Edited_Lecture_Transcripts_05_06 - 05 - astronomo
... above it against the, the force of gravity, and so, as you go down into the earth, pressures become very, very high. Densities become very high. We have density so, pressure so high at the center of the Earth that despite the fact that as we'll see, temperatures are very high. The center of the Ear ...
... above it against the, the force of gravity, and so, as you go down into the earth, pressures become very, very high. Densities become very high. We have density so, pressure so high at the center of the Earth that despite the fact that as we'll see, temperatures are very high. The center of the Ear ...
5th Grade “I Can Statements”
... I can explain that the moon reflects light from the sun, and it appears to change shape because its revolution around the earth causes it to show different portions of the lit half. I can explain that because of the earth's counterclockwise rotation, the moon and sun seem to rise in the east and se ...
... I can explain that the moon reflects light from the sun, and it appears to change shape because its revolution around the earth causes it to show different portions of the lit half. I can explain that because of the earth's counterclockwise rotation, the moon and sun seem to rise in the east and se ...
Lesson 1 | Earth`s Motion
... in the universe—the Sun, Moon, planets, and stars—orbits Earth. The geocentric model was the system that Aristotle (384–322 B.C.) and Ptolemy (165– ~85 B.C.) taught. Because observations were made by the unaided eye, the scientists of ancient Greece made two assumptions that supported the geocentric ...
... in the universe—the Sun, Moon, planets, and stars—orbits Earth. The geocentric model was the system that Aristotle (384–322 B.C.) and Ptolemy (165– ~85 B.C.) taught. Because observations were made by the unaided eye, the scientists of ancient Greece made two assumptions that supported the geocentric ...
strange new Worlds - Scholars at Princeton
... The types of systems we would like to check are those for which there is no evidence of any dramatic planetary rearrangements. The stars in such systems should always have low obliquities, if our story for hot Jupiters is correct. Our group is pursuing this task by targeting planetary systems more l ...
... The types of systems we would like to check are those for which there is no evidence of any dramatic planetary rearrangements. The stars in such systems should always have low obliquities, if our story for hot Jupiters is correct. Our group is pursuing this task by targeting planetary systems more l ...
Stargazer - Everett Astronomical Society
... EAS member Ron Tam has offered a flexible opportunity to EAS members to come to his home north of Snohomish for observing on clear weekend evenings and for EAS star parties. Anyone wishing to do so needs to contact him in advance and confirm available dates, and let him know if plans change. “Our pl ...
... EAS member Ron Tam has offered a flexible opportunity to EAS members to come to his home north of Snohomish for observing on clear weekend evenings and for EAS star parties. Anyone wishing to do so needs to contact him in advance and confirm available dates, and let him know if plans change. “Our pl ...
The Distribution of Stars Most Likely to Harbor Intelligent Life
... of the habitable star that divides the distribution into fractions f and (1 − f ). The thick solid curve corresponds to f = 1/2 in Eqs. (11) and (13) and gives the median intelligent star lifetime as a function of the specified Ti ; i.e., in the set consisting of all civilizations that have the same ...
... of the habitable star that divides the distribution into fractions f and (1 − f ). The thick solid curve corresponds to f = 1/2 in Eqs. (11) and (13) and gives the median intelligent star lifetime as a function of the specified Ti ; i.e., in the set consisting of all civilizations that have the same ...
Microlensing Studies in Crowded Fields
... • Can survey at least six fields (so ~2x107 stars) per night so should be able to detect ~20-50 new microlensing events/night. • The planetary detection probabilities from Bennett & Rhie (ApJ,472,660,1996) suggest we should detect a good number of Earth size planets. 7 May 2014: Cambridge Exoplanets ...
... • Can survey at least six fields (so ~2x107 stars) per night so should be able to detect ~20-50 new microlensing events/night. • The planetary detection probabilities from Bennett & Rhie (ApJ,472,660,1996) suggest we should detect a good number of Earth size planets. 7 May 2014: Cambridge Exoplanets ...
Mankind`s Purple Dawn
... That the earth was originally encased in a similar situation under a brown dwarf star called Saturn is central to understanding why mythology tells us our most primordial existence was one of darkness, an age when Saturn hovered as a dull orb in the chaotic swirls of the northern skies. Outside star ...
... That the earth was originally encased in a similar situation under a brown dwarf star called Saturn is central to understanding why mythology tells us our most primordial existence was one of darkness, an age when Saturn hovered as a dull orb in the chaotic swirls of the northern skies. Outside star ...
Venus
... Go to pdsd.eprolix.com. Click on the Projects link. Use the links under The Solar System to answer the following questions. 1. Is Venus called the brother OR sister planet to Earth? _______________ 2. Venus rotates _________________________. 3. What is the diameter (size) of Venus? _________________ ...
... Go to pdsd.eprolix.com. Click on the Projects link. Use the links under The Solar System to answer the following questions. 1. Is Venus called the brother OR sister planet to Earth? _______________ 2. Venus rotates _________________________. 3. What is the diameter (size) of Venus? _________________ ...
