December 2020 BRAS Newsletter
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Explore the Universe Observing Certificate Second Edition
RASC Observing Committee Explore the Universe Observing Certificate Second Edition Explore the Universe Observing Certificate Welcome to the Explore the Universe Observing Certificate Program. This program is designed to provide the observer with a well-rounded introduction to the night sky visible from North America. Using this observing program is an excellent way to gain knowledge and experience in astronomy. Experienced observers find that a planned observing session results in a more satisfying and interesting experience. This program will help introduce you to amateur astronomy and prepare you for other more challenging certificate programs such as the Messier and Finest NGC. The program covers the full range of astronomical objects. Here is a summary: Observing Objective Requirement Available Constellations and Bright Stars 12 24 The Moon 16 32 Solar System 5 10 Deep Sky Objects 12 24 Double Stars 10 20 Total 55 110 In each category a choice of objects is provided so that you can begin the certificate at any time of the year. In order to receive your certificate you need to observe a total of 55 of the 110 objects available. Here is a summary of some of the abbreviations used in this program Instrument V – Visual (unaided eye) B – Binocular T – Telescope V/B - Visual/Binocular B/T - Binocular/Telescope Season Season when the object can be best seen in the evening sky between dusk. and midnight. Objects may also be seen in other seasons. Description Brief description of the target object, its common name and other details. Cons Constellation where object can be found (if applicable) BOG Ref Refers to corresponding references in the RASC’s The Beginner’s Observing Guide highlighting this object. -
A-Level Physics a Question Paper Unit 05
Please write clearly in block capitals. Centre number Candidate number Surname –––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Forename(s) –––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Candidate signature –––––––––––––––––––––––––––––––––––––––––––––––––––––––––– A-level PHYSICS A Unit 5A Astrophysics Section B Tuesday 28 June 2016 Morning Time allowed: The total time for both sections of this paper is Materials For this paper you must have: 1 hour 45 minutes. You are a calculator advised to spend approximately a pencil and a ruler a Data and Formulae Booklet (enclosed). 50 minutes on this section. Instructions Use black ink or black ball-point pen. Fill in the boxes at the top of this page. Answer all questions. You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages. Do all rough work in this book. Cross through any work you do not want to be marked. Show all your working. Information The marks for questions are shown in brackets. The maximum mark for this section is 35. You are expected to use a calculator where appropriate. A Data and Formulae Booklet is provided as a loose insert. You will be marked on your ability to: – use good English – organise information clearly – use specialist vocabulary where appropriate. (JUN16PHYA52A01) WMP/Jun16/E4 PHYA5/2A Do not write 2 outside the box Section B The maximum mark for this section is 35. You are advised to spend approximately 50 minutes on this section. 1 A converging lens of focal length 0.15 m is used as the eyepiece of an astronomical refracting telescope in normal adjustment. 1 (a) The angular magnification of the telescope is 5.0 Calculate the distance between the eyepiece lens and the objective lens of the telescope. -
Bennu: Implications for Aqueous Alteration History
