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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. -
Desert Skies Since 1954 Spring 2015 Volume LXI, Issue 1
Tucson Amateur Astronomy Association Observing our Desert Skies since 1954 Spring 2015 Volume LXI, Issue 1 Inside this issue: The Tadpoles in IC410 President’s 2 Letter Outreach 3, 5 New RideShare 7 Program Observing & 8 - 11 Imaging Featured 12, 14 Articles Classifieds 7 Sponsors 7 Contacts 15 Take Note! Science Fair and Book Festival Reports TAAA member Howard Bower photographed IC 410 which is found in Auriga TAAA RideShare Program using a Telescope Engineering Company TEC 140 ED apochromat refractor with Announced a field flattener resulting in f/7.4. This is a narrow band image with 34 exposures in Hydrogen Alpha (30 minutes each), 34 exposures in Oxygen III (binned 2x2 at Jupiter Opposition 2015 15 minutes each), and 34 exposures in Sulphur II (binned 2x2 at 15 minutes each). Report IC410 is a faint emission nebula surrounding the star cluster NGC 1893. At the Constellation of the top left of the nebula are two objects known as “The Tadpoles”. These are likely Season—Centaurus areas of stellar formation. Each tadpole is about 10 light years long. This object is at a distance of about 12,000 light years. © 2013 Howard Bower. Used by New Items in the Classifieds permission. Desert Skies Page 2 Volume LXI, Issue 1 From Our President As I reviewed the March Bulletin it was really heartwarming to see all of the activities in which we are involved. It takes a lot of Our mission is to provide opportunities for members dedication and hard work to put this all together and make it and the public to share the joy and excitement of work.. -
The Brightest Stars Seite 1 Von 9
The Brightest Stars Seite 1 von 9 The Brightest Stars This is a list of the 300 brightest stars made using data from the Hipparcos catalogue. The stellar distances are only fairly accurate for stars well within 1000 light years. 1 2 3 4 5 6 7 8 9 10 11 12 13 No. Star Names Equatorial Galactic Spectral Vis Abs Prllx Err Dist Coordinates Coordinates Type Mag Mag ly RA Dec l° b° 1. Alpha Canis Majoris Sirius 06 45 -16.7 227.2 -8.9 A1V -1.44 1.45 379.21 1.58 9 2. Alpha Carinae Canopus 06 24 -52.7 261.2 -25.3 F0Ib -0.62 -5.53 10.43 0.53 310 3. Alpha Centauri Rigil Kentaurus 14 40 -60.8 315.8 -0.7 G2V+K1V -0.27 4.08 742.12 1.40 4 4. Alpha Boötis Arcturus 14 16 +19.2 15.2 +69.0 K2III -0.05 -0.31 88.85 0.74 37 5. Alpha Lyrae Vega 18 37 +38.8 67.5 +19.2 A0V 0.03 0.58 128.93 0.55 25 6. Alpha Aurigae Capella 05 17 +46.0 162.6 +4.6 G5III+G0III 0.08 -0.48 77.29 0.89 42 7. Beta Orionis Rigel 05 15 -8.2 209.3 -25.1 B8Ia 0.18 -6.69 4.22 0.81 770 8. Alpha Canis Minoris Procyon 07 39 +5.2 213.7 +13.0 F5IV-V 0.40 2.68 285.93 0.88 11 9. Alpha Eridani Achernar 01 38 -57.2 290.7 -58.8 B3V 0.45 -2.77 22.68 0.57 144 10. -
Las Manos En Las Estrellas
1 LAS MANOS EN LAS ESTRELLAS Diccionario enciclopédico de astronomía en el Lenguaje de Signos francés (LSF) / Bajo la dirección de Dominique Proust / Daniel Abbou Nasro Chab Yves Delaporte Carole Marion Blandine Proust Dominique Proust Nueva edición Dominique Proust, Amelia Ortiz Gil, Beatriz García 2 Trabajo realizado con el subsidio: IAU-OAD TF3 fund project: 2015/12/24 Global Sign Language Universal Encyclopedic Dictionary Traducción Amelia Ortiz-Gil y María Roser García Gil Diseño Silvina Perez Álvarez Con el auspicio de 3 PRÓLOGO Tomar de la mano a las estrellas ¡Yo no estoy sordo sólo soy un poco duro de oído! Esta queja del célebre profesor Tornasol jalona la obra de Hergé y uno podría preguntarse