
Solar System has 8 planets instead of 9 — IAU official vote
... and brought three other objects into the cosmic club. Pluto has been considered a planet since its discovery in 1930 by the American Clyde Tombaugh. The ninth planet will now effectively be airbrushed out of school and university textbooks. “The eight planets are Mercury, Venus, Earth, Mars, Jupiter ...
... and brought three other objects into the cosmic club. Pluto has been considered a planet since its discovery in 1930 by the American Clyde Tombaugh. The ninth planet will now effectively be airbrushed out of school and university textbooks. “The eight planets are Mercury, Venus, Earth, Mars, Jupiter ...
E8B4_CRT_CR_MSTIPS_FinalS
... A. six planets and their moons. B. seven planets and their moons. C. eight planets and their moons. D. eleven planets and their moons. 8. The Sun is part of a group of stars that are relatively close together, this group is called a A. Galaxy. B. Solar System. C. Local cluster. D. Universe. Depth of ...
... A. six planets and their moons. B. seven planets and their moons. C. eight planets and their moons. D. eleven planets and their moons. 8. The Sun is part of a group of stars that are relatively close together, this group is called a A. Galaxy. B. Solar System. C. Local cluster. D. Universe. Depth of ...
Big Bang Theory
... In 1965 this radiation was discovered In 2003 astronomers studying the CBR determined the universe is 13.7 billion years old ...
... In 1965 this radiation was discovered In 2003 astronomers studying the CBR determined the universe is 13.7 billion years old ...
AST 301 Fall 2007 Review for Exam 3 This exam covers only
... the material by telling a friend (imaginary or not) a narrative that begins with the collapse of a big gas cloud under its own gravity and ends up with the solar system as it is today, filling in all the intermediate steps and the explaining the physical processes that are thought to be responsible ...
... the material by telling a friend (imaginary or not) a narrative that begins with the collapse of a big gas cloud under its own gravity and ends up with the solar system as it is today, filling in all the intermediate steps and the explaining the physical processes that are thought to be responsible ...
A Red Giant - Cloudfront.net
... Stars like our Sun Stars with masses similar to our Sun fuse at a rate that allows them to “live” as mainsequence stars for about 10 billion years. Then they run out of Hydrogen in their core Hydrostatic Equilibrium is lost… They Shrink a bit And begin to fuse Hydrogen into Helium in a shell outsid ...
... Stars like our Sun Stars with masses similar to our Sun fuse at a rate that allows them to “live” as mainsequence stars for about 10 billion years. Then they run out of Hydrogen in their core Hydrostatic Equilibrium is lost… They Shrink a bit And begin to fuse Hydrogen into Helium in a shell outsid ...
The Sun
... Forces in Balance • Nuclear fusion in the sun’s core produces an incredible amount of energy. – This energy causes gas ions within the sun to move very fast, generating a tremendous pressure pushing outward from the core. – This pressure would cause the sun to explode if it weren’t balanced by an e ...
... Forces in Balance • Nuclear fusion in the sun’s core produces an incredible amount of energy. – This energy causes gas ions within the sun to move very fast, generating a tremendous pressure pushing outward from the core. – This pressure would cause the sun to explode if it weren’t balanced by an e ...
Types of Planets and Stars
... vary in size, mass, and brightness, but they all convert hydrogen into helium, also known as nuclear fusion. While our sun will spend 10 billion on its main sequence, a star ten times as massive will stick around for only 20 million years. Red Dwarf -- most common stars in the universe. These star ...
... vary in size, mass, and brightness, but they all convert hydrogen into helium, also known as nuclear fusion. While our sun will spend 10 billion on its main sequence, a star ten times as massive will stick around for only 20 million years. Red Dwarf -- most common stars in the universe. These star ...
Cosmic Landscape Introduction Study Notes About how
... What do astronomers mean when they say that the Sun is a fairly typical star? Some stars are many times more massive and some many times less massive than the Sun. The Sun orbits the center of the Milky Way at a much higher speed than would be expected based on the mass of visible stars. What do ast ...
... What do astronomers mean when they say that the Sun is a fairly typical star? Some stars are many times more massive and some many times less massive than the Sun. The Sun orbits the center of the Milky Way at a much higher speed than would be expected based on the mass of visible stars. What do ast ...
Slide 1
... 2. Jovian planets (the gas giants): -Jupiter, Saturn, Uranus, Neptune ________________________________________________ -larger and further from Sun ________________________________________________ -mostly liquid and gas (hydrogen and helium) ________________________________________________ - are le ...
... 2. Jovian planets (the gas giants): -Jupiter, Saturn, Uranus, Neptune ________________________________________________ -larger and further from Sun ________________________________________________ -mostly liquid and gas (hydrogen and helium) ________________________________________________ - are le ...
answers
... 2. Name the American agency that sends stuff into space [NASA] 3. How many guide laws are there? [6] 4. Who was the first person to walk on the moon [Neil Armstrong] 5. Name a constellation [there are lots of these, such as Cassiopeia, Ursa Major, Orion] 6. Name a constellation NO REPEATS – THEY HAV ...
