DOCSLIB.ORG

The Ecliptic Free Ebook

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
The Ecliptic Free Ebook FREETHE ECLIPTIC EBOOK Benjamin Wood | 496 pages | 28 Jan 2016 | Simon & Schuster Ltd | 9781471126727 | English | London, United Kingdom Ecliptic | astronomy | Britannica Of the imaginary coordinate lines that astronomers and navigators use in mapping the sky, perhaps the most important one is the ecliptic, the apparent The Ecliptic the sun appears to The Ecliptic through the sky as a result of the Earth's The Ecliptic around it. Because of the Earth's yearly revolution around the sun, the The Ecliptic appears to move in its annual journey through the heavens with the ecliptic as its path. Technically then, the ecliptic represents the extension or projection of the plane The Ecliptic the Earth's orbit out towards the sky. But since the moon and planets also move in orbits, whose planes do not differ greatly from that of the Earth's orbit, these bodies, when visible in our sky, always stay relatively close to the ecliptic line. In other words, our solar system can The Ecliptic best defined as being somewhat flat, with the planets moving in very nearly the same plane. It is for this reason that The Ecliptic sky charts plot the position of the ecliptic; it is something The Ecliptic a warning to sky watchers that strange "stars" planets often appear near and along this path through our heavens, as well as the moon. Usually the moon and planets are not positioned The Ecliptic on the ecliptic because they're not located exactly in the same orbital plane as Earthbut lie within several degrees of it and form a sort of narrow strip encompassing the entire sky which The Ecliptic call the Zodiac. Twelve constellations through which the ecliptic passes form The Ecliptic Zodiac. The name is derived from the Greek, meaning "animal circle," The Ecliptic also is related to the word "zoo," coming from the fact that most of these constellations are named for animals, such as Leo, the Lion; Taurus, the Bull; and Cancer, the Crab, just to name a few. These names which can be readily identified on sky charts are familiar to millions of horoscope users who — ironically — would be hard pressed to find them in the actual sky! If we could see the stars in the daytime, we would see the sun slowly wander from one constellation of the Zodiac to the next, making one complete circle around the sky in one year. Ancient astrologers were able to figure out The Ecliptic the sun was on the Zodiac by noting which was the last zodiacal constellation to rise ahead of the sun, or the first to set after it. Obviously, the sun had to be somewhere in between. As such, each month a specific constellation was conferred the title of "House of the sun," and in this manner each month-long period of the year was given its "sign of the Zodiac. Interestingly, however, the "sign" which has been assigned for a given The Ecliptic in the horoscope that you'll find in your daily newspaper is not where The Ecliptic sun actually is for that particular month, but where it would have been several millennia ago! This is due to the "wobble" of the Earth's axis known as precession ; The Ecliptic today's astrologers, who believe that the sun, moon and planets mysteriously direct our lives, continue to adhere to star positions that for all intents and purposes are out of date by thousands of years! In addition, the ecliptic crosses through the constellation of Ophiuchus, the Serpent Holder. In fact, the sun spends more time traversing through Ophiuchus than nearby Scorpius! It officially resides in Scorpius for The Ecliptic than a week: from Nov. It then moves into Ophiuchus onNovember 30 and remains within its boundaries for more than two weeks — untilDec. And yet the Serpent Holder is not considered a member of the Zodiac and so must defer to Scorpius! In addition, because the Moon and planets are often positioned either just to the north or south of the ecliptic, it allows them to sometimes appear within the boundaries of a number of other non- zodiacal star patterns. Although the moon's orbit is inclined 5. Should this happen when the moon is at new phase, it will The Ecliptic up crossing The Ecliptic front of the sun causing a solar eclipse. If the moon crosses over The Ecliptic ecliptic when the moon is at The Ecliptic phase, it will pass into the shadow of the Earth resulting in a lunar eclipse. Usually The Ecliptic the new moon is in the vicinity of the sun it appears to The Ecliptic above or below it and no The Ecliptic occurs. Similarly, the full moon usually misses the Earth's shadow by sweeping above or below it. Only when all three bodies sun, Earth and The Ecliptic are on a straight line occupying the plane of the ecliptic can an eclipse occur. Join our Space Forums to keep talking space on the latest missions, night sky and more! And if you have a news tip, correction The Ecliptic comment, let us know at: community space. Please deactivate your ad blocker in order to see our subscription offer. From the Earth's perspective in late May and into June, the Sun lies along a line of sight to the The