Measuring the distance to Galaxies
... twice as luminous but its brightness is halved. It is less than twice as far away. (It will be 1.4 times as far away). ...
... twice as luminous but its brightness is halved. It is less than twice as far away. (It will be 1.4 times as far away). ...
Kepler
... • The Kepler instrument is a specially designed 0.95-meter diameter telescope called a photometer or light meter. • It has a very large field of view — 105 square degrees, which is comparable to the area of your hand held at arm's length. • Using this wide field of view it will stare at the same sta ...
... • The Kepler instrument is a specially designed 0.95-meter diameter telescope called a photometer or light meter. • It has a very large field of view — 105 square degrees, which is comparable to the area of your hand held at arm's length. • Using this wide field of view it will stare at the same sta ...
SIERRA STAR GAZERS
... sky. Situated only 10,000 light years away, M22 is one of the nearest globulars to us. Look just to the left of the top star in the teapot lid (Kaus Borealis) and there it is. In his work, The Hobbit, J.R.R. Tolkien described M22 thus, “if a globe had been filled with moonlight and hung before them ...
... sky. Situated only 10,000 light years away, M22 is one of the nearest globulars to us. Look just to the left of the top star in the teapot lid (Kaus Borealis) and there it is. In his work, The Hobbit, J.R.R. Tolkien described M22 thus, “if a globe had been filled with moonlight and hung before them ...
30 Doradus - HubbleSOURCE
... Sagittarius and Canis Major galaxies. It is 160,000 light years away from us, corresponding to 10,000,000,000 times the distance between the earth and the sun. If we are in the southern hemisphere we can see the Large Magellanic Cloud with the naked eye in the Dorado ...
... Sagittarius and Canis Major galaxies. It is 160,000 light years away from us, corresponding to 10,000,000,000 times the distance between the earth and the sun. If we are in the southern hemisphere we can see the Large Magellanic Cloud with the naked eye in the Dorado ...
What is a star?
... • Apparent magnitude is the measure of a star’s brightness as seen from Earth. • Ancient astronomers, using only their eyes, described star brightness by magnitude. • They called the brightest stars they could see first magnitude and the faintest stars they could see sixth magnitude. ...
... • Apparent magnitude is the measure of a star’s brightness as seen from Earth. • Ancient astronomers, using only their eyes, described star brightness by magnitude. • They called the brightest stars they could see first magnitude and the faintest stars they could see sixth magnitude. ...
So, our cosmic address is
... light travels 64,000 AU, or 6,000,000,000,000 (6 trillion) miles. Light travels at 186,291 miles per second! It takes light 8½ minutes to travel from the Sun to Earth. That’s a distance of 1 AU or 93,000,000 miles. 12 light year long jet emanating from a newborn star ...
... light travels 64,000 AU, or 6,000,000,000,000 (6 trillion) miles. Light travels at 186,291 miles per second! It takes light 8½ minutes to travel from the Sun to Earth. That’s a distance of 1 AU or 93,000,000 miles. 12 light year long jet emanating from a newborn star ...
Discoveries with the Green Bank Telescope
... chemistry and the organic chemistry of life on Earth is of profound interest. Biologically relevant molecules are found in extended regions of molecular clouds and their emission is best studied at longer wavelengths. The low surface brightness molecular lines are generally resolved out by interfero ...
... chemistry and the organic chemistry of life on Earth is of profound interest. Biologically relevant molecules are found in extended regions of molecular clouds and their emission is best studied at longer wavelengths. The low surface brightness molecular lines are generally resolved out by interfero ...
the link to the powerpoint for Monday
... • Flux is a way for an observer to measure brightness that is observed. • We measure the energy received each second in a certain area of our detector (square meter). • We can call this ‘fluxiness’ • Normal humans often refer to this as intensity – but astronomers have a different and more complex d ...
... • Flux is a way for an observer to measure brightness that is observed. • We measure the energy received each second in a certain area of our detector (square meter). • We can call this ‘fluxiness’ • Normal humans often refer to this as intensity – but astronomers have a different and more complex d ...
Name - CLC Charter School
... type II supernova. Again lets get a closer look. If the star’s iron core is massive enough, when it collapses, it will explode in a supernova. Some scientists think that type Ib supernovae are actually type II. The hydrogen was probably blown away by the huge star’s strong stellar winds before the s ...
... type II supernova. Again lets get a closer look. If the star’s iron core is massive enough, when it collapses, it will explode in a supernova. Some scientists think that type Ib supernovae are actually type II. The hydrogen was probably blown away by the huge star’s strong stellar winds before the s ...
Document
... Sagittarius and Canis Major galaxies. It is 160,000 light years away from us, corresponding to 10,000,000,000 times the distance between the earth and the sun. If we are in the southern hemisphere we can see the Large Magellanic Cloud with the naked eye in the Dorado ...
... Sagittarius and Canis Major galaxies. It is 160,000 light years away from us, corresponding to 10,000,000,000 times the distance between the earth and the sun. If we are in the southern hemisphere we can see the Large Magellanic Cloud with the naked eye in the Dorado ...
IT`S UNIVERSAL GRAVITY CONCEPTS
... there were no surface beneath you, you would fall toward the nearest, most massive object (in our case, the Earth). When the only force acting on you is gravity, and there is nothing to resist this force and keep you from falling, you are said to be in a state of “free-fall.” It is in this state tha ...
... there were no surface beneath you, you would fall toward the nearest, most massive object (in our case, the Earth). When the only force acting on you is gravity, and there is nothing to resist this force and keep you from falling, you are said to be in a state of “free-fall.” It is in this state tha ...