RESEARCH ARTICLES Cite as: H. H. Kaplan et al., Science 10.1126/science.abc3557 (2020). Bright carbonate veins on asteroid (101955) Bennu: Implications for aqueous alteration history H. H. Kaplan1,2*, D. S. Lauretta3, A. A. Simon1, V. E. Hamilton2, D. N. DellaGiustina3, D. R. Golish3, D. C. Reuter1, C. A. Bennett3, K. N. Burke3, H. Campins4, H. C. Connolly Jr. 5,3, J. P. Dworkin1, J. P. Emery6, D. P. Glavin1, T. D. Glotch7, R. Hanna8, K. Ishimaru3, E. R. Jawin9, T. J. McCoy9, N. Porter3, S. A. Sandford10, S. Ferrone11, B. E. Clark11, J.-Y. Li12, X.-D. Zou12, M. G. Daly13, O. S. Barnouin14, J. A. Seabrook13, H. L. Enos3 1NASA Goddard Space Flight Center, Greenbelt, MD, USA. 2Southwest Research Institute, Boulder, CO, USA. 3Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA. 4Department of Physics, University of Central Florida, Orlando, FL, USA. 5Department of Geology, School of Earth and Environment, Rowan University, Glassboro, NJ, USA. 6Department of Astronomy and Planetary Sciences, Northern Arizona University, Flagstaff, AZ, USA. 7Department of Geosciences, Stony Brook University, Stony Brook, NY, USA. 8Jackson School of Geosciences, University of Texas, Austin, TX, USA. 9Smithsonian Institution National Museum of Natural History, Washington, DC, USA. 10NASA Ames Research Center, Mountain View, CA, USA. 11Department of Physics and Astronomy, Ithaca College, Ithaca, NY, USA. 12Planetary Science Institute, Tucson, AZ, Downloaded from USA. 13Centre for Research in Earth and Space Science, York University, Toronto, Ontario, Canada. 14John Hopkins University Applied Physics Laboratory, Laurel, MD, USA. *Corresponding author. E-mail: Email: [email protected] The composition of asteroids and their connection to meteorites provide insight into geologic processes that occurred in the early Solar System. -
The Observer's Handbook for 1912
T he O bservers H andbook FOR 1912 PUBLISHED BY THE ROYAL ASTRONOMICAL SOCIETY OF CANADA E d i t e d b y C. A, CHANT FOURTH YEAR OF PUBLICATION TORONTO 198 C o l l e g e St r e e t Pr in t e d fo r t h e So c ie t y 1912 T he Observers Handbook for 1912 PUBLISHED BY THE ROYAL ASTRONOMICAL SOCIETY OF CANADA TORONTO 198 C o l l e g e St r e e t Pr in t e d fo r t h e S o c ie t y 1912 PREFACE Some changes have been made in the Handbook this year which, it is believed, will commend themselves to observers. In previous issues the times of sunrise and sunset have been given for a small number of selected places in the standard time of each place. On account of the arbitrary correction which must be made to the mean time of any place in order to get its standard time, the tables given for a particualar place are of little use any where else, In order to remedy this the times of sunrise and sunset have been calculated for places on five different latitudes covering the populous part of Canada, (pages 10 to 21), while the way to use these tables at a large number of towns and cities is explained on pages 8 and 9. The other chief change is in the addition of fuller star maps near the end. These are on a large enough scale to locate a star or planet or comet when its right ascension and declination are given. -
Instrumental Methods for Professional and Amateur
Instrumental Methods for Professional and Amateur Collaborations in Planetary Astronomy Olivier Mousis, Ricardo Hueso, Jean-Philippe Beaulieu, Sylvain Bouley, Benoît Carry, Francois Colas, Alain Klotz, Christophe Pellier, Jean-Marc Petit, Philippe Rousselot, et al. To cite this version: Olivier Mousis, Ricardo Hueso, Jean-Philippe Beaulieu, Sylvain Bouley, Benoît Carry, et al.. Instru- mental Methods for Professional and Amateur Collaborations in Planetary Astronomy. Experimental Astronomy, Springer Link, 2014, 38 (1-2), pp.91-191. 10.1007/s10686-014-9379-0. hal-00833466 HAL Id: hal-00833466 https://hal.archives-ouvertes.fr/hal-00833466 Submitted on 3 Jun 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Instrumental Methods for Professional and Amateur Collaborations in Planetary Astronomy O. Mousis, R. Hueso, J.-P. Beaulieu, S. Bouley, B. Carry, F. Colas, A. Klotz, C. Pellier, J.-M. Petit, P. Rousselot, M. Ali-Dib, W. Beisker, M. Birlan, C. Buil, A. Delsanti, E. Frappa, H. B. Hammel, A.-C. Levasseur-Regourd, G. S. Orton, A. Sanchez-Lavega,´ A. Santerne, P. Tanga, J. Vaubaillon, B. Zanda, D. Baratoux, T. Bohm,¨ V. Boudon, A. Bouquet, L. Buzzi, J.-L. Dauvergne, A. -
