DOCSLIB.ORG

3 Welcome to Moonbase

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
3 Welcome to Moonbase : Fort Worth Astronomical Society November 2010 Established 1949 Astronomical League Member Club Calendar – 2 Skyportunities – 3 Welcome to Moonbase – 5 Avoid Astronomy Disasters! – 6 Pisces is a fine kettle of fish – 7 Stargazers’ Diary – 8 1 November 2010 Sunday Monday Tuesday Wednesday Thursday Friday Saturday 1 2 3 4 5 6 Moon at Perigee Top ten binocular deep-sky objects for November: M31, M33, M103, NGC 225, NGC 288, NGC 253, S. Taurids Stars in the Park NGC 457, NGC 654, NGC 663, NGC 752 meteors Top ten deep-sky objects for November: River Legacy Park peak M31, M32, M33, M76, M103, M110, NGC 40, in Arlington NGC 253, NGC 457, NGC 752 New Moon 3RF Star Party 11:52 pm 7 8 9 10 11 12 13 Algol at Minima First Qtr Moon 8:32 pm - NW 10:39 am N. Taurids meteors peak 3RF Lunar Party Veteran’s Day 14 15 16 17 18 19 20 Moon at Apogee FWAS Leonid Meeting meteors peak 21 22 23 24 25 26 27 Full Moon 11:27 am France becomes rd 3 nation to launch a satellite 1st photo of a Thanksgiving 45 years ago a-Monocerotids meteor shower Where did the meteors peak 125 years ago cornucopia come from? Black Friday (it’s in last month’s PF) 28 29 30 Dec. 4 Last Qtr Moon North West ISD 2:36 pm Challenge deep-sky object for November: > VERY LARGE < : IC 59 (Cassiopeia) Star Party Challenge binary star for November: 36 Andromedae Notable carbon star for November: Z Piscium Watch the e-group 2 The Sky This Month – Thomsen Foundation -- 9 pm local time, November 15th (from Heavens-Above.com) The Sky This Month Star Charts: Sky & Telescope Sky Maps http://tinyrul.com/5np8n http://www.skymaps.com Heavens Above International Space Station Transits http://www.heavens-above.com http://tinyrul.com/y8zk5c Observing and Outreach Opportunities Weather permitting (FWAS contacts in parentheses) November 6 (DSO) & November 13 (Lunar) - Three Rivers Foundation (3RF) Star Party - 3RF invites you out to Comanche Springs near Crowell, Texas for a night under the stars. The dark skies of Big Ranch Country provide a spectacular view of the universe. The party starts with solar observing followed by a break. Evening activities begin with a short educational introduction to astronomy. The observatories and Star Field are then opened to the public to enjoy the use of many different kinds of astronomy instruments. For more information the day of a scheduled star party, please call 940-655-3384. (Russ Boatright and Doug Brown) (Panhandle Plains, where Oklahoma tucks into the Texas Panhandle) November 13 — Buescher State Park — Spend the evening under the stars at Buescher State Park in the Hill Country. We’ll have guides discussing constellations and the lore behind them, and maybe even a telescope trained on one of the many wonders of the night sky. Or, just bring a blanket and see if you can spot the Leonids Meteor Shower. At the lake. 512-237-2241 3 Out & About It was great to see so many members and their family and friends at the club picnic. A BIG THANK YOU to Shawn for putting it all together. It was also a great night to be out with some telescopes, clear/dark skies and cool temperatures (a little too much wind though). We must have had about 15 or more scopes set up, it was great. – Steve Tuttle I also want to say thank you to all of the members who were able to attend the club picnic. At the last headcount, we had about 54 members and/or their family members there, so it was a great turn out. As Steve said, the skies were great (wind picked up more at the end of the evening), and we had so many telescopes set up I didn't get a chance to look through them all. I hope everyone enjoyed themselves and the food. And for those who this was their first time out to the dark site, I hope you'll take further advantage of this great membership asset as often as you can. Those members who still haven't made it out there are missing out on a great dark sky. :) – Shaun Kirchdorfer Dear Fort Worth Astronomical Society, My family of four (2 sons ages 9 and 11) enjoyed very much the Stars over Euless event this past Friday. The telescopes made the event exciting! Thanks for taking the time to come to Euless, set up your fine telescopes, and share your expertise. A very special thanks goes to Mr. Ben Hutchins, one of your members. My husband Tim chatted with Mr. Hutchins at length. We learned so much about Jupiter and the moon thanks to his interesting presentation. He is a wonderful astronomer and went out of his way to get my sons eager to learn about space!!! Have a wonderful day! Beth