Physics-Uspekhi, 2011 - turpion.org ...
The HLCO Project - High Legh Community Observatory
... The largest known star by volume is KW Sagitari which is a whopping 1500 times the size of our Sun The heaviest known star is R136A1 in the Tarantula Nebula which started life as a lumbering 320 times heavier than the Sun The hottest known stars belongs to a special class known as a ‘Wolf-Rayet’ and ...
... The largest known star by volume is KW Sagitari which is a whopping 1500 times the size of our Sun The heaviest known star is R136A1 in the Tarantula Nebula which started life as a lumbering 320 times heavier than the Sun The hottest known stars belongs to a special class known as a ‘Wolf-Rayet’ and ...
Other galaxies, the expansion of the universe
... Slipher had at his disposal only the 24-inch refractor at Lowell Observatory. In 1917 a much larger telescope was inaugurated – the 100-inch telescope at Mount Wilson, California. Observations with the 100-inch soon proved that the nebulae studied by Slipher were “island universes” -- other galaxies ...
... Slipher had at his disposal only the 24-inch refractor at Lowell Observatory. In 1917 a much larger telescope was inaugurated – the 100-inch telescope at Mount Wilson, California. Observations with the 100-inch soon proved that the nebulae studied by Slipher were “island universes” -- other galaxies ...
Chapter 21
... Betelgeuse a red supergiant, with about 20 times the mass and 800 times the radius of the Sun, so huge that it could easily contain the orbits of Mercury, Venus, Earth, Mars & Jupiter. It will probably explode as a supernova at some point within the next 100,000 years. Even at its relatively remote ...
... Betelgeuse a red supergiant, with about 20 times the mass and 800 times the radius of the Sun, so huge that it could easily contain the orbits of Mercury, Venus, Earth, Mars & Jupiter. It will probably explode as a supernova at some point within the next 100,000 years. Even at its relatively remote ...
Science Assessment Stage H--Performance Standard 12F-H
... Have students review and discuss the assessment task and how the rubric will be used to evaluate their work. This activity can introduce or reinforce information about the characteristics of Stars of Winter (for the Northern Hemisphere). Randomly distribute the star cards among the students. Ask stu ...
... Have students review and discuss the assessment task and how the rubric will be used to evaluate their work. This activity can introduce or reinforce information about the characteristics of Stars of Winter (for the Northern Hemisphere). Randomly distribute the star cards among the students. Ask stu ...
Constellations and the Galactic Plane
... are all familiar names to northern hemisphere night sky watchers. There are 88 named constellations, each having numerous stars. This exercise takes you through some of the most recognizable ones in the October-November sky in the Bay Area. The patterns of stars remain the same over the ages. That i ...
... are all familiar names to northern hemisphere night sky watchers. There are 88 named constellations, each having numerous stars. This exercise takes you through some of the most recognizable ones in the October-November sky in the Bay Area. The patterns of stars remain the same over the ages. That i ...
Top 10
... how bright many of these stars are as well. The nearby Andromeda galaxy looks virtually identical to our own Milky Way galaxy. We can measure the size of these galaxies and compare them to our own, and get good agreement. The size of the disk of our galaxy is about 100,000 light years across, which ...
... how bright many of these stars are as well. The nearby Andromeda galaxy looks virtually identical to our own Milky Way galaxy. We can measure the size of these galaxies and compare them to our own, and get good agreement. The size of the disk of our galaxy is about 100,000 light years across, which ...
An Introduction to Astronomy and Cosmology
... • BUT 5 magnitude steps = 100 in brightness • So Z = (100)1/5 = 2.512 ...
... • BUT 5 magnitude steps = 100 in brightness • So Z = (100)1/5 = 2.512 ...
The Milky Way and Its Neighbors
... • Companions to Milky Way or other galaxies such as M31 • Little or no gas or dust • No recent star formation • Approximately spheroidal in shape ...
... • Companions to Milky Way or other galaxies such as M31 • Little or no gas or dust • No recent star formation • Approximately spheroidal in shape ...
