Astrophotography
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Glossary Glossary
Glossary Glossary Albedo A measure of an object’s reflectivity. A pure white reflecting surface has an albedo of 1.0 (100%). A pitch-black, nonreflecting surface has an albedo of 0.0. The Moon is a fairly dark object with a combined albedo of 0.07 (reflecting 7% of the sunlight that falls upon it). The albedo range of the lunar maria is between 0.05 and 0.08. The brighter highlands have an albedo range from 0.09 to 0.15. Anorthosite Rocks rich in the mineral feldspar, making up much of the Moon’s bright highland regions. Aperture The diameter of a telescope’s objective lens or primary mirror. Apogee The point in the Moon’s orbit where it is furthest from the Earth. At apogee, the Moon can reach a maximum distance of 406,700 km from the Earth. Apollo The manned lunar program of the United States. Between July 1969 and December 1972, six Apollo missions landed on the Moon, allowing a total of 12 astronauts to explore its surface. Asteroid A minor planet. A large solid body of rock in orbit around the Sun. Banded crater A crater that displays dusky linear tracts on its inner walls and/or floor. 250 Basalt A dark, fine-grained volcanic rock, low in silicon, with a low viscosity. Basaltic material fills many of the Moon’s major basins, especially on the near side. Glossary Basin A very large circular impact structure (usually comprising multiple concentric rings) that usually displays some degree of flooding with lava. The largest and most conspicuous lava- flooded basins on the Moon are found on the near side, and most are filled to their outer edges with mare basalts. -
8.5 X 13.5 Doublelines.P65
Cambridge University Press 978-0-521-74128-6 - Exploring the Solar System with Binoculars: A Beginner’s Guide to the Sun, Moon, and Planets Stephen James O’Meara’s Index More information Index Adams, John Couch, 96 Carrington, Richard C., 15 degree of condensation (DC) of, Agesinax, 24 Carroll, Lewis, 60 111–112 Aionwantha (Hiawatha), 45 Ceres, 70, 99–101 estimating the brightness of, Airy, George Biddell, 50, 51, 55 discovery and history as a planet, 111–112 Alcock, George, 116 99–100 In–Out method, 111 Allen, Richard Hinckley, 136 general description of, 99, Modified–Out method, 111–112 Alphonsus VI (King of Portugal), 104 100–101 experience helps in observing, 112 Andersen, Hans Christian, 92 how to find, 101 flaring in brightness, 111 Arago, Francois, 59 Chaikin, Andrew, 54 how to locate and identify, 110 Araki, Genichi, 116 Challis, James, 50 in history, relating to, 103–108 Arend, Silvio, 115 Chambers, George F., 8, 19 King David, 103 Aristotle, 65 Cheshire Cat, 60 Melville’s Moby-Dick, 107–108 Arlt, Rainer, 132 Children of God (cult), 108 Napoleon, 106 Arrehenius, Svente, 78, 79 Chinese Catalogue (Biot’s), 131–132 Shakespeare’s Julius Caesar, 103–104 Arter, T. R., 131 Cicero (Roman emperor), 77 the broadside of the comets of Asteroid Belt, 101 City of God, The, 90 1680 and 1682, 104 brightest objects in, 101–102 Collins, Peter, 116 the death of Julius Caesar, 104 asteroids Cometographia, 103 the Middle Ages, 104 2003 EH1, 131 comets, 103–117 the Old Testament?, 103 3200 Phaeton, 142 1P (Halley), 103, 109, 114–115, the whaling ship -
JRASC-2007-04-Hr.Pdf
Publications and Products of April / avril 2007 Volume/volume 101 Number/numéro 2 [723] The Royal Astronomical Society of Canada Observer’s Calendar — 2007 The award-winning RASC Observer's Calendar is your annual guide Created by the Royal Astronomical Society of Canada and richly illustrated by photographs from leading amateur astronomers, the calendar pages are packed with detailed information including major lunar and planetary conjunctions, The Journal of the Royal Astronomical Society of Canada Le Journal de la Société royale d’astronomie du Canada meteor showers, eclipses, lunar phases, and daily Moonrise and Moonset times. Canadian and U.S. holidays are highlighted. Perfect for home, office, or