Meteorites: Fragments of Asteroids - Beck-Shop
... Gradually, as more asteroids were discovered astronomers began to realize that they were simply bodies of subplanetary mass and size which, in their minds’ eyes gave asteroids a minor status among the Solar System’s much more massive planets. By the late nineteenth century many astronomers referred ...
... Gradually, as more asteroids were discovered astronomers began to realize that they were simply bodies of subplanetary mass and size which, in their minds’ eyes gave asteroids a minor status among the Solar System’s much more massive planets. By the late nineteenth century many astronomers referred ...
Meteorites: Fragments of Asteroids
... Gradually, as more asteroids were discovered astronomers began to realize that they were simply bodies of subplanetary mass and size which, in their minds’ eyes gave asteroids a minor status among the Solar System’s much more massive planets. By the late nineteenth century many astronomers referred ...
... Gradually, as more asteroids were discovered astronomers began to realize that they were simply bodies of subplanetary mass and size which, in their minds’ eyes gave asteroids a minor status among the Solar System’s much more massive planets. By the late nineteenth century many astronomers referred ...
TOPS: Toward Other Planetary
... The observation that stars seem frequently to form in similar disks suggests that stars throughout the universe are commonly accompanied by planets. The gross characteristics of our planetary system appear to have resulted more or less inevitably from conditions associated with the formation of our ...
... The observation that stars seem frequently to form in similar disks suggests that stars throughout the universe are commonly accompanied by planets. The gross characteristics of our planetary system appear to have resulted more or less inevitably from conditions associated with the formation of our ...
Senior thesis - University of Texas Astronomy Home Page
... for planets outside our solar system both helps constrain our current theories regarding solar system formation as well as raises possibilities for the evolution of alien life. Astronomers use both direct and indirect methods of finding exoplanets. Indirect methods do not detect planets explicitly, ...
... for planets outside our solar system both helps constrain our current theories regarding solar system formation as well as raises possibilities for the evolution of alien life. Astronomers use both direct and indirect methods of finding exoplanets. Indirect methods do not detect planets explicitly, ...
Spring 2012 - Union College
... celestial poles. This is a useful because it defines the highest point of a star (the largest altitude) during its trek from East to West. Consider the following: As the Earth rotates, you will see the stars move across the sky from East to West. Some of the stars (the stars that are at the same dec ...
... celestial poles. This is a useful because it defines the highest point of a star (the largest altitude) during its trek from East to West. Consider the following: As the Earth rotates, you will see the stars move across the sky from East to West. Some of the stars (the stars that are at the same dec ...
Solar system formation by accretion has no observational evidence
... there had been no nebula. On the other hand, observations of debris formation are common in astronomy, especially in cases of stellar instability discussed below. The cosmos seems to be undergoing dissolution rather than evolving. This is why theorists have been unable to explain how the solar nebul ...
... there had been no nebula. On the other hand, observations of debris formation are common in astronomy, especially in cases of stellar instability discussed below. The cosmos seems to be undergoing dissolution rather than evolving. This is why theorists have been unable to explain how the solar nebul ...
A History of Astronomy, Astrophysics and Cosmology
... The prevailing picture of the structure of the physical Universe was based upon the thinking of Aristotle who held that the sphere is the most perfect solid figure in that, when rotated about any diameter, it remains unchanged. The Universe was composed of layer upon layer of perfect spheres and mot ...
... The prevailing picture of the structure of the physical Universe was based upon the thinking of Aristotle who held that the sphere is the most perfect solid figure in that, when rotated about any diameter, it remains unchanged. The Universe was composed of layer upon layer of perfect spheres and mot ...
November, 2015 - The Baton Rouge Astronomical Society
... One big early surprise (1995) was the ground-based discovery of “hot Jupiters:” gas giants the size of Jupiter in orbits around their parent stars much closer than Venus—or even Mercury—is to the Sun. How does something that massive form so close to a parent star? Would there have been enough materi ...
... One big early surprise (1995) was the ground-based discovery of “hot Jupiters:” gas giants the size of Jupiter in orbits around their parent stars much closer than Venus—or even Mercury—is to the Sun. How does something that massive form so close to a parent star? Would there have been enough materi ...
Electronic version of lab manual 1-6 ()
... Exponents are an economical way of writing the repeated multiplication of a factor: a a a = a3 Here we represent repeated multiplication by using a power (i.e. an exponent) of 3, which indicates that you need to use “a” as a factor three times. For example, if a = 2, the above equation above would g ...
... Exponents are an economical way of writing the repeated multiplication of a factor: a a a = a3 Here we represent repeated multiplication by using a power (i.e. an exponent) of 3, which indicates that you need to use “a” as a factor three times. For example, if a = 2, the above equation above would g ...
Stargazer - Everett Astronomical Society
... EAS Club Telescope Borrowing Being a member also allows you the use of the club's telescopes, including an award winning 10 inch Dobsonian mount reflector, a second 10” dob, or and 8” Dobsonian. Contact Jim Bielaga (425) 337-4384 to borrow a telescope. 10% Discount on Purchases at ‘Aurora Astro Prod ...
