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Journal Issue 26 | October 2019
journal Issue 26 | October 2019 Communicating Astronomy with the Public Spotlighting a Black Hole What did it take to create the largest outreach campaign for an astronomical result? Tactile Subaru A project to make telescope technology accessible Naming ExoWorlds Update on the IAU100 NameExoWorlds campaign www.capjournal.org As part of the 100th anniversary commemorations, the International Astronomical Union (IAU) is organising the IAU100 NameExoWorlds global competition to allow any country in the world to give a popular name to a selected exoplanet and its News News host star. The final results of the competion will be announced in Decmeber 2019. Credit: IAU/L. Calçada. Editorial Welcome to the 26th edition of the CAPjournal! To start off, the first part of 2019 brought in a radical new era in astronomy with the first ever image showing a shadow of a black hole. For CAPjournal #26, part of the team who collaborated on the promotion of this image hs written a piece to show what it took to produce one of the largest astronomy outreach campaigns to date. We also highlight two other large outreach campaigns in this edition. The first is a peer-reviewed article about the 2016 solar eclipse in Indonesia from the founder of the astronomy website lagiselatan, Avivah Yamani. Next, an update on NameExoWorlds, the largest IAU100 campaign, as we wait for the announcement of new names for the ExoWorlds in December. Additionally, this issue touches on opportunities for more inclusive astronomy. We bring you a peer-reviewed article about outreach for inclusion by Dr. Kumiko Usuda-Sato and the speech “Diversity Across Astronomy Can Further Our Research” delivered by award-winning astronomy communicator Dr. -
Occdhtlm3newstelter
OccdhtlM3Newstelter Volume II, Number 10 january, 1981 Occultation Newsletter is published by the International Occultation Timing Association. Editor and Compositor: H. F. DaBo11; 6 N 106 White Oak Lane; St. Charles, IL 60174; U.S.A. Please send editorial matters to the above, but send address changes, requests, matters of circulation, and other IOTA business to IOTA; P.0. Box 596; Tinley Park; IL 60477; U.S.A. NOTICE TO LUNAR OCCULTATION OBSERVERS paho1. by contacting Sr. Francisco Diego Q., Ixpan- tenco 26-bis, Real dc Ids Reyes, Coyoacdn, Mexico, L. V. Morrison D.F., Mexico. Currently, however, the Latin American Section is experiencing problems with funding, and On 1981 January 1 the international centre for the for the time being, it may be necessary for would-be receipt of timings of occultations of stars by the IOTA/LAS members to subscribe to the English-lan- Moon will be transferred from HM Nautical Almanac guage edition of o.n., or to join the parent IOTA. Office, Royal Greenwich Observatory, England to As- tronomical Division, Hydrographic Department, Japan IOTA NEWS "' From that date observers should send their lunar oc- cultation reports and any correspondence connected David W. Dunham with lunar occultations to the following address: As of 1981 January 1, H. M. Nautical Almanac Office, Astronomical Division at the Royal Greenwich Observatory, England, will Hydrographic Department discontinue collecting observations of lunar occul- Tsukiji-5 tations. After that date, observers should send Chuo-ku, Tokyo their reports to the new International Occultation 104 JAPAN Centre in japan, as described in this issue's lead article. -
Glossary of Marine Navigation 798
GLOSSARY OF MARINE NAVIGATION 798 The main cause, however, appears to be the winds which prevail from south through west to northwest over 50 percent of the time throughout the year and the transverse flows from the English coast toward the Skaggerak. The current retains the characteristics of a J major nontidal current and flows northeastward along the northwest coast of Denmark at speeds ranging between 1.5 to 2.0 knots 75 to 100 percent of the time. Jacob’s staff. See CROSS-STAFF. jamming, n. Intentional transmission or re-radiation of radio signals in such a way as to interfere with reception of desired signals by the K intended receiver. Janus configuration. A term describing orientations of the beams of acoustic or electromagnetic energy employed with doppler naviga- Kaléma, n. A very heavy surf breaking on the Guinea coast during the tion systems. The Janus configuration normally used with doppler winter, even when there is no wind. sonar speed logs, navigators, and docking aids employs four beams Kalman filtering. A statistical method for estimating the parameters of a of ultrasonic energy, displaced laterally 90° from each other, and dynamic system, using recursive techniques of estimation, mea- each directed obliquely (30° from the vertical) from the ship’s bot- surement, weighting, and correction. Weighting is based on vari- tom, to obtain true ground speed in the fore and aft and athwartship ances of the measurements and of the estimates. The filter acts to directions. These speeds are measured as doppler frequency shifts reduce the variance of the estimate with each measurement cycle. -
Lunar Nodes Keys to Emotions and Life Experience