C Tom Koonce writes: I’d like to draw your attention to the Astronomy Outreach Foundation which is trying to combat the “Graying” of our hobby by attracting Generations X and Y into the fun of amateur astronomy. This is a non-profit foundation started by a combination of amateur astronomical industry leaders “to stimulate greater public interest in astronomy and to assist everyone in becoming more engaged in activities that allow them to learn more about the universe.” For more information, please visit http://www.astronomyoutreachfoundation.org 4 Cloudy Night Library Media reviews by Matt J. McCullar, FWAS Welcome to Moonbase by Ben Bova Published in 1987 by Ballantine Books 255 pages USBN 0-345-32859-0 “No one is allowed to walk on the surface alone.” While technically this is a science-fiction book, I feel Welcome to Moonbase contains enough science fact to make it qualify for inclusion in Cloudy Night Library. Ben Bova, a well-known science-fiction writer, wrote this book with a very clever concept: It’s sort of a FAQ (Frequently Asked Questions) file for brand-new employees of a working lunar base in the future. There are no main characters and it does not tell a story, per se. While it does cover a great many technical matters, it is written in a simple, entertaining style that really makes the reader think about all the work that will go into building and populating a future lunar colony. It is clear that Bova put a great deal of thought and research into this book. The goal of a lunar base is to actually live there, do productive work, and sustain itself. Moonbase employees must know what is expected of them, and what everything does. Residents may stay there for months at a time, or even longer. People tend to get very protective and proud about their home towns, and develop their own slang terms for certain things. A newcomer to Moonbase may be instantly identified simply by the way he or she talks, compared to the veterans. Make no mistake: astronomy remains at the heart of Welcome to Moonbase. Bova discusses libration points – stable points in lunar orbit. On this future moon, there are no lunar-orbiting communications satellites because they would interfere with the ultra-sensitive radio telescopes on the far side. “All communications with far-side bases are carried by fiber-optic cables along the ground.” Bova goes on about communications in lunar orbit: “It is interesting to note that the Moon cannot have communications satellites in synchronous orbit, as the Earth does, because the synchronous orbit for the Moon is at the distance of the Earth! The orbits of lunar- synchronous commsats would be so perturbed by Earth’s gravity that they would inevitably crash into the Earth.” How does one navigate on the lunar surface? “…Nor can you navigate by the stars, unless you know that the lunar north pole does not point to Polaris, the pole star of Earth. Instead, it points in the direction of Draco, a comparatively dim constellation of stars that sprawls between the Big and Little Dippers (Ursa Major and Minor). Because the Moon wobbles on its axis much more than the Earth does, its north pole wavers considerably and does not point toward a specific star for more than a dozen years or so at a time.” “While the soil surface is dark, you notice that the footprints you leave behind you are much brighter. This lighter color is the true tone of the soil; the surface has been darkened by eons of hard radiation from the Sun… The First Footprints Club has become an international organization, loosely organized in a manner similar to that of the Neptune’s Courts that once initiated shipboard passengers who crossed the equator for the first time.” Bova must have enjoyed theorizing on what will eventually become of the individual landing sites of the Apollo program. “By far the most popular tourist attraction is Tranquility Base, where the lower half of the Apollo 11 landing craft still stands surrounded by the flag, equipment, and footprints Armstrong and Aldrin left there. The regolith [lunar soil] has been covered with a clear plastic so that the astronauts’ historic footprints cannot be disturbed.” Also, an employee of Moonbase found Alan Shepard’s golf ball from Apollo 14! It is curious to note that since this book was written, many things on Earth have changed and have made certain ideas herein already obsolete. You will find an occasional anachronism as a result. But it shouldn’t deter you from enjoying the book as a whole. Even a lunar colony is a group of people – people who are born, age, learn, die, worship, live, have fun, and work.
