Beyond Pluto: Exploring the outer limits of the solar - e
... though it was quite close, did not show a detectable disc when viewed through a telescope. This suggested that it was smaller than any of the other known planets. Three similar objects, Pallas, Juno and Vesta, were found in 1802, 1804 and 1807 respectively. All appearing as slowmoving points of ligh ...
... though it was quite close, did not show a detectable disc when viewed through a telescope. This suggested that it was smaller than any of the other known planets. Three similar objects, Pallas, Juno and Vesta, were found in 1802, 1804 and 1807 respectively. All appearing as slowmoving points of ligh ...
Giuseppe Piazzi and the Discovery of Ceres
... March 20 and Oriani on April 5. On February 27, Lalande, having read in the Journal de Paris that a comet had been discovered in Palermo, wrote to Piazzi asking for his observations. The letter arrived at the beginning of April and Piazzi, who had not yet received any reaction either from Bode or Or ...
... March 20 and Oriani on April 5. On February 27, Lalande, having read in the Journal de Paris that a comet had been discovered in Palermo, wrote to Piazzi asking for his observations. The letter arrived at the beginning of April and Piazzi, who had not yet received any reaction either from Bode or Or ...
Evidence for a Distant Giant Planet in the Solar System
... belt exhibit an unexpected clustering in their respective arguments of perihelion. While several hypotheses have been put forward to explain this alignment, to date, a theoretical model that can successfully account for the observations remains elusive. In this work we show that the orbits of distan ...
... belt exhibit an unexpected clustering in their respective arguments of perihelion. While several hypotheses have been put forward to explain this alignment, to date, a theoretical model that can successfully account for the observations remains elusive. In this work we show that the orbits of distan ...
Evidence for a Distant Giant Planet in the Solar System
... belt exhibit an unexpected clustering in their respective arguments of perihelion. While several hypotheses have been put forward to explain this alignment, to date, a theoretical model that can successfully account for the observations remains elusive. In this work we show that the orbits of distan ...
... belt exhibit an unexpected clustering in their respective arguments of perihelion. While several hypotheses have been put forward to explain this alignment, to date, a theoretical model that can successfully account for the observations remains elusive. In this work we show that the orbits of distan ...
Coming To A Planet Near You
... Demonstration #1: Planetary Rotation................................................................................ 41-43 ...
... Demonstration #1: Planetary Rotation................................................................................ 41-43 ...
Solar System evolution from compositional mapping of the
... was and continues to be in a state of evolution and flux. Indeed, dynamical models have been leading us step-by-step to interpret the asteroid belt as a melting pot of bodies arriving from diverse backgrounds. Dynamical models have come a long way, but they have yet to explain the dichotomy between ...
... was and continues to be in a state of evolution and flux. Indeed, dynamical models have been leading us step-by-step to interpret the asteroid belt as a melting pot of bodies arriving from diverse backgrounds. Dynamical models have come a long way, but they have yet to explain the dichotomy between ...
Unit 1 test review and answer key 16
... telescopes can reveal characteristics of celestial objects that optical telescopes could not do. Radio telescopes might be able to pick up radio signals from other planets. 26. ANS: F Only one small part of the electromagnetic spectrum consists of the energy that forms visible light. 27. ANS: F A ga ...
... telescopes can reveal characteristics of celestial objects that optical telescopes could not do. Radio telescopes might be able to pick up radio signals from other planets. 26. ANS: F Only one small part of the electromagnetic spectrum consists of the energy that forms visible light. 27. ANS: F A ga ...
[21.01] The Kuiper Belt Survey of the GEST Mission
... resonant populations (Malhotra 2000, Protostars and Planets IV). Passing stars, perhaps members of a dense cluster from which the sun formed, can play a similar role (Ida et al. 2000, ApJ). We possess insufficient information, in the form of well sampled distributions of the orbital elements of KBOs ...