... 2. Name the American agency that sends stuff into space [NASA] 3. How many guide laws are there? [6] 4. Who was the first person to walk on the moon [Neil Armstrong] 5. Name a constellation [there are lots of these, such as Cassiopeia, Ursa Major, Orion] 6. Name a constellation NO REPEATS – THEY HAV ...
Science 9: Unit 4 Review
... galaxies was shifted toward the red part of the spectrum. What explanation did he give for this? ...
... galaxies was shifted toward the red part of the spectrum. What explanation did he give for this? ...
Solar system junior
... Solar system junior The Sun, a star that is much larger than the Earth, illuminates us with its light and warms us with its heat. For this reason it is important for all living beings because it enables the life of plants, animals and humans. The Sun is part of the Solar System together with eight o ...
... Solar system junior The Sun, a star that is much larger than the Earth, illuminates us with its light and warms us with its heat. For this reason it is important for all living beings because it enables the life of plants, animals and humans. The Sun is part of the Solar System together with eight o ...
Astronomy 100 Homework #2 Solutions 1, Problem 3‐27 (2 pts
... more quickly than Saturn. Because the semimajor axis is smaller, the orbital period P = a3/2 will be smaller. 2. Problem 3‐40 (2 pts). The recently discovered object Sedna orbits our sun beyond Pluto, at an average distance of 509 AU. What is its orbital period? a=509 AU, P2 = a3. P = a3/2 = 5 ...
... more quickly than Saturn. Because the semimajor axis is smaller, the orbital period P = a3/2 will be smaller. 2. Problem 3‐40 (2 pts). The recently discovered object Sedna orbits our sun beyond Pluto, at an average distance of 509 AU. What is its orbital period? a=509 AU, P2 = a3. P = a3/2 = 5 ...
Comets, Asteroids, and Meteors
... Mars and Jupiter. They named these objects Ceres, Pallas, Juno, and Vesta. Over the next 80 years, astronomers found over 300 more. These rocky objects, called asteroids, are too small and too numerous to be considered planets. Most asteroids revolve around the sun between the orbits of Mars and Jup ...
... Mars and Jupiter. They named these objects Ceres, Pallas, Juno, and Vesta. Over the next 80 years, astronomers found over 300 more. These rocky objects, called asteroids, are too small and too numerous to be considered planets. Most asteroids revolve around the sun between the orbits of Mars and Jup ...
Test 2 Overview
... Solar system formed out of a "whirlpool" in a "universal fluid". Planets formed out of eddies in the fluid. Sun formed at center. Planets in cooler regions. Cloud called "Solar Nebula". This is pre-Newton and modern science. But basic idea correct, and the theory evolved as science advanced, as we'l ...
... Solar system formed out of a "whirlpool" in a "universal fluid". Planets formed out of eddies in the fluid. Sun formed at center. Planets in cooler regions. Cloud called "Solar Nebula". This is pre-Newton and modern science. But basic idea correct, and the theory evolved as science advanced, as we'l ...
Rusty Rocket`s Last Blast
... foundations of physics. STANDARD 6 – THE UNIVERSE Conceptual Strand 6: The cosmos is vast and explored well enough to know its basic structure and operational principles. STANDARD 11 – MOTION Conceptual Strand 11: Objects move in ways that can be observed, described, predicted, and measured. STANDAR ...
... foundations of physics. STANDARD 6 – THE UNIVERSE Conceptual Strand 6: The cosmos is vast and explored well enough to know its basic structure and operational principles. STANDARD 11 – MOTION Conceptual Strand 11: Objects move in ways that can be observed, described, predicted, and measured. STANDAR ...
Planet Matchup - Digital Task Card 1
... 9. This is another gas giant, and the 8th planet from the sun. 10. This second-largest planet is so light that if there were a bathtub big enough, it would float in water. Copyright © 2011 Savetz Publishing Inc. • www.InstantWorksheets.net ...
... 9. This is another gas giant, and the 8th planet from the sun. 10. This second-largest planet is so light that if there were a bathtub big enough, it would float in water. Copyright © 2011 Savetz Publishing Inc. • www.InstantWorksheets.net ...
Astronomical history
... the people about how in religion “god” had made the earth perfect everything revolving around them. (b) Where did Ptolemy place the stars in his model? In this model Ptolemy places the stars outside of the revolving planets. The sun is an example being the first star in our solar system and being th ...
... the people about how in religion “god” had made the earth perfect everything revolving around them. (b) Where did Ptolemy place the stars in his model? In this model Ptolemy places the stars outside of the revolving planets. The sun is an example being the first star in our solar system and being th ...
