Short-Period Comets
... Short-period comets from the ___________________ come from _________________ between objects. Short-period comets take less than _________ years to orbit the sun. Short-period comets have a _____________ life span as they lose layers each time they pass the ____________. ...
... Short-period comets from the ___________________ come from _________________ between objects. Short-period comets take less than _________ years to orbit the sun. Short-period comets have a _____________ life span as they lose layers each time they pass the ____________. ...
Phase light curves for extrasolar Jupiter and Saturn
... DTM, Carnegie Institute at Washington, DC , USA ABSTRACT ...
... DTM, Carnegie Institute at Washington, DC , USA ABSTRACT ...
Giant Planet Atmospheres and Spectra
... tight and the planet can not be separately imaged. In the latter case, the planet’s light can be a non-trivial fraction of the total, particularly in the infrared. When transiting, such hot Jupiter systems provide an unprecedented opportunty to measure the planet’s emissions by the difference in the ...
... tight and the planet can not be separately imaged. In the latter case, the planet’s light can be a non-trivial fraction of the total, particularly in the infrared. When transiting, such hot Jupiter systems provide an unprecedented opportunty to measure the planet’s emissions by the difference in the ...
New Indivisible Planetary Science Paradigm J. Marvin Herndon
... inner core. The trace element uranium precipitated, presumably as US, and through one or more steps settled at the center of the Earth where it engaged in self-sustaining nuclear fission chain reactions [5, 20, 37-40]. The gaseous portion of primordial Solar System matter, as is the Sun’s photospher ...
... inner core. The trace element uranium precipitated, presumably as US, and through one or more steps settled at the center of the Earth where it engaged in self-sustaining nuclear fission chain reactions [5, 20, 37-40]. The gaseous portion of primordial Solar System matter, as is the Sun’s photospher ...
Smallest Kuiper Belt Object Ever Detected
... The tiny body appears to be just over a half mile—or approximately 1 kilometer—across and is located 4.2 billion miles away. The object is so small and distant that it is 100 times dimmer in reflected sunlight than what Hubble can see directly. In fact, the smallest KBO previously seen in reflected ...
... The tiny body appears to be just over a half mile—or approximately 1 kilometer—across and is located 4.2 billion miles away. The object is so small and distant that it is 100 times dimmer in reflected sunlight than what Hubble can see directly. In fact, the smallest KBO previously seen in reflected ...
Procedurally Generating an Artificial Galaxy
... common. In the same way that you can choose how many times to run the seeds through the middle-square algorithm, the linear congruential generator can be configured in different ways with different results, some of which are better than others. It is slightly more complicated than the middle-square ...
... common. In the same way that you can choose how many times to run the seeds through the middle-square algorithm, the linear congruential generator can be configured in different ways with different results, some of which are better than others. It is slightly more complicated than the middle-square ...
1 A Re-appraisal of the Habitability of Planets Around M Dwarf Stars
... Stable, hydrogen-burning, M dwarf stars comprise about 75% of all stars in the Galaxy. They are extremely long-lived and because they are much smaller in mass than the Sun (between 0.5 and 0.08 MSun), their temperature and stellar luminosity are low and peaked in the red. We have re-examined what is ...
... Stable, hydrogen-burning, M dwarf stars comprise about 75% of all stars in the Galaxy. They are extremely long-lived and because they are much smaller in mass than the Sun (between 0.5 and 0.08 MSun), their temperature and stellar luminosity are low and peaked in the red. We have re-examined what is ...
BMAC Newsletter 201105
... whatever you would be displaying July 30. It starts around 5-6 p.m. then so there's no rush on Saturday. Bring a dish/snack to share (all of you) and a chair. There will also be a Speaking of which, please think public star viewing held that evening about what you would like to bring to demonstrate ...
... whatever you would be displaying July 30. It starts around 5-6 p.m. then so there's no rush on Saturday. Bring a dish/snack to share (all of you) and a chair. There will also be a Speaking of which, please think public star viewing held that evening about what you would like to bring to demonstrate ...
The search of habitable Earth-like exoplanets
... originally defined habitable zone definition is valid → see Earth! Class II, III and IV habitats should also populate G-type and F, K, and M-type stars Lower mass stars should have less class I habitable planets but class II, class III and class IV habitability-types may be common like on G-star ...