BAA Handbook 2010.Pdf
cover:Layout 1 08/09/2009 11:18 Page 1 THE HANDBOOK OF THE BRITISH ASTRONOMICAL ASSOCIATION 2010 2009 October ISSN 0068-130-X CONTENTS CALENDAR 2010 . 2 PREFACE. 3 HIGHLIGHTS FOR 2010. 4 SKY DIARY FOR 2010 . 5 VISIBILITY OF PLANETS. 6 RISING AND SETTING OF THE PLANETS IN LATITUDES 52°N AND 35°S. 7-8 ECLIPSES . 9-13 TIME. 14-15 EARTH AND SUN. 16-18 MOON . 19 SUN’S SELENOGRAPHIC COLONGITUDE. 20 MOONRISE AND MOONSET . 21-25 LUNAR OCCULTATIONS . 26-32 GRAZING LUNAR OCCULTATIONS. 33-34 PLANETS – EXPLANATION OF TABLES. 35 APPEARANCE OF PLANETS. 36 MERCURY. 37-38 VENUS. 39 MARS. 40-41 ASTEROIDS AND DWARF PLANETS. 42-60 JUPITER . 61-64 SATELLITES OF JUPITER . 65-80 SATURN. 81-84 SATELLITES OF SATURN . 85-91 URANUS. 92 NEPTUNE. 93 COMETS. 94-100 METEOR DIARY . 101-103 VARIABLE STARS . 104-109 Algol; λ Tauri; RZ Cassiopeiae; Mira Stars; ε Aurigae EPHEMERIDES OF DOUBLE STARS . 110-111 BRIGHT STARS . 112 GALAXIES . 113-114 SUN, MOON AND PLANETS: Physical data. 115 SATELLITES (NATURAL): Physical and orbital data . 116-117 RADIO TIME SIGNALS . 118 INTERNET RESOURCES. 119-120 CONVERSION FORMULAE, TELESCOPE DATA AND GREEK ALPHABET. 120 ASTRONOMICAL AND PHYSICAL CONSTANTS . 121-122 MISCELLANEOUS DATA . 123 ERRATA . 124 Front Cover: M101. Imaged in June 2008 by Andrea Tasselli from Lincoln, UK. Intes-Micro M809 8 inch (203mm) f/10 Maksutov-Cassegrain with Starlight Xpress SXV-H9 CCD and Astronomik filter set. British Astronomical Association HANDBOOK FOR 2010 EIGHTY-NINTH YEAR OF PUBLICATION BURLINGTON HOUSE, PICCADILLY, LONDON, W1J 0DU Telephone 020 7734 4145 2 CALENDAR 2010 January February March April May June July August September October November December Day Day Day Day Day Day Day Day Day Day Day Day Day Day Day Day Day Day Day Day Day Day Day Day Day of of of of of of of of of of of of of of of of of of of of of of of of of Month Week Year Week Year Week Year Week Year Week Year Week Year Week Year Week Year Week Year Week Year Week Year Week Year 1 Fri. -
Near-Earth Asteroids Accessible to Human Exploration with High-Power Electric Propulsion
AAS 11-446 NEAR-EARTH ASTEROIDS ACCESSIBLE TO HUMAN EXPLORATION WITH HIGH-POWER ELECTRIC PROPULSION Damon Landau* and Nathan Strange† The diverse physical and orbital characteristics of near-Earth asteroids provide progressive stepping stones on a flexible path to Mars. Beginning with cislunar exploration capability, the variety of accessible asteroid targets steadily increas- es as technology is developed for eventual missions to Mars. Noting the poten- tial for solar electric propulsion to dramatically reduce launch mass for Mars ex- ploration, we apply this technology to expand the range of candidate asteroid missions. The variety of mission options offers flexibility to adapt to shifting exploration objectives and development schedules. A robust and efficient explo- ration program emerges where a potential mission is available once per year (on average) with technology levels that span cislunar to Mars-orbital capabilities. Examples range from a six-month mission that encounters a 10-m object with 65 kW to a two-year mission that reaches a 2-km asteroid with a 350-kW system. INTRODUCTION In the wake of the schedule and budgetary woes that led to the cancellation of the Constella- tion Moon program, the exploration of near-Earth asteroids (NEAs) has been promoted as a more realizable and affordable target to initiate deep space exploration with astronauts.1,2 Central to the utility of NEAs in a progressive exploration program is their efficacy to span a path as literal stepping stones between cislunar excursions and the eventual human -
Downloads/ Astero2007.Pdf) and by Aerts Et Al (2010)
