Vol. 48, No. 2 June 2019 Academy Style: Respect the Audience Page

Total Page:16

File Type:pdf, Size:1020Kb

Vol. 48, No. 2 June 2019 Academy Style: Respect the Audience Page Online PDF: ISSN 233333-9063 Vol. 48, No. 2 June 2019 Journal of the International Planetarium Society Academy Style: Respect the audience Page 24 Make sure nothing escapes your audience. Background image: © NASA, ESA, M. Robberto ( STScI/ESA) and the Hubble Space Telescope Orion Treasury Project Team ZEISS VELVET LED More Colors. More Sharpness. More Detail. ZEISS VELVET LED excels not only by brilliant images of highest contrast and outstanding depth of detail, but also by tried and approved ZEISS quality – from development to manufacturing to installation and servicing. VELVET LED features long-life LED illumination yielding improved imaging quality and an extended color space – from pure white to absolute black. The projected image boasts excellent resolution of both bright and extremely dark parts. That is why a 6k dome picture projected with VELVET LED may well look crisper than many an 8k image produced by other projectors, ensuring that hardly any mystery of the universe will escape the attention of your audiences. www.zeiss.com/planetariums Executive Editor Sharon Shanks 484 Canterbury Ln Boardman, Ohio 44512 USA +1 330-783-9341 [email protected] June 2019 Webmaster Alan Gould Vol 48 No 2 Lawrence Hall of Science Planetarium Articles University of California Berkeley CA 94720-5200 USA [email protected] IPS News Advertising Coordinator 8 An official IPS White Paper: Dale Smith IPS takes stance to support planetariums in education (See Publications Committee on page 3) 9 The Value of Education in the Planetarium Membership Jeanne Bishop Individual: $65 one year; $100 two years Institutional: $250$125 per first year year; $125 annual renewal 12 Where’s the data? Why, here it is! Sharon Shanks Library Subscriptions: $50 oneper yearyear; $90 two years 16 Preparing to greet the world under Alberta’s Big Sky All amounts in USU.S. currency currency. DirectAdditional membership categories requests of membership and changes available. of Alan Nursall addressDirect membership to the Treasurer/Membership requests and changes Chairman of 18 Nominations open for IPS Board Member election address to the Treasurer/Membership Chairman. Printed Back Issues of Planetarian Martin George IPSPrinted Back Publications Back Issues Repository of Planetarian 20 A Week in the United States: A wonderful experience— maintainedIPS Back Publications by the Treasurer/Membership Repository Chair (Seemaintained contact by information the Treasurer/Membership on next page) Chair. for everyone Guilherme Marranghello (See contact information on next page.) 22 LetGerman IPS help foundation you celebrate begins the ambitious Apollo anniversaryproject to map Final Deadlines March:Final Deadlines January 21 indigenous data about the skies Anna Greene June:March: AprilJanuary 21 21 September:June: JulyApril 21 21 December:September: OctoberJuly 21 21 24 Academy Style: An Institutional Approach to Fulldome December: October 21 Storytelling Ryan Wyatt Associate Editors BookAssociate Reviews Editors April S. Whitt 32 In Iceland, extremes are just a way of life CalendarBook Reviews LorisApril S.Ramponi Whitt Sharon Shanks CartoonsCalendar AlexandreLoris Ramponi Cherman ClassroomCartoons education JackAlexandre Northrup Cherman 38 Fiftieth anniversary memories of Apollo 11 DataClassroom to Dome education MarkJack Northrup SubbaRao Thomas Wm. Hamilton EducationData to Dome Committee JeanneMark SubbaRao Bishop HumorEducation Committee AprilJeanne S. Bishop Whitt 40 Birth of Planet Earth explores the celestial events that Humor RonApril Walker S. Whitt prepared Earth to Support life Joe Kleiman Immersive Media CarolynRon Walker Collins Petersen InternationalImmersive Media News LarsCarolyn Petersen Collins Petersen 4244 TheImagine stars life come in a outworld to whereplay in thereYurakucho are all eyes on you LiveInternational interactive News programs KarrieLars Petersen Berglund Sakura Okoshi, HiroyukiJasmin Kamano Meziou MobileLive interactive news programs SusanKarrie ReynoldsBerglund Button PlanetariumMobile news design/operations TimSusan Barry Reynolds Button 4488 ImagineHow we lifedo it:in aWheeled world where tray for there telescopes are all eyes on you SoundPlanetarium advice