Spectral analysis for the RV Tau star R Sct: In this section, we will
... have luminosity classes of III, II, or I (where class II has properties in between III and I). Luminosity class V stars, like the sun, are main sequence stars and are generally used for reference as they do not vary and their intrinsic properties are well known. “By eye” we can see that the blue spe ...
... have luminosity classes of III, II, or I (where class II has properties in between III and I). Luminosity class V stars, like the sun, are main sequence stars and are generally used for reference as they do not vary and their intrinsic properties are well known. “By eye” we can see that the blue spe ...
PHYS 2410 General Astronomy Homework 1
... 10. ___________ is the brightest star in the constellation of Ursa Majoris. ...
... 10. ___________ is the brightest star in the constellation of Ursa Majoris. ...
Measuring the Milky Way
... These objects are very close to the Galactic center. The orbit on the right is the best fit; it assumes a central black hole of 3.7 million solar masses. ...
... These objects are very close to the Galactic center. The orbit on the right is the best fit; it assumes a central black hole of 3.7 million solar masses. ...
24.1 Hubble`s Galaxy Classification
... resolved, but you could get this from the width of a spectral line if you couldn’t resolve the galaxy. This galaxy is NGC 4603, about 30 Mpc away. ...
... resolved, but you could get this from the width of a spectral line if you couldn’t resolve the galaxy. This galaxy is NGC 4603, about 30 Mpc away. ...
Centers of Galaxies = Black Holes and Quasars [23]
... • Measured flux + distance Î huge luminosity • Up to 1000 x luminosity of an entire galaxy of stars. ...
... • Measured flux + distance Î huge luminosity • Up to 1000 x luminosity of an entire galaxy of stars. ...
Lesson Plans - Houston ISD
... Ⓡ _SCI.8.8A Describe components of the universe including stars, nebulae and galaxies, and use models such as the Herztsprung-Russell diagram for classification. Ⓢ _SCI.8.8B Recognize that the Sun is a medium-sized star near the edge of a disc-shaped galaxy of stars and that the Sun is many thousand ...
... Ⓡ _SCI.8.8A Describe components of the universe including stars, nebulae and galaxies, and use models such as the Herztsprung-Russell diagram for classification. Ⓢ _SCI.8.8B Recognize that the Sun is a medium-sized star near the edge of a disc-shaped galaxy of stars and that the Sun is many thousand ...
Targets for Small Telescopes
... NGC 253 is an easy galaxy to resolve in medium instruments. An 8” telescope at high power will begin to show a lot of detail in the nucleus as well as the multitude of dust clouds in the arms. NGC 253 is easily observed in small to medium power binoculars, although no detail is ...
... NGC 253 is an easy galaxy to resolve in medium instruments. An 8” telescope at high power will begin to show a lot of detail in the nucleus as well as the multitude of dust clouds in the arms. NGC 253 is easily observed in small to medium power binoculars, although no detail is ...
Correct answers shown in boldface. Be sure to write your name and
... 28. Gravitational lenses in galaxy clusters are used a. to confirm that the clusters have huge amounts of dark matter b. to get a better view of the Big Bang c. to search for distant planets d. to study the theory of relativity e. to improve our determination of Hubble's Law 29. Interstellar dust ma ...
... 28. Gravitational lenses in galaxy clusters are used a. to confirm that the clusters have huge amounts of dark matter b. to get a better view of the Big Bang c. to search for distant planets d. to study the theory of relativity e. to improve our determination of Hubble's Law 29. Interstellar dust ma ...
Notes: Star Formation
... – The protostar officially becomes a star once fusion begins. • The star is now in the Main Sequence –90% of stars are in the main sequence –All main sequence stars fuse hydrogen ...
... – The protostar officially becomes a star once fusion begins. • The star is now in the Main Sequence –90% of stars are in the main sequence –All main sequence stars fuse hydrogen ...
Stars - Red, Blue, Old, New pt.2
... • Leads us to the conclusion that mass is a very important factor in stellar evolution • The more massive a star is, the faster it will evolve (due to faster thermonuclear reaction rates in core) • Main sequence lifetime of sun is 12 billion years; 50xsun only about 50,000 years ...
