Evolved Stars at High Angular Resolution: Present and Future
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Beetlejuice Handbook for the Recently Deceased Hardcover
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Space Trivia Questions and Answers
Space Trivia Questions From: conversationstartersworld.com/space-trivia-questions 1. What type of galaxy is the most common in the universe? Elliptical galaxies Galaxies are categorized as elliptical, spiral, or irregular. There are at least two trillion galaxies in the universe. Each galaxy is bound by gravity and consists of stars, dust, interstellar gas, and dark matter. They range in size from a few billion stars to one hundred trillion stars. The oldest and most distant observed galaxy is actually 32 billion light years from Earth and is located in the constellation Ursa Major. 2. What is the coldest place in the universe? (Hint: It’s a nebula.) The Boomerang Nebula The Boomerang Nebula is one degree Kelvin which is -458 degrees Fahrenheit or -272.15 degrees Celsius. It is located in the Centaurus constellation and is colder than the background temperature of deep space. 3. The hottest place in the universe is located in which constellation? The constellation Virgo The hottest place in the universe is actually a cloud of gas surrounding a swarm of galaxies that are clustered together in the Virgo constellation. The temperature there reaches 300 million degrees Celsius. The cloud is believed to have been formed as a result of colliding galaxies going at speeds of 2,500 miles per second. 4. How old is the universe in light years? (Plus or minus 1 billion light years.) 13.8 billion light years old Scientists used various methods to estimate its age. These included methods such as measuring the composition of matter and energy density in the universe. -
Durham E-Theses
Durham E-Theses First visibility of the lunar crescent and other problems in historical astronomy. Fatoohi, Louay J. How to cite: Fatoohi, Louay J. (1998) First visibility of the lunar crescent and other problems in historical astronomy., Durham theses, Durham University. Available at Durham E-Theses Online: http://etheses.dur.ac.uk/996/ Use policy The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that: • a full bibliographic reference is made to the original source • a link is made to the metadata record in Durham E-Theses • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders. Please consult the full Durham E-Theses policy for further details. Academic Support Oce, Durham University, University Oce, Old Elvet, Durham DH1 3HP e-mail: [email protected] Tel: +44 0191 334 6107 http://etheses.dur.ac.uk me91 In the name of Allah, the Gracious, the Merciful >° 9 43'' 0' eji e' e e> igo4 U61 J CO J: lic 6..ý v Lo ý , ý.,, "ý J ýs ýºý. ur ý,r11 Lýi is' ý9r ZU LZJE rju No disaster can befall on the earth or in your souls but it is in a book before We bring it into being; that is easy for Allah. In order that you may not grieve for what has escaped you, nor be exultant at what He has given you; and Allah does not love any prideful boaster. -
Instrumental Methods for Professional and Amateur
Instrumental Methods for Professional and Amateur Collaborations in Planetary Astronomy Olivier Mousis, Ricardo Hueso, Jean-Philippe Beaulieu, Sylvain Bouley, Benoît Carry, Francois Colas, Alain Klotz, Christophe Pellier, Jean-Marc Petit, Philippe Rousselot, et al. To cite this version: Olivier Mousis, Ricardo Hueso, Jean-Philippe Beaulieu, Sylvain Bouley, Benoît Carry, et al.. Instru- mental Methods for Professional and Amateur Collaborations in Planetary Astronomy. Experimental Astronomy, Springer Link, 2014, 38 (1-2), pp.91-191. 10.1007/s10686-014-9379-0. hal-00833466 HAL Id: hal-00833466 https://hal.archives-ouvertes.fr/hal-00833466 Submitted on 3 Jun 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Instrumental Methods for Professional and Amateur Collaborations in Planetary Astronomy O. Mousis, R. Hueso, J.-P. Beaulieu, S. Bouley, B. Carry, F. Colas, A. Klotz, C. Pellier, J.-M. Petit, P. Rousselot, M. Ali-Dib, W. Beisker, M. Birlan, C. Buil, A. Delsanti, E. Frappa, H. B. Hammel, A.-C. Levasseur-Regourd, G. S. Orton, A. Sanchez-Lavega,´ A. Santerne, P. Tanga, J. Vaubaillon, B. Zanda, D. Baratoux, T. Bohm,¨ V. Boudon, A. Bouquet, L. Buzzi, J.-L. Dauvergne, A. -