Observers` Forum - British Astronomical Association
... energetic evolved stars of the live-fast-dieyoung category. They reach their red giant stage after only a few million years on the main sequence compared to several billion years for stars like the Sun. The expelled envelope of this star forms the outer edge of what we now see as the Crescent, with ...
... energetic evolved stars of the live-fast-dieyoung category. They reach their red giant stage after only a few million years on the main sequence compared to several billion years for stars like the Sun. The expelled envelope of this star forms the outer edge of what we now see as the Crescent, with ...
File - 5th Grade Science Almost done!!!!!!!!!
... • The first thing the students do when they enter the room is write down the homework (see next slide) in stone-silence. • After about 20 to 30 seconds of silence I tell the students “Please begin the warm up.” • Please go through the ppt with the students. Students will have to write items in blue ...
... • The first thing the students do when they enter the room is write down the homework (see next slide) in stone-silence. • After about 20 to 30 seconds of silence I tell the students “Please begin the warm up.” • Please go through the ppt with the students. Students will have to write items in blue ...
Jura et al. 2004 - Department of Physics and Astronomy
... maximum temperature and thus no evidence for any inner truncation in the dust distribution. There are four stars where we use equation (2) to fit the data, and we thus find a characteristic grain temperature, which, from equation (3), we can translate into a distance from the star. Using the values ...
... maximum temperature and thus no evidence for any inner truncation in the dust distribution. There are four stars where we use equation (2) to fit the data, and we thus find a characteristic grain temperature, which, from equation (3), we can translate into a distance from the star. Using the values ...
A Comparison of CCD Images Taken with Different Cameras Abstract
... Figures 5–6 have been reduced from their original raw form. Noise sources have been reduced or eliminated. For more information about CCD noise sources, see the paper by B. Teasdel which discusses cosmic rays, bias frames, dark counts and flat field corrections. The IRAF software package was used fo ...
... Figures 5–6 have been reduced from their original raw form. Noise sources have been reduced or eliminated. For more information about CCD noise sources, see the paper by B. Teasdel which discusses cosmic rays, bias frames, dark counts and flat field corrections. The IRAF software package was used fo ...
HOU Supernova Light Curves
... leaving nothing behind. The expanding cloud of ejecta glows brightly for many weeks as radioactive nickel produced in the explosion decays into cobalt and then iron. ...
... leaving nothing behind. The expanding cloud of ejecta glows brightly for many weeks as radioactive nickel produced in the explosion decays into cobalt and then iron. ...
The Mt John University Observatory search for Earth
... dedicated to a few systems rather than to include as many targets as possible. The need of RV searches to focus on nearby bright stars has an attractive side-effect: the targets are all very close to the Sun, unlike the Kepler targets or microlensing systems, which are at typical distances of severa ...
... dedicated to a few systems rather than to include as many targets as possible. The need of RV searches to focus on nearby bright stars has an attractive side-effect: the targets are all very close to the Sun, unlike the Kepler targets or microlensing systems, which are at typical distances of severa ...
Star Birth
... Life Tracks for Different Masses • Models show that Sun required about 30 million years to go from protostar to main sequence • Higher-mass stars form faster • Lower-mass stars form more slowly ...
... Life Tracks for Different Masses • Models show that Sun required about 30 million years to go from protostar to main sequence • Higher-mass stars form faster • Lower-mass stars form more slowly ...
Homework #2, AST 203, Spring 2012
... step. No more than two points per problem for overly high precision. Three points off for each arithmetic or algebra error. Further calculations correctly done based on this erroneous value should be given full credit. However, if the resulting answer is completely ludicrous (e.g., 10−30 seconds for ...
... step. No more than two points per problem for overly high precision. Three points off for each arithmetic or algebra error. Further calculations correctly done based on this erroneous value should be given full credit. However, if the resulting answer is completely ludicrous (e.g., 10−30 seconds for ...
Interacting Galaxies
... Far from being solitary and isolated island universes, many galaxies are found to be interacting. Their close encounters can lead to spectacular mergers and spawn vast amounts of new star formation. Astronomers estimate that in the nearby universe, 1 out of every 20 gas-rich disk galaxies, like our ...
... Far from being solitary and isolated island universes, many galaxies are found to be interacting. Their close encounters can lead to spectacular mergers and spawn vast amounts of new star formation. Astronomers estimate that in the nearby universe, 1 out of every 20 gas-rich disk galaxies, like our ...
International Ultraviolet Explorer
The International Ultraviolet Explorer (IUE) was an astronomical observatory satellite primarily designed to take ultraviolet spectra. The satellite was a collaborative project between NASA, the UK Science Research Council and the European Space Agency (ESA). The mission was first proposed in early 1964, by a group of scientists in the United Kingdom, and was launched on January 26, 1978 aboard a NASA Delta rocket. The mission lifetime was initially set for 3 years, but in the end it lasted almost 18 years, with the satellite being shut down in 1996. The switch-off occurred for financial reasons, while the telescope was still functioning at near original efficiency.It was the first space observatory to be operated in real time by astronomers who visited the groundstations in the United States and Europe. Astronomers made over 104,000 observations using the IUE, of objects ranging from solar system bodies to distant quasars. Among the significant scientific results from IUE data were the first large scale studies of stellar winds, accurate measurements of the way interstellar dust absorbs light, and measurements of the supernova SN1987A which showed that it defied stellar evolution theories as they then stood. When the mission ended, it was considered the most successful astronomical satellite ever.