cómo, dentro de un contexto académico y universitario poco inclinado a integrar a la comunidad de los sordos, Tornasol fue capaz de llevar la vida de un profesor y científico 1. Dentro de un sistema de enseñanza en el cual las estructuras están establecidas casi exclusivamente para alumnos que pueden oir, es difícil imaginar a un joven Silvestre (también Arsenio o Cuthbert) Tornasol aprendiendo sin ningún problema balística o física nuclear; podemos probablemente concluir que no era sordo de nacimiento, dado que con su apasionado modo de hablar, su discurso era suficientemente claro para ser entendido por aquéllos que estaban a su alrededor, incluso por aquellos tan distraídos como los (H)(F)ernández. También es destacable que el nombre Haddock era constantemente gritado por Bianca Castafiore, lo que probablemente indica que tenía problemas auditivos en las frecuencias bajas del espectro auditivo (Haddock posiblemente era un bajo-barítono, registro que sin duda su gran consumición de whisky había consolidado), lo que no le impedía llegar a un claro do agudo en la Canción de las Joyas del Fausto de Charles Gounod (1818-1893). -
ESO Annual Report 2004 ESO Annual Report 2004 Presented to the Council by the Director General Dr
ESO Annual Report 2004 ESO Annual Report 2004 presented to the Council by the Director General Dr. Catherine Cesarsky View of La Silla from the 3.6-m telescope. ESO is the foremost intergovernmental European Science and Technology organi- sation in the field of ground-based as- trophysics. It is supported by eleven coun- tries: Belgium, Denmark, France, Finland, Germany, Italy, the Netherlands, Portugal, Sweden, Switzerland and the United Kingdom. Created in 1962, ESO provides state-of- the-art research facilities to European astronomers and astrophysicists. In pur- suit of this task, ESO’s activities cover a wide spectrum including the design and construction of world-class ground-based observational facilities for the member- state scientists, large telescope projects, design of innovative scientific instruments, developing new and advanced techno- logies, furthering European co-operation and carrying out European educational programmes. ESO operates at three sites in the Ataca- ma desert region of Chile. The first site The VLT is a most unusual telescope, is at La Silla, a mountain 600 km north of based on the latest technology. It is not Santiago de Chile, at 2 400 m altitude. just one, but an array of 4 telescopes, It is equipped with several optical tele- each with a main mirror of 8.2-m diame- scopes with mirror diameters of up to ter. With one such telescope, images 3.6-metres. The 3.5-m New Technology of celestial objects as faint as magnitude Telescope (NTT) was the first in the 30 have been obtained in a one-hour ex- world to have a computer-controlled main posure. -
Effects of Rotation Arund the Axis on the Stars, Galaxy and Rotation of Universe* Weitter Duckss1
Effects of Rotation Arund the Axis on the Stars, Galaxy and Rotation of Universe* Weitter Duckss1 1Independent Researcher, Zadar, Croatia *Project: https://www.svemir-ipaksevrti.com/Universe-and-rotation.html; (https://www.svemir-ipaksevrti.com/) Abstract: The article analyzes the blueshift of the objects, through realized measurements of galaxies, mergers and collisions of galaxies and clusters of galaxies and measurements of different galactic speeds, where the closer galaxies move faster than the significantly more distant ones. The clusters of galaxies are analyzed through their non-zero value rotations and gravitational connection of objects inside a