Exploring and Understanding the Primitive Bodies of the Solar System: Progress Report from the Primitive Bodies Panel of the Decadal Survey
|
|
- Maximilian Allison
- 5 years ago
- Views:
Transcription
1 Exploring and Understanding the Primitive Bodies of the Solar System: Progress Report from the Primitive Bodies Panel of the Decadal Survey J. VEVERKA, H. MCSWEEN AND THE PRIMITIVE BODIES PANEL AGU MEETING SAN FRANCISCO, CA DECEMBER 18, 2009
2 Primitive Bodies Panel: Decadal Study Erik Asphaug Mike Brown Don Brownlee Marc Buie Marc Rayman Ed Reynolds Mark Sephton Jessica Sunshine Faith Vilas UC Santa Cruz Caltech University of Washington Southwest Research Institute Jet Propulsion Laboratory Applied Physics Laboratory Imperial College, UK University of Maryland MMT Observatory J. Veverka, Chair Cornell University H. McSween, Vice Chair University of Tennessee
3 Primitive Bodies Panel: Meetings Washington, DC September 9 11, 2009 Irvine, CA October 28 30, 2009 Knoxville, TE April 26 28, 2010
4 What is Primitive? NEO s Man Belt Asteroids Trojan Asteroids Comets Centaurs TNO/KBO s Small Satellites (e.g. Phobos & Deimos)
5 Primitive Bodies: Importance of Ground-based Observation! Numbers of known NEO s, MBA s, Trojans, Centaurs, TNO/KBO s increasing rapidly! Telescopes/surveys essential to physical and spectral characterizations of these objects! Radar observations provide additional characterizations of closer objects AND extremely accurate orbital determinations
6 Primitive Bodies: Importance of Ground-based Observation Arecibo Radar More than 50% of NEO binary systems discovered at Arecibo Unambiguous detection in a single night Geometry not important for detection Size ratio not important for detection Both known NEO triple systems discovered by radar Size and semi major axis determinations yield masses and densities directly m 2001 SN m resolution Arecibo radar image of 2006 VV m resolution m/s
7 Primitive Bodies: Importance of Ground-Based Observations Sloan Digital Sky Survey! Multi-color survey of the sky yielded correlation between color and orbital elements of 30,000 MBA s! Can study color differences within individual families! Can identify unusual objects which merit further study! Can estimate albedo using approximate color/albedo correlation
8 Primitive Bodies: Importance of Ground-based Observation Large Synoptic Survey Telescope (LSST)! Planned 8.4 meter sky survey telescope in Chile! In ten years of operation will detect! 100,000 NEO s ( >0.1 km)! 5.5 million MBA s (>0.3 km)! 300,000 Trojans ( >1 km)! 40,000 KBO s ( >100 km)
9 Missions to Primitive Bodies The Past Decade Asteroids Comets KBO s NEAR Deep Space 1 New Horizons Hyabusa Stardust Rosetta Deep Impact Dawn DIXI Stardust-NExT Rosetta
10 Asteroids
11 What Have We Learned About Asteroids? Examples! Resolution of S-asteroid/ordinary chondrite dilemma! Rubble-piles exist (Hyabusa)! Binary asteroids are common! Yarkowsky and YORP effects are important
12 Multiple Asteroids! 1/6 of near-earth asteroids larger than 200 m have satellites!! Can determine densities and estimate porosities
13 Asteroids! Spacecraft study of first rubble pile asteroid, Itokawa: Itokawa, studied by the JAXA Hayabusa spacecraft
14 Close-up of Itokawa
15 Rubble Pile Asteroids: Circa 1950
16 Asteroid Detection Programs Have Identified 474,894 Asteroids (JPL Horizons 12/07/09) Capabilities now exist to detect and study NEOs prior to impact:! Ground-based telescopes able to observe photometry, reflectance spectra, light curve on approach! Can determine trajectory and impact point accurately 2008 TC3 Jenniskens et al., 2009
17 Recovery of 2008 TC3
18 Asteroids Retain Some Mysteries
19 Comets
20 What Have We Learned About Comets? Examples! Pre-solar grains are rare in comets (Stardust)! High T and Low T materials are mixed in comets (Stardust)! Comet Nuclei are underdense (DI)! Some comet nuclei are layered (DI; hints also in DS- 1 and Stardust)! Smooth flows erupted to surface (?) (DI)
21 Sample Analysis results from the Stardust Mission Capture track of a strong >10!m particle Most tracks of 1-10!m particles are of this type Capture track of a weak >10!m particle Many tracks of ~100!m Particles are of of this type
22 Comets in the Microscope fassaite diopsid e spinel gehlenite melt anorthite Ti+V nitride & FeNi Impact melt anorthi te
23 Comet Wild 2! Comet Wild 2 is not predominately made of stardust! The isotopically anomalous presolar grain content < meteorites! Most > micron rocky materials were made in the inner SS! And transported to the Kuiper Belt! A major fraction of >micron rocky components formed >1400K! (includes chondrule & CAI fragments)! Comet Wild 2 contains glycine
24 Key Issues in Cometary Science! What are the elemental, isotopic, molecular compositions and physical interrelationships of cometary volatiles, organics, and minerals?! How do comets work? What are the evolutionary processes active on comets and what drives them? Does (primordial?) heterogeneity drive evolution or is the heterogeneity the result of differential evolution?
