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ES 104 Midterm Exam Study Guide 1
... Know that the 2 most abundant elements in the Sun are H and He. Know the source of the Sun’s energy – nuclear fusion reactions in the Sun’s core where H nuclei are combined to form He nuclei. The stars and interstellar matter Know what a light year is and that it is used in describing stellar distan ...
... Know that the 2 most abundant elements in the Sun are H and He. Know the source of the Sun’s energy – nuclear fusion reactions in the Sun’s core where H nuclei are combined to form He nuclei. The stars and interstellar matter Know what a light year is and that it is used in describing stellar distan ...
Calculate the Mass of the Milky Way Galaxy
... • During the uncertainties of the era, Hubble was able to observe galaxies at distances up to 7 million light years away. By doing so he was able to come up with Hubble's Law, which said that the further galaxies were away from earth the faster they moved away from our planet. Hubble's rule proved t ...
... • During the uncertainties of the era, Hubble was able to observe galaxies at distances up to 7 million light years away. By doing so he was able to come up with Hubble's Law, which said that the further galaxies were away from earth the faster they moved away from our planet. Hubble's rule proved t ...
Unit 6: Astronomy
... How fast can you go? Actually, every second you travel 18.5 miles through space! That's right, 18.5 miles per second, or 1110 miles in one hour! And as a passenger on the planet Earth, each year you travel approximately 600 million miles along the Earth's orbit around the Sun, held in orbit by gravi ...
... How fast can you go? Actually, every second you travel 18.5 miles through space! That's right, 18.5 miles per second, or 1110 miles in one hour! And as a passenger on the planet Earth, each year you travel approximately 600 million miles along the Earth's orbit around the Sun, held in orbit by gravi ...
Milky Way
... Stellar spectra •Approximate black body spectrum – color tells you temperature •Red is cool, blue is hot •Spectral lines tell you a lot about the star •Different lines for each element (and ionization state) •Strength tells you about composition and temperature ...
... Stellar spectra •Approximate black body spectrum – color tells you temperature •Red is cool, blue is hot •Spectral lines tell you a lot about the star •Different lines for each element (and ionization state) •Strength tells you about composition and temperature ...
Outline of Lecture on Copernican Revolution: 1. Source of word
... Planets move faster when they are closer to the sun. Ptolemy “explained” this by a nonuniform motion of the guiding center of the epicycle about the guiding center circle. Copernicus, perhaps rediscovering something that muslim mathematicians had realized two centuries before him, used a small epicy ...
... Planets move faster when they are closer to the sun. Ptolemy “explained” this by a nonuniform motion of the guiding center of the epicycle about the guiding center circle. Copernicus, perhaps rediscovering something that muslim mathematicians had realized two centuries before him, used a small epicy ...
Dynamics of elliptical galaxies
... Dynamics of elliptical galaxies Galaxies that appear elliptical on the sky may be intrinsically oblate, prolate, or triaxial, depending upon their symmetries: ...
... Dynamics of elliptical galaxies Galaxies that appear elliptical on the sky may be intrinsically oblate, prolate, or triaxial, depending upon their symmetries: ...
Astronomytests a
... your chosen return reflector into your star diagonal. Then position the collimator at the proper distance as described in the instructions. Proper distance for my setup was right around one tube length. Next, co-align the collimator and telescope. I found this to be the most timeconsuming part of th ...
... your chosen return reflector into your star diagonal. Then position the collimator at the proper distance as described in the instructions. Proper distance for my setup was right around one tube length. Next, co-align the collimator and telescope. I found this to be the most timeconsuming part of th ...
M13/4/PHYSI/SP3/ENG/TZ1/XX Tuesday 7 May
... On the Hertzsprung–Russell diagram, label the position of star X with the letter X. ...
... On the Hertzsprung–Russell diagram, label the position of star X with the letter X. ...
The spin-orbit angle of the transiting hot Jupiter CoRoT
... data are given in Table 1. We chose to alternate between the R and B filters because the difference in transit light-curve shape between red and blue wavelengths, caused by the wavelength dependence of the amount of stellar limb darkening, offers a useful complementary constraint on the transit impa ...
... data are given in Table 1. We chose to alternate between the R and B filters because the difference in transit light-curve shape between red and blue wavelengths, caused by the wavelength dependence of the amount of stellar limb darkening, offers a useful complementary constraint on the transit impa ...
