pdf file with complementary illustrations / animations
... For the last 20 years the giant planets known as hot Jupiters have presented astronomers with a puzzle. How did they settle into orbits 100 times closer to their host stars than our own Jupiter is to the Sun? An international team of astronomers has announced this week1 the discovery of a newborn ho ...
... For the last 20 years the giant planets known as hot Jupiters have presented astronomers with a puzzle. How did they settle into orbits 100 times closer to their host stars than our own Jupiter is to the Sun? An international team of astronomers has announced this week1 the discovery of a newborn ho ...
What is a white dwarf?
... place cannot be in the same state • Adding mass to a white dwarf increases its gravity, forcing electrons into a smaller space • In order to avoid being in the same state in the same place some of the electrons need to move faster. That increases the temperature, but not the pressure degeneracy pres ...
... place cannot be in the same state • Adding mass to a white dwarf increases its gravity, forcing electrons into a smaller space • In order to avoid being in the same state in the same place some of the electrons need to move faster. That increases the temperature, but not the pressure degeneracy pres ...
In This Lesson
... By the end of this lesson… • You should be able to identify some of the major distinguishing features of planets within our solar system. • You should be able to determine the composition and density of the local planets. • You should be able to narrate the birth of the solar system. • You should b ...
... By the end of this lesson… • You should be able to identify some of the major distinguishing features of planets within our solar system. • You should be able to determine the composition and density of the local planets. • You should be able to narrate the birth of the solar system. • You should b ...
Dense (> 3000 kg/m 3 )
... Asteroids are small, rocky objects, while comets and trans-Neptunian objects are made of ice and rock. All are remnants left over from the formation of the planets. Most asteroids are found in the asteroid belt between the orbits of Mars and Jupiter, and most trans-Neptunian objects lie in the Kuipe ...
... Asteroids are small, rocky objects, while comets and trans-Neptunian objects are made of ice and rock. All are remnants left over from the formation of the planets. Most asteroids are found in the asteroid belt between the orbits of Mars and Jupiter, and most trans-Neptunian objects lie in the Kuipe ...
The Planets
... gas and dust remained in a disk around the sun. In this disk, stuff began to clump and form "planetesimals" (pronounced pla-ne-TE-si-mals). These are small rocky bodies, something like asteroids. They crashed into each other and eventually formed the inner planets. At the same time, planetesimals fo ...
... gas and dust remained in a disk around the sun. In this disk, stuff began to clump and form "planetesimals" (pronounced pla-ne-TE-si-mals). These are small rocky bodies, something like asteroids. They crashed into each other and eventually formed the inner planets. At the same time, planetesimals fo ...
On the hunt for a mystery planet
... November — the most distant ever observed. They will not know for many months whether that body stays in the outer Solar System, or ...
... November — the most distant ever observed. They will not know for many months whether that body stays in the outer Solar System, or ...
4-3.1 - S2TEM Centers SC
... sun). Have Venus and Mercury crowd in close to the sun, with Mercury closer than Venus. Have students measure the other distances from the sun until all planets have been placed in the model: Mars 1 foot, 6 inches Jupiter: 5 feet, 3 inches Saturn, 9 feet, 8 inches Uranus: 19 feet 19 Neptune: 30 feet ...
... sun). Have Venus and Mercury crowd in close to the sun, with Mercury closer than Venus. Have students measure the other distances from the sun until all planets have been placed in the model: Mars 1 foot, 6 inches Jupiter: 5 feet, 3 inches Saturn, 9 feet, 8 inches Uranus: 19 feet 19 Neptune: 30 feet ...
by Kendrick Frazier Pluto turns out not to be responsible for
... he began his account, "I perceived one that appeared visibly larger than the rest." Because it had a measurable diameter, it could not be a star. H e continued his observations over the next several nights and observed definite motion. He thought his discovery was a comet, but within two months othe ...
... he began his account, "I perceived one that appeared visibly larger than the rest." Because it had a measurable diameter, it could not be a star. H e continued his observations over the next several nights and observed definite motion. He thought his discovery was a comet, but within two months othe ...
Is the Solar System stable?
... resonance that forces it to keep the same face towards the Earth. The far side of the Moon was completely hidden from us until the era of spaceflight. Most natural satellites in the Solar System are in synchronous spin states although this was not their original state : they have evolved into such ...
... resonance that forces it to keep the same face towards the Earth. The far side of the Moon was completely hidden from us until the era of spaceflight. Most natural satellites in the Solar System are in synchronous spin states although this was not their original state : they have evolved into such ...
the Solar System PowerPoint
... It is about 11 times the radius and 330 times the mass of the earth. ...
... It is about 11 times the radius and 330 times the mass of the earth. ...
SPECIAL REPORT
... moving on nearly circular orbits. After this comes a longer-lasting phase in which embryos “compete.” As these objects interact with one another’s gravity over many orbits, their initially circular orbits become increasingly elliptical. Once these orbits grow eccentric enough, planetary embryos coll ...
... moving on nearly circular orbits. After this comes a longer-lasting phase in which embryos “compete.” As these objects interact with one another’s gravity over many orbits, their initially circular orbits become increasingly elliptical. Once these orbits grow eccentric enough, planetary embryos coll ...
Uranus: Satellites - Empyrean Quest Publishers
... resembles each other in mass and size more than any other planet-satellite pair in the solar system. Two other very small moons were found in 2006. • The distance is also the smallest, 19,640 km • Charon’s orbit period is the same as its rotational period, and also the same as the Pluto’s rotation p ...
