Formation of the Solar System . • Questions
... • Some comets: orbital directions are not that of planets & orbits are not close to plane of planets. • 1011 - 1012 comets in loosely bound solar orbits at 50,000AU • Ejected by Jupiter into random directions • Gravitational perturbations occasionally deflect one in. • Guesstimate: 1 trillion (1012) ...
... • Some comets: orbital directions are not that of planets & orbits are not close to plane of planets. • 1011 - 1012 comets in loosely bound solar orbits at 50,000AU • Ejected by Jupiter into random directions • Gravitational perturbations occasionally deflect one in. • Guesstimate: 1 trillion (1012) ...
Excellence
... surface area and mass. White dwarfs have an extremely dense inner core, which means they have a small surface area but a large mass, which causes high temperature. Looking at the H/ R diagram you can tell that white dwarfs are not very bright (10 – 10, 000 x dimmer than our sun) and they are of spec ...
... surface area and mass. White dwarfs have an extremely dense inner core, which means they have a small surface area but a large mass, which causes high temperature. Looking at the H/ R diagram you can tell that white dwarfs are not very bright (10 – 10, 000 x dimmer than our sun) and they are of spec ...
Make a Solar System Mobile
... orbit, spacing them out. Attach the sun in the middle, and each planet on its orbit in this order, from closest to the sun to farthest: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and ...
... orbit, spacing them out. Attach the sun in the middle, and each planet on its orbit in this order, from closest to the sun to farthest: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and ...
When Stars Blow Up
... •When the temperature reaches a few MK, fusion begins •Degenerate fusion is a runaway. •All the H fuses to He and heavier elements in a soundcrossing time (a few minutes) •The star increases in brightness ~ 10,000 times •Most of the matter is ejected ...
... •When the temperature reaches a few MK, fusion begins •Degenerate fusion is a runaway. •All the H fuses to He and heavier elements in a soundcrossing time (a few minutes) •The star increases in brightness ~ 10,000 times •Most of the matter is ejected ...
Study Guide – Midterm 3
... • So light falls back. • “Schwarzschild radius” or “event horizon” = radius around mass concentration within which light can no longer escape to outside. ...
... • So light falls back. • “Schwarzschild radius” or “event horizon” = radius around mass concentration within which light can no longer escape to outside. ...
The Solar System - Dr. Hooda 6th Grade Earth Science
... • The planets are divided into two groups 2. Outer Planets – are Jupiter, Saturn, Uranus, Neptune – are larger – farther from the sun – do not have solid surfaces – Also called gas giants ...
... • The planets are divided into two groups 2. Outer Planets – are Jupiter, Saturn, Uranus, Neptune – are larger – farther from the sun – do not have solid surfaces – Also called gas giants ...
Starlight and What it Tells Us
... Radiation is Reflected from Some Other Source • The Sun Emits Black-Body Radiation, the Moon Does Not ...
... Radiation is Reflected from Some Other Source • The Sun Emits Black-Body Radiation, the Moon Does Not ...
The Ceres Connection - MIT Lincoln Laboratory
... Lost and Found Planets When Italian astronomer Giuseppe Piazzi (1000) discovered the first minor planet Ceres in 1801, European stargazers were actually looking for a “missing” major planet between Mars and Jupiter. Such an object had been predicted in 1766 by German physicist Johann Titius (1998), ...
... Lost and Found Planets When Italian astronomer Giuseppe Piazzi (1000) discovered the first minor planet Ceres in 1801, European stargazers were actually looking for a “missing” major planet between Mars and Jupiter. Such an object had been predicted in 1766 by German physicist Johann Titius (1998), ...
Study Guide
... What probes have visited Jupiter and when? Which comet crashed into Jupiter, and when? How far away from Jupiter are its four main moons? (use Jupiter’s diameter = 1) What is Jupiter’s mass compared to the Sun’s mass? Even though it contains asteroids, dwarf planets, Oort Cloud comets, a star, Kuipe ...
... What probes have visited Jupiter and when? Which comet crashed into Jupiter, and when? How far away from Jupiter are its four main moons? (use Jupiter’s diameter = 1) What is Jupiter’s mass compared to the Sun’s mass? Even though it contains asteroids, dwarf planets, Oort Cloud comets, a star, Kuipe ...
Lecture 1: Observations of planetary systems
... We reside in our own planetary system, and much of what we know about planets and their origin comes from observations of the Solar System. The Solar System comprises the Sun, eight planets, and a large number of smaller bodies (including “dwarf planets”, asteroids, comets, etc.). The eight planets ...
... We reside in our own planetary system, and much of what we know about planets and their origin comes from observations of the Solar System. The Solar System comprises the Sun, eight planets, and a large number of smaller bodies (including “dwarf planets”, asteroids, comets, etc.). The eight planets ...
Astronomy - Ascent Academies of Utah Blogging System Sites
... Earth. It's like a giant hand that reaches up from the ground, grabs your ankle and holds you down. Gravity affects the amount of force that you exert on the ground. It's like you are pushing on the ground! ...
... Earth. It's like a giant hand that reaches up from the ground, grabs your ankle and holds you down. Gravity affects the amount of force that you exert on the ground. It's like you are pushing on the ground! ...
PowerPoint - Division for Planetary Sciences
... A Planet Orbiting Two Suns • About 1000 planets have been discovered outside our own solar system • But do planets form only around single stars? About half of all stars form in groups of two or more. • NASA’s Kepler spacecraft has detected a Saturn-sized planet orbiting two stars - the first discov ...
... A Planet Orbiting Two Suns • About 1000 planets have been discovered outside our own solar system • But do planets form only around single stars? About half of all stars form in groups of two or more. • NASA’s Kepler spacecraft has detected a Saturn-sized planet orbiting two stars - the first discov ...
