Announcements Ancient astronomers: Why did they do it? Why did
... Kepler’s First Law 1. Each planet’s orbit around the Sun is an ellipse, with the Sun at one focus. ...
... Kepler’s First Law 1. Each planet’s orbit around the Sun is an ellipse, with the Sun at one focus. ...
No Slide Title
... • For these great distances, miles are no longer practical, we use: ‘Light Years’ • the distance it takes light to travel in one year moving at 186,000 miles per second or about 6 million million miles (6 trillion miles) ...
... • For these great distances, miles are no longer practical, we use: ‘Light Years’ • the distance it takes light to travel in one year moving at 186,000 miles per second or about 6 million million miles (6 trillion miles) ...
Power Point Presentation
... Planets move faster when they are closer to the sun, and slower when they are further away Planets that are closer to the sun orbit faster than planets farther away ...
... Planets move faster when they are closer to the sun, and slower when they are further away Planets that are closer to the sun orbit faster than planets farther away ...
I : Internal structure of main sequence stars
... The luminosity L The efficiency of the fusion η The mass of the star M The fraction of the stellar mass that can participate in the fusion reactions f ...
... The luminosity L The efficiency of the fusion η The mass of the star M The fraction of the stellar mass that can participate in the fusion reactions f ...
PowerPoint Presentation - ASTR498E High energy
... The mass of the star M The fraction of the stellar mass that can participate in the fusion reactions f ...
... The mass of the star M The fraction of the stellar mass that can participate in the fusion reactions f ...
170 Years of observational astronomy in Greece: telescopes and
... Dimensions: 38×16×5 cm – Filar micrometer with six eyepieces. It was made by Casella in 1850, the dimensions are 17x9x6 cm and the material is brass. – Theodolite of the beginning of the 20th century, with length 24 cm, width 28 cm, and base diameter 9 cm. – Sextant, for the determination of the alt ...
... Dimensions: 38×16×5 cm – Filar micrometer with six eyepieces. It was made by Casella in 1850, the dimensions are 17x9x6 cm and the material is brass. – Theodolite of the beginning of the 20th century, with length 24 cm, width 28 cm, and base diameter 9 cm. – Sextant, for the determination of the alt ...
fall_2000_final
... B. why we never see the lunar far side. C. why we see the Moon sometimes during the day. D. why earthshine occurs. E. why a solar eclipse doesn’t occur every month. 40. There have been 102 extrasolar planets discovered since 1995. How were they detected? A. analysis of radio signals sent by an alien ...
... B. why we never see the lunar far side. C. why we see the Moon sometimes during the day. D. why earthshine occurs. E. why a solar eclipse doesn’t occur every month. 40. There have been 102 extrasolar planets discovered since 1995. How were they detected? A. analysis of radio signals sent by an alien ...
Astronomical Distances
... One of the hardest concepts to get your head around in astronomy is just how big the things we talk about really are. Walking from P.E. to the auto shop at NVHS is a long way, but is it a long way when we are talking about traveling by car? In a car, going from Chicago to Champaign is a long way, bu ...
... One of the hardest concepts to get your head around in astronomy is just how big the things we talk about really are. Walking from P.E. to the auto shop at NVHS is a long way, but is it a long way when we are talking about traveling by car? In a car, going from Chicago to Champaign is a long way, bu ...
History Of Astronomy
... Born in 1564 and died in 1642. Galileo was an astronomer, physicist and mathematician. Galileo is often called the father of modern science. He is the first astronomer to receive credit for being the first to look at the Moon's surface and publish his findings. This historic event took place in his ...
... Born in 1564 and died in 1642. Galileo was an astronomer, physicist and mathematician. Galileo is often called the father of modern science. He is the first astronomer to receive credit for being the first to look at the Moon's surface and publish his findings. This historic event took place in his ...
Cosmology 2 - schoolphysics
... 16. Describe the structure of our galaxy and state the approximate position of the Sun in the galaxy. 17. Describe the structure of three different types of galaxy. 18. What is Olbers’ paradox and how can it be resolved. 19. What is meant by the Cosmological principle? 20. What is Hubble’s Law? (Ex ...
... 16. Describe the structure of our galaxy and state the approximate position of the Sun in the galaxy. 17. Describe the structure of three different types of galaxy. 18. What is Olbers’ paradox and how can it be resolved. 19. What is meant by the Cosmological principle? 20. What is Hubble’s Law? (Ex ...
Quiz # 3
... d. making a blackbody curve and finding the wavelength of the peak (maximum) e. measuring the intensity of radio waves the star gives off 2. The most important function of an astronomical telescope is to: a. pierce through the clouds so a cloudy night is not wasted b. bring distant objects closer by ...
... d. making a blackbody curve and finding the wavelength of the peak (maximum) e. measuring the intensity of radio waves the star gives off 2. The most important function of an astronomical telescope is to: a. pierce through the clouds so a cloudy night is not wasted b. bring distant objects closer by ...
sun notes
... Top layer of the Sun’s atmosphere. It extends several million kilometers from the top of the chromosphere. It has a temperature range of 1 million____ to 2 million__ Kelvin. The _density____ of the gas in the corona is so low that it can only be seen during a total solar eclipse. o Gas flows out ...