Deployment of the Hobby-Eberly Telescope wide
... the telescope correctly aligned. The WFC is a four-mirror design with two concave 1 meter diameter mirrors, one concave 0.9 meter diameter mirror, and one convex 0.23 m diameter mirror. The corrector is designed for feeding optical fibers at f/3.65 to minimize focal ratio degradation, and so the chi ...
... the telescope correctly aligned. The WFC is a four-mirror design with two concave 1 meter diameter mirrors, one concave 0.9 meter diameter mirror, and one convex 0.23 m diameter mirror. The corrector is designed for feeding optical fibers at f/3.65 to minimize focal ratio degradation, and so the chi ...
Preview Sample 2
... The magnitude scale is confusing because it is an inverse scale, meaning that bright objects have smaller magnitudes than fainter objects. Additionally, the scale is logarithmic and not linear. That is, one star that is two times brighter than another does not have two times (or half) the magnitude ...
... The magnitude scale is confusing because it is an inverse scale, meaning that bright objects have smaller magnitudes than fainter objects. Additionally, the scale is logarithmic and not linear. That is, one star that is two times brighter than another does not have two times (or half) the magnitude ...
PARALLAX – IT`S SIMPLE! Abstract
... of only a few hundreds of stars were known. The accuracy of parallax measurements was vastly improved when the European Space Agency HIPPARCOS satellite went into orbit. Its catalogue, published in 1997, gave parallaxes of 120 thousand of stars with accuracy of 0.002 arcsecond and therefore it was p ...
... of only a few hundreds of stars were known. The accuracy of parallax measurements was vastly improved when the European Space Agency HIPPARCOS satellite went into orbit. Its catalogue, published in 1997, gave parallaxes of 120 thousand of stars with accuracy of 0.002 arcsecond and therefore it was p ...
Christiaan Huygens and his telescopes
... didn’t owe this discovery to his visual observations only: it was also the result of his deductive reasoning. Christiaan came to the right solution of the puzzle by examining old telescopic observations made by other astronomers during the first half of the 17th century. These astronomers didn’t yet ...
... didn’t owe this discovery to his visual observations only: it was also the result of his deductive reasoning. Christiaan came to the right solution of the puzzle by examining old telescopic observations made by other astronomers during the first half of the 17th century. These astronomers didn’t yet ...
Cuesta College Eclipsing Binary Project Briefing
... Photometry is the measurement of apparent magnitudes of astronomical objects, like stars. It is derived from the word Photon which is a quantum, or discrete amount of electro-magnetic energy. To “do” photometry one simply measures the amount of this energy using devices that are made to collect phot ...
... Photometry is the measurement of apparent magnitudes of astronomical objects, like stars. It is derived from the word Photon which is a quantum, or discrete amount of electro-magnetic energy. To “do” photometry one simply measures the amount of this energy using devices that are made to collect phot ...
Progenitor and environment of the peculiar red nova V838 Mon
... Detailed investigation of V838 Mon revealed cardinal differences between peculiar red and classical novae. In their outbursts, red novae turn into red K-M type supergiants and do not pass a nebular stage. In an explosion of a red nova, several solar masses of the matter is erupted into space whereas ...
... Detailed investigation of V838 Mon revealed cardinal differences between peculiar red and classical novae. In their outbursts, red novae turn into red K-M type supergiants and do not pass a nebular stage. In an explosion of a red nova, several solar masses of the matter is erupted into space whereas ...
FREE Sample Here
... A) It contains between 100 billion and 1 trillion stars. B) Our solar system is located very close to the center of the Milky Way Galaxy. C) The galaxy is about 100,000 light-years in diameter. D) One rotation of the galaxy takes about 200 million years. Answer: B 25) Which of the following correctl ...
... A) It contains between 100 billion and 1 trillion stars. B) Our solar system is located very close to the center of the Milky Way Galaxy. C) The galaxy is about 100,000 light-years in diameter. D) One rotation of the galaxy takes about 200 million years. Answer: B 25) Which of the following correctl ...
The Night Sky
... beach ball. Now our Sun (basketball) looks bigger than the large star (beach ball). Explain that our Sun looks bigger than other stars because it is much closer to us. 2. Activity: Investigate star colors. Ask students if they know what stars are made of. They are balls of hot glowing gases. Stars r ...