Astronomy From Å to ZZ — Howard L. Cohen
... column will help beginning stargazers ease into the world of astronomy by briefly introducing a new but basic astronomical term (word, acronym or abbreviation) each month. This list, which began January 1999 with the letter a, is alphabetical but uses successive letters for each month’s entry. (We w ...
... column will help beginning stargazers ease into the world of astronomy by briefly introducing a new but basic astronomical term (word, acronym or abbreviation) each month. This list, which began January 1999 with the letter a, is alphabetical but uses successive letters for each month’s entry. (We w ...
Phobos
... just less than 13” wide around mid-month. Mars: races across Capricorn this March but remains mired low in morning twilight for viewers at mid-northern latitudes. It rises only about 100 minutes prior to the Sun throughout the month. The red planet shines at magnitude +1.2 when it passes 1o south of ...
... just less than 13” wide around mid-month. Mars: races across Capricorn this March but remains mired low in morning twilight for viewers at mid-northern latitudes. It rises only about 100 minutes prior to the Sun throughout the month. The red planet shines at magnitude +1.2 when it passes 1o south of ...
CHAPTER 29 STARS 240 points
... spectral lines. Spectral lines help scientists determine the speed of a star’s motion. Motion between the source of light and the observer cause the spectral lines to shift in wavelength. Depending on whether the wavelength is shorter or longer, the observer can determine if the star is moving towar ...
... spectral lines. Spectral lines help scientists determine the speed of a star’s motion. Motion between the source of light and the observer cause the spectral lines to shift in wavelength. Depending on whether the wavelength is shorter or longer, the observer can determine if the star is moving towar ...
kristen.gattshall.file7.1454335203.2016
... • 12. In blue dotted lines with arrows, draw the orbit of the earth around the sun. It should be a counterclockwise orbit! • In blue, along your line, write “365 ¼ days” since that’s how long it takes to orbit! ...
... • 12. In blue dotted lines with arrows, draw the orbit of the earth around the sun. It should be a counterclockwise orbit! • In blue, along your line, write “365 ¼ days” since that’s how long it takes to orbit! ...
The Celestial Sphere - University of North Texas
... • By extending your hand at arm's length, you can approximate a many degree measurements. – Apparent width of one finger at arm's length is about 1o ...
... • By extending your hand at arm's length, you can approximate a many degree measurements. – Apparent width of one finger at arm's length is about 1o ...
meteor shower
... • The stream of debris is called the Perseid cloud and stretches along the orbit of the comet Swift-Tuttle. The cloud consists of particles ejected by the comet as it travels on its 130-year orbit. • Most of the dust in the cloud today is around a thousand years old. However, there is also a relativ ...
... • The stream of debris is called the Perseid cloud and stretches along the orbit of the comet Swift-Tuttle. The cloud consists of particles ejected by the comet as it travels on its 130-year orbit. • Most of the dust in the cloud today is around a thousand years old. However, there is also a relativ ...
Eclipse of the Sun 1 September 2016
... A total solar Eclipse in 1919 was used to test Albert Einstein's theory of general relativity. By taking pictures of stars near the Sun during totality, scientists were able to show that gravity can bend light from stars, also called gravitational refraction. ...
... A total solar Eclipse in 1919 was used to test Albert Einstein's theory of general relativity. By taking pictures of stars near the Sun during totality, scientists were able to show that gravity can bend light from stars, also called gravitational refraction. ...
relative size and distance
... Improving Accuracy • To improve accuracy, we need – large baseline ...
... Improving Accuracy • To improve accuracy, we need – large baseline ...
Stephen Ashworth
... On 24 August 2006, the 26th General Assembly of the International Astronomical Union (IAU 2006) attempted to settle the status of bodies orbiting the Sun as follows: (1) A planet [1] is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rig ...
... On 24 August 2006, the 26th General Assembly of the International Astronomical Union (IAU 2006) attempted to settle the status of bodies orbiting the Sun as follows: (1) A planet [1] is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rig ...
Precession of Earth
... changes the stars near the Pole; It does not affect the seasons. Nutation is the wobbling during precession; 1/2° one way or the other; period of 18 years; due to the Moon; It slightly effects seasons. This type of axis movement is similar to that of a spinning top. As the top slows, the axis of rot ...
... changes the stars near the Pole; It does not affect the seasons. Nutation is the wobbling during precession; 1/2° one way or the other; period of 18 years; due to the Moon; It slightly effects seasons. This type of axis movement is similar to that of a spinning top. As the top slows, the axis of rot ...
Chapter 9 - Astronomy
... about that of water ice. The density, dark color, and retrograde orbit of Phoebe, an outer moon, suggest that it formed in the outer solar system and was captured by Saturn’s gravitational field 3. Enceladus is covered in water ice and its interior may be liquid today. Active geysers exists on this ...
