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Astrometric Positions for 18 Irregular Satellites of Giant Planets from 23
Astronomy & Astrophysics manuscript no. Irregulares c ESO 2018 October 20, 2018 Astrometric positions for 18 irregular satellites of giant planets from 23 years of observations,⋆,⋆⋆,⋆⋆⋆,⋆⋆⋆⋆ A. R. Gomes-Júnior1, M. Assafin1,†, R. Vieira-Martins1, 2, 3,‡, J.-E. Arlot4, J. I. B. Camargo2, 3, F. Braga-Ribas2, 5,D.N. da Silva Neto6, A. H. Andrei1, 2,§, A. Dias-Oliveira2, B. E. Morgado1, G. Benedetti-Rossi2, Y. Duchemin4, 7, J. Desmars4, V. Lainey4, W. Thuillot4 1 Observatório do Valongo/UFRJ, Ladeira Pedro Antônio 43, CEP 20.080-090 Rio de Janeiro - RJ, Brazil e-mail: [email protected] 2 Observatório Nacional/MCT, R. General José Cristino 77, CEP 20921-400 Rio de Janeiro - RJ, Brazil e-mail: [email protected] 3 Laboratório Interinstitucional de e-Astronomia - LIneA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ 20921-400, Brazil 4 Institut de mécanique céleste et de calcul des éphémérides - Observatoire de Paris, UMR 8028 du CNRS, 77 Av. Denfert-Rochereau, 75014 Paris, France e-mail: [email protected] 5 Federal University of Technology - Paraná (UTFPR / DAFIS), Rua Sete de Setembro, 3165, CEP 80230-901, Curitiba, PR, Brazil 6 Centro Universitário Estadual da Zona Oeste, Av. Manual Caldeira de Alvarenga 1203, CEP 23.070-200 Rio de Janeiro RJ, Brazil 7 ESIGELEC-IRSEEM, Technopôle du Madrillet, Avenue Galilée, 76801 Saint-Etienne du Rouvray, France Received: Abr 08, 2015; accepted: May 06, 2015 ABSTRACT Context. The irregular satellites of the giant planets are believed to have been captured during the evolution of the solar system. Knowing their physical parameters, such as size, density, and albedo is important for constraining where they came from and how they were captured. -
02. Solar System (2001) 9/4/01 12:28 PM Page 2
01. Solar System Cover 9/4/01 12:18 PM Page 1 National Aeronautics and Educational Product Space Administration Educators Grades K–12 LS-2001-08-002-HQ Solar System Lithograph Set for Space Science This set contains the following lithographs: • Our Solar System • Moon • Saturn • Our Star—The Sun • Mars • Uranus • Mercury • Asteroids • Neptune • Venus • Jupiter • Pluto and Charon • Earth • Moons of Jupiter • Comets 01. Solar System Cover 9/4/01 12:18 PM Page 2 NASA’s Central Operation of Resources for Educators Regional Educator Resource Centers offer more educators access (CORE) was established for the national and international distribution of to NASA educational materials. NASA has formed partnerships with universities, NASA-produced educational materials in audiovisual format. Educators can museums, and other educational institutions to serve as regional ERCs in many obtain a catalog and an order form by one of the following methods: States. A complete list of regional ERCs is available through CORE, or electroni- cally via NASA Spacelink at http://spacelink.nasa.gov/ercn NASA CORE Lorain County Joint Vocational School NASA’s Education Home Page serves as a cyber-gateway to informa- 15181 Route 58 South tion regarding educational programs and services offered by NASA for the Oberlin, OH 44074-9799 American education community. This high-level directory of information provides Toll-free Ordering Line: 1-866-776-CORE specific details and points of contact for all of NASA’s educational efforts, Field Toll-free FAX Line: 1-866-775-1460 Center offices, and points of presence within each State. Visit this resource at the E-mail: [email protected] following address: http://education.nasa.gov Home Page: http://core.nasa.gov NASA Spacelink is one of NASA’s electronic resources specifically devel- Educator Resource Center Network (ERCN) oped for the educational community. -
Perfect Little Planet Educator's Guide