25 Wild 2! The surface of 4.5 km Wild 2 is unlike the surfaces of other imaged comets, asteroids or small satellites
26 What Have We Learned About TNO/KBO s Examples! Vast numbers exit (more than 1000 known)! Population contains large (i.e. Pluto-sized objects)! Binaries are common! Surfaces properties differ (why?)
27 Largest Known Trans-Neptunian Objects (TNOs)
28 TNO s: Differences in Surface Composition
29 New Horizons! Arrives at Pluto on July 14, 2015! Will Pluto look anything like Triton?! What about Chiron, Nix and Hydra?
30 Rosetta! On its way to Comet C-G! Arrives in 2014! Rendezvous and deploys lander to the surface
31 Dawn s Mission to Vesta September 2011 May 2012 Then on to Ceres
32 HST Image Dawn at Ceres: August 2014
33 What Does a Very Active Comet Look Like?! For most JF comets less than 10 20% of surface is active undergoing sublimation! DIXI the former Deep Impact spacecraft is on its way to Hartley 2! Hartley 2 is unusual: nearly 100% of surface must be active to explain observe H 2 O production rates Hartley 2 Encounter 4 November 2010 (perihelion + 7 days) Earth* AU Sun AU Approach phase angle = 86.1º Nucleus V = km/s * Earth 30.3º below Sun - V-inf plane Comet declination 6.6º from Earth
34 How Much Does a Comet s Surface Change Between Perihelion Passes?! Deep Impact imaged Tempel 1 near perihelion in 2005! Stardust-NExT will return to Tempel 1 at the next perihelion in 2011
35 Some Suggestions from the Community (no priority order)! Primitive Body Sample Return (Comet or Asteroid)! Main-belt Asteroid Lander/Rover! Trojan or Centaur Orbiter! Kuiper Belt Explorer (as a new Horizons follow-on)! Etc., etc.
36 Primitive Bodies Goals Mission Types! Discovery-class essential but not sufficient! Challenges! Affordable Launch Vehicles! Power Sources! ITAR Bureaucracy! Most urgent need: * Predictable AO Release Schedule at 18 month intervals
37 Primitive Bodies Goals Mission Types! New Frontiers-class mission can address most but not all Primitive Bodies goals! Challenges! Current cost cap too low: should be at least $1B! Power sources for distant missions no longer available
38 Primitive Bodies Goals Mission Types! Flagship-class mission necessary to address some key goals (e.g. Cryogenic Comet Sample Return)! Challenges! Currently there is only one class of Flagship Mission: HUGE! Need to define a class of modest Flagship Missions in $2B range! Need to facilitate international cooperation on such missions
39
Report to Planetary Science Decadal Survey Primitive Bodies Panel. Perspectives from the Previous PBP Experience,
Report to Planetary Science Decadal Survey Primitive Bodies Panel Perspectives from the Previous PBP Experience, 2001-2002 Primitive Bodies Panel Meeting, Sept. 9, 2009, Washington, DC Dale Cruikshank
More informationCometary Science. Jessica Sunshine. Department of Astronomy University of Maryland
Cometary Science Jessica Sunshine Department of Astronomy University of Maryland Slide 1 Major Cometary Goals: Last Decadal Survey Building Blocks of the Solar System Where in the solar system are the
More informationSBAG GOALS Origin of the Solar System Theme
SBAG GOALS Origin of the Solar System Theme Objective 1.2. Study small bodies to understand the origin of the Solar System Objective 1.1.2 Find and characterize new samples from small bodies Presented
More informationPluto is not alone out there
Reading: Chapter 13, Sect. 13.1-13.4, Chapter 14, Sect. 14.1-14.2 Homework 9 - See course webpage later this week Exam 2 - Tuesday November 2 - in class - Physics 3 and 5 Practice exam, review sheets posted
More informationComet Science Goals II
Comet Science Goals II {questions for goals} Don Brownlee Did the events postulated by the Nice Hypothesis really happen? Were there wide-spread solar system wide impact events that were coeval with the
More informationReport from the Small Bodies Assessment Group (SBAG) to the Planetary Science Advisory Committee
Report from the Small Bodies Assessment Group (SBAG) to the Planetary Science Advisory Committee Tim Swindle, SBAG Chair February 23, 2018 Last SBAG Meeting: January 17-18, 2018: 18 th SBAG Meeting, NASA-Ames
More informationThe Main Points. Asteroids. Lecture #22: Asteroids 3/14/2008
Lecture #22: Asteroids Discovery/Observations Where are they? How many are there? What are they like? Where did they come from? Reading: Chapter 12.1 Astro 102/104 1 The Main Points Asteroids are small,
More informationUniverse Now. 5. Minor planets and other small bodies in the Solar System
Universe Now 5. Minor planets and other small bodies in the Solar System An overview of the known Solar System The Sun 4 terrestrial planets: Mercury, Venus, Earth, Mars 4 Jovian planets: Jupiter, Saturn,
