THE CONSTELLATION HERCULES Hercules Is a Constellation Named After the Roman Mythological Hero Hercules Adapted from the Greek Hero Heracles
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Astronomie in Theorie Und Praxis 8. Auflage in Zwei Bänden Erik Wischnewski
Astronomie in Theorie und Praxis 8. Auflage in zwei Bänden Erik Wischnewski Inhaltsverzeichnis 1 Beobachtungen mit bloßem Auge 37 Motivation 37 Hilfsmittel 38 Drehbare Sternkarte Bücher und Atlanten Kataloge Planetariumssoftware Elektronischer Almanach Sternkarten 39 2 Atmosphäre der Erde 49 Aufbau 49 Atmosphärische Fenster 51 Warum der Himmel blau ist? 52 Extinktion 52 Extinktionsgleichung Photometrie Refraktion 55 Szintillationsrauschen 56 Angaben zur Beobachtung 57 Durchsicht Himmelshelligkeit Luftunruhe Beispiel einer Notiz Taupunkt 59 Solar-terrestrische Beziehungen 60 Klassifizierung der Flares Korrelation zur Fleckenrelativzahl Luftleuchten 62 Polarlichter 63 Nachtleuchtende Wolken 64 Haloerscheinungen 67 Formen Häufigkeit Beobachtung Photographie Grüner Strahl 69 Zodiakallicht 71 Dämmerung 72 Definition Purpurlicht Gegendämmerung Venusgürtel Erdschattenbogen 3 Optische Teleskope 75 Fernrohrtypen 76 Refraktoren Reflektoren Fokus Optische Fehler 82 Farbfehler Kugelgestaltsfehler Bildfeldwölbung Koma Astigmatismus Verzeichnung Bildverzerrungen Helligkeitsinhomogenität Objektive 86 Linsenobjektive Spiegelobjektive Vergütung Optische Qualitätsprüfung RC-Wert RGB-Chromasietest Okulare 97 Zusatzoptiken 100 Barlow-Linse Shapley-Linse Flattener Spezialokulare Spektroskopie Herschel-Prisma Fabry-Pérot-Interferometer Vergrößerung 103 Welche Vergrößerung ist die Beste? Blickfeld 105 Lichtstärke 106 Kontrast Dämmerungszahl Auflösungsvermögen 108 Strehl-Zahl Luftunruhe (Seeing) 112 Tubusseeing Kuppelseeing Gebäudeseeing Montierungen 113 Nachführfehler -
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. -
Survey of Britain's Most Powerful Radial Engine : an Example Of
JULY 5TH, 1945 FLIGHT Survey of Britain's Most Powerful Radial Engine : An Example of . r l^OgiCal Layout to Achieve Compactness with Power T has been eommbn knowledge far some time past that •power figure of 3,500, the b.h.p. /litre of both Hercules the Bristol Aeroplane Co., Ltd., have been engaged with Centaurus is 46.5, although we know that the latter engine the production of a larger and improved model in the is somewhat better than this, as may be rough!y indicated age of radial, air-cooled, sleeve-valve engines with which by the figures for b.h.p./sq. in. of piston area, these ey have for so long enhanced their reputation. This being respectively:. Hercules 4.93. and Centaurus better mmon knowledge—the result of unofficial "leaks"— than 5.34. • f ibraced the facts that the new engine was an 18-cylinder : Cooling Arrangements lit of over 2,000 h.p. and was called the Centaurug.. ther than this nothing much was generally known until As an indication of refinement in the design of the cowl- nctioned reference, to the engine was made with the ing, if. we take as a datum the frontal area of the Hercules lease of the Short Shetland flying boat (Flight, May 17th, at 2,122 sq. in. and give it the value of unity, then the 145), when it was revealed that the Centaurus was of Centaurus frontal area of 2,402 sq. in. gives a comparative 'er 2,500 h.p. ratio of 1.13:1, which is well below the relative h.p..ratio Even now we are not permitted to give any indication of 1.385 :1, itself a conservative figure. -
Constructing a Galactic Coordinate System Based on Near-Infrared and Radio Catalogs
A&A 536, A102 (2011) Astronomy DOI: 10.1051/0004-6361/201116947 & c ESO 2011 Astrophysics Constructing a Galactic coordinate system based on near-infrared and radio catalogs J.-C. Liu1,2,Z.Zhu1,2, and B. Hu3,4 1 Department of astronomy, Nanjing University, Nanjing 210093, PR China e-mail: [jcliu;zhuzi]@nju.edu.cn 2 key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing 210093, PR China 3 Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, PR China 4 Graduate School of Chinese Academy of Sciences, Beijing 100049, PR China e-mail: [email protected] Received 24 March 2011 / Accepted 13 October 2011 ABSTRACT Context. The definition of the Galactic coordinate system was announced by the IAU Sub-Commission 33b on behalf of the IAU in 1958. An unrigorous transformation was adopted by the Hipparcos group to transform the Galactic coordinate system from the FK4-based B1950.0 system to the FK5-based J2000.0 system or to the International Celestial Reference System (ICRS). For more than 50 years, the definition of the Galactic coordinate system has remained unchanged from this IAU1958 version. On the basis of deep and all-sky catalogs, the position of the Galactic plane can be revised and updated definitions of the Galactic coordinate systems can be proposed. Aims. We re-determine the position of the Galactic plane based on modern large catalogs, such as the Two-Micron All-Sky Survey (2MASS) and the SPECFIND v2.0. This paper also aims to propose a possible definition of the optimal Galactic coordinate system by adopting the ICRS position of the Sgr A* at the Galactic center. -