Load more

Recommended publications
  • ANNUAL REPORT Academic Year 2019-2020
    ANNUAL REPORT Academic Year 2019-2020 International Space University The International Space University, founded in 1987 in Massachusetts, US, and now headquartered in Stras- bourg, France, is the world’s premier international space education institution. It is supported by major space agencies and aerospace organizations from around the world. The graduate level programs offered by ISU are dedicated to promoting international, interdisciplinary and intercultural cooperation in space activities. ISU offers the Master of Science in Space Studies program at its Central Campus in Strasbourg. Since the summer of 1988, ISU conducts the two-month Space Studies Program at different host institutions in locations spanning the globe; more recently the Southern Hemisphere Space Studies Program; and the online Interactive Space Program. ISU programs are delivered by over 100 ISU faculty members in concert with invited industry and agency experts from institutions around the world. Since its founding, more than 5000 students from 110 countries graduated from ISU. Contact Info: 1 rue Jean-Dominique Cassini Parc d’Innovation 67400 Illkirch-Graffenstaden, France [email protected] Phone: +33-3-88-65-54-30 Fax: +33-3-88-65-54-47 Table of Contents INTRODUCTION Page 1 1. Summary and Key Figures Page 3 2. Master of Space Studies - MSS20 Page 4 3. Interactive Space Program - ISP20 in lieu of SSP20 Page 9 4. Southern Hemisphere Space Studies Program - SHSSP20 Page 12 5. Commercial Space Course - CSP20 Page 15 6. Short Courses Page 17 7. Research and Publications Page 19 8. Space start-up Incubator Page 23 9. Alumni Affairs Page 24 10. Faculty and Executive Appointments Page 27 11.
    [Show full text]
  • N98-L7433 World Space Foundation P.O
    175 A LUNAR POLAR EXPEDITION Richard Dowling, Robert L. Staehle, and Tomas Svitek N98-l7433 World Space Foundation P.O. Box Y South Pasadena CA 91031 Advanced exploration and development in harsh environments require mastery of basic human suroival skills. F.xpeditions into the lethal climates of Earth's polar regions offer useful lessons for tommrow's lunar pioneers. In Arctic and Antarctic exploration, "wintering over" was a cruciaJ milestone. 7be ability to establish a supply base and suroive months of polar cold and da1*ness made extensive travel and exploration possible. Because of the possibility of near-constant solar illumination, the lunar polar regions, unlike Earth's, may offer the most hospitable site for habitation. 7be World space Foundation ts examining a scenario for establishing a .five.person expeditionary team on the lunar north pole for one year. 1bi.s paper ts a status report on a point design addressing site selection, transportation, power, and life support requirements. POLAR EXPWRATION AND North Pole on 6 April, 1909, and Roald Amundson's magnificently LUNAR OBJECl1VFS planned expedition reaching the South Pole on 14 December, 1911. Today there are permanent residents in both the Arctic and In March 1899, almost one hundred years ago, the explorer Antarctic pursuing commercial and scientific activities. Indeed, the Carsten E. Borchgrevnik established the first winter camp on the International Antarctic Treaty may prove a useful example for "white continent," Antarctica. Unlike the north polar regions, those trying to determine who "owns" the Moon. Antarctica had never been inhabited by man. Though marine birds Unlike Earth's polar regions, the lunar poles may be the most and animals visit the coastal regions, only primitive mo.....s and hospitable locations for early long-term human habitats, so we do lichen can survive the polar deserts of ice and snow.
