Lecture 1
... exoplanet — A moderately large object that orbits a star and shines primarily by reflecting light from its star. According to the 2006 definition of the IAU (International Astronomical Union), an object can be considered an exoplanet only if it: 1. orbits a star (or stellar remnant) 2. has a mass l ...
... exoplanet — A moderately large object that orbits a star and shines primarily by reflecting light from its star. According to the 2006 definition of the IAU (International Astronomical Union), an object can be considered an exoplanet only if it: 1. orbits a star (or stellar remnant) 2. has a mass l ...
The Inner Planets
... Just beyond the orbit of Mars is a belt of small bodies called asteroids. This asteroid belt separates the inner planets from the outer planets, Jupiter, Saturn, Uranus, Neptune, and Pluto. The first four of these planets, called the Jovian, or Jupiter-like, planets, are considerably larger than Ear ...
... Just beyond the orbit of Mars is a belt of small bodies called asteroids. This asteroid belt separates the inner planets from the outer planets, Jupiter, Saturn, Uranus, Neptune, and Pluto. The first four of these planets, called the Jovian, or Jupiter-like, planets, are considerably larger than Ear ...
Planets Worksheet
... 1. Complete the data table, on the next page, for each of the inner planets. 2. What are the inner planets sometimes called? __________________________________ 3. Which space probe has taken photos of Mercury? In what year? ________________ ___________________________________________________________ ...
... 1. Complete the data table, on the next page, for each of the inner planets. 2. What are the inner planets sometimes called? __________________________________ 3. Which space probe has taken photos of Mercury? In what year? ________________ ___________________________________________________________ ...
without video - Scott Marley
... and Dale Frail announced the discovery of two planets orbiting the pulsar PSR 1257+12. This discovery is generally considered to be the first definitive detection of exoplanets. These pulsar planets are believed to have formed from the unusual remnants of the supernova that produced the pulsar, in a ...
... and Dale Frail announced the discovery of two planets orbiting the pulsar PSR 1257+12. This discovery is generally considered to be the first definitive detection of exoplanets. These pulsar planets are believed to have formed from the unusual remnants of the supernova that produced the pulsar, in a ...
Powerpoint - Physics and Astronomy
... generate a few shooting stars, to hundreds of thousands, seen in an hour. ...
... generate a few shooting stars, to hundreds of thousands, seen in an hour. ...
The Solar System
... • Pieces of rocks that accumulated to form planets • Left over planetesimals are in the Kuiper belt beyond the orbit of Neptune • Pluto may actually just be the largest object in this belt ...
... • Pieces of rocks that accumulated to form planets • Left over planetesimals are in the Kuiper belt beyond the orbit of Neptune • Pluto may actually just be the largest object in this belt ...
14.4 The Solar System Outer Planets
... The Gas Giants • The last four outer planets are much larger and more massive than Earth, and they do not have solid surfaces. • For these reasons they are called the “Gas Giants” • They have many moons. • They are also surrounded by a set of rings. ...
... The Gas Giants • The last four outer planets are much larger and more massive than Earth, and they do not have solid surfaces. • For these reasons they are called the “Gas Giants” • They have many moons. • They are also surrounded by a set of rings. ...
Written by Abby Cessna Eight Planets The eight planets in our Solar
... with a red color caused by a high concentration of iron in the rocks that comprise the surface. The outer planets, also called Jovian planets or gas giants, are gaseous with no solid surfaces and only liquid cores. The outer planets are so much larger than the inner planets that they comprise 99% of ...
... with a red color caused by a high concentration of iron in the rocks that comprise the surface. The outer planets, also called Jovian planets or gas giants, are gaseous with no solid surfaces and only liquid cores. The outer planets are so much larger than the inner planets that they comprise 99% of ...
Click here to view my classroom presentation
... asteroids (small dense objects orbiting the Sun) and comets (small icy objects with highly eccentric orbits) There are several moons larger than Pluto and two larger than Mercury. There are many small moons that are probably started out as asteroids and were only later captured by a planet. ...
... asteroids (small dense objects orbiting the Sun) and comets (small icy objects with highly eccentric orbits) There are several moons larger than Pluto and two larger than Mercury. There are many small moons that are probably started out as asteroids and were only later captured by a planet. ...
ss - PAMS-Doyle
... Diameter= 120,000 km Period of revolution= 29.46 years Period of rotation= 10.5 hours ...
... Diameter= 120,000 km Period of revolution= 29.46 years Period of rotation= 10.5 hours ...
The Planet Walk Brochure - Take it on the walk for fun on the go
... To begin, visit the Sun station on the corner of 5th Avenue and “G” Street. The map will guide you. Then proceed down 5th Avenue, following the signs to each of the four inner planet stations: Mercury, Venus, Earth, and Mars. If you’re up for more, you can continue the Planet Walk along the Tony Kno ...
