Planetary Orbit Simulator – Student Guide
... Question 22: Can you describe a general rule which identifies where in the orbit velocity is increasing and where it is decreasing? What is the angle between the velocity and acceleration vectors at these times? ...
... Question 22: Can you describe a general rule which identifies where in the orbit velocity is increasing and where it is decreasing? What is the angle between the velocity and acceleration vectors at these times? ...
Become a Member - Department of Physics and Astronomy
... strong lines of the solar spectrum came from the elements most abundant on Earth. The pre-eminent American physicists at the time, Henry Norris Russell and Henry Rowland, believed that the elemental abundances on Earth and the Sun were substantially identical. Russell wrote [2] “The agreement of the ...
... strong lines of the solar spectrum came from the elements most abundant on Earth. The pre-eminent American physicists at the time, Henry Norris Russell and Henry Rowland, believed that the elemental abundances on Earth and the Sun were substantially identical. Russell wrote [2] “The agreement of the ...
White Dwarfs
... Low luminosity; high temperature => White dwarfs are found in the lower left corner of the Hertzsprung-Russell diagram. ...
... Low luminosity; high temperature => White dwarfs are found in the lower left corner of the Hertzsprung-Russell diagram. ...
cards for each vacation stop - Morehead Planetarium and Science
... CERES (representing the asteroid belt) — talk about a weight-loss diet 0.01 inches or 0.1 mm on our scale; too small to be included in the kit 1. Ceres is the largest object in the asteroid belt between Mars and Jupiter. Asteroids are “space rubble,” rocky remnants left over from the formation of o ...
... CERES (representing the asteroid belt) — talk about a weight-loss diet 0.01 inches or 0.1 mm on our scale; too small to be included in the kit 1. Ceres is the largest object in the asteroid belt between Mars and Jupiter. Asteroids are “space rubble,” rocky remnants left over from the formation of o ...
Teachers` Manual - Amundsen High School
... Small size of Mercury allowed it to lose heat quickly - thus inactive now. Mars too is small, so its interior is probably relatively inactive compared to that of larger Venus and Earth Venus and Earth large enough to have a) retained heat from their formation or b) generated it from radioactiv ...
... Small size of Mercury allowed it to lose heat quickly - thus inactive now. Mars too is small, so its interior is probably relatively inactive compared to that of larger Venus and Earth Venus and Earth large enough to have a) retained heat from their formation or b) generated it from radioactiv ...
Phys133 Sample MidTerm #2 Covers Chs.10
... 4) What happens when a star exhausts its core hydrogen supply? A) It contracts, becoming hotter and brighter. B) Its core contracts, but its outer layers expand and the star becomes bigger but cooler and therefore remains at the same brightness. C) It expands, becoming bigger but dimmer. D) It contr ...
... 4) What happens when a star exhausts its core hydrogen supply? A) It contracts, becoming hotter and brighter. B) Its core contracts, but its outer layers expand and the star becomes bigger but cooler and therefore remains at the same brightness. C) It expands, becoming bigger but dimmer. D) It contr ...
chapter 14 - Astronomy
... 4. A brown dwarf (GL229B) was first seen in 1994. Its mass is between 20 and 50 times that of Jupiter. 5. Brown dwarfs have been discovered orbiting stars, many of them seem to be isolated. Their formation is most likely similar to that of a normal isolated star but they could also be the byproduct ...
... 4. A brown dwarf (GL229B) was first seen in 1994. Its mass is between 20 and 50 times that of Jupiter. 5. Brown dwarfs have been discovered orbiting stars, many of them seem to be isolated. Their formation is most likely similar to that of a normal isolated star but they could also be the byproduct ...
So What All Is Out There, Anyway?
... Surrounding the Sun and 9 planets of our solar system is the Oort cloud—a large collection of billions of comets and tiny pieces of rock and ice. At least, they look tiny to you because you are so large, but some are larger than 100 miles across. This cloud of comets and ice balls surrounds our sol ...
... Surrounding the Sun and 9 planets of our solar system is the Oort cloud—a large collection of billions of comets and tiny pieces of rock and ice. At least, they look tiny to you because you are so large, but some are larger than 100 miles across. This cloud of comets and ice balls surrounds our sol ...
TAP 403-1: Worked examples – Orbital Motion
... longer period of orbit? What is the ratio of orbital radii for the two satellites? What, therefore, is the ratio of the cubes of the orbital radii? What, therefore, is the ratio of the squares of the orbital periods? Finally therefore, what is the ratio of the satellites’ orbital periods? By Kepler’ ...
... longer period of orbit? What is the ratio of orbital radii for the two satellites? What, therefore, is the ratio of the cubes of the orbital radii? What, therefore, is the ratio of the squares of the orbital periods? Finally therefore, what is the ratio of the satellites’ orbital periods? By Kepler’ ...
Supernovae – the biggest bangs since the Big Bang
... If you know the apparent brightness of a star and you know the intrinsic brightness of the star, you can determine how far away the star is. During the 1990's two groups of astronomers endeavored to discover Type Ia supernovae as far away as possible. They found some objects so far away that their ...
