Week 4
... policy on time zones if the capital had been in Chongqing or Xi’an The largest time gap along a political border is the 3.5 hour gap along the border of China (UTC +8) and Afghanistan (UTC+4:30) ...
... policy on time zones if the capital had been in Chongqing or Xi’an The largest time gap along a political border is the 3.5 hour gap along the border of China (UTC +8) and Afghanistan (UTC+4:30) ...
Chapter 2: Discovering the Universe for Yourself
... Yes, this is a well studied phenomenon and its explanation proved a challenge to ancient astronomers. ...
... Yes, this is a well studied phenomenon and its explanation proved a challenge to ancient astronomers. ...
Detecting Earth Mass Planets with Gravitational
... We can also use the results of our probability calculations to help determine the optimal planetary search strategy. For example, given a large number of events to monitor for planetary deviations and a limited amount of observing time, how long should we follow each event ? The probabilities given ...
... We can also use the results of our probability calculations to help determine the optimal planetary search strategy. For example, given a large number of events to monitor for planetary deviations and a limited amount of observing time, how long should we follow each event ? The probabilities given ...
Dynamics of disks with planets
... Progress in observational techniques might allow us to find which of these two types of interaction is mainly responsible for the observed variety of orbits and exoplanet masses. New insights into the formation of our own system can be gained by asking why Jupiter and Saturn are not larger, closer t ...
... Progress in observational techniques might allow us to find which of these two types of interaction is mainly responsible for the observed variety of orbits and exoplanet masses. New insights into the formation of our own system can be gained by asking why Jupiter and Saturn are not larger, closer t ...
Tutorial: Escape Speed
... Escape Speed Interesting piece of information: IF the earth (magic?) could be collapsed to a radius of 0.008756 m (just about a centimeter) ...
... Escape Speed Interesting piece of information: IF the earth (magic?) could be collapsed to a radius of 0.008756 m (just about a centimeter) ...
01 - University of Warwick
... sun-like stars, most with ages ranging from 3 million to 30 have already formed in these young solar system analogs, or they never will,” Meyer said. million years. Astronomers suspect that gas around a star may also be important for sending terrestrial, or rocky, planets like Earth The scientists u ...
... sun-like stars, most with ages ranging from 3 million to 30 have already formed in these young solar system analogs, or they never will,” Meyer said. million years. Astronomers suspect that gas around a star may also be important for sending terrestrial, or rocky, planets like Earth The scientists u ...
Lecture 6
... Sun will have the same orbits • Also true for orbits around other objects (Earth, Jupiter) - means satellites around Earth can have similar orbits even if different masses PHYS 162 ...
... Sun will have the same orbits • Also true for orbits around other objects (Earth, Jupiter) - means satellites around Earth can have similar orbits even if different masses PHYS 162 ...
Time From the Perspective of a Particle Physicist
... Sun will have the same orbits • Also true for orbits around other objects (Earth, Jupiter) - means satellites around Earth can have similar orbits even if different masses PHYS 162 ...
... Sun will have the same orbits • Also true for orbits around other objects (Earth, Jupiter) - means satellites around Earth can have similar orbits even if different masses PHYS 162 ...
Design and the Anthropic Principle
... forces of physics (gravitational, electromagnetic, strong nuclear, and weak nuclear). Compared to the coupling constants, the fine structure constants typically yield stricter design constraints for the universe. For example, the electromagnetic fine structure constant affects the opacity of stellar ...
... forces of physics (gravitational, electromagnetic, strong nuclear, and weak nuclear). Compared to the coupling constants, the fine structure constants typically yield stricter design constraints for the universe. For example, the electromagnetic fine structure constant affects the opacity of stellar ...
PDF format
... a) the changing position of stars relative to each other due to their different speeds in the Milky Way. b) the changing position of nearby stars compared to background stars as Earth's axis precesses. c) the changing position of nearby stars compared to background stars as Earth orbits the Sun. ...
... a) the changing position of stars relative to each other due to their different speeds in the Milky Way. b) the changing position of nearby stars compared to background stars as Earth's axis precesses. c) the changing position of nearby stars compared to background stars as Earth orbits the Sun. ...
Cub Scout Astronomer Badge What to do next… There`s still some
... You will have: Been introduced to the Solar System in our planetarium. You will have found out some facts about Mars and Saturn in the quizzes and noticed the differences between the small rocky planets and the larger gas giants. ...
... You will have: Been introduced to the Solar System in our planetarium. You will have found out some facts about Mars and Saturn in the quizzes and noticed the differences between the small rocky planets and the larger gas giants. ...
Reasons for the Seasons Webquest
... and it is responsible for a gradual change in the location of the position in the sky where the Earth’s axis points. During the present epoch the Earth’s axis is aimed toward Polaris, the North Star, in the constellation of Ursa Minor. It is around this star that the sky appears to pivot once each d ...
... and it is responsible for a gradual change in the location of the position in the sky where the Earth’s axis points. During the present epoch the Earth’s axis is aimed toward Polaris, the North Star, in the constellation of Ursa Minor. It is around this star that the sky appears to pivot once each d ...
On the migration of a system of protoplanets
... planets, according to standard theory, have formed at distances of ...
... planets, according to standard theory, have formed at distances of ...
introduction to astronomy
... Describe the historical contributions made by early astrologers and astronomers ...
