![Homework #3, AST 203, Spring 2010](http://s1.studyres.com/store/data/013093201_1-ff2bd7537aa26041d3af9b74f7c01585-300x300.png)
Homework #3, AST 203, Spring 2010
... written down without *any* context whatsoever (e.g., for 1a, writing “164.85 years”, and nothing else), take off 1/3 of the points. One point off per question for inappropriately high precision (which usually means more than 2 significant figures in this homework). However, no points off for calcula ...
... written down without *any* context whatsoever (e.g., for 1a, writing “164.85 years”, and nothing else), take off 1/3 of the points. One point off per question for inappropriately high precision (which usually means more than 2 significant figures in this homework). However, no points off for calcula ...
the orbits of neptune`s outer satellites
... orbits about the Sun (so-called direct orbits). Further away from the planet, a dynamically diverse population of satellites with potentially various origins is encountered. They are called the “irregulars” and are characterized by their distant orbits with large inclinations, eccentricities, and lo ...
... orbits about the Sun (so-called direct orbits). Further away from the planet, a dynamically diverse population of satellites with potentially various origins is encountered. They are called the “irregulars” and are characterized by their distant orbits with large inclinations, eccentricities, and lo ...
Detecting Earth Mass Planets with Gravitational
... planetary deviations and a limited amount of observing time, how long should we follow each event ? The probabilities given in Table 1 assume that each event is followed from event detection at A \ 1.58 until A drops to 1.13, but if we stop the follow-up observations when A [ 1.34, then we will only ...
... planetary deviations and a limited amount of observing time, how long should we follow each event ? The probabilities given in Table 1 assume that each event is followed from event detection at A \ 1.58 until A drops to 1.13, but if we stop the follow-up observations when A [ 1.34, then we will only ...
What we know about Jupiter
... the outer cold regions of the solar system into the This magnetic field traps charged particles inner solar system where it could be captured by electrons, protons and ions - some originating from the Earth. the solar wind but also flying in from Jupiter's Galilean moons, particularly volcanic Io. T ...
... the outer cold regions of the solar system into the This magnetic field traps charged particles inner solar system where it could be captured by electrons, protons and ions - some originating from the Earth. the solar wind but also flying in from Jupiter's Galilean moons, particularly volcanic Io. T ...
KS1 Education Guide - Immersive Theatres
... The Earth is the third planet from the Sun in a system that includes the Moon, the Sun, seven other planets and their moons, and smaller objects, such as asteroids and comets. The Sun, an average star, is the central and largest body in the Solar System. (5 – 8 Standard) ...
... The Earth is the third planet from the Sun in a system that includes the Moon, the Sun, seven other planets and their moons, and smaller objects, such as asteroids and comets. The Sun, an average star, is the central and largest body in the Solar System. (5 – 8 Standard) ...
A Human-Powered Orrery - Astronomical Society of the Pacific
... Visualizing planetary motions and their relationships to each other is difficult for many learners. In many of our outreach programs over the years, we modeled the motion of the Earth around the Sun and the seasonal constellations, but this did not involve a lot of audience participation. Then, in 2 ...
... Visualizing planetary motions and their relationships to each other is difficult for many learners. In many of our outreach programs over the years, we modeled the motion of the Earth around the Sun and the seasonal constellations, but this did not involve a lot of audience participation. Then, in 2 ...
Extreme Optics and the Search for Earth-Like Planets
... least 20 m. So, based only on wavelength and planet–star angle, one finds that the starshade must be a large distance (R/v < 40,000 km) from the telescope. Conveniently, occulters with diameters of tens of metres can also fully shade the large (up to 10 m in diameter) telescopes suitable for studyin ...
... least 20 m. So, based only on wavelength and planet–star angle, one finds that the starshade must be a large distance (R/v < 40,000 km) from the telescope. Conveniently, occulters with diameters of tens of metres can also fully shade the large (up to 10 m in diameter) telescopes suitable for studyin ...
The High Eccentricity of the Planet Around 16 Cyg B
... Very recently, Cochran et al. (1996) have announced the discovery of a new extra-solar ”planet-candidate”, with minimum mass of 1.5 Jupiter masses, orbiting 16 Cyg B. The new planet has two special features. The first one is its orbital eccentricity, 0.66, which is remarkably larger than the eccentr ...
... Very recently, Cochran et al. (1996) have announced the discovery of a new extra-solar ”planet-candidate”, with minimum mass of 1.5 Jupiter masses, orbiting 16 Cyg B. The new planet has two special features. The first one is its orbital eccentricity, 0.66, which is remarkably larger than the eccentr ...
slides - Relativity Group
... years • A small number of comets have periods of less than 200 years – these are the short-period comets • Repeated passages around the Sun eventually deplete the comet of its icy material ...
... years • A small number of comets have periods of less than 200 years – these are the short-period comets • Repeated passages around the Sun eventually deplete the comet of its icy material ...