    [Show full text]
  • For Creative Minds
    For Creative Minds The For Creative Minds educational section may be photocopied or printed from our website by the owner of this book for educational, non-commercial uses. Cross-curricular teaching activities, interactive quizzes, and more are available online. Go to www.ArbordalePublishing.com and click on the book’s cover to explore all the links. Moon Observations The months as we know them (January, February, etc.) are solar, based on how many days it takes the earth to revolve around the sun, roughly divided by twelve. A moon-th, or lunar (moon) month, is based on how long it takes the moon to orbit around the earth. The phases (shapes) of the moon change according to its cycle as it rotates around the earth, and the position of the moon with respect to the rising or setting sun. This cycle lasts about 29 ½ days. A (moon) month starts on “day one” with a new moon. The sun and the moon are in the same position and rise and set together. We can’t see the new moon. New Moon The moon rises and sets roughly 50 minutes later each day. The moon appears to “grow” or it waxes each day from a new moon to a full moon. The waxing moon’s bright side points at the setting Waxing sun and can be seen in the late afternoon on a clear day. Crescent A crescent moon is between new and half (less than half full), and may be waxing or waning. First Quarter The half-moon waxing or first quarter moon occurs about a week after the new moon.
    [Show full text]
  • Moons Phases and Tides
    Moon’s Phases and Tides Moon Phases Half of the Moon is always lit up by the sun. As the Moon orbits the Earth, we see different parts of the lighted area. From Earth, the lit portion we see of the moon waxes (grows) and wanes (shrinks). The revolution of the Moon around the Earth makes the Moon look as if it is changing shape in the sky The Moon passes through four major shapes during a cycle that repeats itself every 29.5 days. The phases always follow one another in the same order: New moon Waxing Crescent First quarter Waxing Gibbous Full moon Waning Gibbous Third (last) Quarter Waning Crescent • IF LIT FROM THE RIGHT, IT IS WAXING OR GROWING • IF DARKENING FROM THE RIGHT, IT IS WANING (SHRINKING) Tides • The Moon's gravitational pull on the Earth cause the seas and oceans to rise and fall in an endless cycle of low and high tides. • Much of the Earth's shoreline life depends on the tides. – Crabs, starfish, mussels, barnacles, etc. – Tides caused by the Moon • The Earth's tides are caused by the gravitational pull of the Moon. • The Earth bulges slightly both toward and away from the Moon. -As the Earth rotates daily, the bulges move across the Earth. • The moon pulls strongly on the water on the side of Earth closest to the moon, causing the water to bulge. • It also pulls less strongly on Earth and on the water on the far side of Earth, which results in tides. What causes tides? • Tides are the rise and fall of ocean water.
    [Show full text]
  • Captain Vancouver, Longitude Errors, 1792
    Context: Captain Vancouver, longitude errors, 1792 Citation: Doe N.A., Captain Vancouver’s longitudes, 1792, Journal of Navigation, 48(3), pp.374-5, September 1995. Copyright restrictions: Please refer to Journal of Navigation for reproduction permission. Errors and omissions: None. Later references: None. Date posted: September 28, 2008. Author: Nick Doe, 1787 El Verano Drive, Gabriola, BC, Canada V0R 1X6 Phone: 250-247-7858, FAX: 250-247-7859 E-mail: [email protected] Captain Vancouver's Longitudes – 1792 Nicholas A. Doe (White Rock, B.C., Canada) 1. Introduction. Captain George Vancouver's survey of the North Pacific coast of America has been characterized as being among the most distinguished work of its kind ever done. For three summers, he and his men worked from dawn to dusk, exploring the many inlets of the coastal mountains, any one of which, according to the theoretical geographers of the time, might have provided a long-sought-for passage to the Atlantic Ocean. Vancouver returned to England in poor health,1 but with the help of his brother John, he managed to complete his charts and most of the book describing his voyage before he died in 1798.2 He was not popular with the British Establishment, and after his death, all of his notes and personal papers were lost, as were the logs and journals of several of his officers. Vancouver's voyage came at an interesting time of transition in the technology for determining longitude at sea.3 Even though he had died sixteen years earlier, John Harrison's long struggle to convince the Board of Longitude that marine chronometers were the answer was not quite over.
