The Blue Planet Report from Stellafane Perspective on Apollo How to Gain and Retain New Members
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Mathématiques Et Espace
Atelier disciplinaire AD 5 Mathématiques et Espace Anne-Cécile DHERS, Education Nationale (mathématiques) Peggy THILLET, Education Nationale (mathématiques) Yann BARSAMIAN, Education Nationale (mathématiques) Olivier BONNETON, Sciences - U (mathématiques) Cahier d'activités Activité 1 : L'HORIZON TERRESTRE ET SPATIAL Activité 2 : DENOMBREMENT D'ETOILES DANS LE CIEL ET L'UNIVERS Activité 3 : D'HIPPARCOS A BENFORD Activité 4 : OBSERVATION STATISTIQUE DES CRATERES LUNAIRES Activité 5 : DIAMETRE DES CRATERES D'IMPACT Activité 6 : LOI DE TITIUS-BODE Activité 7 : MODELISER UNE CONSTELLATION EN 3D Crédits photo : NASA / CNES L'HORIZON TERRESTRE ET SPATIAL (3 ème / 2 nde ) __________________________________________________ OBJECTIF : Détermination de la ligne d'horizon à une altitude donnée. COMPETENCES : ● Utilisation du théorème de Pythagore ● Utilisation de Google Earth pour évaluer des distances à vol d'oiseau ● Recherche personnelle de données REALISATION : Il s'agit ici de mettre en application le théorème de Pythagore mais avec une vision terrestre dans un premier temps suite à un questionnement de l'élève puis dans un second temps de réutiliser la même démarche dans le cadre spatial de la visibilité d'un satellite. Fiche élève ____________________________________________________________________________ 1. Victor Hugo a écrit dans Les Châtiments : "Les horizons aux horizons succèdent […] : on avance toujours, on n’arrive jamais ". Face à la mer, vous voyez l'horizon à perte de vue. Mais "est-ce loin, l'horizon ?". D'après toi, jusqu'à quelle distance peux-tu voir si le temps est clair ? Réponse 1 : " Sans instrument, je peux voir jusqu'à .................. km " Réponse 2 : " Avec une paire de jumelles, je peux voir jusqu'à ............... km " 2. Nous allons maintenant calculer à l'aide du théorème de Pythagore la ligne d'horizon pour une hauteur H donnée. -
BRAS Newsletter August 2013
www.brastro.org August 2013 Next meeting Aug 12th 7:00PM at the HRPO Dark Site Observing Dates: Primary on Aug. 3rd, Secondary on Aug. 10th Photo credit: Saturn taken on 20” OGS + Orion Starshoot - Ben Toman 1 What's in this issue: PRESIDENT'S MESSAGE....................................................................................................................3 NOTES FROM THE VICE PRESIDENT ............................................................................................4 MESSAGE FROM THE HRPO …....................................................................................................5 MONTHLY OBSERVING NOTES ....................................................................................................6 OUTREACH CHAIRPERSON’S NOTES .........................................................................................13 MEMBERSHIP APPLICATION .......................................................................................................14 2 PRESIDENT'S MESSAGE Hi Everyone, I hope you’ve been having a great Summer so far and had luck beating the heat as much as possible. The weather sure hasn’t been cooperative for observing, though! First I have a pretty cool announcement. Thanks to the efforts of club member Walt Cooney, there are 5 newly named asteroids in the sky. (53256) Sinitiere - Named for former BRAS Treasurer Bob Sinitiere (74439) Brenden - Named for founding member Craig Brenden (85878) Guzik - Named for LSU professor T. Greg Guzik (101722) Pursell - Named for founding member Wally Pursell -
Star Gazers Fly Me to the Moon Living the Dream Mission: Mars