Lecture 1 - Introduction - University of Iowa Astronomy and
... • Astronomy allows us to understand our place in the cosmos. • Astronomy also reveals objects that stretch the imagination such as black holes, exploding stars, and giant jets of matter larger than a galaxy but moving at the speed of light. ...
... • Astronomy allows us to understand our place in the cosmos. • Astronomy also reveals objects that stretch the imagination such as black holes, exploding stars, and giant jets of matter larger than a galaxy but moving at the speed of light. ...
The Planets Handout (Download Only)
... 1. The inner planets are closer to the sun 2. Mercury is the hottest of the planets 3. Venus is the closest in size to the Earth 4. Earth is the only planet in our solar system known to harbor life. 5. Most scientists agree that there was once large amounts of water on the planet Mars. 6. The meteor ...
... 1. The inner planets are closer to the sun 2. Mercury is the hottest of the planets 3. Venus is the closest in size to the Earth 4. Earth is the only planet in our solar system known to harbor life. 5. Most scientists agree that there was once large amounts of water on the planet Mars. 6. The meteor ...
PHYS 390 Lecture 9 - Planetary atmospheres 9
... • probably once contained a large amount of H2O, which was driven out by high temperatures; atmospheric deuterium:hydrogen ratio is 0.016, compared to 0.00016 on Earth, suggesting evaporation from upper atmosphere • surface is highly volcanic, extensive lava flows in last 500 million years Earth: • ...
... • probably once contained a large amount of H2O, which was driven out by high temperatures; atmospheric deuterium:hydrogen ratio is 0.016, compared to 0.00016 on Earth, suggesting evaporation from upper atmosphere • surface is highly volcanic, extensive lava flows in last 500 million years Earth: • ...
A Short History of the Origin of Modern Astronomy What is a “Theory
... sphere Sun is on a sphere closer to Earth than stars Planets are on their own spheres closer or farther from the sun’s ...
... sphere Sun is on a sphere closer to Earth than stars Planets are on their own spheres closer or farther from the sun’s ...
Day_31
... Uranus and Neptune Uranus/Neptune • Almost featureless as viewed from Earth. • More detail seen from spacecraft or infrared observations from the Hubble Space Telescope. • Weak banding. • Small, scattered bright or dark clouds. • Transient large storms (Great Dark Spot on Neptune). ...
... Uranus and Neptune Uranus/Neptune • Almost featureless as viewed from Earth. • More detail seen from spacecraft or infrared observations from the Hubble Space Telescope. • Weak banding. • Small, scattered bright or dark clouds. • Transient large storms (Great Dark Spot on Neptune). ...
Anomalous diffusion in generalised Ornstein
... Jupiter size planets collide, large amounts of debris will be scattered into orbits which will reach the star. The first fragments will reach the star in a fraction of the orbital period (perhaps 1-10 years), and material will continue to reach the star at a significant rate for several multiples of ...
... Jupiter size planets collide, large amounts of debris will be scattered into orbits which will reach the star. The first fragments will reach the star in a fraction of the orbital period (perhaps 1-10 years), and material will continue to reach the star at a significant rate for several multiples of ...
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 ...
Lecture18 - UCSB Physics
... • C) Asteroids orbit the Sun continuously, whereas all comets approach the Sun’s vicinity only once before leaving the Solar System • D) Come orbits are highly elliptical and at random inclinations to the ecliptic plane, whereas asteroids have circular orbits in the ecliptic plane ...
... • C) Asteroids orbit the Sun continuously, whereas all comets approach the Sun’s vicinity only once before leaving the Solar System • D) Come orbits are highly elliptical and at random inclinations to the ecliptic plane, whereas asteroids have circular orbits in the ecliptic plane ...
Lecture18
... •C) Asteroids orbit the Sun continuously, whereas all comets approach the Sun’s vicinity only once before leaving the Solar System •D) Come orbits are highly elliptical and at random inclinations to the ecliptic plane, whereas asteroids have circular orbits in the ecliptic plane ...
... •C) Asteroids orbit the Sun continuously, whereas all comets approach the Sun’s vicinity only once before leaving the Solar System •D) Come orbits are highly elliptical and at random inclinations to the ecliptic plane, whereas asteroids have circular orbits in the ecliptic plane ...
Definition of planet
The definition of planet, since the word was coined by the ancient Greeks, has included within its scope a wide range of celestial bodies. Greek astronomers employed the term asteres planetai (ἀστέρες πλανῆται), ""wandering stars"", for star-like objects which apparently moved over the sky. Over the millennia, the term has included a variety of different objects, from the Sun and the Moon to satellites and asteroids.By the end of the 19th century the word planet, though it had yet to be defined, had become a working term applied only to a small set of objects in the Solar System. After 1992, however, astronomers began to discover many additional objects beyond the orbit of Neptune, as well as hundreds of objects orbiting other stars. These discoveries not only increased the number of potential planets, but also expanded their variety and peculiarity. Some were nearly large enough to be stars, while others were smaller than Earth's moon. These discoveries challenged long-perceived notions of what a planet could be.The issue of a clear definition for planet came to a head in 2005 with the discovery of the trans-Neptunian object Eris, a body more massive than the smallest then-accepted planet, Pluto. In its 2006 response, the International Astronomical Union (IAU), recognised by astronomers as the world body responsible for resolving issues of nomenclature, released its decision on the matter. This definition, which applies only to the Solar System, states that a planet is a body that orbits the Sun, is massive enough for its own gravity to make it round, and has ""cleared its neighbourhood"" of smaller objects around its orbit. Under this new definition, Pluto and the other trans-Neptunian objects do not qualify as planets. The IAU's decision has not resolved all controversies, and while many scientists have accepted the definition, some in the astronomical community have rejected it outright.