Alpha Centauri 3
... disrupt the orbit of the planet. Recent numerical integrations, however, suggest that stable planetary orbits exist: within three AUs (four AUs for retrograde orbits) of either Alpha Centauri A or B in the plane of the binary's orbit; only as far as 0.23 AU for 90-degree inclined orbits; and beyond ...
... disrupt the orbit of the planet. Recent numerical integrations, however, suggest that stable planetary orbits exist: within three AUs (four AUs for retrograde orbits) of either Alpha Centauri A or B in the plane of the binary's orbit; only as far as 0.23 AU for 90-degree inclined orbits; and beyond ...
fifth midterm -- review problems
... Find the internal kinetic energy of the system in part (c) before and after the collision, k i and k f, respectively. If you have not solved part 9c), use v for the final velocity. A particle in space of mass m = 2.00 kg is moving with velocity v = 8 m/s î. The particle breaks up into two particles ...
... Find the internal kinetic energy of the system in part (c) before and after the collision, k i and k f, respectively. If you have not solved part 9c), use v for the final velocity. A particle in space of mass m = 2.00 kg is moving with velocity v = 8 m/s î. The particle breaks up into two particles ...
2. Chapter 11
... To be considered a planet, a body must orbit one or more stars, be large enough that its own gravity holds it in a spherical shape, and be the only body occupying the orbital path. Large distances keep our solar neighbourhood’s family of eight planets well separated from each other (Figure 11.9). In ...
... To be considered a planet, a body must orbit one or more stars, be large enough that its own gravity holds it in a spherical shape, and be the only body occupying the orbital path. Large distances keep our solar neighbourhood’s family of eight planets well separated from each other (Figure 11.9). In ...
Exploring Space
... gamble had paid off. It showed stars as brilliant points of light. Hale’s 100-inch telescope produced excellent results, and it remained the largest telescope in the world for 40 years. Using the 100-inch telescope and new methods for measuring distances, Hubble confirmed the existence of galaxies b ...
... gamble had paid off. It showed stars as brilliant points of light. Hale’s 100-inch telescope produced excellent results, and it remained the largest telescope in the world for 40 years. Using the 100-inch telescope and new methods for measuring distances, Hubble confirmed the existence of galaxies b ...
Kuiper Belt
... in a few moments, Pluto is joined by a few other dwarf planets, a term I first used last lesson. – Dwarf planets are essentially very large asteroids – also a term we’ll get to – but don’t quite meet the requirements of being a planet. • Reminder: Planets need to be rounded by gravity, orbiting the ...
... in a few moments, Pluto is joined by a few other dwarf planets, a term I first used last lesson. – Dwarf planets are essentially very large asteroids – also a term we’ll get to – but don’t quite meet the requirements of being a planet. • Reminder: Planets need to be rounded by gravity, orbiting the ...
topics and terms - Rice Space Institute
... 2nd: the line from the Sun to the planet in orbit sweeps out equal areas in equal times 3rd: (harmonic law): the period of a planet T squared is proportional to the semimajor axis, a, cubed. Special case for planets around the Sun: (T (years))2 = (a (AU))3. 39. escape velocity: the speed at which, i ...
... 2nd: the line from the Sun to the planet in orbit sweeps out equal areas in equal times 3rd: (harmonic law): the period of a planet T squared is proportional to the semimajor axis, a, cubed. Special case for planets around the Sun: (T (years))2 = (a (AU))3. 39. escape velocity: the speed at which, i ...
PowerPoint Presentation - 5. Universal Laws of Motion
... • The Moon’s gravity stretches Earth along the EarthMoon line, so that it bulges both toward and away from the Moon. • Why are tides on Earth caused primarily by the Moon rather than by the Sun? • Earth’s gravitational attraction to the sun is stronger than its gravitational attraction to the Moon, ...
... • The Moon’s gravity stretches Earth along the EarthMoon line, so that it bulges both toward and away from the Moon. • Why are tides on Earth caused primarily by the Moon rather than by the Sun? • Earth’s gravitational attraction to the sun is stronger than its gravitational attraction to the Moon, ...
giant planet formation i. introduction
... that these planets have ice/rock cores. In the case of Jupiter, models without a core are obtained only in the case of the less favored interpolated equation of state of hydrogen, whose calculation is not completely thermodynamically consistent (see Saumon et al. 1995). In the case of Saturn, it is ...
... that these planets have ice/rock cores. In the case of Jupiter, models without a core are obtained only in the case of the less favored interpolated equation of state of hydrogen, whose calculation is not completely thermodynamically consistent (see Saumon et al. 1995). In the case of Saturn, it is ...
EVOLUTIONARY TRACKS OF THE CLIMATE OF EARTH
... is assumed to be proportional to the product of the seafloor spreading rate and the melt generation depth (e.g., Tajika & Matsui 1992). The seafloor spreading rate is estimated from the heat flow that is obtained by the thermal evolution model (e.g., Tajika & Matsui 1992). The melt generation depth is ...