... originally defined habitable zone definition is valid → see Earth! Class II, III and IV habitats should also populate G-type and F, K, and M-type stars Lower mass stars should have less class I habitable planets but class II, class III and class IV habitability-types may be common like on G-star ...
ppt format
... are 2 objects orbiting their common center of mass • Binaries are of extreme importance as the separation and speeds of objects are related to their mass – how heavy they are • Mass is one of the most fundamental and important numbers for any object ...
... are 2 objects orbiting their common center of mass • Binaries are of extreme importance as the separation and speeds of objects are related to their mass – how heavy they are • Mass is one of the most fundamental and important numbers for any object ...
Binary Asteroids
... are 2 objects orbiting their common center of mass • Binaries are of extreme importance as the separation and speeds of objects are related to their mass – how heavy they are • Mass is one of the most fundamental and important numbers for any object ...
... are 2 objects orbiting their common center of mass • Binaries are of extreme importance as the separation and speeds of objects are related to their mass – how heavy they are • Mass is one of the most fundamental and important numbers for any object ...
1. Chapter 10
... days at a time. We have learned through experiments and observations that the stars are like our Sun, giving off light and heat, but are very far away. Thousands of years ago, what must people have thought when they looked up at the sky? Many people in early civilizations were farmers. They needed t ...
... days at a time. We have learned through experiments and observations that the stars are like our Sun, giving off light and heat, but are very far away. Thousands of years ago, what must people have thought when they looked up at the sky? Many people in early civilizations were farmers. They needed t ...
The Solar System
... The IAU therefore resolves that planets and other bodies in our Solar System, except satellites be defined into three distinct categories in the following way: (1) A "planet“ 1 is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its selfgravity to overcome rigid body ...
... The IAU therefore resolves that planets and other bodies in our Solar System, except satellites be defined into three distinct categories in the following way: (1) A "planet“ 1 is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its selfgravity to overcome rigid body ...
Possible climates on terrestrial exoplanets
... are expected to be close to the stellar ones, except for some elements that can be trapped in condensing molecules. While these discs may be quickly dispersed by stellar radiation and winds (on timescales of the order of 3 Myr [6]), planetary embryos more massive than approximately 0.1 MEarth can re ...
... are expected to be close to the stellar ones, except for some elements that can be trapped in condensing molecules. While these discs may be quickly dispersed by stellar radiation and winds (on timescales of the order of 3 Myr [6]), planetary embryos more massive than approximately 0.1 MEarth can re ...
Unpublished draft available in format
... etc.; by spectral type - blue, white, etc.; by other radiation phenomena - variable, quasar, etc.). if any astronomer users of the schedule think that a more helpful citation order could be achieved than that in this draft, we would welcome their comment. ...
... etc.; by spectral type - blue, white, etc.; by other radiation phenomena - variable, quasar, etc.). if any astronomer users of the schedule think that a more helpful citation order could be achieved than that in this draft, we would welcome their comment. ...
Full PDF - Royal Society Publishing
... are expected to be close to the stellar ones, except for some elements that can be trapped in condensing molecules. While these discs may be quickly dispersed by stellar radiation and winds (on timescales of the order of 3 Myr [6]), planetary embryos more massive than approximately 0.1 MEarth can re ...
... are expected to be close to the stellar ones, except for some elements that can be trapped in condensing molecules. While these discs may be quickly dispersed by stellar radiation and winds (on timescales of the order of 3 Myr [6]), planetary embryos more massive than approximately 0.1 MEarth can re ...
PSCI1030-CHAP016-The Solar System
... system must account for its present form • According to our best measurements, our solar system has been in its present state for about 4.5 billion years • A valid theory for solar system formation – must be able to explain a number of major properties of our solar system Copyright © Houghton Miffli ...
... system must account for its present form • According to our best measurements, our solar system has been in its present state for about 4.5 billion years • A valid theory for solar system formation – must be able to explain a number of major properties of our solar system Copyright © Houghton Miffli ...
Inti didn`t form in the X wind (and neither did most CAIs)
... Steady-state alpha decretion disk, like steady-state alpha accretion disk, experiences radial diffusion on timescales ~ (r/H)2 ()-1 In accretion disks, outward radial diffusion still occurs, on same timescale as net flow of gas inward: crystalline silicates (Gail 2001) or CAIs (Cuzzi et al. 2003). ...