More informationThe Planet Pluto. & Kuiper Belt. The Search for PLANET X Pluto Discovered. Note how Pluto Moved in 6 days. Pluto (Hades): King of the Underworld
X The Planet Pluto & Kuiper Belt Updated May 9, 2016 The Search for PLANET X Recall Neptune was predicted from observed changes in orbit of Uranus Lowell & Pickering suggest small changes in Neptune s
More informationA Survey of the Planets Earth Mercury Moon Venus
A Survey of the Planets [Slides] Mercury Difficult to observe - never more than 28 degree angle from the Sun. Mariner 10 flyby (1974) Found cratered terrain. Messenger Orbiter (Launch 2004; Orbit 2009)
More informationLecture Outlines. Chapter 14. Astronomy Today 7th Edition Chaisson/McMillan Pearson Education, Inc.
Lecture Outlines Chapter 14 Astronomy Today 7th Edition Chaisson/McMillan Chapter 14 Solar System Debris Units of Chapter 14 14.1 Asteroids What Killed the Dinosaurs? 14.2 Comets 14.3 Beyond Neptune 14.4
More informationSurvey of the Solar System. The Sun Giant Planets Terrestrial Planets Minor Planets Satellite/Ring Systems
Survey of the Solar System The Sun Giant Planets Terrestrial Planets Minor Planets Satellite/Ring Systems Definition of a dwarf planet 1. Orbits the sun 2. Is large enough to have become round due to the
More informationNASA s Planetary Science Program Status
NASA s Planetary Science Program Status Presentation to VEXAG James L. Green Director, Planetary Science Division October 28, 2009 1 Outline MSL status Announcements of Opportunity R&A International Agreements
More informationNASA Planetary Science Programs
NASA Planetary Science Programs James L. Green NASA, Planetary Science Division February 19, 2015 Presentation at OPAG 1 Outline Mission events Passed FY15 Budget elements President s FY16 Budget Discovery
More informationAsteroids, Comets and Meteorites. What is an Asteroid? Asteroids discovered. Asteroid facts. Example Asteroids
Asteroids, Comets and Meteorites Perseid meteor shower courtesy NASA Eros: courtesy NASA What is an Asteroid? View from 50 km ~1.5 1.5 km Comet McNaught in 2007 by Aberdeen Astronomical Society member
More informationRosetta activity variation and evolution
Cometary Activity Rosetta activity variation and evolution Understanding activity understanding ice inside the nucleus Understanding ice understanding early solar system history/conditions Understand link
More informationAsteroids, Comets and Meteorites
Asteroids, Comets and Meteorites Perseid meteor shower courtesy NASA Eros: courtesy NASA Comet McNaught in 2007 by Aberdeen Astronomical Society member Phil Hart, in Melbourne What is an Asteroid? View
More informationChapter 19: Meteorites, Asteroids, and Comets
Chapter 19: Meteorites, Asteroids, and Comets Comet Superstition Throughout history, comets have been considered as portants of doom, even until very recently: Appearances of comet Kohoutek (1973), Halley
More informationPluto, the Kuiper Belt, and Trans- Neptunian Objects
Pluto, the Kuiper Belt, and Trans- Neptunian Objects 1 What about Pluto? Pluto used to be considered a planet Pluto is one of a large number of Trans-Neptunian Objects, not even the largest one! Discovery
More informationGiant Planet / Kuiper Belt Flyby
Giant Planet / Kuiper Belt Flyby Amanda Zangari (SwRI) Tiffany Finley (SwRI) with Cecilia Leung (LPL/SwRI) Simon Porter (SwRI) OPAG: February 23, 2017 Take Away New Horizons provided scientifically valuable
More informationJames L. Green Director, Planetary Science NASA
James L. Green Director, Planetary Science NASA 1 Year of the Solar System Planetary Science Mission Events 2010 * September 16 Lunar Reconnaissance Orbiter in PSD * November 4 EPOXI encounters Comet Hartley
More informationSolar System Debris. Asteroids 11/28/2010. Large rocky debris orbiting the Sun. Ceres, the largest asteroid. Discovering Asteroids
Solar System Debris Material leftover from the formation of the Solar System Gives important clues about its origin Composition: Asteroids and Meteoroids: rock and iron Comets: ice and dust The basic building
More informationPlanetary Science Update. David Schurr Deputy Director Planetary Science July 23, 2014
Planetary Science Update David Schurr Deputy Director Planetary Science July 23, 2014 Outline Planetary upcoming mission events Recent accomplishments Use of Astrophysics Telescopes R&A status Planetary
More informationNew Horizons Beyond Pluto: The Ultima Thule Flyby
New Horizons Beyond Pluto: The Ultima Thule Flyby October 24, 2018 American Astronomical Society Division for Planetary Sciences Mission Overview Dr. Alan Stern New Horizons Principal Investigator Southwest
More informationCh. 6: Smaller Bodies in the Solar System