We Are All Star Dust - High School of Language and Innovation
... • Temperature inside of the core of the Sun = 27,000,000°F • Most of the universe is made from hydrogen and helium ...
... • Temperature inside of the core of the Sun = 27,000,000°F • Most of the universe is made from hydrogen and helium ...
Planet Powerpoint
... These planets are called the gas giants Jupiter, Saturn, Uranus, and Neptune are much larger than earth and do NOT have solid surfaces Strong gravity keeps gases from escaping so they have deep atmospheres May have a center or core but hard to explore because of the great pressure of the atmos ...
... These planets are called the gas giants Jupiter, Saturn, Uranus, and Neptune are much larger than earth and do NOT have solid surfaces Strong gravity keeps gases from escaping so they have deep atmospheres May have a center or core but hard to explore because of the great pressure of the atmos ...
PHYS 200 - Understanding the Universe
... • Report on: what makes up the solar system, what is the physical difference between planets and stars, whether stars live forever, and what makes up our Milky Way Galaxy. • Comprehend that cosmic bodies are always in motion relative to each other. That for example the relative motion of the Earth, ...
... • Report on: what makes up the solar system, what is the physical difference between planets and stars, whether stars live forever, and what makes up our Milky Way Galaxy. • Comprehend that cosmic bodies are always in motion relative to each other. That for example the relative motion of the Earth, ...
Review3-2016
... Asteroid, meteorites and comets. What is the asteroid belt, how we believe it was formed and where it is located? What are the size distribution of the asteroids. Compare the size of the largest asteroid with the planet Pluto. What is the composition of a meteorite. What is the structure of a comet? ...
... Asteroid, meteorites and comets. What is the asteroid belt, how we believe it was formed and where it is located? What are the size distribution of the asteroids. Compare the size of the largest asteroid with the planet Pluto. What is the composition of a meteorite. What is the structure of a comet? ...
Other Planetary Systems
... …in many of the planetary systems detected so far, we find big, massive planets quite close to the parent stars (especially with the ‘wobble’ technique; using transits is better able to find smaller planets.) It will take many years, and improving technology, to allow the confirmed detection of a So ...
... …in many of the planetary systems detected so far, we find big, massive planets quite close to the parent stars (especially with the ‘wobble’ technique; using transits is better able to find smaller planets.) It will take many years, and improving technology, to allow the confirmed detection of a So ...
Solar System

The Solar System comprises the Sun and the planetary system that orbits it, either directly or indirectly. Of those objects that orbit the Sun directly, the largest eight are the planets, with the remainder being significantly smaller objects, such as dwarf planets and small Solar System bodies such as comets and asteroids. Of those that orbit the Sun indirectly, two are larger than the smallest planet.The Solar System formed 4.6 billion years ago from the gravitational collapse of a giant interstellar molecular cloud. The vast majority of the system's mass is in the Sun, with most of the remaining mass contained in Jupiter. The four smaller inner planets, Mercury, Venus, Earth and Mars, are terrestrial planets, being primarily composed of rock and metal. The four outer planets are giant planets, being substantially more massive than the terrestrials. The two largest, Jupiter and Saturn, are gas giants, being composed mainly of hydrogen and helium; the two outermost planets, Uranus and Neptune, are ice giants, being composed largely of substances with relatively high melting points compared with hydrogen and helium, called ices, such as water, ammonia and methane. All planets have almost circular orbits that lie within a nearly flat disc called the ecliptic.The Solar System also contains smaller objects. The asteroid belt, which lies between Mars and Jupiter, mostly contains objects composed, like the terrestrial planets, of rock and metal. Beyond Neptune's orbit lie the Kuiper belt and scattered disc, populations of trans-Neptunian objects composed mostly of ices, and beyond them a newly discovered population of sednoids. Within these populations are several dozen to possibly tens of thousands of objects large enough to have been rounded by their own gravity. Such objects are categorized as dwarf planets. Identified dwarf planets include the asteroid Ceres and the trans-Neptunian objects Pluto and Eris. In addition to these two regions, various other small-body populations, including comets, centaurs and interplanetary dust, freely travel between regions. Six of the planets, at least three of the dwarf planets, and many of the smaller bodies are orbited by natural satellites, usually termed ""moons"" after the Moon. Each of the outer planets is encircled by planetary rings of dust and other small objects.The solar wind, a stream of charged particles flowing outwards from the Sun, creates a bubble-like region in the interstellar medium known as the heliosphere. The heliopause is the point at which pressure from the solar wind is equal to the opposing pressure of interstellar wind; it extends out to the edge of the scattered disc. The Oort cloud, which is believed to be the source for long-period comets, may also exist at a distance roughly a thousand times further than the heliosphere. The Solar System is located in the Orion Arm, 26,000 light-years from the center of the Milky Way.