cluster, supercluster or a group of galaxies. The constant growth of objects and systems is visible through the constant influx of space material to Earth and other objects inside our system, through percussive craters, scattered around the system, collisions and mergers of objects, galaxies and clusters of galaxies. Atom and its formation, joining into pairs, growth and disintegration are analyzed through atoms of the same values of structure, different aggregate states and contiguous atoms of different aggregate states. The disintegration of complex atoms is followed with the temperature increase above the boiling point of atoms and compounds. The effects of rotation around an axis are analyzed from the small objects through stars, galaxies, superclusters and to the rotation of Universe. The objects' speeds of rotation and their effects are analyzed through the formation and appearance of a system (the formation of orbits, the asteroid belt, gas disk, the appearance of galaxies), its influence on temperature, surface gravity, the force of a magnetic field, the size of a radius. -
Star Name Identity SAO HD FK5 Magnitude Spectral Class Right Ascension Declination Alpheratz Alpha Andromedae 73765 358 1 2,06 B
Star Name Identity SAO HD FK5 Magnitude Spectral class Right ascension Declination Alpheratz Alpha Andromedae 73765 358 1 2,06 B8IVpMnHg 00h 08,388m 29° 05,433' Caph Beta Cassiopeiae 21133 432 2 2,27 F2III-IV 00h 09,178m 59° 08,983' Algenib Gamma Pegasi 91781 886 7 2,83 B2IV 00h 13,237m 15° 11,017' Ankaa Alpha Phoenicis 215093 2261 12 2,39 K0III 00h 26,283m - 42° 18,367' Schedar Alpha Cassiopeiae 21609 3712 21 2,23 K0IIIa 00h 40,508m 56° 32,233' Deneb Kaitos Beta Ceti 147420 4128 22 2,04 G9.5IIICH-1 00h 43,590m - 17° 59,200' Achird Eta Cassiopeiae 21732 4614 3,44 F9V+dM0 00h 49,100m 57° 48,950' Tsih Gamma Cassiopeiae 11482 5394 32 2,47 B0IVe 00h 56,708m 60° 43,000' Haratan Eta ceti 147632 6805 40 3,45 K1 01h 08,583m - 10° 10,933' Mirach Beta Andromedae 54471 6860 42 2,06 M0+IIIa 01h 09,732m 35° 37,233' Alpherg Eta Piscium 92484 9270 50 3,62 G8III 01h 13,483m 15° 20,750' Rukbah Delta Cassiopeiae 22268 8538 48 2,66 A5III-IV 01h 25,817m 60° 14,117' Achernar Alpha Eridani 232481 10144 54 0,46 B3Vpe 01h 37,715m - 57° 14,200' Baten Kaitos Zeta Ceti 148059 11353 62 3,74 K0IIIBa0.1 01h 51,460m - 10° 20,100' Mothallah Alpha Trianguli 74996 11443 64 3,41 F6IV 01h 53,082m 29° 34,733' Mesarthim Gamma Arietis 92681 11502 3,88 A1pSi 01h 53,530m 19° 17,617' Navi Epsilon Cassiopeiae 12031 11415 63 3,38 B3III 01h 54,395m 63° 40,200' Sheratan Beta Arietis 75012 11636 66 2,64 A5V 01h 54,640m 20° 48,483' Risha Alpha Piscium 110291 12447 3,79 A0pSiSr 02h 02,047m 02° 45,817' Almach Gamma Andromedae 37734 12533 73 2,26 K3-IIb 02h 03,900m 42° 19,783' Hamal Alpha -
The Observer of the Twin City Amateur Astronomers
THE OBSERVER OF THE TWIN CITY AMATEUR ASTRONOMERS Volume 46, Number 3 March 2021 INSIDE THIS ISSUE: LAST WORDS AS EDITOR – CARL J. WENNING 1 Last Words as Editor – Carl J. Wenning It has been a pleasure to have 2 President’s Note served as your editor beginning 3 Calendar of Astronomical Events – March 2021 with the January 2014 edition of 3 New & Renewing Members/Dues Blues/E-Mail List The OBSERVER. Since that time, I 4 This Month’s Phases of the Moon have worked to produce 87 issues 4 This Month’s Solar Phenomena that included some 2,100 pages, 4 TCAA Celebrates 61 Years with Annual Meeting about 1,200,000 words, and a myriad of images. Not all the 5 NCRAL 2021 Cancelled words and few of the images were 6 AstroBits – News from Around the TCAA mine; there have been many other 8 TCAA Monthly Online Meeting for March contributors over the years. I 8 History of the TCAA (2010-2019): Part 1 hesitate to mention any names for 9 Spring Mood fear of missing someone. You know their names and have seen the 10 March 2021 with Jeffrey L. Hunt results of their efforts. I thank every one of you who has taken the 20 Public Viewing Sessions for 2021 time and energy necessary to write an article, submit an AstroBit, 21 TCAA Image Gallery or share an image for the benefit of the membership. 