design/operations JeffTim BowenBarry JasminAdam Meziou Thanz SouthernSound advice Hemisphere HaritinaJeff Bowen Mogoșanu History/YearsSouthern Hemisphere ago TomHaritina Callen Mogoșanu 8893 HowTributes: we do Hermann it: Wheeled Mucke tray for telescopes History/Years ago RonTom Walker Callen 94 Tributes: Dale Etheridge, Frances Decibus, PeterAdam Runge Thanz Ron Walker 93 Tributes: Hermann Mucke 94 Tributes: Dale Etheridge, Frances Decibus, Peter Runge On the Cover Columns Index of Advertisers Diagrammatic representation of DNA with 41 South ......................................................................................................................66 66 American Museum of Natural History ..... 23 images of life on Earth, including humans, from Book Reviews ..................................................................................................78 78 Ash Enterprises ..............................................................................................55 55 Life: A Cosmic Story by the California Academy Calendar .......................................................... 95 Audio Visual Imagineering ........................... 31 of Sciences in San Francisco. ©California A Different Point of View ..........................90 Bays Mountain Productions ..................................................51 51 Academy of Sciences. You can read more Data to Dome ................................................................................................64 64 BIG & Digital.................................................... 45 about the Academy’s philosophy of producing From the Classdome ........................................................................52 52 California Academy of Sciences ............... 87 fulldome on page 24. IMERSA Matters ..........................................................................................46 46 Clark Planetarium ..............................................7 In Front of the Console ..................................4 Digitalis Education Solutions ......................39 International News .......................................56....................................... 56 Evans & Sutherland ................... 48-49, 65, 81 International Planetarium Society home page: Last Light......................................................... 96 GOTO Inc. ................................................................................................................29 29 www.ips-planetarium.org LIP Service ..............................................................................................................70 70 Metaspace......................................................... 19 Mobile News ...................................................76................................................... 76 NSC Creative ......................................................5 Planetarian home page: Outside Space ............................................... 82 Ohira Tech/Megastar .......Inside back cover www.ips-planetarium.org/?page=plntrn Partycles .......................................................... 53 RSACosmos .................... Outside back cover President’s Message........................................6 Skypoint Planetariums ...................................61................................... 61 Seeking What Works ................................... 54 Spitz, Inc. ....................................................69,77.................................................... 69,77 Sound Advice ................................................72................................................ 72 Spitz Creative Media .............................59,............................. 59, 63 Tales from Dome Under ............................. 74 You Can Do Astronomy .................................11................................. 11 www.facebook.com/InternationalPlanetariumSociety Waxing New ...................................................92................................................... 