
Worksheet 1
... R. Microscopic solid dust particles in interstellar space S. An object that orbits the Sun and is massive enough that its gravity compresses it into an approximately spherical shape. However, it has not swept its orbital region clear of other objects of comparable mass T. A small, generally rocky, s ...
... R. Microscopic solid dust particles in interstellar space S. An object that orbits the Sun and is massive enough that its gravity compresses it into an approximately spherical shape. However, it has not swept its orbital region clear of other objects of comparable mass T. A small, generally rocky, s ...
Questions for this book (Word format)
... It took astronomers many years to realise that some of the “fuzzy patches” or “nebulae” in the night sky are actually galaxies like the Milky Way. One reason for this was that only some of the objects catalogued as “nebulae” are actually galaxies. List at least three types of nebula which are not ex ...
... It took astronomers many years to realise that some of the “fuzzy patches” or “nebulae” in the night sky are actually galaxies like the Milky Way. One reason for this was that only some of the objects catalogued as “nebulae” are actually galaxies. List at least three types of nebula which are not ex ...
Student Exploration Sheet: Growing Plants
... distance from the Sun increases? [1 mark] ______________________________________ _________________________________________________________________________ 2. Observe: Click Play, and observe the orbits of all the planets. What is the relationship between the speed of planets’ orbit and their distanc ...
... distance from the Sun increases? [1 mark] ______________________________________ _________________________________________________________________________ 2. Observe: Click Play, and observe the orbits of all the planets. What is the relationship between the speed of planets’ orbit and their distanc ...
the solar system - Title: Brains at school
... It has about 5 billion years It is at the middle of its life: it will become too huge and too hot, then it will explode and disappear. It consists of two gases: hydrogen and helium, producing thermonuclear reactions and giving out light and ...
... It has about 5 billion years It is at the middle of its life: it will become too huge and too hot, then it will explode and disappear. It consists of two gases: hydrogen and helium, producing thermonuclear reactions and giving out light and ...
Slow lane to the planets
... orbit (2) to an outer planet (orbit 3). Note that unless it brakes at its destination the craft will keep on going until it returns to its starting point. reach the most distant worlds. A Hohmann trajectory from Earth to Mars would take about nine months, but from Earth to Saturn would take more tha ...
... orbit (2) to an outer planet (orbit 3). Note that unless it brakes at its destination the craft will keep on going until it returns to its starting point. reach the most distant worlds. A Hohmann trajectory from Earth to Mars would take about nine months, but from Earth to Saturn would take more tha ...
How is energy stored in atoms? Energy Level Transitions A Simple
... the Solar System LectureTutorial: Pg. 111-112 • Work with a partner or two • Read directions and answer all questions carefully. Take time to understand it now! • Come to a consensus answer you all agree on before moving on to the next question. ...
... the Solar System LectureTutorial: Pg. 111-112 • Work with a partner or two • Read directions and answer all questions carefully. Take time to understand it now! • Come to a consensus answer you all agree on before moving on to the next question. ...
b. 248 years
... 2. If you wanted to view the stars in the night sky, would you use… a. an electron microscope. ...
... 2. If you wanted to view the stars in the night sky, would you use… a. an electron microscope. ...
Temperature and Formation of Our Solar System
... Freezing point of water = 273K. Jupiter, Saturn, Uranus, Neptune, and Pluto all formed at temperatures colder than this. ...
... Freezing point of water = 273K. Jupiter, Saturn, Uranus, Neptune, and Pluto all formed at temperatures colder than this. ...
The Solar System
... • The outer planets: Jupiter, Saturn, Uranus, Neptune, and Pluto. They are huge, mostly gaseous, ringed, and have many moons The exception is Pluto, the dwarf planet, which is small, rocky, and has one large moon plus two tiny ones. ...
... • The outer planets: Jupiter, Saturn, Uranus, Neptune, and Pluto. They are huge, mostly gaseous, ringed, and have many moons The exception is Pluto, the dwarf planet, which is small, rocky, and has one large moon plus two tiny ones. ...
Exoplanets. I
... • r is the radius of the orbit • P is the orbital period • V is the orbital velocity How fast does the star “wobble”? Kepler’s 3rd law: P2 = a3 a ~ rp (M* >> Mp) r* = mp/m* rp (center of mass) ...
... • r is the radius of the orbit • P is the orbital period • V is the orbital velocity How fast does the star “wobble”? Kepler’s 3rd law: P2 = a3 a ~ rp (M* >> Mp) r* = mp/m* rp (center of mass) ...
Mercury Mercury is a dead planet and the
... Saturn is the most distant planet visible to the naked eye. Like Jupiter, it has no surface to walk on. Its frozen slushy atmosphere, made mostly of hydrogen and helium gas, forms faint bands ...
... Saturn is the most distant planet visible to the naked eye. Like Jupiter, it has no surface to walk on. Its frozen slushy atmosphere, made mostly of hydrogen and helium gas, forms faint bands ...
Lecture2 - University of Waterloo
... Distances to exterior planets • Exterior planets can be found anywhere in the zodiacal belt • The true orbital period of the planet (sidereal period) tells how long it takes the planet to return to point P. • Observe the angles PES(initially) and PES (one superior planet period later). • The angle ...
... Distances to exterior planets • Exterior planets can be found anywhere in the zodiacal belt • The true orbital period of the planet (sidereal period) tells how long it takes the planet to return to point P. • Observe the angles PES(initially) and PES (one superior planet period later). • The angle ...