Ecliptic Taurus. Earlier in the year, the Sun would have appeared in Aries. As the Earth proceeds in its orbit around the Sun counterclockwise in this picturethe line of sight will point to Gemini, off the left side of the image. The ecliptic runs exactly along the middle of the Zodiac. The "Classic Twelve" Twelve constellations through which the ecliptic passes form the Zodiac. So in truth, there really aren't twelve zodiacal constellations, but twenty-two! Origin of "Ecliptic" Although the moon's orbit is inclined 5. Hence the name "ecliptic": the place where eclipses occur. Ecliptic - Wikipedia Goodreads The Ecliptic you keep track of books you want to read. Want to The Ecliptic saving…. Want to Read Currently Reading Read. Other editions. The Ecliptic cover. Error rating book. Refresh and try again. Open Preview See a Problem? Details if other :. Thanks for telling us about the problem. The Ecliptic to Book Page. Preview — The The Ecliptic by Benjamin Wood. On a forested island off the coast of Istanbul stands Portmantle, a gated refuge for beleaguered artists. There, a curious assembly of painters, architects, The Ecliptic and musicians strive to restore their faded talents. Elspeth 'Knell' Conroy is a celebrated painter who has lost faith in her ability and fled the dizzying art scene of s London. On the island, she spends h On a forested island off the coast of Istanbul stands Portmantle, The Ecliptic gated refuge for beleaguered artists. On the island, she spends her nights locked The Ecliptic her blacked-out studio, testing a strange new pigment for her elusive masterpiece. But when a disaffected teenager named Fullerton arrives at the refuge, he disrupts its established routines. He is plagued by a recurring nightmare that steers him The Ecliptic danger, and Knell is left to pick apart the chilling The Ecliptic. Where did the boy come from, what is 'The Ecliptic', and how does it relate to their abandoned lives in England? Get A Copy. Hardcoverpages. More Details Original Title. Other Editions Friend Reviews. To see what your friends thought of this book, please sign up. To ask The Ecliptic readers questions about The Eclipticplease sign up. Did he really return after his trip to London or was that fantasy? Why did Jim abandon Elspeth? Was there any significance in Q, Tif and Mac? Did they represent something in The Ecliptic real life? Karen I experienced the same confusion and had the exact same questions as you after reading this book! Or another possibility could be that Jim might have been in the cottage and Elspeth did spend some time with him there, but he abandoned her after he left for his trip to London and she fantasized his return and everything after that. His departure is when she starts showing definite signs of a breakdown, because she was grinding up her pills to use in her The Ecliptic instead of medicating herself with them. Jim knew that Elspeth was a more gifted painter than he was, and he wanted to give her the time and space to concentrate on her work without being distracted by the demands of a relationship. Maybe he also wanted to give himself a chance to develop his own talent. Since Fullerton turned out to be Jonathan Yail, the son of her friend Victor, then Q, Tif, and Mac could also have been fantasy manifestations of other people she knew in her real life perhaps her old art teacher Henry Holden, the art critic Wilfred Searle, and her agent Dulcie, respectively? Or maybe they The Ecliptic represented the kind of friends that Elspeth wished she had in real life — artists just as gifted as she was but also suffering from the The Ecliptic blocked muse. Does anyone else have any ideas? See 1 question about The Ecliptic…. Lists with This Book. Community Reviews. Showing Average rating 3. Rating details. More filters. Sort order. Start your review The Ecliptic The Ecliptic. Feb 22, Blair rated it it was amazing Shelves: favouritescults- communes-captivityThe Ecliptichistoricalekphrasis. Review originally published at Learn This Phrase. The Ecliptic : I had a good feeling about this book. The first time I heard about it was, unsurprisingly, on Twitter, when those with early review copies began talking about it in reverent tones, implying it would be one of the best novels of the year.
Load more

Recommended publications
  • HST Phase II Proposal Instructions for Cycle 15
    Version 15.0 3/29/06 HST Phase II Proposal Instructions for Cycle 15 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 14.0 GO March 2005 David Soderblom and Jim Younger 15.0 GO March 2006 Ron Downes and Jim Younger • Updated for Phase II Cycle 15 (See Section 1.2, “Changes Since the Previous Version,” on page 4) Version 15.0 is issued in coordination with the APT release and is intended to be fully compliant with Cycle 15 APT. This is the General Observer version. If you would like some hints on how to read and use the PDF document, click on: 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 15 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 Version....................... 4 1.3 Document Presentation ..............................................
