The Universe, Solar System, and Planets I
... percent of all species then living on Earth, is known as the K-T event (Cretaceous-Tertiary Mass Extinction event). Geologists and paleontologists often entertain the idea of a large asteroid or comet impacting the Earth as the culprit. Besides the firestorms, tidal waves, earthquakes, and hurricane ...
... percent of all species then living on Earth, is known as the K-T event (Cretaceous-Tertiary Mass Extinction event). Geologists and paleontologists often entertain the idea of a large asteroid or comet impacting the Earth as the culprit. Besides the firestorms, tidal waves, earthquakes, and hurricane ...
Boonesborough Days - Tri
... Mars, with one or more missions launching every twenty-six months. We are directing more of our attention to the moons of the giant planets as we see intriguing signs of both water and dynamism on their surfaces, knowing that on Earth, where there is water and energy there is also life. We are progr ...
... Mars, with one or more missions launching every twenty-six months. We are directing more of our attention to the moons of the giant planets as we see intriguing signs of both water and dynamism on their surfaces, knowing that on Earth, where there is water and energy there is also life. We are progr ...
Navigating by the Stars
... The orbits of the planets are ellipses with the Sun at one of the foci. This is now called Kepler's First Law or The Law of Ellipses. What is an ellipse? Glad you asked. An ellipse is a closed, curved shape that is defined by two foci. An ellipse is a like a flattened circle. In fact, if both of th ...
... The orbits of the planets are ellipses with the Sun at one of the foci. This is now called Kepler's First Law or The Law of Ellipses. What is an ellipse? Glad you asked. An ellipse is a closed, curved shape that is defined by two foci. An ellipse is a like a flattened circle. In fact, if both of th ...
How much do we make
... Revolving and Rotating Our Solar System is made up of one star, planets, moons, asteroids and comets. We used to have nine planets but now we only have eight. Most diagrams still show Pluto. Pluto doesn't fit with the definition of a planet – it is too small. One part of the definition of a planet i ...
... Revolving and Rotating Our Solar System is made up of one star, planets, moons, asteroids and comets. We used to have nine planets but now we only have eight. Most diagrams still show Pluto. Pluto doesn't fit with the definition of a planet – it is too small. One part of the definition of a planet i ...
Lecture 1: Our Solar System
... orbit of Neptune, where it resided from 1979 thru February 1999 • Moon (Charon) discovered in ...
... orbit of Neptune, where it resided from 1979 thru February 1999 • Moon (Charon) discovered in ...
Revolving and Rotating
... Revolving and Rotating Our Solar System is made up of one star, planets, moons, asteroids and comets. We used to have nine planets but now we only have eight. Most diagrams still show Pluto. Pluto doesn't fit with the definition of a planet – it is too small. One part of the definition of a planet i ...
... Revolving and Rotating Our Solar System is made up of one star, planets, moons, asteroids and comets. We used to have nine planets but now we only have eight. Most diagrams still show Pluto. Pluto doesn't fit with the definition of a planet – it is too small. One part of the definition of a planet i ...
Solar System Formation
... that a) has enough mass to form itself into a spherical shape and b) has cleared its immediate neighborhood of all smaller objects. There are eight known planets that meets this qualification: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. ...
... that a) has enough mass to form itself into a spherical shape and b) has cleared its immediate neighborhood of all smaller objects. There are eight known planets that meets this qualification: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. ...
Solar System - eNetLearning
... that a) has enough mass to form itself into a spherical shape and b) has cleared its immediate neighborhood of all smaller objects. There are eight known planets that meets this qualification: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. ...
... that a) has enough mass to form itself into a spherical shape and b) has cleared its immediate neighborhood of all smaller objects. There are eight known planets that meets this qualification: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. ...
The Dead Guys 06
... – Saw that the milky way was a collection of stars – Discover sunspots • His discoveries proved the Copernican system which states that the earth and other planets revolve around the sun. (Heliocentric) ...
... – Saw that the milky way was a collection of stars – Discover sunspots • His discoveries proved the Copernican system which states that the earth and other planets revolve around the sun. (Heliocentric) ...
Approximately 14 billion years ago, all matter and energy was
... Death of Medium-Mass Stars • Stars with masses similar to the sun evolve in essentially the same way as low-mass stars. • During their collapse from red giants to white dwarfs, medium-mass stars are thought to cast off their outer layer, creating an expanding round cloud of gas called ...
... Death of Medium-Mass Stars • Stars with masses similar to the sun evolve in essentially the same way as low-mass stars. • During their collapse from red giants to white dwarfs, medium-mass stars are thought to cast off their outer layer, creating an expanding round cloud of gas called ...
CH23
... • Small bodies – largest (Ceres) is about 620 miles in diameter • Some have very eccentric orbits • Many of the recent impacts on the Moon and Earth were collisions with asteroids • Irregular shapes except largest half dozen or so, which are spherical • A few visible to naked eye when brightest ...
... • Small bodies – largest (Ceres) is about 620 miles in diameter • Some have very eccentric orbits • Many of the recent impacts on the Moon and Earth were collisions with asteroids • Irregular shapes except largest half dozen or so, which are spherical • A few visible to naked eye when brightest ...
File
... the Kuiper belt and scattered disc, linked populations of transNeptunian objects composed mostly of ices. Within these populations are several dozen to more than ten thousand objects that may be large enough to have been rounded by their own gravity. Such objects are referred to as dwarf planets. Id ...
... the Kuiper belt and scattered disc, linked populations of transNeptunian objects composed mostly of ices. Within these populations are several dozen to more than ten thousand objects that may be large enough to have been rounded by their own gravity. Such objects are referred to as dwarf planets. Id ...