Lunar Nodes Keys To Emotions and Life Experience Diane Ronngren Copyright 2012 ETC Publishing All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical including photocopying or recording, or by any information storage and retrieval system without written permission from the author and publisher, except in the case of brief quotations embodied in critical reviews and articles. ETC Publishing www.etcpublishing.com ISBN 978 -1-930038-55-4 Cover design and graphics by Gary Dunham Dedication To my mother, Norma, who gave me life, taught me the values inherent in my South Node in Libra and inspired me to pursue the possibilities of my North Node in Aries. To Family, who have always encouraged my life journey. Table of Contents Introduction ......................................................................................7 Chapter 1 - Symbols of Destiny ........................................................ 9 Chapter 2 - Node Basics .................................................................. 20 Chapter 3 - Lunar Nodes, Signs and Houses .................................. 26 Aries North Node / Libra South Node ....................................... 26 1st House North Node / 7th House South Node Taurus North Node / Scorpio South Node ................................. 29 2nd House North Node / 8th House South Node Gemini North Node / Sagittarius South Node ........................... 33 3rd House North Node / 9th House South Node Cancer North Node / Capricorn South Node ............................. 36 4th House North Node / 10th House South Node Leo North Node / Aquarius South Node .................................... 39 5th House North Node / 11th House South Node Virgo North Node / Pisces South Node ..................................... 42 6th House North Node / 12th House South Node Libra North Node / Aries South Node ....................................... 45 7th House North Node / 1st House South Node Scorpio North Node / Taurus South Node ................................ -
Looking at Eclipses from Both Sides
Firefox https://cdn.mc-weblink.sg-mktg.com/weblink/MTYyMzAzOTc5N3xKe... Email not displaying correctly? View it in your browser. Looking at Eclipses from Both Sides by Zane B Stein If you have looked at eclipses astrologically you may have noticed a strange fact: the time that astronomers list for the time of maximum eclipse is usually different than the one your astrology program gives you, and sometimes the difference can be quite a few minutes. Why is that? We can give you a clear explanation, and then we can show you how you can adjust a setting (in both Solar Fire, and Astro Gold for Mac), so that you can calculate the charts for the times of both the astrological and the astronomical eclipses. 1 of 4 6/7/2021, 11:18 AM Firefox https://cdn.mc-weblink.sg-mktg.com/weblink/MTYyMzAzOTc5N3xKe... Let’s begin by comparing the eclipse definitions. Astronomical Definition: According to NASA, "An eclipse occurs when one heavenly body such as a moon or planet moves into the shadow of another heavenly body." During a Lunar Eclipse, the “Earth moves between the Sun and the Moon, Earth blocks the sunlight instead of light hitting the Moon's surface, and Earth's shadow falls on the Moon," but if it is a Solar Eclipse, “the Moon moves between the Sun and Earth, the Moon blocks the light of the Sun instead of light hitting the Earth's surface, and the Moon's shadow falls on the Earth.” Astrological Definition: When the Sun and Moon are at the exact same degree, minute and second of a sign (New Moon) or opposite signs (Full Moon), AND the lunation occurs not far from the North or South Lunar Nodes, you have, respectfully, a Solar or Lunar Eclipse. -
Cislunar Tether Transport System
FINAL REPORT on NIAC Phase I Contract 07600-011 with NASA Institute for Advanced Concepts, Universities Space Research Association CISLUNAR TETHER TRANSPORT SYSTEM Report submitted by: TETHERS UNLIMITED, INC. 8114 Pebble Ct., Clinton WA 98236-9240 Phone: (206) 306-0400 Fax: -0537 email: [email protected] www.tethers.com Report dated: May 30, 1999 Period of Performance: November 1, 1998 to April 30, 1999 PROJECT SUMMARY PHASE I CONTRACT NUMBER NIAC-07600-011 TITLE OF PROJECT CISLUNAR TETHER TRANSPORT SYSTEM NAME AND ADDRESS OF PERFORMING ORGANIZATION (Firm Name, Mail Address, City/State/Zip Tethers Unlimited, Inc. 8114 Pebble Ct., Clinton WA 98236-9240 [email protected] PRINCIPAL INVESTIGATOR Robert P. Hoyt, Ph.D. ABSTRACT The Phase I effort developed a design for a space systems architecture for repeatedly transporting payloads between low Earth orbit and the surface of the moon without significant use of propellant. This architecture consists of one rotating tether in elliptical, equatorial Earth orbit and a second rotating tether in a circular low lunar orbit. The Earth-orbit tether picks up a payload from a circular low Earth orbit and tosses it into a minimal-energy lunar transfer orbit. When the payload arrives at the Moon, the lunar tether catches it and deposits it on the surface of the Moon. Simultaneously, the lunar tether picks up a lunar payload to be sent down to the Earth orbit tether. By transporting equal masses to and from the Moon, the orbital energy and momentum of the system can be conserved, eliminating the need for transfer propellant. Using currently available high-strength tether materials, this system could be built with a total mass of less than 28 times the mass of the payloads it can transport. -