... • Leads us to the conclusion that mass is a very important factor in stellar evolution • The more massive a star is, the faster it will evolve (due to faster thermonuclear reaction rates in core) • Main sequence lifetime of sun is 12 billion years; 50xsun only about 50,000 years ...
DSLR photometry - British Astronomical Association
... Photometry is one of many areas in astronomy where amateurs can make useful contributions. Other areas include astrometry, occultation timings, and recording high quality observations of solar system objects. There are also projects for “armchair astronomers”, such as Galaxy Zoo. ...
... Photometry is one of many areas in astronomy where amateurs can make useful contributions. Other areas include astrometry, occultation timings, and recording high quality observations of solar system objects. There are also projects for “armchair astronomers”, such as Galaxy Zoo. ...
Theme 5: The Rise of the Telescope:
... measurements, first of Mars, and then later of asteroids (the first asteroid, Ceres, was discovered in 1801 by Piazzi). The advantage of asteroids was that they have star-like images and brightnesses, which means that it is much easier to measure their positions accurately with respect to comparison ...
... measurements, first of Mars, and then later of asteroids (the first asteroid, Ceres, was discovered in 1801 by Piazzi). The advantage of asteroids was that they have star-like images and brightnesses, which means that it is much easier to measure their positions accurately with respect to comparison ...
Spiral arms in the milky way galaxy and cosmic rays
... nearly circular orbits around the galactic center. The Central Bulge is characterized with stars with large random motions. Therefore its distribution is ellipsoidal. The star in the disk has a differential velocity, meaning the star nearer to the center has a shorter period of motion. ...
... nearly circular orbits around the galactic center. The Central Bulge is characterized with stars with large random motions. Therefore its distribution is ellipsoidal. The star in the disk has a differential velocity, meaning the star nearer to the center has a shorter period of motion. ...
mam.evolution
... Why are high temperatures needed for nuclear fusion? a) electrons must be moving quickly to change orbitals b) the high temperature is necessary to fully cook the new ...
... Why are high temperatures needed for nuclear fusion? a) electrons must be moving quickly to change orbitals b) the high temperature is necessary to fully cook the new ...
Big Bang Theory
... Introduction: Have you ever listened to the siren of an ambulance? As the ambulance passes by, the pitch of its siren gets lower. This occurs because of the Doppler shift. Sound waves are compressed as the ambulance approaches, causing the pitch to be higher. As the ambulance drives away, the sound ...
... Introduction: Have you ever listened to the siren of an ambulance? As the ambulance passes by, the pitch of its siren gets lower. This occurs because of the Doppler shift. Sound waves are compressed as the ambulance approaches, causing the pitch to be higher. As the ambulance drives away, the sound ...
Chapter 17 Measuring the Stars
... • In addition to “normal” stars, there are also red giants, red supergiants, blue giants, blue supergiants, red dwarfs, and white dwarfs • Luminosity class can distinguish giant star from mainsequence one in the same spectral class • If spectrum is measured, can find luminosity; combining this with ...
... • In addition to “normal” stars, there are also red giants, red supergiants, blue giants, blue supergiants, red dwarfs, and white dwarfs • Luminosity class can distinguish giant star from mainsequence one in the same spectral class • If spectrum is measured, can find luminosity; combining this with ...
Cosmic distance ladder
The cosmic distance ladder (also known as the extragalactic distance scale) is the succession of methods by which astronomers determine the distances to celestial objects. A real direct distance measurement of an astronomical object is possible only for those objects that are ""close enough"" (within about a thousand parsecs) to Earth. The techniques for determining distances to more distant objects are all based on various measured correlations between methods that work at close distances and methods that work at larger distances. Several methods rely on a standard candle, which is an astronomical object that has a known luminosity.The ladder analogy arises because no one technique can measure distances at all ranges encountered in astronomy. Instead, one method can be used to measure nearby distances, a second can be used to measure nearby to intermediate distances, and so on. Each rung of the ladder provides information that can be used to determine the distances at the next higher rung.