... Top layer of the Sun’s atmosphere. It extends several million kilometers from the top of the chromosphere. It has a temperature range of 1 million____ to 2 million__ Kelvin. The _density____ of the gas in the corona is so low that it can only be seen during a total solar eclipse. o Gas flows out ...
The star
... preserve, all the fruit of their genius, they brought here to this distant world in the days before the end, hoping that some other race would find it and that they would not be utterly forgotten. Would we have done as well, or would we have been too lost in our own misery to give thought to a futur ...
... preserve, all the fruit of their genius, they brought here to this distant world in the days before the end, hoping that some other race would find it and that they would not be utterly forgotten. Would we have done as well, or would we have been too lost in our own misery to give thought to a futur ...
Linking Asteroids and Meteorites through Reflectance Spectroscopy
... determine velocities of objects? • Doppler Shift – The wavelength of light changes as the source moves towards or away from you • Since you know the wavelength position of emission or absorption features • If the positions of the features move in wavelength position, you know the source is moving ...
... determine velocities of objects? • Doppler Shift – The wavelength of light changes as the source moves towards or away from you • Since you know the wavelength position of emission or absorption features • If the positions of the features move in wavelength position, you know the source is moving ...
Motions of the Earth
... the ecliptic. Mercury, Venus, Mars, Jupiter and Saturn are all naked-eye objects ...
... the ecliptic. Mercury, Venus, Mars, Jupiter and Saturn are all naked-eye objects ...
Vampy Astronomy Syllabus
... State the nebular theory for the formation of stars and planets. Provide evidence in support of the nebular theory for the formation of stars and planets. Explain how planetary distances are determined using the transit of Venus. Describe both the Ptolemaic (geocentric) and Copernican/Galilean (heli ...
... State the nebular theory for the formation of stars and planets. Provide evidence in support of the nebular theory for the formation of stars and planets. Explain how planetary distances are determined using the transit of Venus. Describe both the Ptolemaic (geocentric) and Copernican/Galilean (heli ...
chapter3 - Empyrean Quest Publishers
... • Compiled the most accurate (one arcminute) naked eye measurements ever made of planetary positions. • Still could not detect stellar parallax, and thus still thought Earth must be at center of solar system (but recognized that other planets go around Sun) • Hired Kepler, who used Tycho’s observati ...
... • Compiled the most accurate (one arcminute) naked eye measurements ever made of planetary positions. • Still could not detect stellar parallax, and thus still thought Earth must be at center of solar system (but recognized that other planets go around Sun) • Hired Kepler, who used Tycho’s observati ...
Name: Period: ______ Date: 1/16/07
... kilometers from Earth. Such a large number is difficult to understand and use in calculations. For this reason, astronomers use a different unit of measurement when they talk about distances between stars. ...
... kilometers from Earth. Such a large number is difficult to understand and use in calculations. For this reason, astronomers use a different unit of measurement when they talk about distances between stars. ...
Integrative Studies 410 Our Place in the Universe
... – Moon 0.5, Sun 0.5, Jupiter 20”, Betelgeuse (α Ori) 0.05” ...
... – Moon 0.5, Sun 0.5, Jupiter 20”, Betelgeuse (α Ori) 0.05” ...
PPT - Max-Planck-Institut für Astronomie
... • High precision astrometry for distances and proper motions (10 as @ V=15 1% distance at 1kpc) • Observe entire sky down to V=20 @ 0.1–0.5´´ resolution 109 stars across all stellar populations + 105 quasars, 107 galaxies, 105 SNe, 106 SSOs • Observe everything in 15 medium and broad band filte ...
... • High precision astrometry for distances and proper motions (10 as @ V=15 1% distance at 1kpc) • Observe entire sky down to V=20 @ 0.1–0.5´´ resolution 109 stars across all stellar populations + 105 quasars, 107 galaxies, 105 SNe, 106 SSOs • Observe everything in 15 medium and broad band filte ...
Star Life Cycles
... After becoming a planetary nebula, the remains of the core of the star become a white dwarf. A white dwarf is a star that has exhausted most or all of its nuclear fuel and has collapsed to a very small size; such a star is near its final stage of life. White dwarfs eventually become black dwarfs ...
... After becoming a planetary nebula, the remains of the core of the star become a white dwarf. A white dwarf is a star that has exhausted most or all of its nuclear fuel and has collapsed to a very small size; such a star is near its final stage of life. White dwarfs eventually become black dwarfs ...
Introduction and some basic concepts
... distance from the Earth to the Sun (the Astronomical Unit) is 93 million miles (150 million km). It takes light 8.3 minutes to travel from the Sun to the Earth. ...
... distance from the Earth to the Sun (the Astronomical Unit) is 93 million miles (150 million km). It takes light 8.3 minutes to travel from the Sun to the Earth. ...
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.