ExamView - Untitled.tst
... 1. In a heliocentric system, Earth revolves around a. Mars. b. the stars. c. the moon. d. the sun. 2. The heliocentric system gained support when Galileo observed that a. one side of the moon always faces Earth. b. most of the smaller planets are closer to the sun. c. Venus goes through phases simil ...
... 1. In a heliocentric system, Earth revolves around a. Mars. b. the stars. c. the moon. d. the sun. 2. The heliocentric system gained support when Galileo observed that a. one side of the moon always faces Earth. b. most of the smaller planets are closer to the sun. c. Venus goes through phases simil ...
The Planets: An Overview
... • Large cyclonic “storms” similar to Jupiter’s Great Red Spot, although smaller, occur in Saturn’s atmosphere. Saturn’s Rings • Until the discovery that Jupiter, Uranus, and Neptune have ring systems, this phenomenon was thought to be unique to Saturn. • Most rings fall into one of two categories ...
... • Large cyclonic “storms” similar to Jupiter’s Great Red Spot, although smaller, occur in Saturn’s atmosphere. Saturn’s Rings • Until the discovery that Jupiter, Uranus, and Neptune have ring systems, this phenomenon was thought to be unique to Saturn. • Most rings fall into one of two categories ...
Document
... Asteroids • Asteroids are small and rocky objects orbiting the Sun, also called minor planets • Asteroids belt: most asteroids orbit the Sun at distance between 2 to 3.5 AU, between the orbits between Mars and Jupiter • They are thousands of kilometer-sized asteroids and millions of meter-sized ast ...
... Asteroids • Asteroids are small and rocky objects orbiting the Sun, also called minor planets • Asteroids belt: most asteroids orbit the Sun at distance between 2 to 3.5 AU, between the orbits between Mars and Jupiter • They are thousands of kilometer-sized asteroids and millions of meter-sized ast ...
Solar_System - UF :: Astronomy
... Nebular Theory for Solar System formation Our sun and the planets began from a cloud of dust and gas (nebula) As the cloud contracts under its own gravity, the Sun is formed at the ...
... Nebular Theory for Solar System formation Our sun and the planets began from a cloud of dust and gas (nebula) As the cloud contracts under its own gravity, the Sun is formed at the ...
Media Release
... Jupiter migration in the early Solar System Jupiter’s orbital migration in its early history may explain why the structure of the Solar System differs from most extrasolar systems, according to a study. The Solar System, with low-mass inner planets relatively far from the Sun, may be an anomaly comp ...
... Jupiter migration in the early Solar System Jupiter’s orbital migration in its early history may explain why the structure of the Solar System differs from most extrasolar systems, according to a study. The Solar System, with low-mass inner planets relatively far from the Sun, may be an anomaly comp ...
Name Class Date
... 22. Saturn, like the planet ______________________, is made up almost entirely of hydrogen and helium and has a rocky, iron core. 23. Saturn is the least ______________________ planet in the solar system. 24. Saturn is known for its ______________________, which are two times the planet’s diameter. ...
... 22. Saturn, like the planet ______________________, is made up almost entirely of hydrogen and helium and has a rocky, iron core. 23. Saturn is the least ______________________ planet in the solar system. 24. Saturn is known for its ______________________, which are two times the planet’s diameter. ...
Day-26
... the mass of Jupiter. Some of these orbit close to their stars and are called hot Jupiters. It is easier to find these very large planets due to the greater “wobble” they cause for their stars. ...
... the mass of Jupiter. Some of these orbit close to their stars and are called hot Jupiters. It is easier to find these very large planets due to the greater “wobble” they cause for their stars. ...
Solar system intro and formation
... Outer parts cooler: ices form (but still much gas), also ice "mantles" on dust grains => much more solid material for accretion => larger planetesimals => more gravity => even more material. Jovian solid cores ~ 10-15 MEarth . Strong gravity => swept up and retained large gas envelopes. ...
... Outer parts cooler: ices form (but still much gas), also ice "mantles" on dust grains => much more solid material for accretion => larger planetesimals => more gravity => even more material. Jovian solid cores ~ 10-15 MEarth . Strong gravity => swept up and retained large gas envelopes. ...
Solar System - wikithurston
... If you moved to Mercury you would way a lot less. If you wayed 70 pounds on Earth you would way 27 pounds on Mercury. It takes Mars 686.98 days to orbit the Sun. Mars excites because its mild temperament is more like the Earth’s than any of the other planets. ...
... If you moved to Mercury you would way a lot less. If you wayed 70 pounds on Earth you would way 27 pounds on Mercury. It takes Mars 686.98 days to orbit the Sun. Mars excites because its mild temperament is more like the Earth’s than any of the other planets. ...
Ch. 4 review
... The planetary system is highly differentiated. Asteroids are very old, and not similar to terrestrial planets or Jovian planets. The Kuiper belt is a group of asteroid-sized icy bodies orbiting outside the orbit of Neptune. (KBO – Kuiper Belt Objects) The Oort Cloud is composed of icy cometary objec ...
... The planetary system is highly differentiated. Asteroids are very old, and not similar to terrestrial planets or Jovian planets. The Kuiper belt is a group of asteroid-sized icy bodies orbiting outside the orbit of Neptune. (KBO – Kuiper Belt Objects) The Oort Cloud is composed of icy cometary objec ...
The Outer Planets - Mr. Cramer
... • Region near Triton’s south pole is covered by nitrogen ice. ...
... • Region near Triton’s south pole is covered by nitrogen ice. ...
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.