Symposium on Telescope Science
Proceedings for the 26th Annual Conference of the Society for Astronomical Sciences Symposium on Telescope Science Editors: Brian D. Warner Jerry Foote David A. Kenyon Dale Mais May 22-24, 2007 Northwoods Resort, Big Bear Lake, CA Reprints of Papers Distribution of reprints of papers by any author of a given paper, either before or after the publication of the proceedings is allowed under the following guidelines. 1. The copyright remains with the author(s). 2. Under no circumstances may anyone other than the author(s) of a paper distribute a reprint without the express written permission of all author(s) of the paper. 3. Limited excerpts may be used in a review of the reprint as long as the inclusion of the excerpts is NOT used to make or imply an endorsement by the Society for Astronomical Sciences of any product or service. Notice The preceding “Reprint of Papers” supersedes the one that appeared in the original print version Disclaimer The acceptance of a paper for the SAS proceedings can not be used to imply or infer an endorsement by the Society for Astronomical Sciences of any product, service, or method mentioned in the paper. Published by the Society for Astronomical Sciences, Inc. First printed: May 2007 ISBN: 0-9714693-6-9 Table of Contents Table of Contents PREFACE 7 CONFERENCE SPONSORS 9 Submitted Papers THE OLIN EGGEN PROJECT ARNE HENDEN 13 AMATEUR AND PROFESSIONAL ASTRONOMER COLLABORATION EXOPLANET RESEARCH PROGRAMS AND TECHNIQUES RON BISSINGER 17 EXOPLANET OBSERVING TIPS BRUCE L. GARY 23 STUDY OF CEPHEID VARIABLES AS A JOINT SPECTROSCOPY PROJECT THOMAS C. -
Pulsating Components in Binary and Multiple Stellar Systems---A
Research in Astron. & Astrophys. Vol.15 (2015) No.?, 000–000 (Last modified: — December 6, 2014; 10:26 ) Research in Astronomy and Astrophysics Pulsating Components in Binary and Multiple Stellar Systems — A Catalog of Oscillating Binaries ∗ A.-Y. Zhou National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China; [email protected] Abstract We present an up-to-date catalog of pulsating binaries, i.e. the binary and multiple stellar systems containing pulsating components, along with a statistics on them. Compared to the earlier compilation by Soydugan et al.(2006a) of 25 δ Scuti-type ‘oscillating Algol-type eclipsing binaries’ (oEA), the recent col- lection of 74 oEA by Liakos et al.(2012), and the collection of Cepheids in binaries by Szabados (2003a), the numbers and types of pulsating variables in binaries are now extended. The total numbers of pulsating binary/multiple stellar systems have increased to be 515 as of 2014 October 26, among which 262+ are oscillating eclipsing binaries and the oEA containing δ Scuti componentsare updated to be 96. The catalog is intended to be a collection of various pulsating binary stars across the Hertzsprung-Russell diagram. We reviewed the open questions, advances and prospects connecting pulsation/oscillation and binarity. The observational implication of binary systems with pulsating components, to stellar evolution theories is also addressed. In addition, we have searched the Simbad database for candidate pulsating binaries. As a result, 322 candidates were extracted. Furthermore, a brief statistics on Algol-type eclipsing binaries (EA) based on the existing catalogs is given. We got 5315 EA, of which there are 904 EA with spectral types A and F. -
VLBI Observations of Sio Masers Around AH Scorpii