Newpointe-Catalog
NewPointe® Constellation Collections More value from Batesville Constellation Collections 18 Gauge Steel Caskets Leo Collection Leo Brushed Black Silver velvet interior Leo Brushed Black shown with Praying Hands decorative kit. 257178 - half couch Choose from 11 designs. 262411 - full couch See page 15 for your options. • Includes decorative kit option for lid Leo Painted Silver Silver velvet interior 257172 - half couch 262415 - full couch • Includes decorative kit option for lid Leo Brushed Ruby Leo Brushed Blue Leo Painted Sand Leo Painted White Moss Pink velvet interior Light Blue velvet interior Champagne velvet interior Moss Pink velvet interior 257177 - half couch 257179 - half couch 257173 - half couch 257166 - half couch 262410 - full couch 262412 - full couch 262416 - full couch 262414 - full couch • Includes decorative kit option • Includes decorative kit option • Includes decorative kit option • Includes decorative kit option for lid for lid for lid for lid 2 All caskets not available in all locations. Please check to ensure availability in your area. 18 Gauge Steel Caskets Virgo Collection Virgo White/Pink Moss Pink crepe interior| $845 250673 - half couch Virgo White/Pink shown with Roses 254258 - full couch decorative kit and corner decals. Choose from 11 designs. • Includes decorative kit option See page 15 for your options. for lid and corner decals Virgo Blue Light Blue crepe interior 250658 - half couch 254255 - full couch • Includes decorative kit option for lid and corner decals Virgo Silver Virgo White Virgo Copper -
Messier Objects
Messier Objects From the Stocker Astroscience Center at Florida International University Miami Florida The Messier Project Main contributors: • Daniel Puentes • Steven Revesz • Bobby Martinez Charles Messier • Gabriel Salazar • Riya Gandhi • Dr. James Webb – Director, Stocker Astroscience center • All images reduced and combined using MIRA image processing software. (Mirametrics) What are Messier Objects? • Messier objects are a list of astronomical sources compiled by Charles Messier, an 18th and early 19th century astronomer. He created a list of distracting objects to avoid while comet hunting. This list now contains over 110 objects, many of which are the most famous astronomical bodies known. The list contains planetary nebula, star clusters, and other galaxies. - Bobby Martinez The Telescope The telescope used to take these images is an Astronomical Consultants and Equipment (ACE) 24- inch (0.61-meter) Ritchey-Chretien reflecting telescope. It has a focal ratio of F6.2 and is supported on a structure independent of the building that houses it. It is equipped with a Finger Lakes 1kx1k CCD camera cooled to -30o C at the Cassegrain focus. It is equipped with dual filter wheels, the first containing UBVRI scientific filters and the second RGBL color filters. Messier 1 Found 6,500 light years away in the constellation of Taurus, the Crab Nebula (known as M1) is a supernova remnant. The original supernova that formed the crab nebula was observed by Chinese, Japanese and Arab astronomers in 1054 AD as an incredibly bright “Guest star” which was visible for over twenty-two months. The supernova that produced the Crab Nebula is thought to have been an evolved star roughly ten times more massive than the Sun. -
Download This Article in PDF Format
A&A 583, A85 (2015) Astronomy DOI: 10.1051/0004-6361/201526795 & c ESO 2015 Astrophysics Reaching the boundary between stellar kinematic groups and very wide binaries III. Sixteen new stars and eight new wide systems in the β Pictoris moving group F. J. Alonso-Floriano1, J. A. Caballero2, M. Cortés-Contreras1,E.Solano2,3, and D. Montes1 1 Departamento de Astrofísica y Ciencias de la Atmósfera, Facultad de Ciencias Físicas, Universidad Complutense de Madrid, 28040 Madrid, Spain e-mail: [email protected] 2 Centro de Astrobiología (CSIC-INTA), ESAC PO box 78, 28691 Villanueva de la Cañada, Madrid, Spain 3 Spanish Virtual Observatory, ESAC PO box 78, 28691 Villanueva de la Cañada, Madrid, Spain Received 19 June 2015 / Accepted 8 August 2015 ABSTRACT Aims. We look for common proper motion companions to stars of the nearby young β Pictoris moving group. Methods. First, we compiled a list of 185 β Pictoris members and candidate members from 35 representative works. Next, we used the Aladin and STILTS virtual observatory tools and the PPMXL proper motion and Washington Double Star catalogues to look for companion candidates. The resulting potential companions were subjects of a dedicated astro-photometric follow-up using public data from all-sky surveys. After discarding 67 sources by proper motion and 31 by colour-magnitude diagrams, we obtained a final list of 36 common proper motion systems. The binding energy of two of them is perhaps too small to be considered physically bound. Results. Of the 36 pairs and multiple systems, eight are new, 16 have only one stellar component previously classified as a β Pictoris member, and three have secondaries at or below the hydrogen-burning limit. -
Guide Du Ciel Profond
Guide du ciel profond Olivier PETIT 8 mai 2004 2 Introduction hjjdfhgf ghjfghfd fg hdfjgdf gfdhfdk dfkgfd fghfkg fdkg fhdkg fkg kfghfhk Table des mati`eres I Objets par constellation 21 1 Androm`ede (And) Andromeda 23 1.1 Messier 31 (La grande Galaxie d'Androm`ede) . 25 1.2 Messier 32 . 27 1.3 Messier 110 . 29 1.4 NGC 404 . 31 1.5 NGC 752 . 33 1.6 NGC 891 . 35 1.7 NGC 7640 . 37 1.8 NGC 7662 (La boule de neige bleue) . 39 2 La Machine pneumatique (Ant) Antlia 41 2.1 NGC 2997 . 43 3 le Verseau (Aqr) Aquarius 45 3.1 Messier 2 . 47 3.2 Messier 72 . 49 3.3 Messier 73 . 51 3.4 NGC 7009 (La n¶ebuleuse Saturne) . 53 3.5 NGC 7293 (La n¶ebuleuse de l'h¶elice) . 56 3.6 NGC 7492 . 58 3.7 NGC 7606 . 60 3.8 Cederblad 211 (N¶ebuleuse de R Aquarii) . 62 4 l'Aigle (Aql) Aquila 63 4.1 NGC 6709 . 65 4.2 NGC 6741 . 67 4.3 NGC 6751 (La n¶ebuleuse de l’œil flou) . 69 4.4 NGC 6760 . 71 4.5 NGC 6781 (Le nid de l'Aigle ) . 73 TABLE DES MATIERES` 5 4.6 NGC 6790 . 75 4.7 NGC 6804 . 77 4.8 Barnard 142-143 (La tani`ere noire) . 79 5 le B¶elier (Ari) Aries 81 5.1 NGC 772 . 83 6 le Cocher (Aur) Auriga 85 6.1 Messier 36 . 87 6.2 Messier 37 . 89 6.3 Messier 38 . -
2014-08 AUG.Pdf
August First Light Newsletter 1 message August, 2014 Issue 122 AlachuaAstronomyClub.org North Central Florida's Amateur Astronomy Club Serving Alachua County since 1987 BREAKING NEWS -- ROSETTA HAS JUST ARRIVED AT COMET 67/P Member Member Astronomical League Initiated in late 1993 by Europe and the USA, and launched in 2004, the International Rosetta Mission is an historic first: Send a spacecraft to chase and orbit a comet, ride along as the comet plunges sun ward to learn how a frozen comet transforms by the Sun's warmth, and dispatch a controlled lander to make in situ measurements and make first images Member from a comet's surface. NASA Night Sky Network Ten years later Rosetta has now arrived at Comet 67P/Churyumov- Gerasimenko and just successfully made orbit today, 2014 August 6! Unfortunately, global events have foreshadowed this memorable event and news media have largely ignored this impressive space mission. AAC Member photo: The Rosetta comet mission may be the beginning of a story that will tell more about us -- both about our origins and evolution. (Hence, its name "rosetta" for the black basalt stone with inscriptions giving the first clues to deciphering Egyptian hieroglyphics.) Pictures received over past weeks are remarkable with the latest in the past 24 hours showing awesome and incredible detail including views that show the comet is a connected binary object rotating as a unit in 12 hours. Anyone see the glorious pairing of Venus and Jupiter this morning (2016 Aug. 18)? For images see http://www.esa.int/ spaceinimages/Missions/ Except when Mars is occasionally brighter Rosetta than Jupiter, these two planets are the brightest nighttime sky objects (discounting Example Image (Aug. -
ABSTRACT Reported Are the Hearings Held on April 29 and 30, 1969 Before the General Subcommittee on Education of the U.S