This work is protected by copyright and other intellectual property rights and duplication or sale of all or part is not permitted, except that material may be duplicated by you for research, private study, criticism/review or educational purposes. Electronic or print copies are for your own personal, non- commercial use and shall not be passed to any other individual. No quotation may be published without proper acknowledgement. For any other use, or to quote extensively from the work, permission must be obtained from the copyright holder/s. i Fundamental Properties of Solar-Type Eclipsing Binary Stars, and Kinematic Biases of Exoplanet Host Stars Richard J. Hutcheon Submitted in accordance with the requirements for the degree of Doctor of Philosophy. Research Institute: School of Environmental and Physical Sciences and Applied Mathematics. University of Keele June 2015 ii iii Abstract This thesis is in three parts: 1) a kinematical study of exoplanet host stars, 2) a study of the detached eclipsing binary V1094 Tau and 3) and observations of other eclipsing binaries. Part I investigates kinematical biases between two methods of detecting exoplanets; the ground based transit and radial velocity methods. Distances of the host stars from each method lie in almost non-overlapping groups. Samples of host stars from each group are selected. They are compared by means of matching comparison samples of stars not known to have exoplanets. The detection methods are found to introduce a negligible bias into the metallicities of the host stars but the ground based transit method introduces a median age bias of about -2 Gyr. -
GTO Keypad Manual, V5.001
ASTRO-PHYSICS GTO KEYPAD Version v5.xxx Please read the manual even if you are familiar with previous keypad versions Flash RAM Updates Keypad Java updates can be accomplished through the Internet. Check our web site www.astro-physics.com/software-updates/ November 11, 2020 ASTRO-PHYSICS KEYPAD MANUAL FOR MACH2GTO Version 5.xxx November 11, 2020 ABOUT THIS MANUAL 4 REQUIREMENTS 5 What Mount Control Box Do I Need? 5 Can I Upgrade My Present Keypad? 5 GTO KEYPAD 6 Layout and Buttons of the Keypad 6 Vacuum Fluorescent Display 6 N-S-E-W Directional Buttons 6 STOP Button 6 <PREV and NEXT> Buttons 7 Number Buttons 7 GOTO Button 7 ± Button 7 MENU / ESC Button 7 RECAL and NEXT> Buttons Pressed Simultaneously 7 ENT Button 7 Retractable Hanger 7 Keypad Protector 8 Keypad Care and Warranty 8 Warranty 8 Keypad Battery for 512K Memory Boards 8 Cleaning Red Keypad Display 8 Temperature Ratings 8 Environmental Recommendation 8 GETTING STARTED – DO THIS AT HOME, IF POSSIBLE 9 Set Up your Mount and Cable Connections 9 Gather Basic Information 9 Enter Your Location, Time and Date 9 Set Up Your Mount in the Field 10 Polar Alignment 10 Mach2GTO Daytime Alignment Routine 10 KEYPAD START UP SEQUENCE FOR NEW SETUPS OR SETUP IN NEW LOCATION 11 Assemble Your Mount 11 Startup Sequence 11 Location 11 Select Existing Location 11 Set Up New Location 11 Date and Time 12 Additional Information 12 KEYPAD START UP SEQUENCE FOR MOUNTS USED AT THE SAME LOCATION WITHOUT A COMPUTER 13 KEYPAD START UP SEQUENCE FOR COMPUTER CONTROLLED MOUNTS 14 1 OBJECTS MENU – HAVE SOME FUN! -
Possible Period of the Design of Naks Tras
1 Possible period of the design of Naks tras Sudha Bhujle 1 and M N Vahia 2 1 Raheja Vihar, Powai, Mumbai, [email protected] 2Tata Institute of Fundamental Research, Mumbai, [email protected] Sudha Bhujle and Mayank Vahia Abstract The Naks ¡ tras were designed to keep track of the moon’s path in the night sky. No literature gives the exact position of these Naks ¡ tras but there are many stories associated with each Nak s¡ tra. They were also probably used for time keeping over days. There are a total of 27 Nak s¡ tras spanning the night sky and the Moon spends an average of one day (night) in each Naks ¡ tra. However, as ¢ per the present association of stars with these Nak ¡ tras, several of them are as far as 25º away from the ecliptic where as Moon travels only about 5º on either side of the ecliptic. The possibility that in the remote past the ecliptic could have been 25º north to the present is not likely. We are not sure