8.G on the Originality of Indian Mathematical Astronomy
8.g On the originality of Indian Mathematical Astronomy Raymond Mercier1 Introduction Indian astronomy has been the object of intense study by Western scholars since the seventeenth century, before that by generations of Arabic scholars, and of course by Indian scholars themselves over the centuries. Nevertheless we continue to have disputes about the very nature of the subject, illustrating the fact, I suppose, that Indian astronomy is never quite what it seems to be. In the past 35 years, there has been a particularly acrimonious dispute centred on the researches of Roger Billard and David Pingree, both now deceased. I will try to cover what seem to me to be the salient aspects of the matter. Method of Deviations Roger Billard in 1971 wrote his L’Astronomie indienne, at a time when Pingree’s researches were in full spate. Billard’s approach was essentially a refinement of what people have always done when approaching ancient or medieval astronomical texts, that is to carry out a comparison with the calculations made by means of modern astronomical parameters, as a ‘reality check’ in general, and by way of dating in particular. For example Neugebauer & van Hoesen published a collection of horoscopes from Greek literary and epigraphical sources, all of which were dated by means of 2 calculations from modern formulae. Billard’s results depended on plotting the ‘deviation curves’, that is the graph of the ancient mean longitude minus the modern, as a function of time. This was then subjected to a precise statistical analysis, mainly to fix the date of the text. -
Moon-Earth-Sun: the Oldest Three-Body Problem
Moon-Earth-Sun: The oldest three-body problem Martin C. Gutzwiller IBM Research Center, Yorktown Heights, New York 10598 The daily motion of the Moon through the sky has many unusual features that a careful observer can discover without the help of instruments. The three different frequencies for the three degrees of freedom have been known very accurately for 3000 years, and the geometric explanation of the Greek astronomers was basically correct. Whereas Kepler’s laws are sufficient for describing the motion of the planets around the Sun, even the most obvious facts about the lunar motion cannot be understood without the gravitational attraction of both the Earth and the Sun. Newton discussed this problem at great length, and with mixed success; it was the only testing ground for his Universal Gravitation. This background for today’s many-body theory is discussed in some detail because all the guiding principles for our understanding can be traced to the earliest developments of astronomy. They are the oldest results of scientific inquiry, and they were the first ones to be confirmed by the great physicist-mathematicians of the 18th century. By a variety of methods, Laplace was able to claim complete agreement of celestial mechanics with the astronomical observations. Lagrange initiated a new trend wherein the mathematical problems of mechanics could all be solved by the same uniform process; canonical transformations eventually won the field. They were used for the first time on a large scale by Delaunay to find the ultimate solution of the lunar problem by perturbing the solution of the two-body Earth-Moon problem. -
GCSE Astronomy Coursework
GCSE Astronomy Coursework A5 & B5 Drawings or Photos of Celestial Event Produce a series of drawings (A5) or detailed telescopic drawings or photographs (B5) to record the passage of a suitable celestial event, for example a transit, occultation or comet. Venus and Mercury are the two inferior planets (planets that orbit between the Earth and the Sun). Their orbits are slightly inclined with respect to the Earth’s orbital plane but sometimes they pass in between the Earth and the Sun – this is called a transit. Dates for the next set of transits can be found here: http://eclipse.gsfc.nasa.gov/transit/transit.html When an object is eclipsed by another object in the sky it is called an occultation. Information about future occultations and all other celestial events can be found here: www.theguardian.com/science/series/starwatch Comets are balls of ice and rock that exist in two regions in the outer Solar System: the Kuiper Belt and the Oort Cloud. Occasionally they are knocked and are sent flying past the planets. When they reach the Sun the ice sublimates leaving behind a tail. A list of visible comets can be found here: www.ast.cam.ac.uk/~jds/future.htm To locate objects use www.stellarium.org or alternatively download an app for your mobile: http://downloads.bbc.co.uk/tv/guides/ BBC_Stargazing_Live_2012_Mobile_App_guides.pdf To find sunrise, sunset, moonrise and moonset times and the phase of the Moon use www.timeanddate.com Check the weather forecast - www.metoffice.gov.uk See our useful guides for help on how to carry out observations and take photographs of various objects: www.rmg.co.uk/discover/astronomy- photographer-competition/how-to-guides For examples of reports with moderator comments visit the Edexcel GCSE Astronomy website: http://www.edexcel.com/quals/gcse/gcse09/ astronomy/Pages/default.aspx Here you will find two documents that will help you write a report: Under ‘Controlled assessment’ download ‘Controlled Assessment Teacher Support Book’ and under ‘Teacher Support Materials’ download ‘GCSE Astronomy Teachers Guide’. -