observatory. Individual Order Prices: $16.95 Cdn/ $13.95 US RASC members receive a $3.00 discount Shipping and handling not included. The Beginner’s Observing Guide Extensively revised and now in its fifth edition, The Beginner’s Observing Guide is for a variety of observers, from the beginner with no experience to the intermediate who would appreciate the clear, helpful guidance here available on an expanded variety of topics: constellations, bright stars, the motions of the heavens, lunar features, the aurora, and the zodiacal light. New sections include: lunar and planetary data through 2010, variable-star observing, telescope information, beginning astrophotography, a non-technical glossary of astronomical terms, and directions for building a properly scaled model of the solar system. Written by astronomy author and educator, Leo Enright; 200 pages, 6 colour star maps, 16 photographs, otabinding. Price: $19.95 plus shipping & handling. Skyways: Astronomy Handbook for Teachers Teaching Astronomy? Skyways Makes it Easy! Written by a Canadian for Canadian teachers and astronomy educators, Skyways is Canadian curriculum-specific; pre-tested by Canadian teachers; hands-on; interactive; geared for upper elementary, middle school, and junior-high grades; fun and easy to use; cost-effective. -
Explore 12 Great Lunar Targets Sharpen Your Observing Skills on the Moon’S Craters, Lava Flows, and an Elusive Letter X
Small-scope wonders 11 7 Explore 12 great lunar targets Sharpen your observing skills on the Moon’s craters, lava flows, and an elusive letter X. 2 1 by Michael E. Bakich he Moon offers something for every observer. It has a face that’s always changing. Following it telescopically T through a lunar month can be fascinating. Ironically, when the Moon is brightest (Full Moon) is the worst time to view it. From our perspective, the Sun is shining on the Moon from a point directly behind us, minimizing shad- ows and thus revealing scant detail. 4 The best lunar viewing times are from when the thin cres- 5 cent becomes visible after New Moon until about 2 days after First Quarter (evening sky) and from about 2 days before Last Quarter to almost New Moon (morning sky). Shadows are lon- ger then, and features stand out in sharp relief. 8 This is especially true along the Moon’s shadow line — called the terminator — which divides the light and dark portions. Before Full Moon, the terminator shows where sunrise is occur- 12 ring; after Full Moon, it marks the sunset line. 6 10 Along the terminator, you’ll see mountaintops protruding high enough to catch sunlight while the dark lower terrain sur- rounds them. On large crater floors, you can follow “wall shad- ows” cast by sides of craters hundreds of feet high. All these 1 Archimedes Crater lies at 30° north latitude centered between the features seem to change in real time, and the differences you eastern and western limbs. -
July 2020 in This Issue Online Readers, ALPO Conference November 6-7, 2020 2 Lunar Calendar July 2020 3 Click on Images an Invitation to Join ALPO 3 for Hyperlinks
A publication of the Lunar Section of ALPO Edited by David Teske: [email protected] 2162 Enon Road, Louisville, Mississippi, USA Recent back issues: http://moon.scopesandscapes.com/tlo_back.html July 2020 In This Issue Online readers, ALPO Conference November 6-7, 2020 2 Lunar Calendar July 2020 3 click on images An Invitation to Join ALPO 3 for hyperlinks. Observations Received 4 By the Numbers 7 Submission Through the ALPO Image Achieve 4 When Submitting Observations to the ALPO Lunar Section 9 Call For Observations Focus-On 9 Focus-On Announcement 10 2020 ALPO The Walter H. Haas Observer’s Award 11 Sirsalis T, R. Hays, Jr. 12 Long Crack, R. Hill 13 Musings on Theophilus, H. Eskildsen 14 Almost Full, R. Hill 16 Northern Moon, H. Eskildsen 17 Northwest Moon and Horrebow, H. Eskildsen 18 A Bit of Thebit, R. Hill 19 Euclides D in the Landscape of the Mare Cognitum (and Two Kipukas?), A. Anunziato 20 On the South Shore, R. Hill 22 Focus On: The Lunar 100, Features 11-20, J. Hubbell 23 Recent Topographic Studies 43 Lunar Geologic Change Detection Program T. Cook 120 Key to Images in this Issue 134 These are the modern Golden Days of lunar studies in a way, with so many new resources available to lu- nar observers. Recently, we have mentioned Robert Garfinkle’s opus Luna Cognita and the new lunar map by the USGS. This month brings us the updated, 7th edition of the Virtual Moon Atlas. These are all wonderful resources for your lunar studies. -