21 Did You Know? It is often said that editorship is a thankless task. In the main, 21 TCAA Treasurer’s Report as of February 26, 2021 that’s true – but not always. -
Brightest Stars : Discovering the Universe Through the Sky's Most Brilliant Stars / Fred Schaaf
ffirs.qxd 3/5/08 6:26 AM Page i THE BRIGHTEST STARS DISCOVERING THE UNIVERSE THROUGH THE SKY’S MOST BRILLIANT STARS Fred Schaaf John Wiley & Sons, Inc. flast.qxd 3/5/08 6:28 AM Page vi ffirs.qxd 3/5/08 6:26 AM Page i THE BRIGHTEST STARS DISCOVERING THE UNIVERSE THROUGH THE SKY’S MOST BRILLIANT STARS Fred Schaaf John Wiley & Sons, Inc. ffirs.qxd 3/5/08 6:26 AM Page ii This book is dedicated to my wife, Mamie, who has been the Sirius of my life. This book is printed on acid-free paper. Copyright © 2008 by Fred Schaaf. All rights reserved Published by John Wiley & Sons, Inc., Hoboken, New Jersey Published simultaneously in Canada Illustration credits appear on page 272. Design and composition by Navta Associates, Inc. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning, or otherwise, except as permitted under Section 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 646-8600, or on the web at www.copy- right.com. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, (201) 748-6011, fax (201) 748-6008, or online at http://www.wiley.com/go/permissions. -
The COLOUR of CREATION Observing and Astrophotography Targets “At a Glance” Guide
The COLOUR of CREATION observing and astrophotography targets “at a glance” guide. (Naked eye, binoculars, small and “monster” scopes) Dear fellow amateur astronomer. Please note - this is a work in progress – compiled from several sources - and undoubtedly WILL contain inaccuracies. It would therefor be HIGHLY appreciated if readers would be so kind as to forward ANY corrections and/ or additions (as the document is still obviously incomplete) to: [email protected]. The document will be updated/ revised/ expanded* on a regular basis, replacing the existing document on the ASSA Pretoria website, as well as on the website: coloursofcreation.co.za . This is by no means intended to be a complete nor an exhaustive listing, but rather an “at a glance guide” (2nd column), that will hopefully assist in choosing or eliminating certain objects in a specific constellation for further research, to determine suitability for observation or astrophotography. There is NO copy right - download at will. Warm regards. JohanM. *Edition 1: June 2016 (“Pre-Karoo Star Party version”). “To me, one of the wonders and lures of astronomy is observing a galaxy… realizing you are detecting ancient photons, emitted by billions of stars, reduced to a magnitude below naked eye detection…lying at a distance beyond comprehension...” ASSA 100. (Auke Slotegraaf). Messier objects. Apparent size: degrees, arc minutes, arc seconds. Interesting info. AKA’s. Emphasis, correction. Coordinates, location. Stars, star groups, etc. Variable stars. Double stars. (Only a small number included. “Colourful Ds. descriptions” taken from the book by Sissy Haas). Carbon star. C Asterisma. (Including many “Streicher” objects, taken from Asterism. -