Ch. 6: Smaller Bodies in the Solar System FIGURE 9-1 (Discovering the Universe) Different Classifications of Solar System Objects Some of the definitions of the different types of objects in the solar
More informationTransneptunian objects. Minor bodies in the outer Solar System. Transneptunian objects
Transneptunian objects Minor bodies in the outer Solar System Planets and Astrobiology (2016-2017) G. Vladilo Around 1980 it was proposed that the hypothetical disk of small bodies beyond Neptune (called
More informationAsteroids. Titius-Bode Law (1766) updated May 16, Orbit of 1 Ceres. Ceres Discovered Structure of Ceres. Ceres (Hubble Space Telescope)
Asteroids Titius-Bode Law (1766) 2 The distances between the planets gets bigger as you go out. Johann Daniel Titius ( 1729 1796) Johann Elert Bode (1747-1826) updated May 16, 2013 Titius & Bode came up
More informationScience Issues Discussion
Science Issues Discussion Science Issues Overview developed from SBAG-generated Decadal White Papers Feel free to interrupt with questions/additions but remember I did not create the science issues the
More informationSurface Geology & Geologic Processes on Primitive Bodies
Surface Geology & Geologic Processes on Primitive Bodies Jim Bell ASU/School of Earth & Space Exploration Tempe, Arizona NASA/JPL/SSI/Cassini Mission 30 April 2012 KISS Workshop: "In Situ Science & Instrumentation
More information1 of 5 5/2/2015 5:50 PM
1 of 5 5/2/2015 5:50 PM 1. A comet that has a semi-major axis of 100 AU must have a period of about 10 years. 20 years. 100 years. 1000 years. 2. Astronomers believe chondrite meteorites are about 4.6
More informationTheme 2: Outer Solar System Tracing the origin of the Solar System
Theme 2: Outer Solar System Tracing the origin of the Solar System Essential for our understanding of the formation and evolution of our own Solar System Exploration of the outer solar system has traditionally
More informationReport to the Planetary Science Subcommittee September, 2016 Hap McSween, Chair
Dedicated to maximizing planetary sample science while protecting the integrity of NASA-collected extraterrestrial materials Report to the Planetary Science Subcommittee September, 2016 Hap McSween, Chair
More informationPhysical Characterization Studies of Near- Earth Object Spacecraft Mission Targets Drs. Eileen V. Ryan and William H. Ryan
Physical Characterization Studies of Near- Earth Object Spacecraft Mission Targets Drs. Eileen V. Ryan and William H. Ryan (NM Tech/Magdalena Ridge Observatory) Astronauts to Visit an Asteroid by 2025
More information1 Solar System Debris and Formation
1 Solar System Debris and Formation Chapters 14 and 15 of your textbook Exercises: Do all Review and Discussion and all Conceptual Self-Test 1.1 Solar System Debris Asteroids small rocky bodies Most under
More information1 of 5 2/15/2013 3:45 PM
1 of 5 2/15/2013 3:45 PM + View the NASA Portal Frequently Asked Questions What Is A Near-Earth Object (NEO)? What Is The Purpose Of The Near-Earth Object Program? How Many Near-Earth Objects Have Been
More informationGoals and Objectives for the Exploration and Investigation of the Solar System s Small Bodies
Goals and Objectives for the Exploration and Investigation of the Solar System s Small Bodies Small Bodies Assessment Group (SBAG) Version 1.1.2016 Draft for SBAG community review January 6, 2016 Recommended
More informationThe Little Things. Today. Rings, meteorites. Asteroids & Comets. Dwarf Planets Events. Homework 5. Due
Today The Little Things Rings, meteorites Asteroids & Comets Dwarf Planets Events Homework 5 Due geysers on Triton Rocky Planets versus Icy Moons Rock melts at higher temperatures. Only large rocky planets
More informationMeteorites. Collecting. Fall Observations 3/20/2013. Meteoroid in space Meteor in atmosphere. Meteorite hits ground. Fall Find Parent body
Meteorites Meteoroid in space Meteor in atmosphere Bolide, fireball very bright Trail observed Meteorite hits ground Stony, Iron, Stony-iron Fall Find Parent body Collecting Historical Reports Rocks from
More informationAST 105. Overview of the Solar System
AST 105 Overview of the Solar System Scale of the Solar System Earth Voyager 1, 1991, distance = 4 billion miles Recap: The Solar System in Scale If the Solar System were the size of a football
More informationThe solar system pt 2 MR. BANKS 8 TH GRADE SCIENCE
The solar system pt 2 MR. BANKS 8 TH GRADE SCIENCE Dwarf planets Following the discovery of multiple objects similar to Pluto (and one that was even bigger than Pluto) a new classification for planets
More informationImpact! Impact! Asteroids. The Main Points. Comets. Earth has been hit by large asteroids and comets in the past, with devastating consequences.