The Solar System
... and nine known planets and the moons that orbit those planets. • The force of gravity keeps planets in orbit around the sun. ...
... and nine known planets and the moons that orbit those planets. • The force of gravity keeps planets in orbit around the sun. ...
Preface 1 PDF
... planets? I can state that the story of the twin sister planets is “simple in principle but somewhat complex in detail”. In my opinion, the complexities, including the probability of a favorable outcome for certain processes, outweigh the simplicities. A major theme of this book is that our twin sist ...
... planets? I can state that the story of the twin sister planets is “simple in principle but somewhat complex in detail”. In my opinion, the complexities, including the probability of a favorable outcome for certain processes, outweigh the simplicities. A major theme of this book is that our twin sist ...
Nebular Theory
... Contraction: The cloud starts collapsing under its own gravity; over 100,000 years, it shrinks down to 100 AU, heats up (thermal energy), and compresses in the center. Accretion disk: The matter around the center spins up and flattens into a disk, while heat vaporizes the dust. Protostar: Forms in t ...
... Contraction: The cloud starts collapsing under its own gravity; over 100,000 years, it shrinks down to 100 AU, heats up (thermal energy), and compresses in the center. Accretion disk: The matter around the center spins up and flattens into a disk, while heat vaporizes the dust. Protostar: Forms in t ...
Chapter 29 Our Solar System
... c. Label, define and describe the composition of the parts of a comet including: coma, nucleus, tail, head. Describe how, when, and why the tails are formed, and which direction they point. d. Discuss the location of the two main clusters of comets, including how far they are from the sun in astrono ...
... c. Label, define and describe the composition of the parts of a comet including: coma, nucleus, tail, head. Describe how, when, and why the tails are formed, and which direction they point. d. Discuss the location of the two main clusters of comets, including how far they are from the sun in astrono ...
Unit 5: Review Game Questions
... disk and heated up. Planetesimals were formed by accretion of small particles that collided & stuck together growing larger. The greater gravity of planetesimals attracted more materials and they grew larger, forming planets. Leftover debris became asteroids and comets. All the orbital and rotationa ...
... disk and heated up. Planetesimals were formed by accretion of small particles that collided & stuck together growing larger. The greater gravity of planetesimals attracted more materials and they grew larger, forming planets. Leftover debris became asteroids and comets. All the orbital and rotationa ...
Document
... Where are Saturn, Uranus, and Neptune? They're far away, high like the Moon. A telescope would be the best For spotting Pluto and the rest. I look for planets in the sky! Дети угадывают, и на слайде появляется слово Space. (слайд 1) Учитель предлагает найти названия планет в стихотворении. Дети назы ...
... Where are Saturn, Uranus, and Neptune? They're far away, high like the Moon. A telescope would be the best For spotting Pluto and the rest. I look for planets in the sky! Дети угадывают, и на слайде появляется слово Space. (слайд 1) Учитель предлагает найти названия планет в стихотворении. Дети назы ...
What do the stars tell us?
... is Pluto no longer a Planet? • 1930: Pluto was thought to be perturbing Neptune. It isn’t. • 1978: Pluto has a moon; this means Pluto is even smaller. • 2005: There is a body out there that is bigger than Pluto (now called Eris). • 2006: Either Pluto is a planet, and so is Eris, and so is Ceres, and ...
... is Pluto no longer a Planet? • 1930: Pluto was thought to be perturbing Neptune. It isn’t. • 1978: Pluto has a moon; this means Pluto is even smaller. • 2005: There is a body out there that is bigger than Pluto (now called Eris). • 2006: Either Pluto is a planet, and so is Eris, and so is Ceres, and ...
Chapter 24: The Solar System Study Guide
... 1. The inner planets are also known as gas giants. 2. It takes the inner planets less time to orbit the Earth than it takes the outer planets. 3. Mercury’s lack of an atmosphere causes it to experience extreme day and night temperatures. 4. Mercury has two moons. 5. Mercury has many craters on its s ...
... 1. The inner planets are also known as gas giants. 2. It takes the inner planets less time to orbit the Earth than it takes the outer planets. 3. Mercury’s lack of an atmosphere causes it to experience extreme day and night temperatures. 4. Mercury has two moons. 5. Mercury has many craters on its s ...
Name
... D) Jupiter-sized planets are radioactive E) Jupiter-sized planets have hotter surface temperatures 17) The density of a material is 4,100 kg/m3. What is the density in g/cm3? A) B) C) D) E) ...
... D) Jupiter-sized planets are radioactive E) Jupiter-sized planets have hotter surface temperatures 17) The density of a material is 4,100 kg/m3. What is the density in g/cm3? A) B) C) D) E) ...
SolarSystemScaleProject_05
... on a bicycle moving at a velocity of 20 km/hr? How long would that same trip take if you walked at a steady pace of 5 km/hr? What general conclusion can you make based on these calculations? 8. Use the distance between each planet and the Sun to calculate the circumference (C) of each orbit. Compare ...
... on a bicycle moving at a velocity of 20 km/hr? How long would that same trip take if you walked at a steady pace of 5 km/hr? What general conclusion can you make based on these calculations? 8. Use the distance between each planet and the Sun to calculate the circumference (C) of each orbit. Compare ...
HABITABLE PLANETS For every star with planets, how many of
... with life, then they are the most common abodes for life in the universe, and we should be searching for signals from them. Also, they have very long main sequence lifetimes, so you could have civilizations as old as 1015 billion years on planets orbiting these stars. Conclusion: avg. number of habi ...
... with life, then they are the most common abodes for life in the universe, and we should be searching for signals from them. Also, they have very long main sequence lifetimes, so you could have civilizations as old as 1015 billion years on planets orbiting these stars. Conclusion: avg. number of habi ...
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.