when the Naks ¡ tras were originally identified or when and how many times they were altered. To understand when could be the Naks ¡ tras defined. We studied the sky pattern from 3500 BC to 2005 AD and realized that the Moon path was closest to the maximum number of Naks ¡ tras around 3000 BC. We therefore suggest that the Naks ¡ tras were defined around 3000 BC and that the current association of star ¥ ¦ ¤ ¡ like. M£ga r with Naks tra needs to be re-examined Introduction 1 To appear in the Indian Journal of History of Science, 2006 The ancient Indian calendar dates back several thousand years and the relevant literature has been extensively collated in a major commentary called the Indian Calendar , by Sewell and Dikshit (1986). -
Atlas Menor Was Objects to Slowly Change Over Time
C h a r t Atlas Charts s O b by j Objects e c t Constellation s Objects by Number 64 Objects by Type 71 Objects by Name 76 Messier Objects 78 Caldwell Objects 81 Orion & Stars by Name 84 Lepus, circa , Brightest Stars 86 1720 , Closest Stars 87 Mythology 88 Bimonthly Sky Charts 92 Meteor Showers 105 Sun, Moon and Planets 106 Observing Considerations 113 Expanded Glossary 115 Th e 88 Constellations, plus 126 Chart Reference BACK PAGE Introduction he night sky was charted by western civilization a few thou - N 1,370 deep sky objects and 360 double stars (two stars—one sands years ago to bring order to the random splatter of stars, often orbits the other) plotted with observing information for T and in the hopes, as a piece of the puzzle, to help “understand” every object. the forces of nature. The stars and their constellations were imbued with N Inclusion of many “famous” celestial objects, even though the beliefs of those times, which have become mythology. they are beyond the reach of a 6 to 8-inch diameter telescope. The oldest known celestial atlas is in the book, Almagest , by N Expanded glossary to define and/or explain terms and Claudius Ptolemy, a Greco-Egyptian with Roman citizenship who lived concepts. in Alexandria from 90 to 160 AD. The Almagest is the earliest surviving astronomical treatise—a 600-page tome. The star charts are in tabular N Black stars on a white background, a preferred format for star form, by constellation, and the locations of the stars are described by charts. -
2005 FEBBRAIO Sab Lun Mar Gio 1 Maria Madre Di Dio 17 S
S L P s.p.a. Assicurazioni Spese Legali Peritali e Rischi Accessori Sede e Dir. Gen: 10121 Torino - C.so Matteotti 3 bis - Tel. 011.548.003 - 011.548.748 - Fax 011.548.760 - e-mail: [email protected] SLP Assicurazioni SpA Compagnia Specializzata nel ramo Tutela Giudiziaria Capricorno (Capricornus, Cap) Acquario (Aquarius, Aqr) ALGEDI SADALMELIK M 2 DENEB ALGEDI SADACHBIA DABIH SADALSUUD NASHIRA O ANCHA ALBALI NGC 7009 M 72 SKAT M30 NGC 7293 IL MITO GRECO: IL MITO GRECO: Pan, dio della mitologia greca di carattere infernale ed orgiastico, stava banchettando sull’Olimpo insieme ad altri dei. Improvvisamente Rappresenta Ganimede, il giovane adolescente della cui bellezza si innamorò Zeus, il quale per soddisfare la propria passione amorosa, apparve Tifone, essere mostruoso, mezzo uomo e mezzo belva. Gli Dei, atterriti, fuggirono, trasformandosi in animali: Apollo diventò un assunta la forma di un’aquila, lo rapì e lo trasportò sull’Olimpo. Qui Ganimede, nominato coppiere degli Dei, si occupava personalmente di nibbio, Ermes un ibis, Ares un pesce. Pan (da cui il termine “panico”), terrorizzato, si gettò in un fiume prima di trasformarsi completamnte versare il nettare nella coppa di Zeus. Altre leggende identificano l’Acquario nello stesso Zeus intento a versare l’acqua vitale per la Terra. La in capra e fu così che le sue estremità inferiori assunsero la forma della coda di un pesce. Zeus, stupito e compiaciuto per la metamorfosi, Costellazione era conosciuta anche dagli antichi Babilonesi ed Egizi che nell’Acquario, il Portatore d’Acqua, raffiguravano un uomo che versava decise di collocare in cielo la “capra d’acqua”.