Warm-Up Monday, July 23, 2012
... • A. The stars of Orion are closer together in space. • B. The stars in Orion orbit the Sun, just like the planets. • C. The brightest stars in Orion are the ones that are closest to us. • D. You can’t tell if the brightest stars in Orion are really brighter than the others, or if they are just clos ...
... • A. The stars of Orion are closer together in space. • B. The stars in Orion orbit the Sun, just like the planets. • C. The brightest stars in Orion are the ones that are closest to us. • D. You can’t tell if the brightest stars in Orion are really brighter than the others, or if they are just clos ...
The future sun March 18 −
... • Fri & Sat, 9-11pm, if it is not cloudy. • Mar 18 & 19 • Apr 15 & 16 • May 13 & 14 • 24-inch telescope in dome • small telescopes outside ...
... • Fri & Sat, 9-11pm, if it is not cloudy. • Mar 18 & 19 • Apr 15 & 16 • May 13 & 14 • 24-inch telescope in dome • small telescopes outside ...
Chapter19
... greater speed and hear a click as the two cars bang into one another (before being pushed apart). I finish by asking what would happen if the magnets were stronger, simulating nuclei of greater charge. This sounds pretty simple-minded, but I find it helps students who have no feeling for electric ch ...
... greater speed and hear a click as the two cars bang into one another (before being pushed apart). I finish by asking what would happen if the magnets were stronger, simulating nuclei of greater charge. This sounds pretty simple-minded, but I find it helps students who have no feeling for electric ch ...
Exploring other Solar Systems
... light years away. GSMT will be able to analyze their spectra and determine their chemical composition – a key to understanding whether they were built up in a manner similar to our own Jupiter (by collisions among solid body), or by a very different mechanisms (gas gathered together quickly in favor ...
... light years away. GSMT will be able to analyze their spectra and determine their chemical composition – a key to understanding whether they were built up in a manner similar to our own Jupiter (by collisions among solid body), or by a very different mechanisms (gas gathered together quickly in favor ...
After the ZAMS - Lincoln-Sudbury Regional High School
... Astronomers treat photos of clusters as if they were family photos, and use them to look for changes in particular types of stars with time. However, human family members have their own peculiarities (like wearing lipstick or moustaches), and so do the stars in a cluster. They are of different masse ...
... Astronomers treat photos of clusters as if they were family photos, and use them to look for changes in particular types of stars with time. However, human family members have their own peculiarities (like wearing lipstick or moustaches), and so do the stars in a cluster. They are of different masse ...
The most important questions to study for the exam
... 21. Two stars are sufficiently far away from the Earth that they cannot be resolved as separate stars but orbit each other with a large separation between them compared to the stars' radii. Furthermore, their orbital plane is inclined at 45∞ to the direction to the Earth from the star system. What o ...
... 21. Two stars are sufficiently far away from the Earth that they cannot be resolved as separate stars but orbit each other with a large separation between them compared to the stars' radii. Furthermore, their orbital plane is inclined at 45∞ to the direction to the Earth from the star system. What o ...
The winter triangle - NRC Publications Archive
... backyard. Our galaxy, one of billions, is about 100,000 light years in diameter. That is, it is so large that light takes roughly 100,000 light years to get from one side to the other. In more familiar units, a light year is just under 10,000,000,000,000 km. The most distant galaxies we can see are ...
... backyard. Our galaxy, one of billions, is about 100,000 light years in diameter. That is, it is so large that light takes roughly 100,000 light years to get from one side to the other. In more familiar units, a light year is just under 10,000,000,000,000 km. The most distant galaxies we can see are ...
High velocity clouds (v > 90 km/s), up to 108 M_sun in total Seen at
... This is how V should fall off with r as long as all of the mass is interior to the orbits being considered. Now, consider a spherical distribution of mass of uniform density, in which particles (stars) orbit inside the mass distribution. The mass interior to the orbit is then ! ...
... This is how V should fall off with r as long as all of the mass is interior to the orbits being considered. Now, consider a spherical distribution of mass of uniform density, in which particles (stars) orbit inside the mass distribution. The mass interior to the orbit is then ! ...
Lec8_2D
... If one star is much fainter than the other, you may not see its lines. The object is then a singleline spectroscopic binary. If both sets of lines are seen, then it’s called a double-line spectroscopic binary. ...
... If one star is much fainter than the other, you may not see its lines. The object is then a singleline spectroscopic binary. If both sets of lines are seen, then it’s called a double-line spectroscopic binary. ...
Last time: Star Clusters (sec. 19.6)
... cause the pressure to increase and the core expands, making itself nondegenerate; it settles into a new equilibrium between pressure and gravity converting He into C called “horizontal branch” phase, or just “core He burning.” In effect, the star is given a new chance to resist gravity but for a s ...
... cause the pressure to increase and the core expands, making itself nondegenerate; it settles into a new equilibrium between pressure and gravity converting He into C called “horizontal branch” phase, or just “core He burning.” In effect, the star is given a new chance to resist gravity but for a s ...
Today`s Powerpoint
... Measuring the Stars How big are stars? How far away are they? How bright are they? How hot? How old, and how long do they live? What is their chemical composition? How are they moving? Are they isolated or in clusters? By answering these questions, we not only learn about stars, but about the struc ...
... Measuring the Stars How big are stars? How far away are they? How bright are they? How hot? How old, and how long do they live? What is their chemical composition? How are they moving? Are they isolated or in clusters? By answering these questions, we not only learn about stars, but about the struc ...