... Steady-state alpha decretion disk, like steady-state alpha accretion disk, experiences radial diffusion on timescales ~ (r/H)2 ()-1 In accretion disks, outward radial diffusion still occurs, on same timescale as net flow of gas inward: crystalline silicates (Gail 2001) or CAIs (Cuzzi et al. 2003). ...
Other Planetary Systems
... little more than a decade ago, all of planetary science was based solely on the study of our own solar system. Then, beginning in 1995, a dramatic change occurred as scientists began to detect planets around other stars. More than 250 such planets were already known by 2007, and new discoveries are ...
... little more than a decade ago, all of planetary science was based solely on the study of our own solar system. Then, beginning in 1995, a dramatic change occurred as scientists began to detect planets around other stars. More than 250 such planets were already known by 2007, and new discoveries are ...
Extrasolar Planet Studies:The Italian Contribution
... Giant Planets, unique science • Young self-luminous gaseous planets in star forming regions or young associations – EPICS can achieve good resolution even for star forming regions at ~100pc, young planets at >3 AU can be detected, very important observation to understand planet formation • Mature gi ...
... Giant Planets, unique science • Young self-luminous gaseous planets in star forming regions or young associations – EPICS can achieve good resolution even for star forming regions at ~100pc, young planets at >3 AU can be detected, very important observation to understand planet formation • Mature gi ...
Astronomy Activities/Demonstrations
... amount of force that it rebounds. As the core contracts, all the outer atmospheric layers are also contracting and following the core. They are less dense and take a little longer to contract than the core. When the core (basketball) rebounds, the atmospheric layers (tennis ball) are still in-fallin ...
... amount of force that it rebounds. As the core contracts, all the outer atmospheric layers are also contracting and following the core. They are less dense and take a little longer to contract than the core. When the core (basketball) rebounds, the atmospheric layers (tennis ball) are still in-fallin ...
Estimating Eccentricity of Planetary and Stellar Cores
... a concentric core provoked scientists to develop a belief that the core is composed from some ferromagnetic alloy. However, this belief cannot explain magnetic pole shifts followed by long periods of a fairly stable magnetic field. An electrically charged eccentric core seems to offer a simple and e ...
... a concentric core provoked scientists to develop a belief that the core is composed from some ferromagnetic alloy. However, this belief cannot explain magnetic pole shifts followed by long periods of a fairly stable magnetic field. An electrically charged eccentric core seems to offer a simple and e ...
New Light on the Solar System
... On the scale of the Milky Way, 100,000 light-years across, our solar system can seem like a puny rut in which to be stuck. Having glimpsed countless exotic stars and galaxies, surely the human imagination will rapidly weary of just one yellow sun, eight or nine planets (depending on your feelings ab ...
... On the scale of the Milky Way, 100,000 light-years across, our solar system can seem like a puny rut in which to be stuck. Having glimpsed countless exotic stars and galaxies, surely the human imagination will rapidly weary of just one yellow sun, eight or nine planets (depending on your feelings ab ...
4-3 Astronomy
... Previous/future knowledge: Students in 1st grade (1-3.4) illustrated the changes in the Moon’s appearance showing a pattern over time. The concept of tides and the fact that the Moon affects ocean tides is new to this grade. In the 8th grade (8-4.4) students will study many of the motions of Earth a ...
... Previous/future knowledge: Students in 1st grade (1-3.4) illustrated the changes in the Moon’s appearance showing a pattern over time. The concept of tides and the fact that the Moon affects ocean tides is new to this grade. In the 8th grade (8-4.4) students will study many of the motions of Earth a ...
Ben R. Oppenheimer1,2 and Sasha Hinkley1,2
... It is critical to note here, and we will discuss this in more detail in §2.1.5, that all of this information, representing a huge expansion in human understanding of planets since the early 1990s, comes from heavily biased surveys, and all of these numbers should be considered rough initial attempts ...
... It is critical to note here, and we will discuss this in more detail in §2.1.5, that all of this information, representing a huge expansion in human understanding of planets since the early 1990s, comes from heavily biased surveys, and all of these numbers should be considered rough initial attempts ...
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.