92 ZEISS .....................................Inside front cover twitter.com/IPS_Planetarium Vol 48 No 2 June 2019 Planetarian 1 Aff iliate Representatives Off icers Association of Australasian Great Plains Rocky Mountain Brazilian Planetarium Planetarium Planetarium Planetariums Society Association Association ABP APS GPPA RMPA Jack L. Northrup Shane Hengst Dr. Martin Luther King, Jr. Michele Wistisen President Alexandre Cherman Outreach Manager, University Planetarium Casper Planetarium Mark SubbaRao Planetário do Rio de Janeiro of New South Wales Physics 3720 Florence Boulevard 904 North Poplar Street Adler Planetarium R. Vice-Governador UNSW Australia Omaha, Nebraska 68110 USA Casper, Wyoming 1300 South Lake Shore Drive Rubens Berardo, 100 Sydney NSW 2052 Australia [email protected] 82601 USA Chicago, Illinois 60605 USA Rio de Janeiro RJ +61 (2) 9385 4053 +1 307-577-0310 +1 312-294-0348 Brazil 22451-070 +61 (2) 9385 6060 fax Italian michele_wistisen@natronaschools. [email protected] +55 (21) 2088-0536 ext. 208 [email protected] Association of org alexandre.cherman@ www.aps-planetarium.org Planetaria planetariodorio.com.br IAP Russian www.planetarios.org.br British Planetariums www.planetariodorio.com.br Association Loris Ramponi Association of Planetaria National Archive of Planetaria
Recommended publications
  • The Minor Planet Bulletin 44 (2017) 142
    THE MINOR PLANET BULLETIN OF THE MINOR PLANETS SECTION OF THE BULLETIN ASSOCIATION OF LUNAR AND PLANETARY OBSERVERS VOLUME 44, NUMBER 2, A.D. 2017 APRIL-JUNE 87. 319 LEONA AND 341 CALIFORNIA – Lightcurves from all sessions are then composited with no TWO VERY SLOWLY ROTATING ASTEROIDS adjustment of instrumental magnitudes. A search should be made for possible tumbling behavior. This is revealed whenever Frederick Pilcher successive rotational cycles show significant variation, and Organ Mesa Observatory (G50) quantified with simultaneous 2 period software. In addition, it is 4438 Organ Mesa Loop useful to obtain a small number of all-night sessions for each Las Cruces, NM 88011 USA object near opposition to look for possible small amplitude short [email protected] period variations. Lorenzo Franco Observations to obtain the data used in this paper were made at the Balzaretto Observatory (A81) Organ Mesa Observatory with a 0.35-meter Meade LX200 GPS Rome, ITALY Schmidt-Cassegrain (SCT) and SBIG STL-1001E CCD. Exposures were 60 seconds, unguided, with a clear filter. All Petr Pravec measurements were calibrated from CMC15 r’ values to Cousins Astronomical Institute R magnitudes for solar colored field stars. Photometric Academy of Sciences of the Czech Republic measurement is with MPO Canopus software. To reduce the Fricova 1, CZ-25165 number of points on the lightcurves and make them easier to read, Ondrejov, CZECH REPUBLIC data points on all lightcurves constructed with MPO Canopus software have been binned in sets of 3 with a maximum time (Received: 2016 Dec 20) difference of 5 minutes between points in each bin.
    [Show full text]
  • Procedures for Sana Registry Specification
    PROCEDURES FOR SANA REGISTRY SPECIFICATION CCSDS RECORD CCSDS 313.2-Y-2 YELLOW BOOK October 2020 PROCEDURES FOR SANA REGISTRY SPECIFICATION CCSDS RECORD CCSDS 313.2-Y-2 YELLOW BOOK October 2020 PROCEDURES FOR SANA REGISTRY SPECIFICATION AUTHORITY Issue: CCSDS Record, Issue 2 Date: October 2020 Location: Washington, DC, USA This document has been approved for publication by the Management Council of the Consultative Committee for Space Data Systems (CCSDS). The procedure for review and authorization of CCSDS documents is detailed in Organization and Processes for the Consultative Committee for Space Data Systems (CCSDS A02.1-Y-4). This document is published and maintained by: CCSDS Secretariat National Aeronautics and Space Administration Washington, DC, USA Email: [email protected] CCSDS 313.2-Y-2 Page i October 2020 PROCEDURES FOR SANA REGISTRY SPECIFICATION FOREWORD Through the process of normal evolution, it is expected that expansion, deletion, or modification of this document may occur. This Record is therefore subject to CCSDS document management and change control procedures, which are defined in Organization and Processes for the Consultative Committee for Space Data Systems (CCSDS A02.1-Y-4). Current versions of CCSDS documents are maintained at the CCSDS Web site: http://www.ccsds.org/ Questions relating to the contents or status of this document should be sent to the CCSDS Secretariat at the email address indicated on page i. CCSDS 313.2-Y-2 Page ii October 2020 PROCEDURES FOR SANA REGISTRY SPECIFICATION At time of publication, the active Member and Observer Agencies of the CCSDS were: Member Agencies – Agenzia Spaziale Italiana (ASI)/Italy.