Facts & Features Lunar Surface Elevations Six Apollo Lunar
Greek Mythology Quadrants Maria & Related Features Lunar Surface Elevations Facts & Features Selene is the Moon and 12 234 the goddess of the Moon, 32 Diameter: 2,160 miles which is 27.3% of Earth’s equatorial diameter of 7,926 miles 260 Lacus daughter of the titans 71 13 113 Mare Frigoris Mare Humboldtianum Volume: 2.03% of Earth’s volume; 49 Moons would fit inside Earth 51 103 Mortis Hyperion and Theia. Her 282 44 II I Sinus Iridum 167 125 321 Lacus Somniorum Near Side Mass: 1.62 x 1023 pounds; 1.23% of Earth’s mass sister Eos is the goddess 329 18 299 Sinus Roris Surface Area: 7.4% of Earth’s surface area of dawn and her brother 173 Mare Imbrium Mare Serenitatis 85 279 133 3 3 3 Helios is the Sun. Selene 291 Palus Mare Crisium Average Density: 3.34 gm/cm (water is 1.00 gm/cm ). Earth’s density is 5.52 gm/cm 55 270 112 is often pictured with a 156 Putredinis Color-coded elevation maps Gravity: 0.165 times the gravity of Earth 224 22 237 III IV cresent Moon on her head. 126 Mare Marginis of the Moon. The difference in 41 Mare Undarum Escape Velocity: 1.5 miles/sec; 5,369 miles/hour Selenology, the modern-day 229 Oceanus elevation from the lowest to 62 162 25 Procellarum Mare Smythii Distances from Earth (measured from the centers of both bodies): Average: 238,856 term used for the study 310 116 223 the highest point is 11 miles. -
What's Hot on the Moon Tonight?: the Ultimate Guide to Lunar Observing
What’s Hot on the Moon Tonight: The Ultimate Guide to Lunar Observing Copyright © 2015 Andrew Planck All rights reserved. No part of this book may be reproduced in any written, electronic, recording, or photocopying without written permission of the publisher or author. The exception would be in the case of brief quotations embodied in the critical articles or reviews and pages where permission is specifically granted by the publisher or author. Although every precaution has been taken to verify the accuracy of the information contained herein, the publisher and author assume no responsibility for any errors or omissions. No liability is assumed for damages that may result from the use of information contained within. Books may be purchased by contacting the publisher or author through the website below: AndrewPlanck.com Cover and Interior Design: Nick Zelinger (NZ Graphics) Publisher: MoonScape Publishing, LLC Editor: John Maling (Editing By John) Manuscript Consultant: Judith Briles (The Book Shepherd) ISBN: 978-0-9908769-0-8 Library of Congress Catalog Number: 2014918951 1) Science 2) Astronomy 3) Moon Dedicated to my wife, Susan and to my two daughters, Sarah and Stefanie Contents Foreword Acknowledgments How to Use this Guide Map of Major Seas Nightly Guide to Lunar Features DAYS 1 & 2 (T=79°-68° E) DAY 3 (T=59° E) Day 4 (T=45° E) Day 5 (T=24° E.) Day 6 (T=10° E) Day 7 (T=0°) Day 8 (T=12° W) Day 9 (T=21° W) Day 10 (T= 28° W) Day 11 (T=39° W) Day 12 (T=54° W) Day 13 (T=67° W) Day 14 (T=81° W) Day 15 and beyond Day 16 (T=72°) Day 17 (T=60°) FINAL THOUGHTS GLOSSARY Appendix A: Historical Notes Appendix B: Pronunciation Guide About the Author Foreword Andrew Planck first came to my attention when he submitted to Lunar Photo of the Day an image of the lunar crater Pitatus and a photo of a pie he had made. -
Communications of the LUNAR and PLANETARY LABORATORY