    [Show full text]
  • A Personal History of H.M
    A PERSONAL HISTORY OF H.M. NAUTICAL ALMANAC OFFICE 30 October 1930 - 18 February 1972 By Donald H. Sadler Edited by George A. Wilkins SIDFORD, DEVON, 2008 2 DONALD H. SADLER © Copyright United Kingdom Hydrographic Office, 2008 A Personal History of H. M. Nautical Almanac Office by Dr. Donald H. Sadler, Superintendent of HMNAO 1936-1970, is a personal memoir; it does not represent the views of, and is not endorsed by, HMNAO or the United Kingdom Hydrographic Office. The United Kingdom Hydrographic Office grants permission to reproduce the document, in whole or in part, provided that it is reproduced unchanged and with the copyright notice intact. The photograph of Sadler taken when President, is reproduced by kind permission of the Royal Astronomical Society (RAS). If you wish to reproduce this picture, please contact the Librarian, Royal Astronomical Society, Burlington House, Piccadilly, London, W1J 0BQ, United Kingdom. This work may be downloaded from HMNAO’s website at http://www.hmnao.com/history PERSONAL HISTORY OF H.M. NAUTICAL ALMANAC OFFICE, 1930-1972 3 SUMMARY OF CONTENTS Preface 10 Forewords by Donald H. Sadler 13 Prologue 15 Part 1: At Greenwich: 1930–1936 17 1. First impressions 17 2. Mainly about the work of the Office 22 3. Mainly about L. J. Comrie and his work 30 Part 2: At Greenwich: 1936–1939 39 4. Change and expansion 39 5. New developments 46 6. Procedures and moves 53 Part 3: At Bath: 1939–1949 57 7. Early days at Bath (before the move to Ensleigh) 57 8. From the move to Ensleigh to the end of the war 67 9.
    [Show full text]
  • 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 ........................................................
    [Show full text]
  • Heliospheric Coordinate Systems
    Planetary and Space Science 50 (2002) 217–233 www.elsevier.com/locate/planspasci Heliospheric coordinate systems M.Fr"anza;∗, D. Harperb aAstronomy Unit, Queen Mary, University of London, London, E1 4NS, UK bThe Sanger Centre, Wellcome Trust Genome Campus, Hinxton, Cambs CB10 1SA, UK Received 18 January 2001; received in revised form 18 July 2001; accepted 18 September 2001 Abstract This article gives an overview and reference to the most common coordinate systems currently used in space science. While coordinate systems used in near-Earth space physics have been described in previous work we extend that description to systems used for physical observations of the Sun and the planets and to systems based on spacecraft location. For all systems, we deÿne the corresponding transformation in terms of Eulerian rotation matrices. We also give ÿrst order Keplerian elements for planetary orbits and determine their precision for the period 1950–2050 and describe methods to improve that precision. We also determine the Keplerian orbital elements for most major interplanetary missions and discuss their precision. We also give reference to a large set of web-sources relevant to the subject. ? 2002 Elsevier Science Ltd. All rights reserved. Keywords: Coordinate systems; Orbital elements; Coordinate transformations 1. Introduction We base all calculations on the current edition of the Astronomical Almanac (2000), hereafter cited as A 2 and Coordinate systems used in near-Earth space physics have the Expl. Suppl. (1992), hereafter cited as S. This means been well covered by the works of Russell (1971) and that the base system of astronomical constants used is the Hapgood (1992).
    [Show full text]
  • Heliospheric Coordinate Systems
    Heliospheric Coordinate Systems M.Franz¨ Astronomy Unit, Queen Mary, University of London, London, E1 4NS ∗ D. Harper The Sanger Centre, Wellcome Trust Genome Campus, Hinxton, Cambs CB10 1SA Corrected Version of Planetary&Space Science, 50, 217ff.(2002) March 13, 2017 Abstract This article gives an overview and reference to the most common coordinate systems currently used in space science. While coordinate systems used in near-Earth space physics have been described in previous work we extend that description to systems used for physical observations of the Sun and the planets and to systems based on spacecraft location. For all systems we define the corresponding transformation in terms of Eulerian rotation matrices. We also give first order Keplerian elements for planetary orbits and determine their precision for the period 1950-2050 and describe methods to improve that precision. We also determine the Keplerian orbital elements for most major interplanetary missions and discuss their precision. We also give reference to a large set of web-sources relevant to the subject. Discipline: b. Celestial Mechanics. 1 Introduction Coordinate systems used in near-Earth space physics have been well covered by the works of Russell (1971) and Hapgood (1992). But there has been a lack of publicly available documentation on coordinate systems used in heliospheric space missions and in many cases the information does not seem comprehensive enough for reference purposes1. Specifically descriptions of systems based on the physical ephemeris of the Sun and planets and systems based on spacecraft position are currently not available in a form that makes the relation between both systems easy to understand.