    [Show full text]
  • EN-Airbus-Sps-Press Release-Airbus Signs MOU with Hellenic Space
    SPACE SYSTEMS Airbus signs MOU with Hellenic Space Agency for future space cooperation Agreement will cover Earth observation, space exploration, and future growth opportunities @AirbusSpace @HSA_gov London/Athens, 21 May 2019 – Airbus and the Hellenic Space Agency have signed a Memorandum of Understanding (MOU) covering future space cooperation. The MOU will focus on Earth observation, space exploration and future growth opportunities including software research and space policy. Established in 2018, the Hellenic Space Agency (HSA) is Greece’s national body responsible for space and is part of the Ministry of Infrastructure, Transport and Networks. Another key element of the MOU is to share best practices in encouraging future generations to be involved in space, ranging from promoting STEM (Science Technology, Engineering and Maths) subjects to sponsoring research activities relating to space. The MOU will also look to encourage exchange of personnel between Airbus and HSA to enhance knowledge sharing and understanding. These will include educational initiatives, space applications, research and technology, space policy, law and regulation, and explore long term possible cooperation on space activities. This agreement between Airbus and HSA follows an MOU that was signed between HSA and the UK Space Agency and announced in January 2019. Justin Byrne from Airbus Defence and Space UK, said: “This MOU with the Hellenic Space Agency, builds on the cooperation we have already begun with the Greek space industry and academia on programmes such as Solar Orbiter and ExoMars. We look forward to future collaborations across Earth observation, science and wider space applications.” The Hellenic Space Agency Chairman Mr Protopapas Christodoulos said: “Airbus is one of the three largest space companies in Europe.
    [Show full text]
  • WG Photometry and Polarimetry of Asteroids
    PHOTOMETRY AND POLARIMETRY OF ASTEROIDS: IMPACT ON COLLABORATION Abstracts The International Workshop -2 80 0 60 2 40 4 20 6 Relative Magnitude Polarization Degree 0 8 10 -20 0 20 40 60 80 100 120 140 160 180 Phase Angle June 15–18, 2003, Kharkiv, Ukraine Organized by Research Institute of Astronomy of V. N. Karazin Kharkiv National University, Ukrainian Astronomical Association Ministry of Education and Science of Ukraine Sponsored by Kharkiv City Charity Fund “AVEC” PHOTOMETRY AND POLARIMETRY OF ASTEROIDS: IMPACT ON COLLABORATION The International Workshop June 15–18, 2003 Kharkiv, Ukraine A B S T R A C T S The Organizing Committee: Lupishko Dmitrij (co-Chairman), Kiselev Nikolai (co-Chairman), Belskaya Irina, Krugly Yurij, Shevchenko Vasilij, Velichko Fiodor, Luk’yanyk Igor Kharkiv - 2003 2 Contents Belskaya I.N., Shevchenko V.G., Efimov Yu.S., Shakhovskoj N.M., Gaftonyuk N.M., Krugly Yu.N., Chiorny V.G. Opposition Polarimetry and Photometry of Asteroids 5 Bochkov V.V., Prokof’eva V.V. Spectrophotometric Observations of Asteroids in the Crimean Astrophysical Observatory 6 Butenko G., Gerashchenko O., Ivashchenko Yu., Kazantsev A., Koval’chuk G., Lokot V. Estimates of Rotation Periods of Asteroids Derived from CCD- Observations in Andrushivka Astronomical Observatory 7 Bykov O.P., L'vov V.N. Method of accuracy estimation of asteroid positional CCD observations and results its application with EPOS Software 7 Cellino A., Gil Hutton R., Di Martino M., Tedesco E.F., Bendjoya Ph. Polarimetric Observations of Asteroids with the Torino UBVRI Photopolarimeter 9 Chiorny V.G., Shevchenko V.G., Krugly Yu.N., Velichko F.P., Gaftonyuk N.M.