... resonant populations (Malhotra 2000, Protostars and Planets IV). Passing stars, perhaps members of a dense cluster from which the sun formed, can play a similar role (Ida et al. 2000, ApJ). We possess insufficient information, in the form of well sampled distributions of the orbital elements of KBOs ...
Life Beyond Earth Exhibition
... Located on the second level of the building, Life Beyond Earth is part of MSC space and aerospace exhibits housed in the Our Place In Space area of the building. Major sections of the exhibition cover the vastness of the universe, places in the solar system where life could exist, the search for exo ...
... Located on the second level of the building, Life Beyond Earth is part of MSC space and aerospace exhibits housed in the Our Place In Space area of the building. Major sections of the exhibition cover the vastness of the universe, places in the solar system where life could exist, the search for exo ...
new horizons pluto approach navigation
... and Charon on a star background provides a powerful observation of the total orbit size. The mass ratio or the allocation of mass between Pluto and Charon is more difficult to discern from Earth based observations. Pluto and Charon orbit about their barycenter in elliptical orbits whose semi-major a ...
... and Charon on a star background provides a powerful observation of the total orbit size. The mass ratio or the allocation of mass between Pluto and Charon is more difficult to discern from Earth based observations. Pluto and Charon orbit about their barycenter in elliptical orbits whose semi-major a ...
Unofficial Noctis IV CE R11.x Users Manual
... Dark spots tend to be watery, lighter ones more soily. You can visit any part of the planet/moon, but the dark side is the night-side so it will be quite … well dark. When using this computer you can use the Cloud Filter function by pressing “C” - removing clouds from the planet surface for a cleare ...
... Dark spots tend to be watery, lighter ones more soily. You can visit any part of the planet/moon, but the dark side is the night-side so it will be quite … well dark. When using this computer you can use the Cloud Filter function by pressing “C” - removing clouds from the planet surface for a cleare ...
New Horizons Mission Design for the Pluto-Kuiper Belt
... As the first scientific reconnaissance mission to explore Pluto, the Pluto-Kuiper Belt mission will investigate the geology, surface composition, and atmosphere of Pluto and its moon Charon and visit one or more Kuiper Belt objects (KBOs) positioned beyond Pluto’s orbit. This mission will be impleme ...
... As the first scientific reconnaissance mission to explore Pluto, the Pluto-Kuiper Belt mission will investigate the geology, surface composition, and atmosphere of Pluto and its moon Charon and visit one or more Kuiper Belt objects (KBOs) positioned beyond Pluto’s orbit. This mission will be impleme ...
Tidal Venuses: Triggering a Climate Catastrophe via Tidal Heating
... longer has water and cannot support life. We call these planets “Tidal Venuses,” and the phenomenon a “tidal greenhouse.” Tidal effects also circularize the orbit, which decreases tidal heating. Hence, some planets may form with large eccentricity, with its accompanying large tidal heating, and lose ...
... longer has water and cannot support life. We call these planets “Tidal Venuses,” and the phenomenon a “tidal greenhouse.” Tidal effects also circularize the orbit, which decreases tidal heating. Hence, some planets may form with large eccentricity, with its accompanying large tidal heating, and lose ...
Radial Velocity - Yale Exoplanet
... The unknown inclination angle i prevents us from meaIn this equation, v is the velocity of the source relative suring the true mass of the companion m2 . While this is an important limitation of the RV technique for individual to the observer, k is the unit vector pointing from the obsystems, this f ...
... The unknown inclination angle i prevents us from meaIn this equation, v is the velocity of the source relative suring the true mass of the companion m2 . While this is an important limitation of the RV technique for individual to the observer, k is the unit vector pointing from the obsystems, this f ...
How we think the planets were born
... The Geminids can be annually observed in the first half of December, with its peak activity being around December 14. The shower owes its name to the constellation Gemini from where the meteors appear to emerge from in the sky (the so-called “radiant”). Unlike most other meteor showers, the Geminids ...