... resembles each other in mass and size more than any other planet-satellite pair in the solar system. Two other very small moons were found in 2006. • The distance is also the smallest, 19,640 km • Charon’s orbit period is the same as its rotational period, and also the same as the Pluto’s rotation p ...
Exoplanets
... Humans have always wondered if life exists elsewhere in the universe. Such life could take many forms, including some very different from our own, but because we only have information about Earth-life (carbon-based organisms) we may as well start by looking for life like us. This means we can test n ...
... Humans have always wondered if life exists elsewhere in the universe. Such life could take many forms, including some very different from our own, but because we only have information about Earth-life (carbon-based organisms) we may as well start by looking for life like us. This means we can test n ...
The Planets - Andrew's Blog
... The rest of the missions we’re called the Ulysses, the Cassini, and the New Horizons! How wonderful it is to know most of these mission’s accomplishments and goals so you could get a better recap of them. The planet Jupiter's four largest moons are called the Galilean satellites, after Italian astro ...
... The rest of the missions we’re called the Ulysses, the Cassini, and the New Horizons! How wonderful it is to know most of these mission’s accomplishments and goals so you could get a better recap of them. The planet Jupiter's four largest moons are called the Galilean satellites, after Italian astro ...
Theme 7.1 -- The Formation of the Solar System
... anything about their origin. It's merely a consequence of their proximity to the Sun. But the warmth of the surroundings may have had some role to play in the formation process itself, as we will see. Let's start with and dismiss a common misunderstanding. You might think that the rocky planets are ...
... anything about their origin. It's merely a consequence of their proximity to the Sun. But the warmth of the surroundings may have had some role to play in the formation process itself, as we will see. Let's start with and dismiss a common misunderstanding. You might think that the rocky planets are ...
The Solar System Interplanetary Matter and the Birth of the Planets
... 4. The direction the planets orbit around the Sun is the same as the Sun’s rotation on its axis (Counterclockwise as viewed from Earth north pole). 5. The direction most planets rotate on their axes is the same as that for the Sun. 6. The direction of the planetary satellites’ orbits is the same as ...
... 4. The direction the planets orbit around the Sun is the same as the Sun’s rotation on its axis (Counterclockwise as viewed from Earth north pole). 5. The direction most planets rotate on their axes is the same as that for the Sun. 6. The direction of the planetary satellites’ orbits is the same as ...
Targets and their Environments - Pathways Towards Habitable Planets
... However: Earth-like planetary mass in solar system ≈ 2ME [Fe/H] ≥ -0.3 (Turnbull 08) requirement: stars in young disk population ...
... However: Earth-like planetary mass in solar system ≈ 2ME [Fe/H] ≥ -0.3 (Turnbull 08) requirement: stars in young disk population ...
A brief history of extra-solar planets - X
... Small planets from the Kepler faint star sample Frequency of different sized planets as a function of orbital period. ...
... Small planets from the Kepler faint star sample Frequency of different sized planets as a function of orbital period. ...
Moro_Martin`s Talk - CIERA
... a protostar is formed (no fusion yet). By conservation of angular momentum, what is left of the cloud rotates with the protostar and begins to flatten into a circumstellar disk. Some of this dust and gas accretes onto the protostar adding to its mass. ...
... a protostar is formed (no fusion yet). By conservation of angular momentum, what is left of the cloud rotates with the protostar and begins to flatten into a circumstellar disk. Some of this dust and gas accretes onto the protostar adding to its mass. ...
08_LectureOutlines
... • Where did the solar system come from? – Galactic recycling built the elements from which planets formed. ...
... • Where did the solar system come from? – Galactic recycling built the elements from which planets formed. ...
here
... • Neptune: discovered in 1846 by Johann Galle (based on the predictions of John C. Adams and Urbain Leverrier). • Pluto: discovered in 1930 by Clyde Tombaugh. • Asteroids: thousands, starting in 1801. • Kuiper Belt Objects: Dozens, starting in the 1980s. ...
... • Neptune: discovered in 1846 by Johann Galle (based on the predictions of John C. Adams and Urbain Leverrier). • Pluto: discovered in 1930 by Clyde Tombaugh. • Asteroids: thousands, starting in 1801. • Kuiper Belt Objects: Dozens, starting in the 1980s. ...
here
... • Neptune: discovered in 1846 by Johann Galle (based on the predictions of John C. Adams and Urbain Leverrier). • Pluto: discovered in 1930 by Clyde Tombaugh. • Asteroids: thousands, starting in 1801. • Kuiper Belt Objects: Dozens, starting in the 1980s. ...
... • Neptune: discovered in 1846 by Johann Galle (based on the predictions of John C. Adams and Urbain Leverrier). • Pluto: discovered in 1930 by Clyde Tombaugh. • Asteroids: thousands, starting in 1801. • Kuiper Belt Objects: Dozens, starting in the 1980s. ...
Winter 2006 - Cornell Astronomy
... Ever since the discovery in 1992 of a massive belt of small bodies beyond Neptune (the Kuiper Belt or the trans-Neptunian region), the status of Pluto has been in serious question. With more than a thousand trans-Neptunian objects discovered to date, it has become increasingly clear that Pluto is no ...
... Ever since the discovery in 1992 of a massive belt of small bodies beyond Neptune (the Kuiper Belt or the trans-Neptunian region), the status of Pluto has been in serious question. With more than a thousand trans-Neptunian objects discovered to date, it has become increasingly clear that Pluto is no ...
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.