1 Star Gazers 2 Fly Me to the Moon Dreams Dreams So now that you have your telescope and you can see what’s up in the sky, When you look up at the stars and imagine what it’s like up there, you're doing what wouldn’t you like to travel there? many, many people all over the world have done throughout history. Tools U Tools S A In 1609 Galileo was one of those curious In 1969 scientists and engineers at NASA succeeded in getting scientists -- like you. He used a telescope to get a a person to the moon, but they had to build a very powerful closer look and improved it so that he could see rocket to get there. even better. Adventure Adventure You can build your own rocket and overcome the force of gravity. You can make things look bigger than they really are. You will need: packing tape, oblong shaped balloon, paper cup, plastic drinking straw (2" section) a friend for a lab partner, 12’ You will need: newspaper, wax paper, clear plastic cups, piece of string, clear tape, scissors, hardback book, 8 1/2" x 11" water, lenses you can find around the house. writing paper, paper clip. Tape 1. Place the newspaper on the table. Put a sheet of wax 1. Using packing tape, fasten one end cup paper over the newspaper. Carefully put a drop of water of the string to the top of a doorframe. Drinking on the wax paper – just a drop. Straw 2. Blow up the balloon. -
Changed Astronomy P
Citizen Science: LUNAR Solargraphy: CAPTURE Abell 2065: THE CHALLENGE ECLIPSE RESULTS p. 28 THE SUN IN A CAN p. 38 OF THE UNCHARTED p. 60 THE ESSENTIAL GUIDE TO ASTRONOMY JUNE 2015 7 Ways HUBBLE Changed Astronomy p. 20 The Lunar Science of Jules Verne p. 32 Splitting the Stars of the Serpent’s Head p. 56 US $5.99 CAN $6.99 06 Saturn in Your Scope p. 50 Celestron’s Newest Astrograph p. 66 FnL1 03 0084 01 CUYrVyBNZWRpYQ9HcmVnb3J5IEtydWVn 02 ZXIAVPbEIwQxMC40AjgwATEFVVBDLUEM MDc0ODA4MDIyMDc2kQ== 0 74808 02207 6 Display until June 1, 2015 Visit SkyandTelescope.com Download Our Free SkyWeek App The Reality of Make-Believe ScienceThe of Jules Ver ne’s Dean Fiction Regas Nineteenth-century science and technology shaped two classic tales of imaginary spacefl ight. Under a Floridian sky, three astronauts boarded their fi ction stories provide an illuminating window into 19th- metallic spacecraft. As throngs of well-wishers nervously century scientifi c knowledge. looked on, at the awaited moment the crew blasted The year is 1865, and Verne introduces the Gun up, up into the warm, clear air — soaring toward the Club, a fi ctional organization in Baltimore. The club’s Moon. Flying where no human had gone before, they members (who possess, according to one account, “not approached the cratered lunar surface, orbited around quite one arm between four persons and exactly two legs the silvery orb, and beheld the farside of the Moon. between six”) are artillery specialists who lament the Then the spacecraft returned to Earth and plunged into end of the Civil War. -
Martian Crater Morphology
ANALYSIS OF THE DEPTH-DIAMETER RELATIONSHIP OF MARTIAN CRATERS A Capstone Experience Thesis Presented by Jared Howenstine Completion Date: May 2006 Approved By: Professor M. Darby Dyar, Astronomy Professor Christopher Condit, Geology Professor Judith Young, Astronomy Abstract Title: Analysis of the Depth-Diameter Relationship of Martian Craters Author: Jared Howenstine, Astronomy Approved By: Judith Young, Astronomy Approved By: M. Darby Dyar, Astronomy Approved By: Christopher Condit, Geology CE Type: Departmental Honors Project Using a gridded version of maritan topography with the computer program Gridview, this project studied the depth-diameter relationship of martian impact craters. The work encompasses 361 profiles of impacts with diameters larger than 15 kilometers and is a continuation of work that was started at the Lunar and Planetary Institute in Houston, Texas under the guidance of Dr. Walter S. Keifer. Using the most ‘pristine,’ or deepest craters in the data a depth-diameter relationship was determined: d = 0.610D 0.327 , where d is the depth of the crater and D is the diameter of the crater, both in kilometers. This relationship can then be used to estimate the theoretical depth of any impact radius, and therefore can be used to estimate the pristine shape of the crater. With a depth-diameter ratio for a particular crater, the measured depth can then be compared to this theoretical value and an estimate of the amount of material within the crater, or fill, can then be calculated. The data includes 140 named impact craters, 3 basins, and 218 other impacts. The named data encompasses all named impact structures of greater than 100 kilometers in diameter. -