... Describe the historical contributions made by early astrologers and astronomers ...
22 circ motion gravitation fr File
... A highway curve that has a radius of curvature of 100 meters is banked at an angle of 15° as shown above. a. Determine the vehicle speed for which this curve is appropriate if there is no friction between the road and the tires of the vehicle. ...
... A highway curve that has a radius of curvature of 100 meters is banked at an angle of 15° as shown above. a. Determine the vehicle speed for which this curve is appropriate if there is no friction between the road and the tires of the vehicle. ...
On the migration of a system of protoplanets
... planets, according to standard theory, have formed at distances of ...
... planets, according to standard theory, have formed at distances of ...
assessing the massive young sun hypothesis to solve the warm
... increase as the Sun loses mass. The populations and dynamics of objects near resonances with the planets, as well as those of distant irregular satellites of the giant planets, may contain the signature of a more massive young Sun. Planetary and satellite orbits provide a few tests, but these are we ...
... increase as the Sun loses mass. The populations and dynamics of objects near resonances with the planets, as well as those of distant irregular satellites of the giant planets, may contain the signature of a more massive young Sun. Planetary and satellite orbits provide a few tests, but these are we ...
Gravitational redshifts
... outside transit. This simulation sequence from a CO5BOLD model predicts the behavior of an Fe I line ( 620 nm, = 3 eV) during the first half of a transit across the stellar equator by a bloated Jupiter-size exoplanet moving in a prograde orbit, covering 2% of a main-sequence star with solar metal ...
... outside transit. This simulation sequence from a CO5BOLD model predicts the behavior of an Fe I line ( 620 nm, = 3 eV) during the first half of a transit across the stellar equator by a bloated Jupiter-size exoplanet moving in a prograde orbit, covering 2% of a main-sequence star with solar metal ...
Questions - Clever Teach
... Suggest why, when a galaxy has a very large red-shift, some of its visible light is not detected through the Earth’s atmosphere. ...
... Suggest why, when a galaxy has a very large red-shift, some of its visible light is not detected through the Earth’s atmosphere. ...
Slide 1
... then you might want to do a little reading. Below are a few great places to start: http://www.nineplanets.org/ - This site will answer about 85% of your questions right off the bat. http://solarsystem.nasa.gov/multimedia/nasagalleries.cfm - Great stuff and awesome pictures http://www.dustbunny.com/a ...
... then you might want to do a little reading. Below are a few great places to start: http://www.nineplanets.org/ - This site will answer about 85% of your questions right off the bat. http://solarsystem.nasa.gov/multimedia/nasagalleries.cfm - Great stuff and awesome pictures http://www.dustbunny.com/a ...
The Night Sky This Month - Usk Astronomical Society
... middle of September and the middle of October is a good time, this year, for observing Mercury. Venus is in the west in the evening twilight throughout the month and is unfavourable. Mars is just west of south at dusk throughout this month and is poorly placed for observation. In the first days of t ...
... middle of September and the middle of October is a good time, this year, for observing Mercury. Venus is in the west in the evening twilight throughout the month and is unfavourable. Mars is just west of south at dusk throughout this month and is poorly placed for observation. In the first days of t ...
Investigation Activity 1
... The apparent size of an object—how big it appears to our eyes— is just a measure of the angle between one end of the object and the other. We call this angle the “subtended angle”. Notice, from the formula above, that the subtended angle is proportional to 1/distance. This is just the mathematical s ...
... The apparent size of an object—how big it appears to our eyes— is just a measure of the angle between one end of the object and the other. We call this angle the “subtended angle”. Notice, from the formula above, that the subtended angle is proportional to 1/distance. This is just the mathematical s ...
mass of star
... So if the Sun's lifetime is 10 billion years, the smallest 0.1 MSun star's lifetime is 1 trillion years. ...
... So if the Sun's lifetime is 10 billion years, the smallest 0.1 MSun star's lifetime is 1 trillion years. ...
Powerpoint for today
... So if the Sun's lifetime is 10 billion years, the smallest 0.1 MSun star's lifetime is 1 trillion years. ...
... So if the Sun's lifetime is 10 billion years, the smallest 0.1 MSun star's lifetime is 1 trillion years. ...
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 ...
Extraterrestrial life
Extraterrestrial life is life that does not originate from Earth. It is also called alien life, or, if it is a sentient and/or relatively complex individual, an ""extraterrestrial"" or ""alien"" (or, to avoid confusion with the legal sense of ""alien"", a ""space alien""). These as-yet-hypothetical life forms range from simple bacteria-like organisms to beings with civilizations far more advanced than humanity. Although many scientists expect extraterrestrial life to exist, so far no unambiguous evidence for its existence exists.The science of extraterrestrial life is known as exobiology. The science of astrobiology also considers life on Earth as well, and in the broader astronomical context. Meteorites that have fallen to Earth have sometimes been examined for signs of microscopic extraterrestrial life. Since the mid-20th century, there has been an ongoing search for signs of extraterrestrial intelligence, from radios used to detect possible extraterrestrial signals, to telescopes used to search for potentially habitable extrasolar planets. It has also played a major role in works of science fiction. Over the years, science fiction works, especially Hollywood's involvement, has increased the public's interest in the possibility of extraterrestrial life. Some encourage aggressive methods to try to get in contact with life in outer space, whereas others argue that it might be dangerous to actively call attention to Earth.