... The Geminids can be annually observed in the first half of December, with its peak activity being around December 14. The shower owes its name to the constellation Gemini from where the meteors appear to emerge from in the sky (the so-called “radiant”). Unlike most other meteor showers, the Geminids ...
astro-ph/0507149 PDF
... Goldreich et al. (2002) with they postulated that systems of higher multiplicity could occur. The concentration of KBO particles in a given region must be relatively high near the position of a large planet for even transient binary KBO formation. KBO densities on the order of 12/AU2 resulted in tra ...
... Goldreich et al. (2002) with they postulated that systems of higher multiplicity could occur. The concentration of KBO particles in a given region must be relatively high near the position of a large planet for even transient binary KBO formation. KBO densities on the order of 12/AU2 resulted in tra ...
File
... they quickly get drawn into a debate about astrology. For many, it’s hard to know how to respond politely to someone who takes this ancient superstition seriously. Yet, many well-meaning people develop an interest in astrology because of its constant play in the media and simply don’t have the backg ...
... they quickly get drawn into a debate about astrology. For many, it’s hard to know how to respond politely to someone who takes this ancient superstition seriously. Yet, many well-meaning people develop an interest in astrology because of its constant play in the media and simply don’t have the backg ...
evidence for a distant giant planet in the solar system
... data. The clustering in ω therefore appears to be real. Orbital grouping in ω is surprising because gravitational torques exerted by the giant planets are expected to randomize this parameter over the multi-Gyr age of the solar system. In other words, the values of ω will not stay clustered unless s ...
... data. The clustering in ω therefore appears to be real. Orbital grouping in ω is surprising because gravitational torques exerted by the giant planets are expected to randomize this parameter over the multi-Gyr age of the solar system. In other words, the values of ω will not stay clustered unless s ...
Dynamical evolution of planetary systems
... There are two possible mechanisms by which we envision that giant planets can form. The first is nicknamed the “core-accretion mechanism”: the coagulation of solid particles forms a core typically of about 10 Earth masses (M⊕ ) while the gas is still present in the proto-planetary disk; the core the ...
... There are two possible mechanisms by which we envision that giant planets can form. The first is nicknamed the “core-accretion mechanism”: the coagulation of solid particles forms a core typically of about 10 Earth masses (M⊕ ) while the gas is still present in the proto-planetary disk; the core the ...
DYNAMICS OF THE GIANT PLANETS OF THE SOLAR SYSTEM IN
... periods of Saturn and Jupiter was initially slightly less than 2, so that the planets were close to their mutual 1: 2 MMR; Uranus and Neptune were supposedly orbiting the Sun a few AU beyond the gas giants, and a massive planetesimal disk extended from about 1.5 AU beyond the last planet up to 30Y35 ...
... periods of Saturn and Jupiter was initially slightly less than 2, so that the planets were close to their mutual 1: 2 MMR; Uranus and Neptune were supposedly orbiting the Sun a few AU beyond the gas giants, and a massive planetesimal disk extended from about 1.5 AU beyond the last planet up to 30Y35 ...
Effects of Planetary Migration on Natural Satellites of the Outer Planets
... we are representing the original planetesimal disk by a limited population of 1000 bodies. One may ask whether this approximation is adequate, and whether our results are expected to represent the effects of the original disk. The answer to this question depends on two aspects: (i) the mass distribu ...
... we are representing the original planetesimal disk by a limited population of 1000 bodies. One may ask whether this approximation is adequate, and whether our results are expected to represent the effects of the original disk. The answer to this question depends on two aspects: (i) the mass distribu ...
The white dwarf population within 40 pc of the Sun
... ∼ 10 , which for practical applications is virtually infinite. When Gaussian probability distributions were needed we employed the Box-Muller algorithm (Press et al. 1986). For each of the synthetic white dwarf populations described below, we generated 50 independent Monte Carlo simulations which em ...
... ∼ 10 , which for practical applications is virtually infinite. When Gaussian probability distributions were needed we employed the Box-Muller algorithm (Press et al. 1986). For each of the synthetic white dwarf populations described below, we generated 50 independent Monte Carlo simulations which em ...