... EAS Club Telescope Borrowing Being a member also allows you the use of the club's telescopes, including an award winning 10 inch Dobsonian mount reflector, a second 10” dob, or and 8” Dobsonian. Contact Jim Bielaga (425) 337-4384 to borrow a telescope. 10% Discount on Purchases at ‘Aurora Astro Prod ...
A magnetic communication scenario for hot Jupiters
... order to fit the observations. The only output is the stellar wind solution, i.e. density, magnetic field and velocity as a function of the distance from the stellar surface, from which all other quantities are computed. Whereas M , R , P , a, and Porb can be taken more or less from observations, ...
... order to fit the observations. The only output is the stellar wind solution, i.e. density, magnetic field and velocity as a function of the distance from the stellar surface, from which all other quantities are computed. Whereas M , R , P , a, and Porb can be taken more or less from observations, ...
OUR SOLAR SYSTEM
... of how they formed, there may or may not be a solid core roughly the size of Earth. NASA’s Juno orbiter, scheduled to arrive at Jupiter in July 2016, will measure the planet’s gravitational field with sufficient accuracy to determine if a core exists. A pair of slightly different giants lies farther ...
... of how they formed, there may or may not be a solid core roughly the size of Earth. NASA’s Juno orbiter, scheduled to arrive at Jupiter in July 2016, will measure the planet’s gravitational field with sufficient accuracy to determine if a core exists. A pair of slightly different giants lies farther ...
The Astrobiology Primer - Mary Ann Liebert, Inc. publishers
... the interdisciplinary field of astrobiology. The field incorporates many diverse research endeavors, but it is our hope that this slim volume will present the reader with all he or she needs to know to become involved and to understand, at least at a fundamental level, the state of the art. Each sec ...
... the interdisciplinary field of astrobiology. The field incorporates many diverse research endeavors, but it is our hope that this slim volume will present the reader with all he or she needs to know to become involved and to understand, at least at a fundamental level, the state of the art. Each sec ...
PowerPoint
... There was a problem. The data was so good that it could not be fit with the heliocentric model if only circles were used. Then, he began to work with the ellipse. Sept 10, 2003 ...
... There was a problem. The data was so good that it could not be fit with the heliocentric model if only circles were used. Then, he began to work with the ellipse. Sept 10, 2003 ...
Red Dwarf Stars: Ages, Rotation, Magnetic
... pre-main sequence stars and close binaries in the sample. Also in this study, we exclude spectral types later than ∼M7 because they appear to have Age-Rotation-Activity relations quite different to earlier spectral types. From a limited sample of M7–9 V stars, it appears that they do not undergo mag ...
... pre-main sequence stars and close binaries in the sample. Also in this study, we exclude spectral types later than ∼M7 because they appear to have Age-Rotation-Activity relations quite different to earlier spectral types. From a limited sample of M7–9 V stars, it appears that they do not undergo mag ...
Enhanced lithium depletion in Sun-like stars with orbiting planets.
... cluster18 indicates a much older age for our stars. We find no correlation between Li and the activity index in both samples (Fig 2a). This suggests that age is not the main parameter governing Li depletion in our targets. It is known19 that chromospheric activity correlates with stellar rotation (v ...
... cluster18 indicates a much older age for our stars. We find no correlation between Li and the activity index in both samples (Fig 2a). This suggests that age is not the main parameter governing Li depletion in our targets. It is known19 that chromospheric activity correlates with stellar rotation (v ...
Assessing the massive young Sun hypothesis to solve the warm
... The Sun currently loses a small amount of mass due to coronal mass ejections (∼ 10−15 M yr−1 ), the solar wind (∼ 2 − 3 × 10−14 M yr−1 ) and radiation (∼ 7 × 10−14 M yr−1 ), the latter due to conversion of matter into energy through thermonuclear fusion at the core (Feldman et al. 1977; Shu 1982) ...
... The Sun currently loses a small amount of mass due to coronal mass ejections (∼ 10−15 M yr−1 ), the solar wind (∼ 2 − 3 × 10−14 M yr−1 ) and radiation (∼ 7 × 10−14 M yr−1 ), the latter due to conversion of matter into energy through thermonuclear fusion at the core (Feldman et al. 1977; Shu 1982) ...
Unit 1 test review and answer key 16
... A “shooting star” is a meteor that moves at high speed. (This term applies to meteors that burn up when entering Earth’s atmosphere at high speed.) 20. ANS: F Eris is the largest dwarf planet. 21. ANS: F A dwarf planet does not have enough gravity to clear its orbit of debris left over from the for ...
... A “shooting star” is a meteor that moves at high speed. (This term applies to meteors that burn up when entering Earth’s atmosphere at high speed.) 20. ANS: F Eris is the largest dwarf planet. 21. ANS: F A dwarf planet does not have enough gravity to clear its orbit of debris left over from the for ...