... If you know the apparent brightness of a star and you know the intrinsic brightness of the star, you can determine how far away the star is. During the 1990's two groups of astronomers endeavored to discover Type Ia supernovae as far away as possible. They found some objects so far away that their ...
time astro 2014 - Fort Thomas Independent Schools
... sidereal day (23 hours 56 minutes 4.1 seconds). With each night that passes, the Earth falls four minutes short of returning to its starting point with reference to the Sun. So each night, the Earth falls behind by four minutes. ...
... sidereal day (23 hours 56 minutes 4.1 seconds). With each night that passes, the Earth falls four minutes short of returning to its starting point with reference to the Sun. So each night, the Earth falls behind by four minutes. ...
Warm up to the Solar System`s Furnace
... Within the Sun’s rays are vitamins D, K and E that are essential to our health. More importantly the Sun’s rays stimulate photosynthesis so that crops grow for us and for the cows in the pasture that will provide the glass of milk to partner with your cookies. From an aesthetic side photosynthesis a ...
... Within the Sun’s rays are vitamins D, K and E that are essential to our health. More importantly the Sun’s rays stimulate photosynthesis so that crops grow for us and for the cows in the pasture that will provide the glass of milk to partner with your cookies. From an aesthetic side photosynthesis a ...
Birth - Wayne State University Physics and Astronomy
... For main-sequence stars, the most massive (spectral type O) are also the most luminous and have the highest surface-temperature, whereas the least massive (spectral type M or L) are the least luminous and the coolest A galaxy of stars, such as the Milky Way, contains enormous amounts of gas and dust ...
... For main-sequence stars, the most massive (spectral type O) are also the most luminous and have the highest surface-temperature, whereas the least massive (spectral type M or L) are the least luminous and the coolest A galaxy of stars, such as the Milky Way, contains enormous amounts of gas and dust ...
Astronomy Webquest Part 1: Life of Stars: Go to http://www.odec.ca
... In the Table of contents on the top-left hand corner, click on STARS and answer these questions. ...
... In the Table of contents on the top-left hand corner, click on STARS and answer these questions. ...
student instruction and answer sheet
... (1) The star must be a second or third generation star formed from an interstellar cloud that included the necessary heavy elements for life (e.g., carbon, oxygen, etc.). The elements are created during the evolution of first generation, super-massive stars and supernova events that occurred early i ...
... (1) The star must be a second or third generation star formed from an interstellar cloud that included the necessary heavy elements for life (e.g., carbon, oxygen, etc.). The elements are created during the evolution of first generation, super-massive stars and supernova events that occurred early i ...
3. COMMENTS ON KEPLER`S NEW ASTRONOMY
... A third step, which included the two previous steps, was required to complete the epistemological conditions validating this Pythagorean principle of proportionality. This third step represented the boundary condition, the closure of the entire process. Imagine that, from outside of the Celestial Sp ...
... A third step, which included the two previous steps, was required to complete the epistemological conditions validating this Pythagorean principle of proportionality. This third step represented the boundary condition, the closure of the entire process. Imagine that, from outside of the Celestial Sp ...
Lives of stars HR
... of a pulsar, a rapidly rotating stellar remnant which can appear to blink hundreds or thousands of times per second. The most famous pulsar is in the Crab nebula ...
... of a pulsar, a rapidly rotating stellar remnant which can appear to blink hundreds or thousands of times per second. The most famous pulsar is in the Crab nebula ...
Determining the Origin of Inner Planetary System Debris Orbiting the
... Kenyon & Bromley (2006), in particular their simulation of the growth of terrestrial planets in an annular ring spanning 0.84-1.16 AU around a Solar-mass star. This ring is seeded with a parent planetesimal population having a specified surface density distribution Σ0 . It is then evolved using the h ...
... Kenyon & Bromley (2006), in particular their simulation of the growth of terrestrial planets in an annular ring spanning 0.84-1.16 AU around a Solar-mass star. This ring is seeded with a parent planetesimal population having a specified surface density distribution Σ0 . It is then evolved using the h ...
Assignment 8 - utoledo.edu
... a. falls inward very slowly, taking billions of years to get really compressed b. makes a planetary nebula, which gently moves outward from the center c. is vaporized by the incredible heat of the dying star and evaporates d. explodes outward as a supernova e. continues regular fusion and returns to ...
... a. falls inward very slowly, taking billions of years to get really compressed b. makes a planetary nebula, which gently moves outward from the center c. is vaporized by the incredible heat of the dying star and evaporates d. explodes outward as a supernova e. continues regular fusion and returns to ...
PDF
... from a distance makes the earth look blue, white, and green. The earth is shaped like a sphere. (planet for kids.com).I The earth’s size is 40,075. the space of the earth is.The earth is the third planet from our sun in the solar system (www.ask.com). People live on earth. There is grass there, grav ...
... from a distance makes the earth look blue, white, and green. The earth is shaped like a sphere. (planet for kids.com).I The earth’s size is 40,075. the space of the earth is.The earth is the third planet from our sun in the solar system (www.ask.com). People live on earth. There is grass there, grav ...