Impact! Assessing the Cosmic Threat from Asteroids & Comets Astro 102/104 Prof. Jim Bell Cornell University Impact! Outline Asteroids and Comets - What are they? - How many are out there? Have they / will
More informationChapter 25 Meteorites, Asteroids, and Comets
Chapter 25 Meteorites, Asteroids, and Comets Guidepost In Chapter 19, we began our study of planetary astronomy by asking how our solar system formed. In the five chapters that followed, we surveyed the
More informationSpace Administration. Don Yeomans/JPL. Jet Propulsion Laboratory California Institute of Technology Pasadena, California
NASA s National Aeronautics and Near-Earth Object Program Overview Don Yeomans/JPL The Population of Near-Earth Objects is Made Up of Active Comets (1%) and Asteroids (99%) Comets (Weak and very black
More informationOutline. Pluto s Surface. Last Homework before Exam (HW#4) is due Friday at 11:50am. Nighttime observing has 4 more nights. Check the webpage.
Last Homework before Exam (HW#4) is due Friday at 11:50am. Nighttime observing has 4 more nights. Check the webpage. 1 st exam is October 10 th 1 week away! Justin will have an extra office hour Thursday
More informationMULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Chapter 4 - Group Homework Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Density is defined as A) mass times weight. B) mass per unit volume.
More informationChapter 12 Remnants of Rock and Ice. Asteroid Facts. NEAR Spacecraft: Asteroid Eros
Chapter 12 Remnants of Rock and Ice Asteroids, Comets, and the Kuiper Belt Asteroid Facts Asteroids are rocky leftovers of planet formation Largest is Ceres, diameter ~1,000 km (most smaller) 150,000 in
More informationChapter 25. Meteorites, Asteroids, and Comets
Chapter 25 Meteorites, Asteroids, and Comets Guidepost In Chapter 19 you began your study of planetary astronomy by considering evidence about how our solar system formed. In the five chapters that followed
More informationJohn Dankanich NASA s In-Space Propulsion Technology Project November 18, 2009
Electric Propulsion Options for Small Body Missions John Dankanich NASA s In-Space Propulsion Technology Project November 18, 2009 1 How is EP Relevant to Small Body Missions? Nearly all small body missions
More informationAST 248. Is Pluto a Planet?
AST 248 Is Pluto a Planet? And what is a planet, anyways? N = N * f s f p n h f l f i f c L/T What is a Star? A star supports stable Hydrogen fusion Upper mass limit: about 120 M above that radiation pressure
More informationChapter 9 Remnants of Rock and Ice. Asteroids, Comets, and Pluto
Chapter 9 Remnants of Rock and Ice Asteroids, Comets, and Pluto 9.1 Asteroids and Meteorites Our Goals for Learning Why is there an asteroid belt? How are meteorites related to asteroids? Asteroid Facts
More informationAside from my last lecture: my solar cooker!