    [Show full text]
  • The Minor Planet Bulletin
    THE MINOR PLANET BULLETIN OF THE MINOR PLANETS SECTION OF THE BULLETIN ASSOCIATION OF LUNAR AND PLANETARY OBSERVERS VOLUME 35, NUMBER 3, A.D. 2008 JULY-SEPTEMBER 95. ASTEROID LIGHTCURVE ANALYSIS AT SCT/ST-9E, or 0.35m SCT/STL-1001E. Depending on the THE PALMER DIVIDE OBSERVATORY: binning used, the scale for the images ranged from 1.2-2.5 DECEMBER 2007 – MARCH 2008 arcseconds/pixel. Exposure times were 90–240 s. Most observations were made with no filter. On occasion, e.g., when a Brian D. Warner nearly full moon was present, an R filter was used to decrease the Palmer Divide Observatory/Space Science Institute sky background noise. Guiding was used in almost all cases. 17995 Bakers Farm Rd., Colorado Springs, CO 80908 [email protected] All images were measured using MPO Canopus, which employs differential aperture photometry to determine the values used for (Received: 6 March) analysis. Period analysis was also done using MPO Canopus, which incorporates the Fourier analysis algorithm developed by Harris (1989). Lightcurves for 17 asteroids were obtained at the Palmer Divide Observatory from December 2007 to early The results are summarized in the table below, as are individual March 2008: 793 Arizona, 1092 Lilium, 2093 plots. The data and curves are presented without comment except Genichesk, 3086 Kalbaugh, 4859 Fraknoi, 5806 when warranted. Column 3 gives the full range of dates of Archieroy, 6296 Cleveland, 6310 Jankonke, 6384 observations; column 4 gives the number of data points used in the Kervin, (7283) 1989 TX15, 7560 Spudis, (7579) 1990 analysis. Column 5 gives the range of phase angles.
    [Show full text]
  • Espinsights the Global Space Activity Monitor
    ESPInsights The Global Space Activity Monitor Issue 3 July–September 2019 CONTENTS FOCUS ..................................................................................................................... 1 A new European Commission DG for Defence Industry and Space .............................................. 1 SPACE POLICY AND PROGRAMMES .................................................................................... 2 EUROPE ................................................................................................................. 2 EEAS announces 3SOS initiative building on COPUOS sustainability guidelines ............................ 2 Europe is a step closer to Mars’ surface ......................................................................... 2 ESA lunar exploration project PROSPECT finds new contributor ............................................. 2 ESA announces new EO mission and Third Party Missions under evaluation ................................ 2 ESA advances space science and exploration projects ........................................................ 3 ESA performs collision-avoidance manoeuvre for the first time ............................................. 3 Galileo's milestones amidst continued development .......................................................... 3 France strengthens its posture on space defence strategy ................................................... 3 Germany reveals promising results of EDEN ISS project ....................................................... 4 ASI strengthens
    [Show full text]
  • Delta-DOR—Technical Characteristics and Performance
    Report Concerning Space Data System Standards DELTA-DOR— TECHNICAL CHARACTERISTICS AND PERFORMANCE INFORMATIONAL REPORT CCSDS 500.1-G-2 GREEN BOOK November 2019 Report Concerning Space Data System Standards DELTA-DOR— TECHNICAL CHARACTERISTICS AND PERFORMANCE INFORMATIONAL REPORT CCSDS 500.1-G-2 GREEN BOOK November 2019 CCSDS REPORT CONCERNING DELTA-DOR— TECHNICAL CHARACTERISTICS AND PERFORMANCE AUTHORITY Issue: Informational Report, Issue 2 Date: November 2019 Location: Washington, DC, USA This document has been approved for publication by the Management Council of the Consultative Committee for Space Data Systems (CCSDS) and reflects the consensus of technical panel experts from CCSDS Member Agencies. The procedure for review and authorization of CCSDS Reports is detailed in Organization and Processes for the Consultative Committee for Space Data Systems (CCSDS A02.1-Y-4). This document is published and maintained by: CCSDS Secretariat National Aeronautics and Space Administration Washington, DC, USA Email: [email protected] CCSDS 500.1-G-2 Page i November 2019 CCSDS REPORT CONCERNING DELTA-DOR— TECHNICAL CHARACTERISTICS AND PERFORMANCE FOREWORD This Report contains technical material to supplement the CCSDS Recommendations for the standardization of Delta Differential One-way Ranging operations by CCSDS Member Agencies. The topics covered herein include a general description of the technique, theoretical background, definition of observables, estimates of system performance, system trade-offs, and descriptions of existing systems. This Report deals explicitly with the technical definitions and conventions associated with inter-Agency cross-support situations involving Delta Differential One-way Ranging operations. Through the process of normal evolution, it is expected that expansion, deletion, or modification of this document may occur.