Communications of the LUNAR AND PLANETARY LABORATORY Number 70 Volume 5 Part 1 THE UNIVERSITY OF ARIZONA 1966 Communications of the Lunar and Planetary Laboratory These Communications contain the shorter publications and reports by the staff of the Lunar and Planetary Laboratory. They may be either original contributions, reprints of articles published in professional journals, preliminary reports, or announcements. Tabular material too bulky or specialized for regular journals is included if future use of such material appears to warrant it. The Communications are issued as separate numbers, but they are paged and indexed by volumes. The Communications are mailed to observatories and to laboratories known to be engaged in planetary, interplanetary or geophysical research in exchange for their reports and publica- tions. The University of Arizona Press can supply at cost copies to other libraries and interested persons. The University of Arizona GERARD P. KUIPER, Director Tucson, Arizona Lunar and Planetary Laboratory Published with the support of the National Aeronautics and Space Administration Library of Congress Catalog Number 62-63619 NO. 70 THE SYSTEM OF LUNAR CRATERS, QUADRANT IV by D. W. G. ARTHUR, RUTH H. PELLICORI, AND C. A. WOOD May25,1966 , ABSTRACT The designation, diameter, position, central peak information, and state of completeness are listed for each discernible crater with a diameter exceeding 3.5 km in the fourth lunar quadrant. The catalog contains about 8,000 items and is illustrated by a map in 11 sections. hiS Communication is the fourth and final part of listed in the catalog nor shown in the accompanying e System of Lunar Craters, which is a_calalag maps. -
The Lunar X Files: a Fleeting Vision Near the Crater Werner David M.F
The Lunar X Files: a fleeting vision near the illumination of the Sun. The interplay of these two crater Werner parameters leads to countless lunar landscape views, luring dedicated observers back time and David M.F. Chapman time again to observe, sketch, and photograph the RASC Halifax Centre Moon. On any night, good lunar hunting is found [email protected] at the terminator, that is, the line of demarcation between the dark and light portions of the lunar Introduction disk. The term "line" is used very loosely here, as the terminator can become fairly convoluted, Every month—or to be more precise, every especially in rough areas. In extreme cases, one 29.530589 days—the Moon cycles through its can see mountain peaks and crater walls that have phases and alternately reveals and hides the been "caught in a noose of light"1 and stand out features on its surface. As experienced lunar brilliantly against the surrounding blackness. This observers know, the appearance of a particular high contrast is aided by the lack of an atmo- surface feature depends on the relief of the feature sphere on the Moon, as there is nothing to scatter (that is, the height of the feature above or below sunlight into the shadows and soften the lighting. the surrounding terrain) and the angle of the Are there any astronomers out there who yet to watch sunrise on a prominent lunar feature? A particularly striking phenomenon occurs at the terminator around First Quarter phase: an illuminated X shape that appears for an hour or so at lunar coordinates (25.5S, 1.1E) just northwest of the crater Werner. -
June 2021 Click on Images in This Issue for Hyperlinks
A Publication of the Lunar Section of ALPO Edited by David Teske: [email protected] 2162 Enon Road, Louisville, Mississippi, USA Back issues: http://www.alpo-astronomy.org/ Online readers, June 2021 click on images In This Issue for hyperlinks Observations Received 2 By the Numbers 3 Overlooked, R. Hill 4 Mare Crisium Region, H. Eskildsen 5 In and Around Ancient Thebit, D. Teske 6 Some Secondary Craters of Copernicus in the Terminator, A. Anunziato 8 Changes, R. Hill 9 Southern Mare Imbrium, F. A. Cardinalli and A. Anunziato 10 A Channel Between the Seas, R. Hill 11 Three Wrinkle Ridges Southwest Mons Rümker, A. Anunziato 12 Little Ina, R. Hill 14 Recent Lunar