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International Journal of Astronomy 2020, 9(1): 3-11 DOI: 10.5923/j.astronomy.20200901.02 The Processes that Determine the Formation and Chemical Composition of the Atmosphere of the Body in Orbit Weitter Duckss Independent Researcher, Zadar, Croatia Abstract The goal of this article is to analyze the formation of an atmosphere on the orbiting planets and to determine the processes that participate in the formation of an atmospheric chemical composition, as well as in determining it. The research primarily analyzes the formation of atmospheres on the objects of different sizes (masses) and at the same or different orbital distances. This paper analyzes the influence of a star's temperature, the space and the orbit's distance to an object's temperature level, as well as the influence of the operating temperature of atoms and chemical compounds to chemical composition and the representation of elements and compounds in an atmosphere. The objects, which possess different masses and temperatures, are able to create and do create different compositions and sizes of atmospheres in the same or different distances from their main objects (Saturn/Titan or Pluto). The processes that are included in the formation of an atmosphere are the following: operating temperatures of compounds and atoms, migrations of hydrogen, helium and the other elements and compounds towards a superior mass. The lack of oxygen and hydrogen is additionally related to the level of temperature of space, which can be classified into internal (characterized by the lack of hydrogen) and the others (characterized by the lack of oxygen). Keywords Atmosphere, Chemical composition of the atmosphere, Migration of the atmosphere the atmosphere even though they are not in a gaseous state at 1. -
Bibliography from ADS File: Linsky.Bib August 16, 2021 1
Bibliography from ADS file: linsky.bib Wilson, D. J., Froning, C., France, K., et al., “Measurements of the Ultra- August 16, 2021 violet Spectral Characteristics of Low-mass Exoplanetary Systems (Mega- MUSCLES)”, 2019ESS.....431906W ADS Edelman, E., Redfield, S., Linsky, J. L., Wood, B. E., & Müller, H., “Properties Wood, B. E., Müller, H.-R., Redfield, S., et al., “New Observational Constraints of the Interstellar Medium along Sight Lines to Nearby Planet-hosting Stars”, on the Winds of M dwarf Stars”, 2021ApJ...915...37W ADS 2019ApJ...880..117E ADS Duvvuri, G. M., Sebastian Pineda, J., Berta-Thompson, Z. K., et al., “Recon- Airapetian, V., Adibekyan, V., Ansdell, M., et al., “Reconstructing Extreme structing the Extreme Ultraviolet Emission of Cool Dwarfs Using Differential Space Weather From Planet Hosting Stars”, 2019BAAS...51c.564A ADS Emission Measure Polynomials”, 2021ApJ...913...40D ADS Osten, R., Bastian, T., Bower, G., et al., “Advancing Understanding of Star- Provornikova, E., Brandt, P. C., McNutt, Ralph L., J., et al., “Unique helio- Planet Ecosystems in the Next Decade: The Radio Wavelength Perspective”, physics science opportunities along the Interstellar Probe journey up to 1000 2019BAAS...51c.434O ADS AU from the Sun”, 2021EGUGA..2310504P ADS Rau, G., Montez, Rodolfo, J., Carpenter, K., et al., “Cool, evolved stars: results, Wilson, D. J., Froning, C. S., Duvvuri, G. M., et al., “The Mega-MUSCLES challenges, and promises for the next decade”, 2019BAAS...51c.241R Spectral Energy Distribution of TRAPPIST-1”, 2021ApJ...911...18W ADS ADS Drake, J., Alvarado-Gómez, J. D., Airapetian, V., et al., “High-Energy Tilipman, D., Vieytes, M., Linsky, J.