    [Show full text]
  • Project Selene: AIAA Lunar Base Camp
    Project Selene: AIAA Lunar Base Camp AIAA Space Mission System 2019-2020 Virginia Tech Aerospace Engineering Faculty Advisor : Dr. Kevin Shinpaugh Team Members : Olivia Arthur, Bobby Aselford, Michel Becker, Patrick Crandall, Heidi Engebreth, Maedini Jayaprakash, Logan Lark, Nico Ortiz, Matthew Pieczynski, Brendan Ventura Member AIAA Number Member AIAA Number And Signature And Signature Faculty Advisor 25807 Dr. Kevin Shinpaugh Brendan Ventura 1109196 Matthew Pieczynski 936900 Team Lead/Operations Logan Lark 902106 Heidi Engebreth 1109232 Structures & Environment Patrick Crandall 1109193 Olivia Arthur 999589 Power & Thermal Maedini Jayaprakash 1085663 Robert Aselford 1109195 CCDH/Operations Michel Becker 1109194 Nico Ortiz 1109533 Attitude, Trajectory, Orbits and Launch Vehicles Contents 1 Symbols and Acronyms 8 2 Executive Summary 9 3 Preface and Introduction 13 3.1 Project Management . 13 3.2 Problem Definition . 14 3.2.1 Background and Motivation . 14 3.2.2 RFP and Description . 14 3.2.3 Project Scope . 15 3.2.4 Disciplines . 15 3.2.5 Societal Sectors . 15 3.2.6 Assumptions . 16 3.2.7 Relevant Capital and Resources . 16 4 Value System Design 17 4.1 Introduction . 17 4.2 Analytical Hierarchical Process . 17 4.2.1 Longevity . 18 4.2.2 Expandability . 19 4.2.3 Scientific Return . 19 4.2.4 Risk . 20 4.2.5 Cost . 21 5 Initial Concept of Operations 21 5.1 Orbital Analysis . 22 5.2 Launch Vehicles . 22 6 Habitat Location 25 6.1 Introduction . 25 6.2 Region Selection . 25 6.3 Locations of Interest . 26 6.4 Eliminated Locations . 26 6.5 Remaining Locations . 27 6.6 Chosen Location .
    [Show full text]
  • The Mathematics of the Chinese, Indian, Islamic and Gregorian Calendars
    Heavenly Mathematics: The Mathematics of the Chinese, Indian, Islamic and Gregorian Calendars Helmer Aslaksen Department of Mathematics National University of Singapore [email protected] www.math.nus.edu.sg/aslaksen/ www.chinesecalendar.net 1 Public Holidays There are 11 public holidays in Singapore. Three of them are secular. 1. New Year’s Day 2. Labour Day 3. National Day The remaining eight cultural, racial or reli- gious holidays consist of two Chinese, two Muslim, two Indian and two Christian. 2 Cultural, Racial or Religious Holidays 1. Chinese New Year and day after 2. Good Friday 3. Vesak Day 4. Deepavali 5. Christmas Day 6. Hari Raya Puasa 7. Hari Raya Haji Listed in order, except for the Muslim hol- idays, which can occur anytime during the year. Christmas Day falls on a fixed date, but all the others move. 3 A Quick Course in Astronomy The Earth revolves counterclockwise around the Sun in an elliptical orbit. The Earth ro- tates counterclockwise around an axis that is tilted 23.5 degrees. March equinox June December solstice solstice September equinox E E N S N S W W June equi Dec June equi Dec sol sol sol sol Beijing Singapore In the northern hemisphere, the day will be longest at the June solstice and shortest at the December solstice. At the two equinoxes day and night will be equally long. The equi- noxes and solstices are called the seasonal markers. 4 The Year The tropical year (or solar year) is the time from one March equinox to the next. The mean value is 365.2422 days.