... is assumed to be proportional to the product of the seafloor spreading rate and the melt generation depth (e.g., Tajika & Matsui 1992). The seafloor spreading rate is estimated from the heat flow that is obtained by the thermal evolution model (e.g., Tajika & Matsui 1992). The melt generation depth is ...
ASTR 330: The Solar System
... • Remember that, if all the planets formed out of a planar disk having a certain rotation axis, the planets should all be rotating with their axes nearly aligned with the axis of the Sun. • The most likely explanation for these retrograde rotators is… what? • Impacts of course! • Besides the obvious ...
... • Remember that, if all the planets formed out of a planar disk having a certain rotation axis, the planets should all be rotating with their axes nearly aligned with the axis of the Sun. • The most likely explanation for these retrograde rotators is… what? • Impacts of course! • Besides the obvious ...
How far away are the Stars?
... The Distance to the Stars! • Angular Separation is not enough! • We want to know the answer to the ‘age ...
... The Distance to the Stars! • Angular Separation is not enough! • We want to know the answer to the ‘age ...
C. _________Magnetosphere is the biggest thing in the
... Click on the Back button and then click on Discover Pluto to answer the following: A. How is Pluto’s discovery similar to that of Neptune? Because they look the same B. What three facts made Pluto difficult to find? It’s not a planet any more, it has no water. C. Click on isn’t a planet at all and ...
... Click on the Back button and then click on Discover Pluto to answer the following: A. How is Pluto’s discovery similar to that of Neptune? Because they look the same B. What three facts made Pluto difficult to find? It’s not a planet any more, it has no water. C. Click on isn’t a planet at all and ...
gas giant planets as dynamical barriers to inward
... CNRS, Laboratoire d’Astrophysique de Bordeaux, UMR 5804, F-33270 Floirac, France Received 2014 November 14; accepted 2015 January 24; published 2015 February 17 ...
... CNRS, Laboratoire d’Astrophysique de Bordeaux, UMR 5804, F-33270 Floirac, France Received 2014 November 14; accepted 2015 January 24; published 2015 February 17 ...
Primary and secondary eclipse spectroscopy with JWST: exploring
... or ices, of non-solar composition. This volatile content represents a small fraction of the total planetary mass and is fractionated between the interior (crust, mantle), the surface oceans and/or ice sheets, the atmosphere and outer space through gravitational escape (induced by impacts, exospheric ...
... or ices, of non-solar composition. This volatile content represents a small fraction of the total planetary mass and is fractionated between the interior (crust, mantle), the surface oceans and/or ice sheets, the atmosphere and outer space through gravitational escape (induced by impacts, exospheric ...
Planets beyond Neptune
![](https://en.wikipedia.org/wiki/Special:FilePath/Percival_Lowell_observing_Venus_from_the_Lowell_Observatory_in_1914.jpg?width=300)
Following the discovery of the planet Neptune in 1846, there was considerable speculation that another planet might exist beyond its orbit. The search began in the mid-19th century and culminated at the start of the 20th with Percival Lowell's quest for Planet X. Lowell proposed the Planet X hypothesis to explain apparent discrepancies in the orbits of the giant planets, particularly Uranus and Neptune, speculating that the gravity of a large unseen ninth planet could have perturbed Uranus enough to account for the irregularities.Clyde Tombaugh's discovery of Pluto in 1930 appeared to validate Lowell's hypothesis, and Pluto was officially named the ninth planet. In 1978, Pluto was conclusively determined to be too small for its gravity to affect the giant planets, resulting in a brief search for a tenth planet. The search was largely abandoned in the early 1990s, when a study of measurements made by the Voyager 2 spacecraft found that the irregularities observed in Uranus's orbit were due to a slight overestimation of Neptune's mass. After 1992, the discovery of numerous small icy objects with similar or even wider orbits than Pluto led to a debate over whether Pluto should remain a planet, or whether it and its neighbours should, like the asteroids, be given their own separate classification. Although a number of the larger members of this group were initially described as planets, in 2006 the International Astronomical Union reclassified Pluto and its largest neighbours as dwarf planets, leaving Neptune the farthest known planet in the Solar System.Today, the astronomical community widely agrees that Planet X, as originally envisioned, does not exist, but the concept of Planet X has been revived by a number of astronomers to explain other anomalies observed in the outer Solar System. In popular culture, and even among some astronomers, Planet X has become a stand-in term for any undiscovered planet in the outer Solar System, regardless of its relationship to Lowell's hypothesis. Other trans-Neptunian planets have also been suggested, based on different evidence. As of March 2014, observations with the WISE telescope have ruled out the possibility of a Saturn-sized object out to 10,000 AU, and a Jupiter-sized or larger object out to 26,000 AU.