Topographic Studies 15 Lunar Geologic Change Detection Program, T. Cook 34 ALPO 2021 Conference News 43 Lunar Calendar June 2021 45 An Invitation to Join ALPO 45 Submission Through the ALPO Image Achieve 46 When Submitting Observations to the ALPO Lunar Section 47 Call For Observations Focus-On 47 Focus-On Announcement 48 Key to Images in this Issue 49 I always learn so much putting The Lunar Observer together. In this issue, there are insightful articles about the lunar terrain by Alberto Anunziato, Rik Hill, Howard Eskildsen and David Teske. Howard again analyzes his images and finds some new (to him and I) concentric craters. What is hiding in your obser- vations waiting to be discovered? As always, Tony Cook provides a thorough investigation of Lunar Geologic Change. This past month I began the long process of scanning the many index cards by Winnie Cameron of Lunar Transient Phenomenon. -
May 2021 the Lunar Observer by the Numbers
A Publication of the Lunar Section of ALPO Edited by David Teske: [email protected] 2162 Enon Road, Louisville, Mississippi, USA Back issues: http://www.alpo-astronomy.org/ Online readers, May 2021 click on images In This Issue for hyperlinks Observations Received 2 By the Numbers 4 Stöfler and Maurolycus Region, H. Eskildsen 5 North-ish, R. Hill 6 Medii to Delaunay and a Concentric Crater, H. Eskildsen 7 The Greatest Crater? R. Hill 8 The Glorious Rupes Cauchy, A. Anunziato 9 The Western Chain on the Eastern Moon, H. Eskildsen 10 A Scarp by any Other Name, R. Hill 11 Mädlers Bright Streak, Ray or Elevation? A. Anunziato 12 Caucasus to Mare Vaporum, Close-Up Images of Aristillus, Autolycus and Putredinis Domes, H. Eskildsen 15 Images of Crater Schickard, J. D. Sabia 17 Another Trio, R. Hill 18 Mare Vaporum to Sinus Medii and Associated Domes, H. Eskildsen 19 Focus-On: The Lunar 100 Features 61-70, J. Hubbell 21 Lunar 61-70, A. Anunziato 24 Mösting A, R. H. Hays, Jr. 26 Hortensius and Domes, R. H. Hays, Jr. 53 Mare Humboldtianum, the Other Multi-Ring Lunar Basin, D. Teske 75 Recent Lunar Topographic Studies 81 Lunar Geologic Change Detection Program, T. Cook 100 ALPO 2021 Conference News 108 Lunar Calendar May 2021 110 An Invitation to Join ALPO 110 Submission Through the ALPO Image Achieve 111 When Submitting Observations to the ALPO Lunar Section 112 Call For Observations Focus-On 112 Focus-On Announcement 113 Key to Images in this Issue 114 The May issue of The Lunar Observer features a number of interesting articles by Howard Eskildsen, Rob- ert H. -
What's Hot on the Moon Tonight Book Excerpt
Foreword by Charles Wood Contents Foreword (by Charles Wood) . vii Acknowledgments . ix How to Use this Guide . xi Map of Major Seas . xvii Nightly Guide to Lunar Features Days 1 & 2 . 1 Day 3 . 5 Day 4 . 17 Day 5 . 27 Day 6 . 45 Day 7 . 59 Day 8 . 93 Day 9 . 115 Day 10 . 133 Day 11 . 149 Day 12 . 163 Day 13 . 171 Day 14 . 179 Day 15 . 193 Day 16 . 195 Day 17 . 201 Final oughts . 207 Glossary . 209 Appendix A: Historical Notes . 245 Appendix B: Pronunciation Guide . 257 About the Author . 259 Index . 261 Extra Blank Pages . 269 Extra Drawing Circles . 281 What’s Hot on the Moon Tonight? vii Foreword ndrew Planck first came to my attention when he submitted to Lunar Photo A of the Day an image of the lunar crater Pitatus and a photo of a pie he had made. Both the 60-mile diameter crater and the 10” wide pie are ringed by fractures that probably formed the same way. Gases associated with the lavas that filled the crater lied its floor, which cooled and then collapsed with the fractures marking the breaking point. e pie crust did the same, with the gases coming from cherries rather than lavas. Although the pie is long gone, you will always think of it when observing Pitatus. is comparison is characteristic of Andrew’s practical approach to observing and understanding the Moon. His new observing guide, What’s Hot on the Moon Tonight? , points out interesting targets to observe, night by night during the lunar month.