Investigate Planets, Stars, Galaxies, and the Universe
... away, orbiting at first base. Jupiter is now a one-inch marble 450 feet away. It is orbiting just beyond Our star, the Sun, is about 93,000,000 miles from the fence in center field. And the Earth. It may be an average-sized star, but more dwarf planet Pluto? It’s just a than a million Earths can fit ...
... away, orbiting at first base. Jupiter is now a one-inch marble 450 feet away. It is orbiting just beyond Our star, the Sun, is about 93,000,000 miles from the fence in center field. And the Earth. It may be an average-sized star, but more dwarf planet Pluto? It’s just a than a million Earths can fit ...
Spin-driven tidal pumping: Tidally driven changes in planetary spin
... phase lag can drive the pumping. These results were surprising, both because tides are generally expected to damp eccentricities and because of the large magnitude of the computed pumping effect. Here we demonstrate that similar results can be obtained with an analytical solution based on lower-orde ...
... phase lag can drive the pumping. These results were surprising, both because tides are generally expected to damp eccentricities and because of the large magnitude of the computed pumping effect. Here we demonstrate that similar results can be obtained with an analytical solution based on lower-orde ...
Jupiter Press Kit - New Horizons - The Johns Hopkins University
... New Horizons will help us understand worlds at the edge of our solar system by making the first reconnaissance of Pluto, its large moon, Charon, and its two small moons, Nix and Hydra. Pluto — which makes up a “double planet” with Charon — is the last of the original nine planets in our solar system ...
... New Horizons will help us understand worlds at the edge of our solar system by making the first reconnaissance of Pluto, its large moon, Charon, and its two small moons, Nix and Hydra. Pluto — which makes up a “double planet” with Charon — is the last of the original nine planets in our solar system ...
A cloaking device for transiting planets
... their presence through transits by constructing large, thin artificial structures, such as a triangular mask, in a tight orbit around their host star. The transit profiles of such objects would display residuals to the assumed spherical planet model, of the order of 10−4 . A related concept using mi ...
... their presence through transits by constructing large, thin artificial structures, such as a triangular mask, in a tight orbit around their host star. The transit profiles of such objects would display residuals to the assumed spherical planet model, of the order of 10−4 . A related concept using mi ...
The escape of planetary atmospheres
... by hydrogen. Fast hydrodynamic loss may explain why “hot Jupiter” planets are not found really close to their parent stars. For orbits less than about 3 million kilometers around a Sun-like star, hydrodynamic escape could remove the atmosphere of a Jupiter-like planet within a few billion years, lea ...
... by hydrogen. Fast hydrodynamic loss may explain why “hot Jupiter” planets are not found really close to their parent stars. For orbits less than about 3 million kilometers around a Sun-like star, hydrodynamic escape could remove the atmosphere of a Jupiter-like planet within a few billion years, lea ...
JUPITER AND SPEED OF LIGHT
... Latitude, the angular distance north or south of the equator, is easy to determine. The angular altitude of the north celestial pole is equal to a person’s latitude. Polaris is close to the north celestial pole so for accuracy to a degree, Polaris’ altitude gives the latitude. Figure 6: Latitude and ...
... Latitude, the angular distance north or south of the equator, is easy to determine. The angular altitude of the north celestial pole is equal to a person’s latitude. Polaris is close to the north celestial pole so for accuracy to a degree, Polaris’ altitude gives the latitude. Figure 6: Latitude and ...
- ANU Repository
... distribution and period distribution of planets. Unlike previous approaches, MIMC analyses planets as discrete values or distributions of values that can include non-trivial priors on parameters. Silburt et al. (2015) pointed out that because of detection bias, errors in radii of small planets will ...
... distribution and period distribution of planets. Unlike previous approaches, MIMC analyses planets as discrete values or distributions of values that can include non-trivial priors on parameters. Silburt et al. (2015) pointed out that because of detection bias, errors in radii of small planets will ...
IAU definition of planet
The definition of planet set in Prague in 2006 by the International Astronomical Union (IAU) states that, in the Solar System, a planet is a celestial body which: is in orbit around the Sun, has sufficient mass to assume hydrostatic equilibrium (a nearly round shape), and has ""cleared the neighborhood"" around its orbit.A non-satellite body fulfilling only the first two of these criteria is classified as a ""dwarf planet"". According to the IAU, ""planets and dwarf planets are two distinct classes of objects"". A non-satellite body fulfilling only the first criterion is termed a ""small Solar System body"" (SSSB). Initial drafts planned to include dwarf planets as a subcategory of planets, but because this could potentially have led to the addition of several dozens of planets into the Solar System, this draft was eventually dropped. The definition was a controversial one and has drawn both support and criticism from different astronomers, but has remained in use.According to this definition, there are eight planets in the Solar System. The definition distinguishes planets from smaller bodies and is not useful outside the Solar System, where smaller bodies cannot be found yet. Extrasolar planets, or exoplanets, are covered separately under a complementary 2003 draft guideline for the definition of planets, which distinguishes them from dwarf stars, which are larger.