Highlight Events in Astronomy 2017 a Brief Look at the Year Ahead
Highlight events in Astronomy 2017 A brief look at the year ahead Vancouver, BC, January 1, 2017 – Conjunction of Mars, Venus, Moon: Jan 31st A conjunction marks one of the perfect viewing opportunities for people. A conjunction is when two or more objects appear close to each other in the night sky. On the 31st of January, Mars, Venus, and the moon will all be in the western sky, setting together. Watch for this spectacular and rare event right after sunset between the 29th and the 2nd, with the best opportunity on the 31st of January. You do not even need a telescope! Juno continues mission around Jupiter Juno arrived at Jupiter earlier in July of 2016, marking a historic feat in space exploration. Having a few minor hiccups in some of the tech on the craft, it has been working fantastically and has already helped us understand the largest planet in our solar system more. The mission continues and more and more data comes pouring in every day. The data has already surprised astronomers, and there is so much to still learn from this mission. Some of our major understandings of Jupiter are being altered because of the data from this mission. Lightsail 2 launches: March The Planetary Society has been pioneering a new way of space flight: riding along the waves of space using the Sun's energy as power. The Lightsail project is aiming to send their second prototype into space for deployment. Just like a sailboat, the Lightsail is pushed along by having a massive collection area where the light from the Sun pushes against the craft, slowly accelerating it. -
A Comparison of Astronomical Terminology and Concepts in China and Mesopotamia
A Comparison of Astronomical Terminology and Concepts in China and Mesopotamia J. M. Steele, University of Durham 1. Introduction An interest in the movement and appearance of the sun, moon, planets and stars can be traced back in contemporary written sources to at least the Old Babylonian period in Mesopotamia (first half of the second millennium BC) and to the Shang dynasty in China (mid to end of the second millennium BC). In Mesopotamia, Old Babylonian cuneiform tablets contain omens drawn from the appearance of lunar eclipses (Rochberg 2006) and schematic lists of the length of day and night throughout the year (Hunger and Pingree 1989, pp. 163–164). In China, references to astronomical phenomena such as eclipses and comets appear on the so-called ‘oracle bones’ (Xu, Yau and Stephenson 1989; Xu, Stephenson and Jiang 1995). Except for so-called ‘star-clocks’ and related astronomical material from ancient Egypt, no contemporary writings on astronomical subjects are known from other cultures this early. Although cuneiform texts containing astronomical material are preserved from all periods in the second and first millennium BC, material is very scarce until the Late Babylonian period (c. 750 BC to AD 100), with the vast majority of texts coming from the last four centuries BC. A similar situation holds for China: after the Shang dynasty oracle bones we only have a very few documents containing astronomical records (principally the Zhushujinian 竹書紀年 ‘The Bamboo Annals’ and the Chunqui 春秋 ‘The Spring and Autumn Annals’) until the second century BC. After this time we have an extensive and continuous tradition of astronomical writings contained within the 25 Zhengshi 正史, generally referred to in English as the ‘Dynastic Histories’, and many individual books on astronomical topics, down to modern times. -
Lunar Motion Motion A
2 Lunar V. Lunar Motion Motion A. The Lunar Calendar Dr. Bill Pezzaglia B. Motion of Moon Updated 2012Oct30 C. Eclipses 3 1. Phases of Moon 4 A. The Lunar Calendar 1) Phases of the Moon 2) The Lunar Month 3) Calendars based on Moon b). Elongation Angle 5 b.2 Elongation Angle & Phase 6 Angle between moon and sun (measured eastward along ecliptic) Elongation Phase Configuration 0º New Conjunction 90º 1st Quarter Quadrature 180º Full Opposition 270º 3rd Quarter Quadrature 1 b.3 Elongation Angle & Phase 7 8 c). Aristarchus 275 BC Measures the elongation angle to be 87º when the moon is at first quarter. Using geometry he determines the sun is 19x further away than the moon. [Actually its 400x further !!] 9 Babylonians (3000 BC) note phases are 7 days apart 10 2. The Lunar Month They invent the 7 day “week” Start week on a) The “Week” “moon day” (Monday!) New Moon First Quarter b) Synodic Month (29.5 days) Time 0 Time 1 week c) Spring and Neap Tides Full Moon Third Quarter New Moon Time 2 weeks Time 3 weeks Time 4 weeks 11 b). Stone Circles 12 b). Synodic Month Stone circles often have 29 stones + 1 xtra one Full Moon to Full Moon off to side. Originally there were 30 “sarson The cycle of stone” in the outer ring of Stonehenge the Moon’s phases takes 29.53 days, or ~4 weeks Babylonians measure some months have 29 days (hollow), some have 30 (full). 2 13 c1). Tidal Forces 14 c). Tides This animation illustrates the origin of tidal forces.