Aside from my last lecture: my solar cooker! Don t forget to turn in homework. Bring star wheel on Wed! Remember, no class next Monday, Nov 11, Veteran s day Wed Nov 13: second Kitt Peak trip: many more
More informationSolar System revised.notebook October 12, 2016 Solar Nebula Theory
Solar System revised.notebook The Solar System Solar Nebula Theory Solar Nebula was a rotating disk of dust and gas w/ a dense center dense center eventually becomes the sun start to condense b/c of gravity
More informationToday. Events. asteroids, meteorites, comets. Homework 5 Due. things that go bump. Thanksgiving next week. Exam III - Dec. 7
Today asteroids, meteorites, comets things that go bump Events Homework 5 Due Thanksgiving next week Exam III - Dec. 7 Lots of small asteroids number A few big asteroids apparent brightness Asteroids are
More informationSolar System Debris: Comets and Asteroids
1 Solar System Debris: Comets and Asteroids Primarily found in two zones in the solar system. The Asteroid Belt (rocky, between Jupiter and Mars) The Edgeworth/Kuiper Belt (beyond Neptune) and Oort Cloud
More informationStardust and Hayabusa Missions. Mike Zolensky NASA JSC
Stardust and Hayabusa Missions Mike Zolensky NASA JSC 150 km from nucleus ΔV= 6.1 km/s January 2, 2004 Wild 2 (81P) A Jupiter family comet captured into present orbit in 1973 after a 0.006 AU Jupiter encounter
More informationAdministrative Changes
Planetary Science Division Update Presentation at the 38th Lunar and Planetary Science Conference James L. Green Director, Planetary Science Division March 12, 2007 1 Administrative Changes Key Civil Servant
More informationSolar System Research Teacher Notes The Sun
The Sun G-type main sequence star (G2V), also known as a yellow dwarf Mass = 1.99 x 10 30 kg or 333,000 Earths. Volume = 1.41 x 10 18 km 3 or 1,300,000 Earths. Density (average) = 1.41 g/cm 3 or 0.255
More informationLecture 16 Dwarf Planets and Comets January 8a, 2014
1 Lecture 16 Dwarf Planets and Comets January 8a, 2014 2 Pluto -- Basic Information Discovered by Clyde Tombaugh in 1930 Period: P orb = 248 years Distance: a = 39.5 AU 3 moons (Charon, Nix, Hydra) Demoted
More informationPluto Data: Numbers. 14b. Pluto, Kuiper Belt & Oort Cloud. Pluto Data (Table 14-5)
14b. Pluto, Kuiper Belt & Oort Cloud Pluto Pluto s moons The Kuiper Belt Resonant Kuiper Belt objects Classical Kuiper Belt objects Pluto Data: Numbers Diameter: 2,290.km 0.18. Earth Mass: 1.0. 10 22 kg
More informationApproaching the internal structure of the nuclei of comets
Approaching the internal structure of the nuclei of comets Anny-Chantal Levasseur-Regourd J. Lasue, E. Hadamcik Univ. Paris VI / Aéronomie IPSL-CNRS aclr@aerov.jussieu.fr Levasseur-Regourd Alicante, 2007
More informationThe Cosmic Perspective Seventh Edition. Asteroids, Comets, and Dwarf Planets: Their Nature, Orbits, and Impacts. Chapter 12 Lecture
Chapter 12 Lecture The Cosmic Perspective Seventh Edition Asteroids, Comets, and Dwarf Planets: Their Nature, Orbits, and Impacts Asteroids, Comets, and Dwarf Planets: Their Nature, Orbits, and Impacts
More informationVagabonds of the Solar System. Chapter 15
Vagabonds of the Solar System Chapter 15 ASTR 111 003 Fall 2007 Lecture 13 Nov. 26, 2007 Introduction To Modern Astronomy I: Solar System Introducing Astronomy (chap. 1-6) Planets and Moons (chap. 7-15)
More informationGoals and Objectives for the Exploration and Investigation of the Solar System s Small Bodies
Goals and Objectives for the Exploration and Investigation of the Solar System s Small Bodies Small Bodies Assessment Group (SBAG) Version 1.2.2016 March 4, 2016 Recommended citation: SBAG (2016), Goals
More informationComets and KBO's. Comets. Halley's Comet. Far outside the orbit of Neptune are an overwhelming number of small icy bodies
Comets and KBO's Far outside the orbit of Neptune are an overwhelming number of small icy bodies The Kuiper belt is a ring of icy material located in the plane of the Solar System Comets were known and
More informationThe Formation of the Solar System
The Formation of the Solar System Basic Facts to be explained : 1. Each planet is relatively isolated in space. 2. Orbits nearly circular. 3. All roughly orbit in the same plane. 4. Planets are all orbiting
More informationChapter 4 The Solar System
Chapter 4 The Solar System Comet Tempel Chapter overview Solar system inhabitants Solar system formation Extrasolar planets Solar system inhabitants Sun Planets Moons Asteroids Comets Meteoroids Kuiper
More information28-Aug-17. A Tour of Our Solar System and Beyond. The Sun
A Tour of Our Solar System and Beyond The Sun diameter = 1,390,000 km = 864,000 mi >99.8% of the mass of the entire solar system surface temperature 5800 C 600 x 10 6 tons H -> 596 x 10 6 tons He per second
More informationBut first... Asteroids. Asteroids... Lecture 3: Overview of Asteroids and Meteorites. Space junk...? Rosetta Stones...? or Harbingers of DOOM?