Educator’s Guide Perfect Little Planet Educator’s Guide Table of Contents Vocabulary List 3 Activities for the Imagination 4 Word Search 5 Two Astronomy Games 7 A Toilet Paper Solar System Scale Model 11 The Scale of the Solar System 13 Solar System Models in Dough 15 Solar System Fact Sheet 17 2 “Perfect Little Planet” Vocabulary List Solar System Planet Asteroid Moon Comet Dwarf Planet Gas Giant "Rocky Midgets" (Terrestrial Planets) Sun Star Impact Orbit Planetary Rings Atmosphere Volcano Great Red Spot Olympus Mons Mariner Valley Acid Solar Prominence Solar Flare Ocean Earthquake Continent Plants and Animals Humans 3 Activities for the Imagination The objectives of these activities are: to learn about Earth and other planets, use language and art skills, en- courage use of libraries, and help develop creativity. The scientific accuracy of the creations may not be as im- portant as the learning, reasoning, and imagination used to construct each invention. Invent a Planet: Students may create (draw, paint, montage, build from household or classroom items, what- ever!) a planet. Does it have air? What color is its sky? Does it have ground? What is its ground made of? What is it like on this world? Invent an Alien: Students may create (draw, paint, montage, build from household items, etc.) an alien. To be fair to the alien, they should be sure to provide a way for the alien to get food (what is that food?), a way to breathe (if it needs to), ways to sense the environment, and perhaps a way to move around its planet. -
385557Main Jupiter Facts1(2).Pdf
Jupiter Ratio (Jupiter/Earth) Io Europa Ganymede Callisto Metis Mass 1.90 x 1027 kg 318 15 3 Adrastea Amalthea Thebe Themisto Leda Volume 1.43 x 10 km 1320 National Aeronautics and Space Administration Equatorial Radius 71,492 km 11.2 Himalia Lysithea63 ElaraMoons S/2000 and Counting! Carpo Gravity 24.8 m/s2 2.53 Jupiter Euporie Orthosie Euanthe Thyone Mneme Mean Density 1330 kg/m3 0.240 Harpalyke Hermippe Praxidike Thelxinoe Distance from Sun 7.79 x 108 km 5.20 Largest, Orbit Period 4333 days 11.9 Helike Iocaste Ananke Eurydome Arche Orbit Velocity 13.1 km/sec 0.439 Autonoe Pasithee Chaldene Kale Isonoe Orbit Eccentricity 0.049 2.93 Fastest,Aitne Erinome Taygete Carme Sponde Orbit Inclination 1.3 degrees Kalyke Pasiphae Eukelade Megaclite Length of Day 9.93 hours 0.414 Strongest Axial Tilt 3.13 degrees 0.133 Sinope Hegemone Aoede Kallichore Callirrhoe Cyllene Kore S/2003 J2 • Composition: Almost 90% hydrogen, 10% helium, small amounts S/2003of ammonia, J3methane, S/2003 ethane andJ4 water S/2003 J5 • Jupiter is the largest planet in the solar system, in fact all the otherS/2003 planets J9combined S/2003 are not J10 as large S/2003 as Jupiter J12 S/2003 J15 S/2003 J16 S/2003 J17 • Jupiter spins faster than any other planet, taking less thanS/2003 10 hours J18 to rotate S/2003 once, which J19 causes S/2003 the planet J23 to be flattened by 6.5% relative to a perfect sphere • Jupiter has the strongest planetary magnetic field in the solar system, if we could see it from Earth it would be the biggest object in the sky • The Great Red Spot, -
Space Theme Circle Time Ideas
Space Crescent Black Space: Sub-themes Week 1: Black/Crescent EVERYWHERE! Introduction to the Milky Way/Parts of the Solar System(8 Planets, 1 dwarf planet and sun) Week 2: Continue with Planets Sun and Moon Week 3: Comets/asteroids/meteors/stars Week 4: Space travel/Exploration/Astronaut Week 5: Review Cooking Week 1: Cucumber Sandwiches Week 2: Alien Playdough Week 3: Sunshine Shake Week 4: Moon Sand Week 5: Rocket Shaped Snack Cucumber Sandwich Ingredients 1 carton (8 ounces) spreadable cream cheese 2 teaspoons ranch salad dressing mix (dry one) 12 slices mini bread 2 to 3 medium cucumbers, sliced, thinly Let the children take turns mixing the cream cheese and ranch salad dressing mix. The children can also assemble their own sandwiches. They can spread the mixture themselves on their bread with a spoon and can put the cucumbers on themselves. Sunshine Shakes Ingredients and items needed: blender; 6 ounce can of unsweetened frozen orange juice concentrate, 3/4 cup of milk, 3/4 cup of water, 1 teaspoon of vanilla and 6 ice cubes. Children should help you put the items in the blender. You blend it up and yum! Moon Sand Materials Needed: 6 cups play sand (you can purchased colored play sand as well!); 3 cups cornstarch; 1 1/2 cups of cold water. -Have the children help scoop the corn starch and water into the table and mix until smooth. -Add sand gradually. This is very pliable sand and fun! -Be sure to store in an airtight container when not in use. If it dries, ad a few tablespoons of water and mix it in. -