August 13 2016 7:00Pm at the Herrett Center for Arts & Science College of Southern Idaho
Snake River Skies The Newsletter of the Magic Valley Astronomical Society www.mvastro.org Membership Meeting President’s Message Saturday, August 13th 2016 7:00pm at the Herrett Center for Arts & Science College of Southern Idaho. Public Star Party Follows at the Colleagues, Centennial Observatory Club Officers It's that time of year: The City of Rocks Star Party. Set for Friday, Aug. 5th, and Saturday, Aug. 6th, the event is the gem of the MVAS year. As we've done every Robert Mayer, President year, we will hold solar viewing at the Smoky Mountain Campground, followed by a [email protected] potluck there at the campground. Again, MVAS will provide the main course and 208-312-1203 beverages. Paul McClain, Vice President After the potluck, the party moves over to the corral by the bunkhouse over at [email protected] Castle Rocks, with deep sky viewing beginning sometime after 9 p.m. This is a chance to dig into some of the darkest skies in the west. Gary Leavitt, Secretary [email protected] Some members have already reserved campsites, but for those who are thinking of 208-731-7476 dropping by at the last minute, we have room for you at the bunkhouse, and would love to have to come by. Jim Tubbs, Treasurer / ALCOR [email protected] The following Saturday will be the regular MVAS meeting. Please check E-mail or 208-404-2999 Facebook for updates on our guest speaker that day. David Olsen, Newsletter Editor Until then, clear views, [email protected] Robert Mayer Rick Widmer, Webmaster [email protected] Magic Valley Astronomical Society is a member of the Astronomical League M-51 imaged by Rick Widmer & Ken Thomason Herrett Telescope Shotwell Camera https://herrett.csi.edu/astronomy/observatory/City_of_Rocks_Star_Party_2016.asp Calendars for August Sun Mon Tue Wed Thu Fri Sat 1 2 3 4 5 6 New Moon City Rocks City Rocks Lunation 1158 Castle Rocks Castle Rocks Star Party Star Party Almo, ID Almo, ID 7 8 9 10 11 12 13 MVAS General Mtg. -
Observer Page 2 of 14
AAAssstttrrrooonnnooomyyy CCCllluuubbb ooofff TTTuuulllsssaaa OOOOOObbbbbbsssssseeeeeerrrrrrvvvvvveeeeeerrrrrr October 2009 Messier 15 Jean-Dominique Maraldi discovered M15 on September 7, 1746. He described it as 'A nebulous star, fairly bright and composed of many stars'. Charles Messier, who cataloged it on June 3, 1764, and Johann Bode couldn't make this out and described it as 'nebula without stars,' so that it remained to William Herschel in 1783 to resolve this fine star cluster. M15 was the first globular cluster in which a planetary nebula, Pease 1 or K 648 ("K" for "Kuster"), could be identified (Pease 1928, on photographic plates taken at Mt. Wilson in 1927). M15 can be found extremely easily: First find the 2nd magnitude star Epsilon Pegasi, and Theta Pegasi SE of it. Follow the line from Theta over Epsilon and find M15 3 1/2 deg W and 2 1/4 deg N of Epsilon. A 6th magnitude star is about 20' away to the East; another one of magnitude 7.5 is about 5' to the NNE. With its apparent visual brightness of magnitude 6.2, M15 is about at the limit of visibility for the naked eye under very good conditions. The slightest optical aid, opera glass or small binoculars, reveals it as a round nebulous object. It appears as a round mottled nebula in 4-inch telescopes, with at best the very brightest stars visible, but otherwise unresolved in a fine star field. Be sure to catch & log M15 this month! Inside This Issue: Important ACT Upcoming Dates: October Calendar - - - - - - p2 Misc. News - - - - - - - - - - p6 ACT Monthly Meeting @ Bass Pro - Fri, Oct. -
SEPTEMBER 2014 OT H E D Ebn V E R S E R V ESEPTEMBERR 2014