Lecture 3: Overview of Asteroids and Meteorites Astro 202 Prof. Jim Bell (jfb8@cornell.edu) Spring 2008 But first... A few words about Referencing in science writing... (see http://astrosun2.astro.cornell.edu/academics/courses/a202/referencing.html)
More informationThis asteroid was visited by the NEAR Shoemaker probe, which orbited it, taking extensive photographs of its
Chapter 9 Part 1 Asteroids and Comets Why is there an asteroid belt? This asteroid was visited by the NEAR Shoemaker probe, which orbited it, taking extensive photographs of its surface, and, on February
More informationA prominent naked eye comet will appear about every 5 years. Aspects of comets that we will discuss. Comets
Comets The last type of minor solar system object is the one which has been most noticed since deep antiquity Reasons why s were feared and considered omens prior to modern times They had a different appearance
More informationLocated Between The Orbits Of
The Asteroids Shown In The Data Table Are Located Between The Orbits Of The asteroid belt lies between the orbits of In science fiction movies, spaceships are often shown dodging through large numbers
More informationSolarSystem2012: The Planetary Science Decadal Survey
SolarSystem2012: The Planetary Science Decadal Survey Steve Squyres Cornell University Chairman, Planetary Science Decadal Survey Lunar and Planetary Science Conference Houston, Texas, 3 March, 2010 What
More informationSummary of the 2009 October 28 to 30 Meeting of the Primitive Bodies Panel of the 2010 Planetary Science Decadal Survey. Irvine, California
Summary of the 2009 October 28 to 30 Meeting of the Primitive Bodies Panel of the 2010 Planetary Science Decadal Survey Introduction Irvine, California Michael Busch The Primitive Bodies Panel of the Planetary
More informationSolar System Observations with Spitzer
Solar System Observations with Spitzer Michael Werner Spitzer Project Scientist, JPL/Caltech Lisa Storrie-Lombardi Manager, Spitzer Science Center, IPAC/Caltech Presented to SBAG July 1, 2015 http://ssc.spitzer.caltech.edu
More informationWhat s in our solar system?
What s in our solar system? *Sun *Planets Terrestrial Jovian Dwarf Smaller objects *Meteoroids *Comets Dust http://www.techastronomy.com/userfiles/2007/7/22/solar_system4(1).jpg *Sun a. Most of mass (>99%)
More informationBit of Administration.
Bit of Administration. Washburn Observatory Thursday, 8:30-9:30 Portfolios Due Thursday, April 29,, because of possible TAA strike Put in box outside 6522 Sterling All 5 must be securely bound together,
More informationRadioactive Dating. U238>Pb206. Halflife: Oldest earth rocks. Meteors and Moon rocks. 4.5 billion years billion years
U238>Pb206 Halflife: 4.5 billion years Oldest earth rocks 3.96 billion years Meteors and Moon rocks 4.6 billion years This is the time they solidified The solar system is older than this. Radioactive Dating
More informationUnderstanding the Solar System How did it begin? How is it evolving? Heidi B. Hammel Space Science Institute Boulder, CO
Understanding the Solar System How did it begin? How is it evolving? Heidi B. Hammel Space Science Institute Boulder, CO hunting for answers Constellation of Orion the Hunter, by John Gavreau Hubble Space
More informationVagabonds of the Solar System
Vagabonds of the Solar System Guiding Questions 1. How and why were the asteroids first discovered? 2. Why didn t the asteroids coalesce to form a single planet? 3. What do asteroids look like? 4. How
More information12/3/14. Guiding Questions. Vagabonds of the Solar System. A search for a planet between Mars and Jupiter led to the discovery of asteroids
Guiding Questions Vagabonds of the Solar System 1. How and why were the asteroids first discovered? 2. Why didn t the asteroids coalesce to form a single planet? 3. What do asteroids look like? 4. How
More informationAsteroids/Meteorites 4/17/07
Asteroids and Meteorites Announcements Reading Assignment Read Chapter 16 Term Paper Due Today Details of turnitin.com Go to www.turnitin.com Click on new users usertype student Class ID: 1868418 Password:
More informationAstr 1050 Wed., March. 22, 2017
Astr 1050 Wed., March. 22, 2017 Today: Chapter 12, Pluto and Debris March 24: Exam #2, Ch. 5-12 (9:00-9:50) March 27: Mastering Astronomy HW Chapter 11 & 12 1 Chapter 12: Meteorites, Asteroids, Comets
More informationLecture 39. Asteroids/ Minor Planets In "Gap" between Mars and Jupiter: 20,000 observed small objects, 6000 with known orbits:
Lecture 39 Interplanetary Matter Asteroids Meteorites Comets Oort Cloud Apr 28, 2006 Astro 100 Lecture 39 1 Asteroids/ Minor Planets In "Gap" between Mars and Jupiter: 20,000 observed small objects, 6000
More informationJim Green Director, Planetary Science March 19, Eris