Irregular Satellites of the Giant Planets 411
Nicholson et al.: Irregular Satellites of the Giant Planets 411 Irregular Satellites of the Giant Planets Philip D. Nicholson Cornell University Matija Cuk University of British Columbia Scott S. Sheppard Carnegie Institution of Washington David Nesvorný Southwest Research Institute Torrence V. Johnson Jet Propulsion Laboratory The irregular satellites of the outer planets, whose population now numbers over 100, are likely to have been captured from heliocentric orbit during the early period of solar system history. They may thus constitute an intact sample of the planetesimals that accreted to form the cores of the jovian planets. Ranging in diameter from ~2 km to over 300 km, these bodies overlap the lower end of the presently known population of transneptunian objects (TNOs). Their size distributions, however, appear to be significantly shallower than that of TNOs of comparable size, suggesting either collisional evolution or a size-dependent capture probability. Several tight orbital groupings at Jupiter, supported by similarities in color, attest to a common origin followed by collisional disruption, akin to that of asteroid families. But with the limited data available to date, this does not appear to be the case at Uranus or Neptune, while the situa- tion at Saturn is unclear. Very limited spectral evidence suggests an origin of the jovian irregu- lars in the outer asteroid belt, but Saturn’s Phoebe and Neptune’s Nereid have surfaces domi- nated by water ice, suggesting an outer solar system origin. The short-term dynamics of many of the irregular satellites are dominated by large-amplitude coupled oscillations in eccentricity and inclination and offer several novel features, including secular resonances. -
HST Phase II Proposal Instructions for Cycle 19
Phase II Instructions 19.0 June 2011 HST Phase II Proposal Instructions for Cycle 19 Operations and Data Management Division 3700 San Martin Drive Baltimore, Maryland 21218 [email protected] Operated by the Association of Universities for Research in Astronomy, Inc., for the National Aeronautics and Space Administration Revision History Version Type Date Editor 19.0 GO June 2011 J. Younger and S. Rose See Changes Since the Previous Cycle 18.1 GO Feb 2011 J. Younger 18.0 GO June 2010 J Younger and S Rose: Cycle 18 Initial release This version is issued in coordination with the APT release and should be fully compliant with Cycle 19 APT. This is the General Observer version. If you would like some hints on how to read and use this document, see: Some Pointers in PDF and APT JavaHelp How to get help 1. Visit STScI’s Web site: http://www.stsci.edu/ where you will find resources for observing with HST and working with HST data. 2. Contact your Program Coordinator (PC) or Contact Scientist (CS) you have been assigned. These individuals were identified in the notification letter from STScI. 3. Send e-mail to [email protected], or call 1-800-544-8125. From outside the United States, call 1-410-338-1082. Table of Contents HST Phase II Proposal Instructions for Cycle 19 Part I: Phase II Proposal Writing ................................. 1 Chapter 1: About This Document .................... 3 1.1 Document Design and Structure ............................... 4 1.2 Changes Since the Previous Cycle .......................... 4 1.3 Document Presentation ............................................... 5 1.4 Technical Content ........................................................ -
MOONS of OUR SOLAR SYSTEM Last Updated June 8, 2017 Since