    [Show full text]
  • HST Phase II Proposal Instructions for Cycle 12 (RPS2)
    Version 12.1.0 (RPS2) 3/28/03 HST Phase II Proposal Instructions for Cycle 12 (RPS2) Hubble 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 12.1.0 GO and March 2003 David Soderblom (RPS2) ENG • Cycle 12 Initial Release • Version 12.1.0 (RPS2) was issued in coordination with RPS2 release 12.1. It is intended to be fully compliant with Cycle 12 RPS2. • Shelf life: This version should not be used after May 16, 2003 with- out checking for a more recent version. This is the General Observer version. If you would like some hints on how to read and use the PDF document, click on: Some PDF Pointers 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). 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 12 (RPS2) 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 Version....................... 4 1.3 Document Presentation ............................................... 4 1.4 Technical Content ........................................................
    [Show full text]
  • University of Nottingham Department of Civil
    UNIVERSITY OF NOTTINGHAM DEPARTMENT OF CIVIL ENGINEERING DETERMINATION OF SATELLITE ORBITS AND THE GLOBAL POSITIONING SYSTEM by Loukis George Agrotis~ B.Sc.~ M.Inst. C.E.S. ; • i Thesis submitted to the University of Nottingham for the degree of Doctor of Philosophy October 1984 ii TABLE OF CONTENTS ABSTRACT ix ACKNOWLEDGEMENTS xi LIST OF FIGURES xiii CHAPTER 1 INTRODUCTION 1 CHAPTER 2 SATELLITE ORBIT DETERMINATION 2.1 Basic Concepts 7 2.2 COORDINATE REFERENCE FRAMES AND TIME SCALES 2.2.1 Reference Frames and Time 10 2.2.2 Precession and Nutation 13 2.2.3 Earth Rotation and Polar Motion 21 2.2.4 Coordinate Transformations 28 2.3 FORCE MODEL COMPONENTS 2.3. 1 Introduction 28 2.3.2 Earth Gravitational Attraction 29 ..... ,.. ," .. , ., . , Moon, Sun and Planetary Attractions, .::>. 32 2.3.3 t.. 2.3.4 Solid Earth Tides 35 2.3.5 Ocean Tides 43 2.3.6 Empirical Accelerations 45 , .. iii Page 2.3.7 Air Drag 46 2.3.8 Solar and Albedo Radiation 49 2.3.9 Satellite Thrust 55 2.4 NUMERICAL INTEGRATION OF THE EQUATIONS OF MJTION 2.4.1 Equations of Motion 56 2.4.2 Numerical Integration of Differential Equations 57 2.5 LEAST SQUARES ADJUSTMENT AND PARTIAL DERIVATIVES 2.5.1 The Satellite Observations 65 2.5.2 Least Squares Adjustment 67 2.5.3 The Orbit Determination Observation Equations 73 2.5.4 Orbit Determination Adjustment Requirements 82 CHAPTER 3 UNIVERSITY OF NOTTINGHAM ORBIT DETERMINATION SOFTWARE 3.1 Introduction 86 3.2 CHEBYSHEV POLYNOMIAL PROGRAM (CHEBPOL) 3.2.
    [Show full text]
  • Periodicity Formulas: Definitions
    PERIODICITY FORMULAS: Sidereal Orbit (365.25636042 + 1.1 x 10-7 TE) days Tropical Year (365.24219878 - 6.14 x 10-6 TE) days Eclipse Year (346.620031 + 3.2 x 10-5 TE) days Anomalistic Year (365.25964134 + 3.04 x 10-6 TE) days Sidereal Lunar Orbit (27.3216610 - 2.0 x 10-7 T) days Lunar Mean Daily Sidereal Motion (13.1763582975 - 1.0224 x 10-8 T)° Lunar Synodical Period (29.5305992 - 2.0 x 10-7 T) days Centenial General Precession (1.396291666... + 0.0006180555...T)° Longitude Given TE = Julian centuries from day 0.5, 1900 ET Given T = Tropical centuries from 1900.0 N DEFINITIONS: Sidereal Orbit is a revolution relative to a fixed celestial position. Sidereal Noon is the instant of transit of mean equinox relative to a fixed meridian position. Fundamental Epoch (FE) is the instant 12 hours, 0 days, 1900 years A.D. with hours in mean sidereal of Sidereal Time time. Ephemeris Time is the actual count of solar days from a fixed meridian. Tropical Year (YT) is the period from equinox to equinox. Eclipse Year (YE) is the period between the earth and lunar orbit planes node crossings. Temporal Unit (TU) is 36,525 mean solar days since Jan. 0.5, 1900, UT. Greenwich Mean = 0.0 hours UT = 12 hours + aFMS Sidereal Time (GT) has replaced Mean Solar Time due to a recognition of the non-uniform rotation Universal Time (UT) rate of the earth. Lunar Synodic Period is the period of time from one full or new moon to another, that is the time (S9) between consecutive alignments of the sun, earth and moon on a plane perpendicular to the plane of solar revolution.
    [Show full text]