Planet migration
... which results in three types of migration (Papaloizou et al. 2007): Type I: small mass planets, treated in linear regime (Ward 1997) Type II: larger mass planets open a gap (non-linear) (Lin & Papaloizou 1984) Type III: runaway migration from co-orbital torques (Masset & Papaloizou 2003) See Seba’s ...
... which results in three types of migration (Papaloizou et al. 2007): Type I: small mass planets, treated in linear regime (Ward 1997) Type II: larger mass planets open a gap (non-linear) (Lin & Papaloizou 1984) Type III: runaway migration from co-orbital torques (Masset & Papaloizou 2003) See Seba’s ...
Can Earth-Type Habitable Planets Exist Around 47 UMa?
... planets is in principle possible in the planetary system of 47 UMa. Our analysis assumes that Earth-type planets have successfully formed and are orbitally stable. Our study of habitability deliberately follows an Earth-based view while investigating the long-term possibility of photosynthetic bioma ...
... planets is in principle possible in the planetary system of 47 UMa. Our analysis assumes that Earth-type planets have successfully formed and are orbitally stable. Our study of habitability deliberately follows an Earth-based view while investigating the long-term possibility of photosynthetic bioma ...
Astronomy Today 7th Edition Chaisson/McMillan
... Kuiper belt objects have been detected from Earth; a few are as large as, or larger than, Pluto, and their composition appears similar. About 1/3 of all Kuiper belt objects (including Pluto) have orbits that are in a 3:2 resonance with Neptune; such objects are called “plutinos.” ...
... Kuiper belt objects have been detected from Earth; a few are as large as, or larger than, Pluto, and their composition appears similar. About 1/3 of all Kuiper belt objects (including Pluto) have orbits that are in a 3:2 resonance with Neptune; such objects are called “plutinos.” ...
Unit - 2 The Earth and Its History- Students` Manual - CBSE
... learning domains of the global learners. The CBSE-i curriculum has taken cognizance of these requirements. The CBSE-i aims to carry forward the basic strength of the Indian system of education while promoting critical and creative thinking skills, effective communication skills, interpersonal and co ...
... learning domains of the global learners. The CBSE-i curriculum has taken cognizance of these requirements. The CBSE-i aims to carry forward the basic strength of the Indian system of education while promoting critical and creative thinking skills, effective communication skills, interpersonal and co ...
the moons of jovian planets.
... Question 8 The asteroid belt is evidence of a) a planet that once orbited the Sun but later was destroyed. b) ancient material from the formation of the solar system. c) a collision between Jupiter and one of its larger moons. d) comets that were trapped by Jupiter’s gravitational field. Explanatio ...
... Question 8 The asteroid belt is evidence of a) a planet that once orbited the Sun but later was destroyed. b) ancient material from the formation of the solar system. c) a collision between Jupiter and one of its larger moons. d) comets that were trapped by Jupiter’s gravitational field. Explanatio ...
Chapter 8 Welcome to the Solar System What properties of our solar
... Origin of Earth’s Water • Water may have come to Earth by way of icy planetesimals from outer solar system ...
... Origin of Earth’s Water • Water may have come to Earth by way of icy planetesimals from outer solar system ...
Chapter 8 Welcome to the Solar System
... – Bombardment of newly formed planets by planetesimals may explain the exceptions ...
... – Bombardment of newly formed planets by planetesimals may explain the exceptions ...
Ptolemy, Copernicus - Berry College Professional WordPress Sites
... no set scale for relating the size of one planet’s orbit to another. Even the order of the planets is not determined in the Ptolemaic system. • The model automatically makes a planet brighter when it is in retrograde, because at that time it will be closer to Earth. • Retrograde can be synchronize ...
... no set scale for relating the size of one planet’s orbit to another. Even the order of the planets is not determined in the Ptolemaic system. • The model automatically makes a planet brighter when it is in retrograde, because at that time it will be closer to Earth. • Retrograde can be synchronize ...