... To begin, visit the Sun station on the corner of 5th Avenue and “G” Street. The map will guide you. Then proceed down 5th Avenue, following the signs to each of the four inner planet stations: Mercury, Venus, Earth, and Mars. If you’re up for more, you can continue the Planet Walk along the Tony Kno ...
Solar System Study Guide
... * solar system- a sun and all the objects that move around it * orbit- the path that one object in space takes around another object in space * gravity- the force that pulls objects toward each other * asteroid belt- the group of rocks that separates the inner from the outer planets * planet- a larg ...
... * solar system- a sun and all the objects that move around it * orbit- the path that one object in space takes around another object in space * gravity- the force that pulls objects toward each other * asteroid belt- the group of rocks that separates the inner from the outer planets * planet- a larg ...
Planet Flash Cards
... Farthest out from the sun - coldest planet 1 moon which is more than half the size of Pluto Orbit is so elliptical that it’s path is inside Neptune’s for 20 years It just became last again in 2005. ...
... Farthest out from the sun - coldest planet 1 moon which is more than half the size of Pluto Orbit is so elliptical that it’s path is inside Neptune’s for 20 years It just became last again in 2005. ...
Solar System Formation
... Things we need to explain • The similarities in the motions and orbits of the objects in the solar system • Dichotomy in planetary morphology and ...
... Things we need to explain • The similarities in the motions and orbits of the objects in the solar system • Dichotomy in planetary morphology and ...
Terrestrial planets
... same way as other planets. Gas giants are larger and more massive than terrestrial planets, but much less dense, and are mainly composed of rock and metal. All four gas giants have ring systems made of dust and icy debris that orbit the planets. ...
... same way as other planets. Gas giants are larger and more massive than terrestrial planets, but much less dense, and are mainly composed of rock and metal. All four gas giants have ring systems made of dust and icy debris that orbit the planets. ...
Gravity in the Solar System Quiz
... 9) If you are on the top of a mountain and drop an apple, it will fall to the ground, even though the apple is gravitationally attracted to you. Why? a) Earth is larger and has a much stronger gravitational pull. b) Apples always fall down. c) Centrifugal forces pull the apple to the Earth and that ...
... 9) If you are on the top of a mountain and drop an apple, it will fall to the ground, even though the apple is gravitationally attracted to you. Why? a) Earth is larger and has a much stronger gravitational pull. b) Apples always fall down. c) Centrifugal forces pull the apple to the Earth and that ...
Gas Planets
... on the gas giant planets are so much greater than the wind speeds on Earth? The gas giant planets have a greater speed of rotation. ...
... on the gas giant planets are so much greater than the wind speeds on Earth? The gas giant planets have a greater speed of rotation. ...
EARTH LIKE PLANETS SHOULD BE QUITE COMMON IN THE
... assumed it to be average in every way. Now a new study by Northwestern University astronomers, using recent data from the 300 planets discovered orbiting other stars, turns that view on its head. "These other planetary systems don't look like the solar system at all," said Prof Frederic Rasio, senio ...
... assumed it to be average in every way. Now a new study by Northwestern University astronomers, using recent data from the 300 planets discovered orbiting other stars, turns that view on its head. "These other planetary systems don't look like the solar system at all," said Prof Frederic Rasio, senio ...
File
... Neptune are located and they are the outer planets • These planets are known for their large gaseous bands and cold temperatures • They are also called the gas giants ...
... Neptune are located and they are the outer planets • These planets are known for their large gaseous bands and cold temperatures • They are also called the gas giants ...
CHAPTER 23 – SOLAR SYSTEM
... No longer the smallest planet, now called Dwarf planet Located within a swarm of other icy objects 40 times farther from the sun than Earth Slow orbital speeds, 1 year on Pluto = 248 Earth years Highly eccentric (angled orbit) – occasionally Pluto is closer to te sun than Neptune • Icy world = “dirt ...
... No longer the smallest planet, now called Dwarf planet Located within a swarm of other icy objects 40 times farther from the sun than Earth Slow orbital speeds, 1 year on Pluto = 248 Earth years Highly eccentric (angled orbit) – occasionally Pluto is closer to te sun than Neptune • Icy world = “dirt ...
Classifying the Solar System
... Scientists classify planets in many different ways. Today you work for NASA and will use information you gather from the Solar System Data Sheet to make decisions on how you will classify the planets. ...
... Scientists classify planets in many different ways. Today you work for NASA and will use information you gather from the Solar System Data Sheet to make decisions on how you will classify the planets. ...
g9u4c11part 2
... To be considered a planet must orbit one or more stars its own gravity holds it in a spherical shape be the only body occupying the orbital path ...
... To be considered a planet must orbit one or more stars its own gravity holds it in a spherical shape be the only body occupying the orbital path ...
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.