... about that of water ice. The density, dark color, and retrograde orbit of Phoebe, an outer moon, suggest that it formed in the outer solar system and was captured by Saturn’s gravitational field 3. Enceladus is covered in water ice and its interior may be liquid today. Active geysers exists on this ...
A Binary Mass-Orbit Nomenclature for Planetary Bodies
... On 24 August 2006, the 26th General Assembly of the International Astronomical Union (IAU 2006) attempted to settle the status of bodies orbiting the Sun as follows: (1) A planet [1] is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rig ...
... On 24 August 2006, the 26th General Assembly of the International Astronomical Union (IAU 2006) attempted to settle the status of bodies orbiting the Sun as follows: (1) A planet [1] is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rig ...
Unit 8 Chapter 28 Minor Bodies of the Solar System
... More than a thousand asteroids have orbits that sometimes bring them very close to Earth. These asteroids have wide, elliptical orbits that bring them near Earth's orbit. Barringer Meteorite Crater, also known simply as Meteor Crater, in Arizona, has a diameter of more than 1 km which scientists bel ...
... More than a thousand asteroids have orbits that sometimes bring them very close to Earth. These asteroids have wide, elliptical orbits that bring them near Earth's orbit. Barringer Meteorite Crater, also known simply as Meteor Crater, in Arizona, has a diameter of more than 1 km which scientists bel ...
ppt
... “By reason of the deviation of the Sun from the center of gravity, the centripetal force does not always tend to that immobile center, and hence the planets neither move exactly in ellipses nor revolve twice in the same orbit. There are as many orbits of a planet as it has revolutions, as in the mot ...
... “By reason of the deviation of the Sun from the center of gravity, the centripetal force does not always tend to that immobile center, and hence the planets neither move exactly in ellipses nor revolve twice in the same orbit. There are as many orbits of a planet as it has revolutions, as in the mot ...
Astronomy Exam - domenicoscience
... 175. Some people believe that Jupiter is a star that had too little mass to "ignite". Explain this theory. a. Jupiter is hot on the inside due to friction. b. Jupiter has too little mass to start nuclear fusion in the core. c. Jupiter is much larger than a “regular” sized planet. d. More than one of ...
... 175. Some people believe that Jupiter is a star that had too little mass to "ignite". Explain this theory. a. Jupiter is hot on the inside due to friction. b. Jupiter has too little mass to start nuclear fusion in the core. c. Jupiter is much larger than a “regular” sized planet. d. More than one of ...
The Stars Tonight
... utilize and observation, as the ancients certainly could do; and having a full understanding of the situation leading to their observations, which ancient peoples certainly did not have. (Ancients could predict when and where an object would appear in the sky, some could even predict phenomena like ...
... utilize and observation, as the ancients certainly could do; and having a full understanding of the situation leading to their observations, which ancient peoples certainly did not have. (Ancients could predict when and where an object would appear in the sky, some could even predict phenomena like ...
Astrobiology
Astrobiology is the study of the origin, evolution, distribution, and future of life in the universe: extraterrestrial life and life on Earth. This interdisciplinary field encompasses the search for habitable environments in our Solar System and habitable planets outside our Solar System, the search for evidence of prebiotic chemistry, laboratory and field research into the origins and early evolution of life on Earth, and studies of the potential for life to adapt to challenges on Earth and in outer space. Astrobiology addresses the question of whether life exists beyond Earth, and how humans can detect it if it does. (The term exobiology is similar but more specific—it covers the search for life beyond Earth, and the effects of extraterrestrial environments on living things.)Astrobiology makes use of physics, chemistry, astronomy, biology, molecular biology, ecology, planetary science, geography, and geology to investigate the possibility of life on other worlds and help recognize biospheres that might be different from the biosphere on Earth. The origin and early evolution of life is an inseparable part of the discipline of astrobiology. Astrobiology concerns itself with interpretation of existing scientific data; given more detailed and reliable data from other parts of the universe, the roots of astrobiology itself—physics, chemistry and biology—may have their theoretical bases challenged. Although speculation is entertained to give context, astrobiology concerns itself primarily with hypotheses that fit firmly into existing scientific theories.The chemistry of life may have begun shortly after the Big Bang, 13.8 billion years ago, during a habitable epoch when the Universe was only 10–17 million years old. According to the panspermia hypothesis, microscopic life—distributed by meteoroids, asteroids and other small Solar System bodies—may exist throughout the universe. According to research published in August 2015, very large galaxies may be more favorable to the creation and development of habitable planets than smaller galaxies, like the Milky Way galaxy. Nonetheless, Earth is the only place in the universe known to harbor life. Estimates of habitable zones around other stars, along with the discovery of hundreds of extrasolar planets and new insights into the extreme habitats here on Earth, suggest that there may be many more habitable places in the universe than considered possible until very recently.Current studies on the planet Mars by the Curiosity and Opportunity rovers are now searching for evidence of ancient life as well as plains related to ancient rivers or lakes that may have been habitable. The search for evidence of habitability, taphonomy (related to fossils), and organic molecules on the planet Mars is now a primary NASA objective on Mars.