... beach ball. Now our Sun (basketball) looks bigger than the large star (beach ball). Explain that our Sun looks bigger than other stars because it is much closer to us. 2. Activity: Investigate star colors. Ask students if they know what stars are made of. They are balls of hot glowing gases. Stars r ...
Instrumentation progress at the Giant Magellan Telescope project
... The GMT Multi-object Astronomical and Cosmological Spectrograph (GMACS) is a general purpose, visible light (3500-9500 Å), multi-object, slit spectrograph (MOS) that covers a relatively wide field (approximately 7.5’ diameter). Spectral resolutions of 1000-6000 are enabled by multiple VPH gratings i ...
... The GMT Multi-object Astronomical and Cosmological Spectrograph (GMACS) is a general purpose, visible light (3500-9500 Å), multi-object, slit spectrograph (MOS) that covers a relatively wide field (approximately 7.5’ diameter). Spectral resolutions of 1000-6000 are enabled by multiple VPH gratings i ...
IN 175 SkyView Pro 8 EQ
... a closer view. If the object is off-center (i.e., it is near the edge of the field of view) you will lose it when you increase magnification since the field of view will be narrower with the higher-powered eyepiece. To change eyepieces, first loosen the securing thumbscrew on the focuser. Then caref ...
... a closer view. If the object is off-center (i.e., it is near the edge of the field of view) you will lose it when you increase magnification since the field of view will be narrower with the higher-powered eyepiece. To change eyepieces, first loosen the securing thumbscrew on the focuser. Then caref ...
Expanding Earth and Static Universe: Two Papers of 1935
... Abstract: The German-born astronomer Jacob K. E. Halm (1866-1944) wrote in 1935 two papers on quite different subjects, one an astrophysically based argument for the expanding Earth and the other a no less original attempt to explain the galactic redshifts on the basis of a static universe. Of cours ...
... Abstract: The German-born astronomer Jacob K. E. Halm (1866-1944) wrote in 1935 two papers on quite different subjects, one an astrophysically based argument for the expanding Earth and the other a no less original attempt to explain the galactic redshifts on the basis of a static universe. Of cours ...
second sun - royal device
... rendered in exquisite detail — deep red and bright blue stars are scattered across the frame, set against a background of thousands of more distant stars and galaxies. Two features are particularly striking: the colors of the stars, and the dramatic crosses that burst from the centers of the brighte ...
... rendered in exquisite detail — deep red and bright blue stars are scattered across the frame, set against a background of thousands of more distant stars and galaxies. Two features are particularly striking: the colors of the stars, and the dramatic crosses that burst from the centers of the brighte ...
13.1 Introduction 13.2 The Red Giant Branch
... the same for all stellar masses. However, the conditions in the core at the ignition of helium are very different in low-mass stars (which have degenerate cores) from stars of higher mass (with non-degenerate cores). The electrons in the core of a 1M star are completely degenerate by the time the s ...
... the same for all stellar masses. However, the conditions in the core at the ignition of helium are very different in low-mass stars (which have degenerate cores) from stars of higher mass (with non-degenerate cores). The electrons in the core of a 1M star are completely degenerate by the time the s ...
Kborne-ESSI-august2010-datamining
... Plan (pending Decadal Survey): commissioning in 2016 3-Gigapixel camera One 6-Gigabyte image every 20 seconds 30 Terabytes every night for 10 years 100-Petabyte final image data archive anticipated – all data are public!!! ...
... Plan (pending Decadal Survey): commissioning in 2016 3-Gigapixel camera One 6-Gigabyte image every 20 seconds 30 Terabytes every night for 10 years 100-Petabyte final image data archive anticipated – all data are public!!! ...
A brief history of extra-solar planets - X
... A brief history of extra-solar planets • In the 16th century the Italian philosopher Giordano Bruno said that the fixed stars are really suns like our own, with planets going ...
... A brief history of extra-solar planets • In the 16th century the Italian philosopher Giordano Bruno said that the fixed stars are really suns like our own, with planets going ...
International Ultraviolet Explorer
![](https://en.wikipedia.org/wiki/Special:FilePath/International_Ultraviolet_Explorer.gif?width=300)
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.