Studying Space Section 2
... provided evidence of Earth’s rotation by using a pendulum. • The path of the pendulum appeared to change over time. However, it was the floor that was moving while the pendulum’s path stayed constant. The Coriolis Effect • The rotation of Earth causes ocean currents and wind belts to curve to the le ...
... provided evidence of Earth’s rotation by using a pendulum. • The path of the pendulum appeared to change over time. However, it was the floor that was moving while the pendulum’s path stayed constant. The Coriolis Effect • The rotation of Earth causes ocean currents and wind belts to curve to the le ...
Full moon
... In upper atmosphere (thermosphere, ionosphere), charged particles interact with atmospheric gases to emit light. Nitrogen – blue or purplish-red Low altitude (100-300 km) oxygen – yellowish-green High altitude (>300 km) oxygen – red (rare) Very low altitude (100 km) nitrogen – reddish fringe on bott ...
... In upper atmosphere (thermosphere, ionosphere), charged particles interact with atmospheric gases to emit light. Nitrogen – blue or purplish-red Low altitude (100-300 km) oxygen – yellowish-green High altitude (>300 km) oxygen – red (rare) Very low altitude (100 km) nitrogen – reddish fringe on bott ...
24-Semantics
... • Corollary: expressions like “Santa Claus” are not meaningless, even though they have no referents in this world. • Their meaning, or “sense”, is their set of referents in all possible worlds. • You can talk about Santa Claus because you know what the world would be like if he existed. ...
... • Corollary: expressions like “Santa Claus” are not meaningless, even though they have no referents in this world. • Their meaning, or “sense”, is their set of referents in all possible worlds. • You can talk about Santa Claus because you know what the world would be like if he existed. ...
Gravity
... the basic force in the universe. Every body (planet, moon, star, comet, asteroid, meteor, etc.) in the solar system has a force that pulls things to itself. That's gravity- the force of attraction between all objects in the universe. ...
... the basic force in the universe. Every body (planet, moon, star, comet, asteroid, meteor, etc.) in the solar system has a force that pulls things to itself. That's gravity- the force of attraction between all objects in the universe. ...
Motion in the Sky & Getting to know the Sky
... The amount of the moon’s face that is “lit up” increases daily from New Moon to Waxing Crescent to Full, then decreases daily from Full Moon to Waning Crescent to New Moon. ...
... The amount of the moon’s face that is “lit up” increases daily from New Moon to Waxing Crescent to Full, then decreases daily from Full Moon to Waning Crescent to New Moon. ...
The Sky Viewed from Earth - Beck-Shop
... Of course, the stars in a given constellation are not physically linked and are distributed in three-dimensional space, so if there are any other civilizations in the general neighborhood of our galaxy, and if they should search for shapes in their sky, they would see different patterns even if they ...
... Of course, the stars in a given constellation are not physically linked and are distributed in three-dimensional space, so if there are any other civilizations in the general neighborhood of our galaxy, and if they should search for shapes in their sky, they would see different patterns even if they ...
04jan20.ppt
... Greeks did not think the stars could be that far away, and therefore rejected the correct explanation (1)… Thus setting the stage for the long, historical showdown between Earth-centered and Sun-centered systems. ...
... Greeks did not think the stars could be that far away, and therefore rejected the correct explanation (1)… Thus setting the stage for the long, historical showdown between Earth-centered and Sun-centered systems. ...
Schedule for Spring 2013 SCI 103 Introductory Astronomy
... Derivation of Kepler’s 3rd Law as it applies to binary stars Class exercise on stellar masses Masses of main sequence spectral types ...
... Derivation of Kepler’s 3rd Law as it applies to binary stars Class exercise on stellar masses Masses of main sequence spectral types ...
PH709-assn-answers
... The material observed as debris discs are believed to form well after the planet formation epoch where impacts generate some dust and small debris. The mass is not sufficient to allow planets to form either through coalescence or gravity. ...