Solar System
... Ganymede is the largest moon of Jupiter and the largest moon in the entire solar system. It is composed of rock and water ice, and it has craters and possible earthquakes. Callisto is the most heavily cratered object in the solar system. It has a huge bull’s-eye crater called Valhalla, and its surfa ...
... Ganymede is the largest moon of Jupiter and the largest moon in the entire solar system. It is composed of rock and water ice, and it has craters and possible earthquakes. Callisto is the most heavily cratered object in the solar system. It has a huge bull’s-eye crater called Valhalla, and its surfa ...
An extrasolar planetary system with three
... Over the past two years, the search for low-mass extrasolar planets has led to the detection of seven so-called ‘hot Neptunes’ or ‘super-Earths’ around Sun-like stars. These planets have masses 5–20 times larger than the Earth and are mainly found on close-in orbits with periods of 2–15 days. Here w ...
... Over the past two years, the search for low-mass extrasolar planets has led to the detection of seven so-called ‘hot Neptunes’ or ‘super-Earths’ around Sun-like stars. These planets have masses 5–20 times larger than the Earth and are mainly found on close-in orbits with periods of 2–15 days. Here w ...
Birth of the Solar System
... Summarize general features of Solar System Any model for formation of the solar system must explain large number of observations ...
... Summarize general features of Solar System Any model for formation of the solar system must explain large number of observations ...
Uranus - Uplift Peak
... the father of Kronos (Saturn) and grandfather of Zeus (Jupiter). Though it is visible to the naked eye like the five classical planets, it was never recognized as a planet by ancient observers because of its dimness and slow orbit. Sir William Herschel announced its discovery on March 13, 1781, expa ...
... the father of Kronos (Saturn) and grandfather of Zeus (Jupiter). Though it is visible to the naked eye like the five classical planets, it was never recognized as a planet by ancient observers because of its dimness and slow orbit. Sir William Herschel announced its discovery on March 13, 1781, expa ...
The Discovery of Planets beyond the Solar System
... distance. The planet moving the farthest away is at 2.8 times the EarthSun distance from its star. In the Solar System, all planets move in near-circular orbits (except Pluto); among the discovered extrasolar planets, almost a third move in very elongated orbits. Planets have been found even around ...
... distance. The planet moving the farthest away is at 2.8 times the EarthSun distance from its star. In the Solar System, all planets move in near-circular orbits (except Pluto); among the discovered extrasolar planets, almost a third move in very elongated orbits. Planets have been found even around ...
Uranus By Sharon Fabian
... noticed something strange. Uranus didn't travel along its path at an even speed. It sped up sometimes, and sometimes it slowed down. What did this mean? What was causing Uranus to change its speed at certain times? The scientists had a theory. They thought the cause might be a pull from the gravity ...
... noticed something strange. Uranus didn't travel along its path at an even speed. It sped up sometimes, and sometimes it slowed down. What did this mean? What was causing Uranus to change its speed at certain times? The scientists had a theory. They thought the cause might be a pull from the gravity ...
3 The Outer Planets
... is twice as large as the other eight planets combined. Even though it is large, Jupiter’s rotation takes less than 10 hours. Like the sun, Jupiter is made mostly of hydrogen and helium. Jupiter’s atmosphere also contains small amounts of ammonia, methane, and water. These gases form clouds in the ou ...
... is twice as large as the other eight planets combined. Even though it is large, Jupiter’s rotation takes less than 10 hours. Like the sun, Jupiter is made mostly of hydrogen and helium. Jupiter’s atmosphere also contains small amounts of ammonia, methane, and water. These gases form clouds in the ou ...
July 2014 Newsletter - Chesterfield Astronomical Society
... planets in the outer solar system have cracked surfaces with evidence for ocean interiors -Jupiter's moon Europa and Saturn's moon Enceladus are two examples. As Europa and Enceladus move in their orbits, a gravitational tug-of-war between their respective parent planets and neighboring moons keeps ...