November - LVAstronomy.com
... found in Cassiopeia. One of the finest, but often overlooked, is NGC-7789. Cassiopeia is one of the most recognized constellations. The constellation is circumpolar for anyone north of a line from San Francisco to Baltimore. When high above Polaris, five of its brightest stars roughly trace out the ...
... found in Cassiopeia. One of the finest, but often overlooked, is NGC-7789. Cassiopeia is one of the most recognized constellations. The constellation is circumpolar for anyone north of a line from San Francisco to Baltimore. When high above Polaris, five of its brightest stars roughly trace out the ...
The new europian project ROPACS (Rocky Planets Around …
... Plan and propose/implement space-based follow-up efforts to search for and measure planetary light (in the near- and mid-infrared) as they pass behind their host star. Assess and test/use sensitive ground-based facilities (e.g. GTC) to search for planetary light in the infrared. Optimize methods (in ...
... Plan and propose/implement space-based follow-up efforts to search for and measure planetary light (in the near- and mid-infrared) as they pass behind their host star. Assess and test/use sensitive ground-based facilities (e.g. GTC) to search for planetary light in the infrared. Optimize methods (in ...
Stars (Ch. 13)
... Luminosity Classes • Another method was discovered to measure the luminosity of a star (other than using a star’s apparent magnitude and the inverse square law) – It was noticed that some stars had very narrow absorption lines compared to other stars of the same temperature – It was also noticed th ...
... Luminosity Classes • Another method was discovered to measure the luminosity of a star (other than using a star’s apparent magnitude and the inverse square law) – It was noticed that some stars had very narrow absorption lines compared to other stars of the same temperature – It was also noticed th ...
1. - TeacherWeb
... Based on what you have learned, as well as previous knowledge, answer the following questions. 1. People have studied the stars for centuries. The ancient Greeks named groups of stars, called constellations. List at least five constellations. 2. Explain why scientists collect information from electr ...
... Based on what you have learned, as well as previous knowledge, answer the following questions. 1. People have studied the stars for centuries. The ancient Greeks named groups of stars, called constellations. List at least five constellations. 2. Explain why scientists collect information from electr ...
Review of "Man`s Place in Nature" by Alfred Russel Wallace
... telescopes until recent years there has been a proportionate increase in the number of visible stars. There are about 200,000 stars between the first and ninth magnitude; the number at each lesser magnitude being ...
... telescopes until recent years there has been a proportionate increase in the number of visible stars. There are about 200,000 stars between the first and ninth magnitude; the number at each lesser magnitude being ...
July - astra
... Globular Clusters look like fuzzy balls because they contain all night and always outshines any star. Everyone enjoys its 4 tens of thousands stars held together by their mutual gravity. All Galilean moons and cloud bands, easily visible at 50x. It is posof the globulars that can be seen in the sky ...
... Globular Clusters look like fuzzy balls because they contain all night and always outshines any star. Everyone enjoys its 4 tens of thousands stars held together by their mutual gravity. All Galilean moons and cloud bands, easily visible at 50x. It is posof the globulars that can be seen in the sky ...
Notes
... • About half of M dwarfs are flare stars (and a few K dwarfs, too) • A flare star brightens by a few tenths up to a magnitude in V (more in the UV) in a few seconds, returning to its normal luminosity within a few hours • Flare temperatures may be a million degrees or more • Some are spotted (BY Dra ...
... • About half of M dwarfs are flare stars (and a few K dwarfs, too) • A flare star brightens by a few tenths up to a magnitude in V (more in the UV) in a few seconds, returning to its normal luminosity within a few hours • Flare temperatures may be a million degrees or more • Some are spotted (BY Dra ...
15-1 Notes - westscidept
... use a ________________ to separate a star’s light into a spectrum. The spectrum gives information about the ______________ and temperature of a star. When a chemical element emits ________, only some colors in the spectrum appear. These are called ____________ lines. The __________ atmosphere of a s ...
... use a ________________ to separate a star’s light into a spectrum. The spectrum gives information about the ______________ and temperature of a star. When a chemical element emits ________, only some colors in the spectrum appear. These are called ____________ lines. The __________ atmosphere of a s ...
Krupp (1999) broadly defines the interdisciplinary field
... in order to eliminate human bias in identifying patterns, both celestial and in rock art. Such software exists, but it is tailored toward practical duplication (for example, ...
... in order to eliminate human bias in identifying patterns, both celestial and in rock art. Such software exists, but it is tailored toward practical duplication (for example, ...
Hipparcos
Hipparcos was a scientific satellite of the European Space Agency (ESA), launched in 1989 and operated until 1993. It was the first space experiment devoted to precision astrometry, the accurate measurement of the positions of celestial objects on the sky. This permitted the accurate determination of proper motions and parallaxes of stars, allowing a determination of their distance and tangential velocity. When combined with radial-velocity measurements from spectroscopy, this pinpointed all six quantities needed to determine the motion of stars. The resulting Hipparcos Catalogue, a high-precision catalogue of more than 118,200 stars, was published in 1997. The lower-precision Tycho Catalogue of more than a million stars was published at the same time, while the enhanced Tycho-2 Catalogue of 2.5 million stars was published in 2000. Hipparcos ' follow-up mission, Gaia, was launched in 2013.The word ""Hipparcos"" is an acronym for High precision parallax collecting satellite and also a reference to the ancient Greek astronomer Hipparchus of Nicaea, who is noted for applications of trigonometry to astronomy and his discovery of the precession of the equinoxes.