    [Show full text]
  • Wallops Station and the Creation of an American Space Program
    By Harold D. NASA SP-4311 WALLOPS STATION AND THE CREATION OF AN AMERICAN SPACE PROGRAM HaroldD. WallaceJr. The NASA History Series National Aeronautics and Space Administration NASA History Office Office of Policy and Plans Washington, D.C. 1997 Library of Congress Cataloging-in-Publication Data Wallace, Harold 0., 1960­ Wallops Station and the Creation of an American Space Program/ Harold D. Wallace Jr. p. cm.- (The NASA history series) (NASA SP: 4311) Includes bibliographical references ( p. ) and Index. 1. Wallops Flight Facility-History. 2. Astronautics-United States-History. I. Title. IL Series: NASA SP: 4311. TL862.W35W35 1997 97-30983 629.4'09755' 16-dc21 CIP To the Memory of Florence C. Anderson- who always believed that an education was something that could never be taken away. TABLE OF CONTENTS Chapter ~ Acknowledgment ........................................................................................... v About the Author............................................................................................ vii List of Acronyms............................................................................................. ix Maps of Wallops ............................................................................................. xi I. INTRODUCTION.................................................................................... 1 Notes...................................................................................................... 17 II. SPUTNIK, NASA, AND INDEPENDENCE......................................
    [Show full text]
  • Possible Education Pvt. Ltd., Lucknow. All Rights Reserved
    © Possible Education Pvt. Ltd., Lucknow. All rights reserved. 2018 This work is copyright protected under Indian and International Copyright Laws. All rights reserved .No part of this work may be reproduced, transmitted in any form by any means, including photocopying and recording, without the written permission of the copyright holder, an application for which should be addressed to the author. Such written permission should be obtained before any part of this publication is stored in a retrieval system of any nature. The copyright extends to the particular arrangement, sequence, construction and language of information presented, this list being indicative and not exhaustive. No copyright is asserted with regards to questions published by Universities, official and public documents, works where acknowledged and statutory references. Except where specifically provided questions and examples are works of fiction and do no bear any resemblance or reference to any person living or dead. All disputes subject to Lucknow Jurisdiction only. Contents National …………………………………………………………………………………………..…… 1 International …………………………………………………………………………….…..……… 12 Legal News ……………………………………………………………………..………….………… 16 Economy ………………………………………………………………………………..….………… 18 Science & Technology ……………………………………………………………….…..……… 21 Sports ……………………………………………………………………………………….………… 26 Awards ………………………………………………………………………………..……………… 28 Summits ……………………………………………………………………………………………… 31 Persons in News ………………………………………………………………………..………… 33 Obituary ………………………………………………………………………………………………
    [Show full text]
  • Country / Organization Name of the Instrument Institution / Office Date
    General Coordination of International Affairs and Space Security AGENCIA ESPACIAL MEXICANA Current Agreements with Space Agencies and International Organizations Country / No. Name of the Instrument Institution / Office Date Validity Organization Framework Agreement between the Mexican Space Agency of the United Mexican States CONAE 07/29/2016 1 and the Argentina National Space Activities Commission concerning space cooperation for Argentina National Space Activities 5 years peaceful purposes. Commission ARGENTINA Memorandum of Understanding between the Mexican Space Agency and Sur SPACE SUR 11/02/2018 2 5 years Emprendimientos Tecnológicos, S.R.L. Sur Emprendimientos Tecnológicos, S.R.L Memorandum of Understanding between Agencia Espacial Mexicana represented by the Coordinator-General for Human Capital Formation in the Space Field, Carlos Roberto de SGAC 04/01/2019 3 Undefined Jesús Duarte Muñoz and Space Generation Advisory Council represented by the Executive Space Generation Advisory Council AUSTRIA Director, Clementine Decoopman Memorandum of Understanding between the Mexican Space Agency of the United Mexican BELSPO 02/18/2019 4 States and the Belgian Federal Office for Science Policy of the Kingdom of Belgium 5 years Belgian Federal Office for Science Policy concerning space cooperation for peaceful purposes. BELGIUM LUCIAD 02/19/2019 5 Letter of Intent between the Mexican Space Agency and LUCIAD, N.V. Undefined LUCIAD N.V. Letter of Intent between the Mexican Space Agency and the Ecuadorian Civilian Space EXA 10/05/2016 6 Agency concerning cooperation in exploration and utilization of outer space for peaceful Undefined Ecuadorian Civilian Space Agency purposes. ECUADOR Nonreimbursable Space Act Agreement between the Agencia Espacial Mexicana and the NASA 03/15/2019 7 National Aeronautics and Space Administration for collaboration on the Aztechsat-1 National Aeronautics and Space 2 years Cubesat Communications Technology Demostration.