    [Show full text]
  • CONSTELLATION TRIANGULUM, the TRIANGLE Triangulum Is a Small Constellation in the Northern Sky
    CONSTELLATION TRIANGULUM, THE TRIANGLE Triangulum is a small constellation in the northern sky. Its name is Latin for "triangle", derived from its three brightest stars, which form a long and narrow triangle. Known to the ancient Babylonians and Greeks, Triangulum was one of the 48 constellations listed by the 2nd century astronomer Ptolemy. The celestial cartographers Johann Bayer and John Flamsteed catalogued the constellation's stars, giving six of them Bayer designations. The white stars Beta and Gamma Trianguli, of apparent magnitudes 3.00 and 4.00, respectively, form the base of the triangle and the yellow-white Alpha Trianguli, of magnitude 3.41, the apex. Iota Trianguli is a notable double star system, and there are three star systems with planets located in Triangulum. The constellation contains several galaxies, the brightest and nearest of which is the Triangulum Galaxy or Messier 33—a member of the Local Group. The first quasar ever observed, 3C 48, also lies within Triangulum's boundaries. HISTORY AND MYTHOLOGY In the Babylonian star catalogues, Triangulum, together with Gamma Andromedae, formed the constellation known as MULAPIN "The Plough". It is notable as the first constellation presented on (and giving its name to) a pair of tablets containing canonical star lists that were compiled around 1000 BC, the MUL.APIN. The Plough was the first constellation of the "Way of Enlil"—that is, the northernmost quarter of the Sun's path, which corresponds to the 45 days on either side of summer solstice. Its first appearance in the pre-dawn sky (heliacal rising) in February marked the time to begin spring ploughing in Mesopotamia.
    [Show full text]
  • Exploration of the Moon
    Exploration of the Moon The physical exploration of the Moon began when Luna 2, a space probe launched by the Soviet Union, made an impact on the surface of the Moon on September 14, 1959. Prior to that the only available means of exploration had been observation from Earth. The invention of the optical telescope brought about the first leap in the quality of lunar observations. Galileo Galilei is generally credited as the first person to use a telescope for astronomical purposes; having made his own telescope in 1609, the mountains and craters on the lunar surface were among his first observations using it. NASA's Apollo program was the first, and to date only, mission to successfully land humans on the Moon, which it did six times. The first landing took place in 1969, when astronauts placed scientific instruments and returnedlunar samples to Earth. Apollo 12 Lunar Module Intrepid prepares to descend towards the surface of the Moon. NASA photo. Contents Early history Space race Recent exploration Plans Past and future lunar missions See also References External links Early history The ancient Greek philosopher Anaxagoras (d. 428 BC) reasoned that the Sun and Moon were both giant spherical rocks, and that the latter reflected the light of the former. His non-religious view of the heavens was one cause for his imprisonment and eventual exile.[1] In his little book On the Face in the Moon's Orb, Plutarch suggested that the Moon had deep recesses in which the light of the Sun did not reach and that the spots are nothing but the shadows of rivers or deep chasms.
    [Show full text]
  • Rare Astronomical Sights and Sounds
    Jonathan Powell Rare Astronomical Sights and Sounds The Patrick Moore The Patrick Moore Practical Astronomy Series More information about this series at http://www.springer.com/series/3192 Rare Astronomical Sights and Sounds Jonathan Powell Jonathan Powell Ebbw Vale, United Kingdom ISSN 1431-9756 ISSN 2197-6562 (electronic) The Patrick Moore Practical Astronomy Series ISBN 978-3-319-97700-3 ISBN 978-3-319-97701-0 (eBook) https://doi.org/10.1007/978-3-319-97701-0 Library of Congress Control Number: 2018953700 © Springer Nature Switzerland AG 2018 This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors, and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, express or implied, with respect to the material contained herein or for any errors or omissions that may have been made.