... The material observed as debris discs are believed to form well after the planet formation epoch where impacts generate some dust and small debris. The mass is not sufficient to allow planets to form either through coalescence or gravity. ...
Ch. 21 notes-1
... There are billions of galaxies in the universe. Astronomers have classified most galaxies into three main categories: spiral, elliptical and irregular. Spiral Galaxies A spiral galaxy is a galaxy that has the shape of twin spirals. They have arms that spiral outward, like pinwheels. The Milky Way ...
... There are billions of galaxies in the universe. Astronomers have classified most galaxies into three main categories: spiral, elliptical and irregular. Spiral Galaxies A spiral galaxy is a galaxy that has the shape of twin spirals. They have arms that spiral outward, like pinwheels. The Milky Way ...
microwaves - TeacherWeb
... One of NASA’s Great Observatories, Chandra has been in space since 1999. ...
... One of NASA’s Great Observatories, Chandra has been in space since 1999. ...
February 2015 - Hermanus Astronomy
... A closely dancing pair: Venus and Mars During the latter part of February, bright white Venus and red Mars, will be visible close together, low towards the west soon after sunset. On the 22nd, they will form the closest naked-eye planetary grouping this year. It is an interesting example of how plan ...
... A closely dancing pair: Venus and Mars During the latter part of February, bright white Venus and red Mars, will be visible close together, low towards the west soon after sunset. On the 22nd, they will form the closest naked-eye planetary grouping this year. It is an interesting example of how plan ...
Eclipse of the Sun 1 September 2016
... Annular Eclipse – occurs when the moon is farthest from the Earth in its orbit. This makes the moon look smaller, so during the eclipse you see an outer ring of light from the Sun. The eclipse will look like this from Reunion island. ...
... Annular Eclipse – occurs when the moon is farthest from the Earth in its orbit. This makes the moon look smaller, so during the eclipse you see an outer ring of light from the Sun. The eclipse will look like this from Reunion island. ...
The cosmological distance ladder
... Beyond z = 0.1 one needs to know the mean density of the universe and the value of the cosmological constant in order to get the most accurate distances. In fact, it was the discovery that distant galaxies (with redshifts of about z = 0.5) are “too faint” that implied that they were too far away. Th ...
... Beyond z = 0.1 one needs to know the mean density of the universe and the value of the cosmological constant in order to get the most accurate distances. In fact, it was the discovery that distant galaxies (with redshifts of about z = 0.5) are “too faint” that implied that they were too far away. Th ...
Solar Plasmas - Coalition for Plasma Science
... in such a bubble of particles is comparable to a hundred hurricanes. However, it is especially the magnetic energy of such plasma clouds that can upset technology here at earth. The sun goes through an 11-year cycle of activity, usually measured by the number of sunspots. At its peak, the sun often ...
... in such a bubble of particles is comparable to a hundred hurricanes. However, it is especially the magnetic energy of such plasma clouds that can upset technology here at earth. The sun goes through an 11-year cycle of activity, usually measured by the number of sunspots. At its peak, the sun often ...
Great Discoveries in Astronomy and Astrophysics 171.112
... This course will focus on key discoveries in astronomy and astrophysics from the speed of light to the speed of the expanding and now accelerating Universe, from the discovery of Neptune to the modern detection of extrasolar planets, spanning hundreds of years and many orders of magnitude of astrono ...
... This course will focus on key discoveries in astronomy and astrophysics from the speed of light to the speed of the expanding and now accelerating Universe, from the discovery of Neptune to the modern detection of extrasolar planets, spanning hundreds of years and many orders of magnitude of astrono ...
Jupiter
... Jupiter is the most stormiest planet in our solar system with wind that mostly reach 300 miles per hour and one of the strongest, biggest and the longest storm to last is the great red spot in southern hemisphere and it has lasted for more than 300 years and the wind speed over 500 miles per hour . ...