Jim Green Director, Planetary Science March 19, 2012 Eris Year of the Solar System Planetary Science Mission Events 2010 September 16 Lunar Reconnaissance Orbiter in PSD November 4 - EPOXI encounters Comet
More informationHERA MISSION & CM16 lessons learned
HERA MISSION HERA MISSION & CM16 lessons learned (CM16) Schedule criticality for 2020 launch Prepare Asteroid mission with launch opportunities in 2023 (with back-up in 2024 and 2025) (CM16) Payload selection
More informationAstronomy 405 Solar System and ISM
Astronomy 405 Solar System and ISM Lecture 14 Comets February 15, 2013 Dynamics of Comet Tails Gas (ion) tails - interact with the solar wind - point away from the Sun. Dust tails - pushed by radiation
More informationUnit 3 Lesson 6 Small Bodies in the Solar System. Copyright Houghton Mifflin Harcourt Publishing Company
Florida Benchmarks SC.8.N.1.1 Define a problem from the eighth grade curriculum using appropriate reference materials to support scientific understanding, plan and carry out scientific investigations of
More informationRings, asteroids, meteorites. Homework 5 Due. Thanksgiving next week. Final Dec. 20
Today Rings, asteroids, meteorites Events Homework 5 Due Thanksgiving next week Final Dec. 20 2007 Pearson Education Inc., publishing as Pearson Addison-Wesley Saturn s rings Note refraction in atmosphere
More informationThe discovery of four small moons of Pluto with the Hubble Space Telescope
The discovery of four small moons of Pluto with the Hubble Space Telescope Max Mutchler Research & Instrument Scientist Space Telescope Science Institute Hubble Science Briefing 6 December 2012 Pluto Charon
More informationComets and Kuiper Belt Objects 4/24/07
and Kuiper Belt Objects Announcements Reading Assignment -- Chapter 30 quiz today In-class activity and course evaluations on Thursday Public lecture tonight 7:30PM, this room Prof. Alfed McEwan, Mars
More information47th DPS Meeting Washington, D.C 9-13 November, 2015
Sunday, 8 November 2015 Workshop: Broadening Your Impact: A Workshop for Scientists Engaged in Education and Public Outreach (or Who Want to Get Involved), -, Workshop: Communicating with Congress, -,
More informationASTEROIDS, COMETS, AND TRANS-NEPTUNIAN OBJECTS:
ASTEROIDS, COMETS, AND TRANS-NEPTUNIAN OBJECTS: SMALL BODIES IN THE SOLAR SYSTEM Rosemary E. Pike ASIAA TIARA Summer School 2018 On the Origins of the Solar System SMALL BODIES IN THE SOLAR SYSTEM Formation
More informationSmall Bodies of the Outer Solar System
Mem. S.A.It. Suppl. Vol. 5, 37 c SAIt 2004 Memorie della Supplementi Small Bodies of the Outer Solar System E. Dotto 1 and M.A. Barucci 2 1 INAF-Osservatorio Astronomico di Roma, Via Frascati 33, 00040
More informationSOLAR SYSTEM B Division
SOLAR SYSTEM B Division Team Name: Team #: Student Names: IMAGE SHEET A E B C D F G H Spectrum I Spectrum II SS2014 Spectrum III Spectrum IV Spectrum V Spectrum VI 1. A. What satellite is pictured in Image
More informationAnnouncements. LearningSystem Course Evaluation
Announcements! Tonight s observing session is cancelled! we will try again next week! The 9 th LearningCurve activity was due earlier today! We will cover Chapter 9 today! Assignment 9 and Quiz 9 will
More information6. (11.2) What shape are typical asteroids and how do we know? Why does Ceres not have this shape?
SUMMARY Our Solar System contains numerous small bodies: dwarf planets, asteroids, comets, and meteoroids. They are important astronomically because they give us information about the time of formation,
More informationASE 379L Space Systems Engineering Fb February 4, Group 1: Johnny Sangree. Nimisha Mittal Zach Aitken
Rosetta Mission Scope and CONOPS ASE 379L Space Systems Engineering Fb February 4, 2008 Group 1: Johnny Sangree Ankita Mh Maheshwarih Kevin Burnett Nimisha Mittal Zach Aitken 1 Need Statement To understand
More informationASTR 4800: Space Science - Practice & Policy Today s Topic: Science Goes to the Moon & Planets. Next class: Visit by Richard Truly, former NASA
ASTR 4800: Space Science - Practice & Policy Today s Topic: Science Goes to the Moon & Planets. Next class: Visit by Richard Truly, former NASA Administrator & Shuttle Pilot Read: readings noted on class
More informationOur Planetary System. Chapter 7
Our Planetary System Chapter 7 Key Concepts for Chapter 7 and 8 Inventory of the Solar System Origin of the Solar System What does the Solar System consist of? The Sun: It has 99.85% of the mass of the
More informationNews. Exam 4/Final is Saturday December 9 at 2:00 p.m. here in Clark 107
News Exam 4/Final is Saturday December 9 at 2:00 p.m. here in Clark 107 A review session will be held on Friday December 8 at 5:15 p.m. (most likely here in this room) A sheet of review questions is available
More information