The Stars of Namaqualand
... his opinion that the earth is not the center of the universe, he was criticized by the church and accused as blasphemous. His book was later banned from the church. The next important discover made Ole Roemer (1644 – 1710), who calculated the speed of light. He used Keppler`s laws to observe the ec ...
... his opinion that the earth is not the center of the universe, he was criticized by the church and accused as blasphemous. His book was later banned from the church. The next important discover made Ole Roemer (1644 – 1710), who calculated the speed of light. He used Keppler`s laws to observe the ec ...
Transits of planets: mean densities
... The main reason for the di↵erent mean densities are the di↵erent compositions, but also the di↵erent structure. As a very rough statement one can say, that high density objects ⇢¯ > 3.0 g cm 3 are composed of rocks and iron, intermediate density objects ⇢¯ ⇡ 2.0 g cm 3 contain in addition a substant ...
... The main reason for the di↵erent mean densities are the di↵erent compositions, but also the di↵erent structure. As a very rough statement one can say, that high density objects ⇢¯ > 3.0 g cm 3 are composed of rocks and iron, intermediate density objects ⇢¯ ⇡ 2.0 g cm 3 contain in addition a substant ...
Astro 4 Practice Test 1
... d. Probably not, because the Moon will probably pass a bit above or below the Sun (as seen in the sky) a month from now. 13. When we look at the sky with the unaided eye, what looks different about the planets, as compared to the stars? a. The planets seem to move relative to the stars. b. The plane ...
... d. Probably not, because the Moon will probably pass a bit above or below the Sun (as seen in the sky) a month from now. 13. When we look at the sky with the unaided eye, what looks different about the planets, as compared to the stars? a. The planets seem to move relative to the stars. b. The plane ...
ptolemy day 21 - Arts of Liberty
... Jupiter, Saturn, can be any angular distance from the sun. This is the big distinction between inner and outer planets. (The cause of this, in truth, is clear. Our own orbit encompasses those of Venus and Mercury, while it is encompassed by those of Mars, Jupiter, and Saturn. This is another sneak p ...
... Jupiter, Saturn, can be any angular distance from the sun. This is the big distinction between inner and outer planets. (The cause of this, in truth, is clear. Our own orbit encompasses those of Venus and Mercury, while it is encompassed by those of Mars, Jupiter, and Saturn. This is another sneak p ...
Spectroscopy, the Doppler Shift and Masses of Binary Stars
... The stars on the left are separated by 2.3 about 140 AU; those on the right by 2.6 . The two pairs are separated by about 208 (13,000 AU separation, 0.16 ly between the two pairs, all about 162 ly distant). Each pair would be about as bright as the quarter moon viewed from the other. ...
... The stars on the left are separated by 2.3 about 140 AU; those on the right by 2.6 . The two pairs are separated by about 208 (13,000 AU separation, 0.16 ly between the two pairs, all about 162 ly distant). Each pair would be about as bright as the quarter moon viewed from the other. ...
Planetary habitability
Planetary habitability is the measure of a planet's or a natural satellite's potential to develop and sustain life. Life may develop directly on a planet or satellite or be transferred to it from another body, a theoretical process known as panspermia. As the existence of life beyond Earth is unknown, planetary habitability is largely an extrapolation of conditions on Earth and the characteristics of the Sun and Solar System which appear favourable to life's flourishing—in particular those factors that have sustained complex, multicellular organisms and not just simpler, unicellular creatures. Research and theory in this regard is a component of planetary science and the emerging discipline of astrobiology.An absolute requirement for life is an energy source, and the notion of planetary habitability implies that many other geophysical, geochemical, and astrophysical criteria must be met before an astronomical body can support life. In its astrobiology roadmap, NASA has defined the principal habitability criteria as ""extended regions of liquid water, conditions favourable for the assembly of complex organic molecules, and energy sources to sustain metabolism.""In determining the habitability potential of a body, studies focus on its bulk composition, orbital properties, atmosphere, and potential chemical interactions. Stellar characteristics of importance include mass and luminosity, stable variability, and high metallicity. Rocky, terrestrial-type planets and moons with the potential for Earth-like chemistry are a primary focus of astrobiological research, although more speculative habitability theories occasionally examine alternative biochemistries and other types of astronomical bodies.The idea that planets beyond Earth might host life is an ancient one, though historically it was framed by philosophy as much as physical science. The late 20th century saw two breakthroughs in the field. The observation and robotic spacecraft exploration of other planets and moons within the Solar System has provided critical information on defining habitability criteria and allowed for substantial geophysical comparisons between the Earth and other bodies. The discovery of extrasolar planets, beginning in the early 1990s and accelerating thereafter, has provided further information for the study of possible extraterrestrial life. These findings confirm that the Sun is not unique among stars in hosting planets and expands the habitability research horizon beyond the Solar System.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. 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. On 4 November 2013, astronomers reported, based on Kepler space mission data, that there could be as many as 40 billion Earth-sized planets orbiting in the habitable zones of Sun-like stars and red dwarfs within the Milky Way. 11 billion of these estimated planets may be orbiting Sun-like stars. The nearest such planet may be 12 light-years away, according to the scientists.