DOCUMENT RESUME ED 060 893 LI 003 561 TITLE Hearings Before the General Subcommittee on Education...Ninety-First Congress, First Session on H.R. 8809...April 29 and 30, 1969- National Science Research Data Processing and Information Retrieval System. [Complete Text of the Hearings]. INSTITUTION Congress of the U.S., Washington, D.C. House Committee on Education and Labor. PUB DATE 69 NOTE 408p.;(1400 References) EDRS PRICE MF-$0.65 HC-$16.45 DESCRIPTORS Documentation; Federal Legislation; *Information Processing; *Information Retrieval; *information Systems; *National Programs; *Scientific Research IDENTIFIERS *Scientific and Technical Information ABSTRACT Reported are the hearings held on April 29 and 30, 1969 before the General Subcommittee on Education of the U.S. House of Representatives on H.R. 8809, a bill to amend Title IX of the National Defense Education Act of 1958 to provide for the establishment of a national information retrieval system for , scientific and technical information. The purpose of the act is to implement a nationwide storage and retrieval system for scientific research data, using as many existing facilities as possible in order to avoid duplication and to assure quick access to and a constant inventory of, all science research data. [Testimonies by Dr. John Rothman and Mr. Robert November appeared earlier as ED 051 8611. (SJ) NATIONAL SCIENCE RESEARCH DATAPROCESSING AND INFORMATIONRETRIEVAL SYSTEM HEARINGS BEFORE) TIM GENERAL SUBCOMMITTEEON EDUCATION or Tim COMMITTEE ONEDUCATION ANDLABOR HOUSE OFREPRESENTATIVES NINETY-FIRST CONGRESS FIRST SESSION ON H.R. 8809 A BILL TO AMEND TITLE DC OF THE NATIONALDEFENSE EDUCATION ACT OF 1958TO PROVIDE) FOR MENT OF A NATIONAL ESTABLISH- SCIENCE) RESEARCH DATAPROC- ESSING AND INFORMATIONRETRIEVAL SYSTEM HEARINGS HELD INWASHINGTON, D.C. -
Hesiod Theogony.Pdf
Hesiod (8th or 7th c. BC, composed in Greek) The Homeric epics, the Iliad and the Odyssey, are probably slightly earlier than Hesiod’s two surviving poems, the Works and Days and the Theogony. Yet in many ways Hesiod is the more important author for the study of Greek mythology. While Homer treats cer- tain aspects of the saga of the Trojan War, he makes no attempt at treating myth more generally. He often includes short digressions and tantalizes us with hints of a broader tra- dition, but much of this remains obscure. Hesiod, by contrast, sought in his Theogony to give a connected account of the creation of the universe. For the study of myth he is im- portant precisely because his is the oldest surviving attempt to treat systematically the mythical tradition from the first gods down to the great heroes. Also unlike the legendary Homer, Hesiod is for us an historical figure and a real per- sonality. His Works and Days contains a great deal of autobiographical information, in- cluding his birthplace (Ascra in Boiotia), where his father had come from (Cyme in Asia Minor), and the name of his brother (Perses), with whom he had a dispute that was the inspiration for composing the Works and Days. His exact date cannot be determined with precision, but there is general agreement that he lived in the 8th century or perhaps the early 7th century BC. His life, therefore, was approximately contemporaneous with the beginning of alphabetic writing in the Greek world. Although we do not know whether Hesiod himself employed this new invention in composing his poems, we can be certain that it was soon used to record and pass them on. -
1 Reading Athenaios' Epigraphical Hymn to Apollo: Critical Edition And
Reading Athenaios’ Epigraphical Hymn to Apollo: Critical Edition and Commentaries DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of The Ohio State University By Corey M. Hackworth Graduate Program in Greek and Latin The Ohio State University 2015 Dissertation Committee: Fritz Graf, Advisor Benjamin Acosta-Hughes Carolina López-Ruiz 1 Copyright by Corey M. Hackworth 2015 2 Abstract This dissertation is a study of the Epigraphical Hymn to Apollo that was found at Delphi in 1893, and since attributed to Athenaios. It is believed to have been performed as part of the Athenian Pythaïdes festival in the year 128/7 BCE. After a brief introduction to the hymn, I provide a survey and history of the most important editions of the text. I offer a new critical edition equipped with a detailed apparatus. This is followed by an extended epigraphical commentary which aims to describe the history of, and arguments for and and against, readings of the text as well as proposed supplements and restorations. The guiding principle of this edition is a conservative one—to indicate where there is uncertainty, and to avoid relying on other, similar, texts as a resource for textual restoration. A commentary follows, which traces word usage and history, in an attempt to explore how an audience might have responded to the various choices of vocabulary employed throughout the text. Emphasis is placed on Athenaios’ predilection to utilize new words, as well as words that are non-traditional for Apolline narrative. The commentary considers what role prior word usage (texts) may have played as intertexts, or sources of poetic resonance in the ears of an audience.