... planets in the outer solar system have cracked surfaces with evidence for ocean interiors -Jupiter's moon Europa and Saturn's moon Enceladus are two examples. As Europa and Enceladus move in their orbits, a gravitational tug-of-war between their respective parent planets and neighboring moons keeps ...
ph709-15
... Small planets between the sizes of Earth and Neptune substantially outnumber Jupiter-sized planets. Super-Earths with orbital periods less than 100 days are extremely abundant around Sun-like stars. It is unlikely that these planets formed at their current locations. Rather, they likely formed at la ...
... Small planets between the sizes of Earth and Neptune substantially outnumber Jupiter-sized planets. Super-Earths with orbital periods less than 100 days are extremely abundant around Sun-like stars. It is unlikely that these planets formed at their current locations. Rather, they likely formed at la ...
Exploring the Solar System - Rourke Publishing eBook Delivery
... different rates. Mercury travels quickly around the Sun in just 88 Earth days, but it rotates very slowly. One Mercurian day is 176 Earth days long. It takes Venus 225 Earth days to orbit the Sun, but it rotates very slowly. It takes 243 Earth days for Venus to rotate once. Since a day is the time ...
... different rates. Mercury travels quickly around the Sun in just 88 Earth days, but it rotates very slowly. One Mercurian day is 176 Earth days long. It takes Venus 225 Earth days to orbit the Sun, but it rotates very slowly. It takes 243 Earth days for Venus to rotate once. Since a day is the time ...
The Dawn of Distant Skies
... up dramatically. By 2001 observers had identified sodium in the those first discoveries nearly two decades ago, few astrophysiatmosphere of one exoplanet. Since then, they have identified cists were thinking about transits at all, simply because the methane, carbon dioxide, carbon monoxide and water ...
... up dramatically. By 2001 observers had identified sodium in the those first discoveries nearly two decades ago, few astrophysiatmosphere of one exoplanet. Since then, they have identified cists were thinking about transits at all, simply because the methane, carbon dioxide, carbon monoxide and water ...
The Formation of Planetary Systems
... Icy planetesimals far from the Sun were ejected into distant orbits by gravitational interaction with the jovian planets, into the Kuiper belt and the Oort cloud Some were left with extremely eccentric orbits and appear in the inner solar system as comets ...
... Icy planetesimals far from the Sun were ejected into distant orbits by gravitational interaction with the jovian planets, into the Kuiper belt and the Oort cloud Some were left with extremely eccentric orbits and appear in the inner solar system as comets ...
Slide 1
... gases of CH4, NH3, H2O and others are formed. UV rays from the solar center merge the gases into heavy organic chemical deposits (called Tholins), which precipitate to the surface. N2 becomes the dominant gas in the atmosphere. ...
... gases of CH4, NH3, H2O and others are formed. UV rays from the solar center merge the gases into heavy organic chemical deposits (called Tholins), which precipitate to the surface. N2 becomes the dominant gas in the atmosphere. ...
Habitable zone - Penn State University
... trust theorists • We can also define empirical limits on the HZ – From looking at its surface, we can discern that Venus has not had liquid water for at least the last 1 b.y. – Mars, on the other hand, looks as if it was habitable at about 3.8 Ga ...
... trust theorists • We can also define empirical limits on the HZ – From looking at its surface, we can discern that Venus has not had liquid water for at least the last 1 b.y. – Mars, on the other hand, looks as if it was habitable at about 3.8 Ga ...
15.6 Planets Beyond the Solar System
... However many multi-planet systems are now known, and one system has two planets that resemble Jupiter and Saturn. (See earlier slide with a Jupiter-like orbit for reminder of why it takes so long to find these planets.) Selection effect biases sample toward massive planets ...
... However many multi-planet systems are now known, and one system has two planets that resemble Jupiter and Saturn. (See earlier slide with a Jupiter-like orbit for reminder of why it takes so long to find these planets.) Selection effect biases sample toward massive planets ...
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.