MOONS OF OUR SOLAR SYSTEM last updated June 8, 2017 Since there are over 150 known moons in our solar system, all have been given names or designations. The problem of naming is compounded when space pictures are analyzed and new moons are discovered (or on rare occasions when spacecraft images of small, distant moons are found to be imaging flaws, and a moon is removed from the list). This is a list of the planets' known moons, with their names or other designations. If a planet has more than one moon, they are listed from the moon closest to the planet to the moon farthest from the planet. Since the naming systems overlap, many moons have more than one designation; in each case, the first identification listed is the official one. MERCURY and VENUS have no known moons. EARTH has one known moon. It has no official name. MARS has two known moons: Phobos and Deimos. ASTEROIDS (Small moons have now been found around several asteroids. In addition, a growing number of asteroids are now known to be binary, meaning two asteroids of about the same size orbiting each other. Whether there is a fundamental difference in these situations is uncertain.) JUPITER has 69 known moons. Names such as “S/2003 J2" are provisional. Metis (XVI), Adrastea (XV), Amalthea (V), Thebe (XIV), Io (I), Europa (II), Ganymede (III), Callisto (IV), Themisto (XVIII), Leda (XIII), Himalia (Hestia or VI), Lysithea (Demeter or X), Elara (Hera or VII), S/2000 J11, Carpo (XLVI), S/2003 J3, S/2003 J12, Euporie (XXXIV), S/2011 J1, S/2010 J2, S/2003 J18, S/2016 J1, Orthosie -
Moon Cards Mercury
SOLAR SYSTEM MOON CARDS MERCURY Number of known Moons: 0 Moon names: N/A SOLAR SYSTEM MOON CARDS VENUS Number of known Moons: 0 Moon names: N/A SOLAR SYSTEM MOON CARDS EARTH Number of known Moons: 1 Moon names: Moon SOLAR SYSTEM MOON CARDS MARS Number of known Moons: 2 Moon names: Phobos, Deimos SOLAR SYSTEM MOON CARDS JUPITER Number of known Moons: 67 Moon names: Io, Europa, Ganymede, Callisto, Amalthea, Himalia, Elara, Pasiphae, Sinope, Lysithea, Carme, Ananke, Leda, Metis, Adrastea, Thebe, Callirrhoe, Themisto, Kalyke, Iocaste, Erinome, Harpalyke, Isonoe, Praxidike, Megaclite, Taygete, Chaldene, Autonoe, Thyone, Hermippe, Eurydome, Sponde, Pasithee, Euanthe, Kale, Orthosie, Euporie, Aitne, Hegemone, Mneme, Aoede, Thelxinoe, Arche, Kallichore, Helike, Carpo, Eukelade, Cyllene, Kore, Herse, plus others yet to receive names SOLAR SYSTEM MOON CARDS SATURN Number of known Moons: 62 Moon names: Titan, Rhea, Iapetus, Dione, Tethys, Enceladus, Mimas, Hyperion, Prometheus, Pandora, Phoebe, Janus, Epimetheus, Helene, Telesto, Calypso, Atlas, Pan, Ymir, Paaliaq, Siarnaq, Tarvos, Kiviuq, Ijiraq, Thrymr, Skathi, Mundilfari, Erriapus, Albiorix, Suttungr, Aegaeon, Aegir, Anthe, Bebhionn, Bergelmir, Bestla, Daphnis, Farbauti, Fenrir, Fornjot, Greip, Hati, Hyrrokin, Jarnsaxa, Kari, Loge, Methone, Narvi, Pallene, Polydeuces, Skoll, Surtur Tarqeq plus others yet to receive names SOLAR SYSTEM MOON CARDS URANUS Number of known Moons: 27 Moon names: Cordelia, Ophelia, Bianca, Cressida, Desdemona, Juliet, Portia, Rosalind, Mab, Belinda, Perdita, Puck, Cupid, Miranda, Francisco, Ariel, Umbriel, Titania, Oberon, Caliban, Sycorax, Margaret, Prospero, Setebos, Stephano, Trinculo, Ferdinand SOLAR SYSTEM MOON CARDS NEPTUNE Number of known Moons: 14 Moon names: Triton, Nereid, Naiad, Thalassa, Despina, Galatea, Larissa, Proteus, Laomedia, Psamanthe, Sao, Neso, Halimede, plus one other yet to receive a name. -
Moons of the Solar System
MOONS OF OUR SOLAR SYSTEM last updated October 7, 2019 Since there are over 200 known moons in our solar system, all have been given names or designations. The problem of naming is compounded when space pictures are analyzed and new moons are discovered (or on rare occasions when spacecraft images of small, distant moons are found to be imaging flaws, and a moon is removed from the list). This is a list of the planets' known moons, with their names or other designations. If a planet has more than one moon, they are listed from the moon closest to the planet to the moon farthest from the planet. Since the naming systems overlap, many moons have more than one designation; in each case, the first identification listed is the official one. MERCURY and VENUS have no known moons. EARTH has one known moon. It has no official name. MARS has two known moons: Phobos and Deimos. ASTEROIDS (Small moons have now been found around several asteroids. In addition, a growing number of asteroids are now known to be binary, meaning two asteroids of about the same size orbiting each other. Whether there is a fundamental difference in these situations is uncertain.) JUPITER has 79 known moons. Names such as “S/2003 J2" are provisional. Metis (XVI), Adrastea (XV), Amalthea (V), Thebe (XIV), Io (I), Europa (II), Ganymede (III), Callisto (IV), Themisto (XVIII), Leda (XIII), Himalia (Hestia or VI), S/2018 J1, S/2017 J4, Lysithea (Demeter or X), Elara (Hera or VII), Dia (S/2000 J11), Carpo (XLVI), S/2003 J12, Valetudo (S/2016 J2), Euporie (XXXIV), S/2003 J3, S/2011 -