    [Show full text]
  • March 21–25, 2016
    FORTY-SEVENTH LUNAR AND PLANETARY SCIENCE CONFERENCE PROGRAM OF TECHNICAL SESSIONS MARCH 21–25, 2016 The Woodlands Waterway Marriott Hotel and Convention Center The Woodlands, Texas INSTITUTIONAL SUPPORT Universities Space Research Association Lunar and Planetary Institute National Aeronautics and Space Administration CONFERENCE CO-CHAIRS Stephen Mackwell, Lunar and Planetary Institute Eileen Stansbery, NASA Johnson Space Center PROGRAM COMMITTEE CHAIRS David Draper, NASA Johnson Space Center Walter Kiefer, Lunar and Planetary Institute PROGRAM COMMITTEE P. Doug Archer, NASA Johnson Space Center Nicolas LeCorvec, Lunar and Planetary Institute Katherine Bermingham, University of Maryland Yo Matsubara, Smithsonian Institute Janice Bishop, SETI and NASA Ames Research Center Francis McCubbin, NASA Johnson Space Center Jeremy Boyce, University of California, Los Angeles Andrew Needham, Carnegie Institution of Washington Lisa Danielson, NASA Johnson Space Center Lan-Anh Nguyen, NASA Johnson Space Center Deepak Dhingra, University of Idaho Paul Niles, NASA Johnson Space Center Stephen Elardo, Carnegie Institution of Washington Dorothy Oehler, NASA Johnson Space Center Marc Fries, NASA Johnson Space Center D. Alex Patthoff, Jet Propulsion Laboratory Cyrena Goodrich, Lunar and Planetary Institute Elizabeth Rampe, Aerodyne Industries, Jacobs JETS at John Gruener, NASA Johnson Space Center NASA Johnson Space Center Justin Hagerty, U.S. Geological Survey Carol Raymond, Jet Propulsion Laboratory Lindsay Hays, Jet Propulsion Laboratory Paul Schenk,
    [Show full text]
  • A Handbook of Double Stars, with a Catalogue of Twelve Hundred
    The original of this bool< is in the Cornell University Library. There are no known copyright restrictions in the United States on the use of the text. http://www.archive.org/details/cu31924064295326 3 1924 064 295 326 Production Note Cornell University Library pro- duced this volume to replace the irreparably deteriorated original. It was scanned using Xerox soft- ware and equipment at 600 dots per inch resolution and com- pressed prior to storage using CCITT Group 4 compression. The digital data were used to create Cornell's replacement volume on paper that meets the ANSI Stand- ard Z39. 48-1984. The production of this volume was supported in part by the Commission on Pres- ervation and Access and the Xerox Corporation. Digital file copy- right by Cornell University Library 1991. HANDBOOK DOUBLE STARS. <-v6f'. — A HANDBOOK OF DOUBLE STARS, WITH A CATALOGUE OF TWELVE HUNDRED DOUBLE STARS AND EXTENSIVE LISTS OF MEASURES. With additional Notes bringing the Measures up to 1879, FOR THE USE OF AMATEURS. EDWD. CROSSLEY, F.R.A.S.; JOSEPH GLEDHILL, F.R.A.S., AND^^iMES Mt^'^I^SON, M.A., F.R.A.S. "The subject has already proved so extensive, and still ptomises so rich a harvest to those who are inclined to be diligent in the pursuit, that I cannot help inviting every lover of astronomy to join with me in observations that must inevitably lead to new discoveries." Sir Wm. Herschel. *' Stellae fixac, quae in ccelo conspiciuntur, sunt aut soles simplices, qualis sol noster, aut systemata ex binis vel interdum pluribus solibus peculiari nexu physico inter se junccis composita.
    [Show full text]