... Jupiter is the most stormiest planet in our solar system with wind that mostly reach 300 miles per hour and one of the strongest, biggest and the longest storm to last is the great red spot in southern hemisphere and it has lasted for more than 300 years and the wind speed over 500 miles per hour . ...
chap18_s05_probs
... = 0.0019 kilograms or 1.9 grams (!) A very small mass. PROBLEM 18-10: To ionize interstellar hydrogen, a photon must have a wavelength smaller than 91.2 nanometers (9.12 10-8 m). Assuming a star had its peak wavelength at this value, what is the surface temperature of this star ? ANSWER: Use Wie ...
... = 0.0019 kilograms or 1.9 grams (!) A very small mass. PROBLEM 18-10: To ionize interstellar hydrogen, a photon must have a wavelength smaller than 91.2 nanometers (9.12 10-8 m). Assuming a star had its peak wavelength at this value, what is the surface temperature of this star ? ANSWER: Use Wie ...
NCEA Level 2 Earth and Space Science (91192) 2015
... begin to collide and form bigger masses. The bigger masses collect more particles due to increasing gravitational field strength. There are two things that affect the formation of planets – temperature and the presence or absence of solar winds. The inner planets have formed in a higher temperature ...
... begin to collide and form bigger masses. The bigger masses collect more particles due to increasing gravitational field strength. There are two things that affect the formation of planets – temperature and the presence or absence of solar winds. The inner planets have formed in a higher temperature ...
NCEA Level 2 Earth and Space Science (91192) 2015
... begin to collide and form bigger masses. The bigger masses collect more particles due to increasing gravitational field strength. There are two things that affect the formation of planets – temperature and the presence or absence of solar winds. The inner planets have formed in a higher temperature ...
... begin to collide and form bigger masses. The bigger masses collect more particles due to increasing gravitational field strength. There are two things that affect the formation of planets – temperature and the presence or absence of solar winds. The inner planets have formed in a higher temperature ...
Some Important Introductory Concepts
... Kepler’s 3rd law, as modified by Newton (coming up), will be a cornerstone of much of this course, because it allows us to estimate masses of astronomical objects (e.g. masses of stars, galaxies, the existence of black holes and the mysterious “dark matter”). Example of use of Kepler’s 3rd law: Th ...
... Kepler’s 3rd law, as modified by Newton (coming up), will be a cornerstone of much of this course, because it allows us to estimate masses of astronomical objects (e.g. masses of stars, galaxies, the existence of black holes and the mysterious “dark matter”). Example of use of Kepler’s 3rd law: Th ...
BBA IInd SEMESTER EXAMINATION 2008-09
... Answer any five of the following (limit your answer in 50 words). (4x5=20) What are orbital parameters required to determine a satellite’s orbit? Explain them. What is meant by look angles? Explain them with reference to a geostationary satellite and earth station. A satellite is moving in a highly ...
... Answer any five of the following (limit your answer in 50 words). (4x5=20) What are orbital parameters required to determine a satellite’s orbit? Explain them. What is meant by look angles? Explain them with reference to a geostationary satellite and earth station. A satellite is moving in a highly ...
Why does Sirius twinkle?
... section: planets don't usually twinkle because they are closer and therefore bigger - they are disks of light instead of faraway points of light. The larger disks of light usually aren't distorted; however if you are looking through especially turbulent areas of our atmosphere, and even sometimes wh ...
... section: planets don't usually twinkle because they are closer and therefore bigger - they are disks of light instead of faraway points of light. The larger disks of light usually aren't distorted; however if you are looking through especially turbulent areas of our atmosphere, and even sometimes wh ...
PLANETARY SCIENCE
... They have deep craters with peaks. These peaks are formed as a result of gravity. The crater collapses downward and inward forming a peak in the center of the basin. Flooded craters are large-diameter craters or have prominent rims that are dark and perfectly flat inside. A mare is a flooded crater. ...
... They have deep craters with peaks. These peaks are formed as a result of gravity. The crater collapses downward and inward forming a peak in the center of the basin. Flooded craters are large-diameter craters or have prominent rims that are dark and perfectly flat inside. A mare is a flooded crater. ...
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.