THE DENVER OBSERVER SEPTEMBER 2014 OT h e D eBn v e r S E R V ESEPTEMBERR 2014 FROM THE INSIDE LOOKING OUT Calendar Taken on July 25th in San Luis State Park near the Great Sand Dunes in Colorado, Jeff made this image of the Milky Way during an overnight camping stop on the way to Santa Fe, NM. It was taken with a Canon 2............................. First quarter moon 60D camera, an EFS 15-85 lens, using an iOptron SkyTracker. It is a single frame, with no stacking or dark/ 8.......................................... Full moon bias frames, at ISO 1600 for two minutes. Visible in this south-facing photograph is Sagittarius, and the 14............ Aldebaran 1.4˚ south of moon Dark Horse Nebula inside of the Milky Way. He processed the image in Adobe Lightroom. Image © Jeff Tropeano 15............................ Last quarter moon 22........................... Autumnal Equinox 24........................................ New moon Inside the Observer SEPTEMBER SKIES by Dennis Cochran ygnus the Swan dives onto center stage this other famous deep-sky object is the Veil Nebula, President’s Message....................... 2 C month, almost overhead. Leading the descent also known as the Cygnus Loop, a supernova rem- is the nose of the swan, the star known as nant so large that its separate arcs were known Society Directory.......................... 2 Albireo, a beautiful multi-colored double. One and named before it was found to be one wide Schedule of Events......................... 2 wonders if Albireo has any planets from which to wisp that came out of a single star. The Veil is see the pair up-close. -
Measure the Sky
Measure the Sky Program Type: Demonstration or Audience Type: Grade 4–8 Classroom Program Description: Students assemble a quadrant, a tool for measuring the positions of objects in the sky. Topics: Sky, observation, astronomy. Process Skills Focus: Critical thinking, observing, measuring, predicting. LEARNING OBJECTIVES For Next Generation Science Standards alignment, see end of outline. • A quadrant is a tool scientists use to measure how high an object is above the horizon. • Islamic astronomers during the 11th–13th centuries developed and used quadrants to track the movements of celestial objects, work that led to many scientific discoveries. TIME REQUIRED Advance Prep Set Up Activity Clean Up 15 minutes 5 minutes 25 minutes 10 minutes SITE REQUIREMENTS • Standard size classroom • Desks or tables with chairs • The presence of at least one adult Measure the Sky 1 Lenses on the Sky OMSI 2017 PROGRAM FORMAT Segment Format Time Introduction Large group discussion 5 min Make a Quadrant Instructor-led activity 10 min Quadrant Practice Partner activity 5 min Wrap-Up Large group discussion 5 min SUPPLIES Permanent Supplies Amount Pencils 1/student Scissors 1/student Tape One roll/4 students Major Consumables Amount Notes Quadrant template 1/student At the end of this document String, 12” 1/student Drinking straw 1/student Metal washer, roughly 1” in diameter 1/student ADVANCE PREPARATION • Print the quadrant template on heavy cardstock and cut the page in half to produce one quadrant per student. • Assemble one quadrant to show the students as an example. • Depending on the age group, students might have trouble poking a pencil through the quadrant paper. -
The Midnight Sky: Familiar Notes on the Stars and Planets, Edward Durkin, July 15, 1869 a Good Way to Start – Find North
The expression "dog days" refers to the period from July 3 through Aug. 11 when our brightest night star, SIRIUS (aka the dog star), rises in conjunction* with the sun. Conjunction, in astronomy, is defined as the apparent meeting or passing of two celestial bodies. TAAS Fabulous Fifty A program for those new to astronomy Friday Evening, July 20, 2018, 8:00 pm All TAAS and other new and not so new astronomers are welcome. What is the TAAS Fabulous 50 Program? It is a set of 4 meetings spread across a calendar year in which a beginner to astronomy learns to locate 50 of the most prominent night sky objects visible to the naked eye. These include stars, constellations, asterisms, and Messier objects. Methodology 1. Meeting dates for each season in year 2018 Winter Jan 19 Spring Apr 20 Summer Jul 20 Fall Oct 19 2. Locate the brightest and easiest to observe stars and associated constellations 3. Add new prominent constellations for each season Tonight’s Schedule 8:00 pm – We meet inside for a slide presentation overview of the Summer sky. 8:40 pm – View night sky outside The Midnight Sky: Familiar Notes on the Stars and Planets, Edward Durkin, July 15, 1869 A Good Way to