    [Show full text]
  • Investigating Taxonomic Diversity Within Asteroid Families Through ATLAS Dual-Band Photometry
    Draft version February 20, 2020 Typeset using LATEX twocolumn style in AASTeX62 Investigating Taxonomic Diversity within Asteroid Families through ATLAS Dual-Band Photometry N. Erasmus,1 S. Navarro-Meza,2, 3 A. McNeill,3 D. E. Trilling,3, 1 A. A. Sickafoose,1, 4, 5 L. Denneau,6 H. Flewelling,6 A. Heinze,6 and J. L. Tonry6 1South African Astronomical Observatory, Cape Town, 7925, South Africa. 2Instituto de Astronomia, Universidad Nacional Autonoma de Mexico, Ensenada B.C. 22860, Mexico. 3Department of Physics and Astronomy, Northern Arizona University, Flagstaff, AZ 86001, USA. 4Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139-4307, USA. 5Planetary Science Institute, Tucson, AZ 85719-2395, USA 6Institute for Astronomy, University of Hawaii, Honolulu, HI 9682, USA. ABSTRACT We present here the c-o colors for identified Flora, Vesta, Nysa-Polana, Themis, and Koronis family members within the historic data set (2015-2018) of the Asteroid Terrestrial-impact Last Alert System (ATLAS). The Themis and Koronis families are known to be relatively pure C- and S-type Bus- DeMeo taxonomic families, respectively, and the extracted color data from the ATLAS broadband c- and o-filters of these two families is used to demonstrate that the ATLAS c-o color is a sufficient parameter to distinguish between the C- and S-type taxonomies. The Vesta and Nysa-Polana families are known to display a mixture of taxonomies possibly due to Vesta's differentiated parent body origin and Nysa-Polana actually consisting of two nested families with differing taxonomies. Our data show that the Flora family also displays a large degree of taxonomic mixing and the data reveal a substantial H-magnitude dependence on color.
    [Show full text]
  • Ceres from Its Gravitational Perturbations on the Orbits of 9 Asteroids
    Astron. Astrophys. 334, 729–735 (1998) ASTRONOMY AND ASTROPHYSICS The mass of (1) Ceres from its gravitational perturbations on the orbits of 9 asteroids B. Viateau and M. Rapaport Observatoire de Bordeaux, URA 352, CNRS, BP 89, F-33270 Floirac, France Received 23 December 1997 / Accepted 10 February 1998 Abstract. The mass of (1) Ceres is about half of the total mass 2. Method of the main asteroid belt, and its long-term perturbations on the orbits of many solar system objects are important. For this rea- Before 1992, all the direct determinations of the masses of as- son, a very good knowledge of this mass is necessary. Although teroids used their gravitational perturbations on the orbit of only many determinations of the mass of Ceres have been made un- one asteroid, i.e. the six orbital elements of the perturbed aster- til now, the uncertainty remaining on its value is yet too high. oid and the mass of the perturber were simultaneously corrected. A determination of the mass of Ceres, based on its gravita- In this case, the correlations between the mass of the perturbing tional perturbations on the orbits of 9 asteroids, is presented. asteroid and the orbital elements of the perturbed body, com- All the available observations of the perturbed asteroids were bined with the uncertainty of the observations used, especially used. In particular, for the asteroids observed by Hipparcos, the the old ones, can induce a bias on the value obtained for the very accurate Hipparcos data were added to the ground-based mass of the perturbing asteroid.
    [Show full text]