CLARK PLANETARIUM SOLAR SYSTEM FACT SHEET Data Provided by NASA/JPL and Other Official Sources
CLARK PLANETARIUM SOLAR SYSTEM FACT SHEET Data provided by NASA/JPL and other official sources. This handout ©Jan 2020 by Clark Planetarium (www.clarkplanetarium.org). May be freely copied by professional educators for classroom use only. The known satellites of the Solar System shown here next to their planets with their sizes (mean diameter in km) in parenthesis. The planets and satellites (with diameters above 950 km) are depicted in relative size (with Earth = 0.500 inches). Moons are listed in order of increasing average distance from planet (closest first). Distances from planet to moon are not listed. Mercury Jupiter Saturn Uranus Neptune Pluto • 1- Metis (44) • 26- S/2017 J 3 (2) • 54- S/2017 J 5 (2) • 1- S/2009 S1 (0.6) • 33- Erriapo (10) • 1- Cordelia (40.2) (Dwarf Planet) (no natural satellites) • 2- Adrastea (16) • 27- Orthosie (2) • 55- S/2017 J 8 (1) • 2- Pan (26) • 34- Siarnaq (40) • 2- Ophelia (42.8) • Charon (1212) • 3- Bianca (51.4) Venus • 3- Amalthea (168) • 28- Euanthe (3) • 56- S/2003 J 4 (2) • 3- Daphnis (7) • 35- Skoll (6) • Nix (50) • 4- Thebe (98) • 29- Thyone (4) • 57- Erinome (3.2) • 4- Atlas (32) • 36- Tarvos (15) • 4- Cressida (79.6) • Hydra (65) • 5- Desdemona (64) • 30- S/2003 J 16 (2) • 58- S/2017 J 2 (2) • 5- Prometheus (100.2) • 37- Tarqeq (7) • Kerberos (19.5) • 5- Io (3,643.2) • 6- Pandora (83.8) • 38- Greip (6) • 6- Juliet (93.6) • 1- Naiad (58) • 31- Mneme (2) • 59- S/2010 J 1 (2) • Styx (19) • 7- Epimetheus (119) • 39- Hyrrokkin (8) • 7- Portia (135.2) • 2- Thalassa (80) • 6- Europa (3,121.6) • -
The First Stellar Occultations by Irregular Satellites
EPSC Abstracts Vol. 13, EPSC-DPS2019-1909-1, 2019 EPSC-DPS Joint Meeting 2019 c Author(s) 2019. CC Attribution 4.0 license. The first stellar occultations by irregular satellites Altair R. Gomes-Júnior (1,2), Marcelo Assafin (2,3), Felipe Braga-Ribas (4,5,6), Gustavo Benedetti-Rossi (4,6), Júlio I. B. Camargo (2,4), Bruno E. Morgado (4), Rodrigo Boufleur (2,4) and Roberto Vieira-Martins (2,3,4) (1) UNESP - São Paulo State University, Grupo de Dinâmica Orbital e Planetologia, Guaratinguetá, SP, Brazil ([email protected]) , (2) Laboratório Interinstitucional de e-Astronomia - LIneA, Rio de Janeiro-RJ, Brazil, (3) Observatório do Valongo/UFRJ, Brazil, (4) Observatório Nacional/MCTIC, Brazil, (5) Federal Universtity of Technology Paraná (UTFPR-Curitiba), Brazil, (6) Observatoire de Paris – Meudon/LESIA, France; Abstract metre accuracy can be used to constrain the shape of Phoebe in the regions that were not observed by 1. Introduction Cassini. Since Phoebe already has a known shape from The irregular satellites are objects that orbit the Giant Cassini observations, we used the 3D shape model Planets from great distances, with highly inclined, ec- of [2]1 to fit our chords. This is important because centric orbits and mostly retrograde. It is believed that Phoebe is highly cratered so it is likely that the chords these satellites were captured by their host planets dur- may have passed through topographical features. ing the Solar System evolution. Thus, studying them may give us hints about their region of origin. In order to estimate their dimensions with great 2.1. New rotational period for Phoebe accuracy, [1] predicted stellar occultations by the 8 Firstly, the model is rotated to the configuration of the largest irregular satellites of Jupiter (Himalia, Elara, epoch of occultation, given the orientation model of Pasiphae, Carme, Lysithea, Leda, Ananke and Sinope) [3].