Start – Find North Polaris North Star Polaris is about the 50th brightest star. It appears isolated making it easy to identify. Circumpolar Stars Polaris Horizon Line Albuquerque -- 35° N Circumpolar Stars Capella the Goat Star AS THE WORLD TURNS The Circle of Perpetual Apparition for Albuquerque Deneb 1 URSA MINOR 2 3 2 URSA MAJOR & Vega BIG DIPPER 1 3 Draco 4 Camelopardalis 6 4 Deneb 5 CASSIOPEIA 5 6 Cepheus Capella the Goat Star 2 3 1 Draco Ursa Minor Ursa Major 6 Camelopardalis 4 Cassiopeia 5 Cepheus Clock and Calendar A single map of the stars can show the places of the stars at different hours and months of the year in consequence of the earth’s two primary movements: Daily Clock The rotation of the earth on it's own axis amounts to 360 degrees in 24 hours, or 15 degrees per hour (360/24). -
2002 Convention Bulletin
STELLAFANE The 67th Convention of Amateur Telescope Makers on Breezy Hill in Springfield, Vermont. Friday, August 9th and Saturday, August 10th, 2002 "For it is true that astronomy, from a popular standpoint, is handicapped by the inability of the average workman to own an expensive astronomical telescope. It is also true that if an amateur starts out to build a telescope just for fun he will find, before his labors are over, that he has become seriously interested in the wonderful mechanism of our universe. And finally there is understandably the stimulus of being able to unlock the mysteries of the heavens by a tool fashioned by one's own hand." Russell W. Porter, March 1923 -- Founder of Stellafane The Stellafane Convention is a gathering of amateur telescope makers. The Convention was started in 1926 to give amateur telescope makers an opportunity to gather, to show off their creations and teach each other telescope making and mirror grinding techniques. If you have made your own telescope, we strongly encourage you to display it in the telescope fields near the Pink Clubhouse. If you wish, you can enter it in the mechanical and/or optical competition. There are also mirror grinding and telescope making demonstrations, technical lectures on telescope making and the presentation of awards for telescope design and craftsmanship. Vendor displays and the retail sale of commercial products are not permitted. For additional information please check out the home page www.stellafane.com. Enjoy the convention! PLEASE NOTE AN IMPORTANT SCHEDULE CHANGE DURING CONVENTION: The optical judging has been re- scheduled for Friday night! There will be no optical judging Saturday night unless clouds interfere with the optical competition on Friday. -
Lunar Orbiter Ii
NASA CONTRACTOR NASA CR-883 REPORT LUNAR ORBITER II Photographic Mission Summary Prepared by THE BOEING COMPANY Seattle, Wash. for Langley Research Center NATIONAl AERONAUTICS AND SPACE ADMINISTRATION • WASHINGTON, D. C. • OCTOBER 1967 THE CRATER COPERNICUS - Photo taken by NASA-Boeing Lunar Orbiter II, November 23, 1966,00:05:42 GMT, from a distance of 150 miles. NASA CR-883 LUNAR ORBITER II Photographic Mission Summary Distribution of this report is provided in the interest of information exchange. Responsibility for the contents resides in the author or organization that prepared it. Issued by Originator as Document No. D2-100752-1 Prepared under Contract No. NAS 1-3800 by THE BOEING COMPANY Seattle, Wash. for Langley Research Center NATIONAL AERONAUTICS AND SPACE ADMINISTRATION For sole by the Clearinghouse for Federal Scientific and Technical Information Springfield, Virginia 22151 - CFSTI price $3.00 CONTENTS Page No. 1.0 LUNAR ORBITER II MISSION SUMMARY 1 1.1 INTRODUCTION 4 1.1.1 Program Description 4 1.1.2 Program Management 5 1.1.3 Program Objectives 6 1.1.3.1 Mission II Objectives 6 1.1.4 Mission Design 8 1.1.5 Flight Vehicle Description 12 1.2 LAUNCH PREPARATION AND OPERATIONS 19 1.2.1 Launch Vehicle Preparation 19 1.2.2 Spacecraft Preparation 21 1.2.3 Launch Countdown 21 1.2.4 Launch Phase 22 1.2.4.1 Flight Vehicle Performance 22 1.2.5 Data Acquisition 24 1.3 MISSION OPERATIONS 29 1.3.1 Mission Profile 29 1.3.2 Spacecraft Performance 31 1.3.2.1 Photo Subsystem Performance 32 1.3.2.2 Power Subsystem Performance 34 1.3.2.3 Communications