The white dwarf population within 40 pc of the Sun
... Over the last decades several surveys have provided us with different samples of disk white dwarfs. Hot white dwarfs are preferentially detected using ultraviolet color excesses. The Palomar Green Survey (Green et al. 1986) and the Kiso Schmidt Survey (Kondo et al. 1984) used this technique to study ...
... Over the last decades several surveys have provided us with different samples of disk white dwarfs. Hot white dwarfs are preferentially detected using ultraviolet color excesses. The Palomar Green Survey (Green et al. 1986) and the Kiso Schmidt Survey (Kondo et al. 1984) used this technique to study ...
The albedo-color diversity of transneptunian objects
... http://reference.wolfram.com/mathematica/tutorial/PartitioningDataIntoClusters.html ...
... http://reference.wolfram.com/mathematica/tutorial/PartitioningDataIntoClusters.html ...
Resonant Origins for Pluto`s High Inclination
... To study the effects of orbital resonances numerically, we employed the integration engines HNBody and HNDrag [8]. In addition to providing an efficient symplectic N-body integrator, the latter code allowed us to place artificial drag forces on each planet, simulating the migratory effects of scatte ...
... To study the effects of orbital resonances numerically, we employed the integration engines HNBody and HNDrag [8]. In addition to providing an efficient symplectic N-body integrator, the latter code allowed us to place artificial drag forces on each planet, simulating the migratory effects of scatte ...
Dwarf planet
A dwarf planet is a planetary-mass object that is neither a planet nor a natural satellite. That is, it is in direct orbit of the Sun, and is massive enough for its shape to be in hydrostatic equilibrium under its own gravity, but has not cleared the neighborhood around its orbit.The term dwarf planet was adopted in 2006 as part of a three-way categorization of bodies orbiting the Sun, brought about by an increase in discoveries of objects farther away from the Sun than Neptune that rivaled Pluto in size, and finally precipitated by the discovery of an even more massive object, Eris. The exclusion of dwarf planets from the roster of planets by the IAU has been both praised and criticized; it was said to be the ""right decision"" by astronomer Mike Brown, who discovered Eris and other new dwarf planets, but has been rejected by Alan Stern, who had coined the term dwarf planet in 1990.The International Astronomical Union (IAU) currently recognizes five dwarf planets: Ceres, Pluto, Haumea, Makemake, and Eris. Brown criticizes this official recognition: ""A reasonable person might think that this means that there are five known objects in the solar system which fit the IAU definition of dwarf planet, but this reasonable person would be nowhere close to correct.""It is suspected that another hundred or so known objects in the Solar System are dwarf planets. Estimates are that up to 200 dwarf planets may be found when the entire region known as the Kuiper belt is explored, and that the number may exceed 10,000 when objects scattered outside the Kuiper belt are considered. Individual astronomers recognize several of these, and in August 2011 Mike Brown published a list of 390 candidate objects, ranging from ""nearly certain"" to ""possible"" dwarf planets. Brown currently identifies eleven known objects – the five accepted by the IAU plus 2007 OR10, Quaoar, Sedna, Orcus, 2002 MS4 and Salacia – as ""virtually certain"", with another dozen highly likely. Stern states that there are more than a dozen known dwarf planets.However, only two of these bodies, Ceres and Pluto, have been observed in enough detail to demonstrate that they actually fit the IAU's definition. The IAU accepted Eris as a dwarf planet because it is more massive than Pluto. They subsequently decided that unnamed trans-Neptunian objects with an absolute magnitude brighter than +1 (and hence a diameter of ≥838 km assuming a geometric albedo of ≤1) are to be named under the assumption that they are dwarf planets. The only two such objects known at the time, Makemake and Haumea, went through this naming procedure and were declared to be dwarf planets. The question of whether other likely objects are dwarf planets has never been addressed by the IAU. The classification of bodies in other planetary systems with the characteristics of dwarf planets has not been addressed.