VLBI Observations of SiO Masers around AH Scorpii Xi Chen1 & Zhi-Qiang Shen1 ABSTRACT We report the first Very Long Baseline Array (VLBA) observations of 43 GHz v=1, J=1–0 SiO masers in the circumstellar envelope of the M-type semi-regular supergiant variable star AH Sco at 2 epochs separated by 12 days in March 2004. These high-resolution VLBA images reveal that the distribution of SiO masers is roughly on a persistent elliptical ring with the lengths of the major and minor axes of about 18.5 and 15.8 mas, respectively, along a position angle of 150◦. And the red-shifted masers are found to be slightly closer to the central star than the blue-shifted masers. The line-of-sight velocity structure of the SiO masers shows that with respect to the systemic velocity of −6.8 km s−1 the higher velocity features are closer to the star, which can be well explained by the simple outflow or infall without rotation kinematics of SiO masers around AH Sco. Study of proper motions of 59 matched features between two epochs clearly indicates that the SiO maser shell around AH Sco was undergoing an overall contraction to the star at a velocity of ≈13 km s−1 at a distance of 2.26 kpc to AH Sco. Our 3- dimensional maser kinematics model further suggests that such an inward motion is very likely due to the gravitation of the central star. The distance to AH Sco of 2.26±0.19 kpc obtained from the 3-dimensional kinematics model fitting is consistent with its kinematic distance of 2.0 kpc. -
Reading Chapter 8: Sec
Reading Chapter 8: Sec. 8.1 (Spectra p. 202-211) Sec. 8.1 Optional: 212-219 Sec. 8.2 H-R Diagram Chapter 9: Not covered Chapter 10: Sec. 10.1 10.2 optional Chapter 10: Sec. 10.3 required Croswell: Chapters 6-9 H-R diagram Stars fall into four categories of stars: 1.main-sequence stars 2. giants 3. supergiants 4. white dwarfs. HRDiagram.anim.mp4 UY Scuti is the largest Star Currently Known Antares, a SUPERGIANT in Scorpius RUY Scuti = 1700 RSUN UY Scuti is the largest Star Currently Known Spectroscopic Parallax ! Spectroscopy allows us to: ! 1. Determine spectral type, hence temperature ! 2. Determine luminosity class (I - VI) (see Sec. 9.5) ! If a star can be placed on the HR diagram, then its absolute magnitude (MV) can be determined. ! By measuring its apparent mag, distance can be determined: ! This method of determining distances is called spectroscopic “parallax” ! Less precise than usual parallax... Stellar Evolution ! As a star ages, it undergoes changes in its Luminosity & Temperature. ! It “moves on the HR Diagram” ! Stars on the Main Sequence (MS) are all fusing Hydrogen. ! When their Hydrogen supply runs out, they leave the MS. ! More massive stars leave first. What powers the Sun? (C&O 10.3) Could it be Chemical Reactions? If so, then how much energy, E, is available? How long could the Sun be powered by chemical reactions? The Sun produces 4 x 1026 Joules/s t = E /LSun Chemical reactions typically release: ~4 eV of energy = 4 * 1.6 x 10-19 J ~ 10-18 J, per atom If every atom in the Sun burns (like coal), then the energy available is: E = n * 10-18 J . -
The Eldorado Star Party 2017 Telescope Observing Club by Bill Flanagan Houston Astronomical Society
The Eldorado Star Party 2017 Telescope Observing Club by Bill Flanagan Houston Astronomical Society Purpose and Rules Welcome to the Annual ESP Telescope Club! The main purpose of this club is to give you an opportunity to observe some of the showpiece objects of the fall season under the pristine skies of Southwest Texas. In addition, we have included a few items on the observing lists that may challenge you to observe some fainter and more obscure objects that present themselves at their very best under the dark skies of the Eldorado Star Party. The rules are simple; just observe the required number of objects listed while you are at the Eldorado Star Party to receive a club badge. Big & Bright The telescope program, “Big & Bright,” is a list of 30 objects. This observing list consists of some objects that are apparently big and/or bright and some objects that are intrinsically big and/or bright. Of course the apparently bright objects will be easy to find and should be fun to observe under the dark sky conditions at the X-Bar Ranch. Observing these bright objects under the dark skies of ESP will permit you to see a lot of detail that is not visible under light polluted skies. Some of the intrinsically big and bright objects may be more challenging because at the extreme distance of these objects they will appear small and dim. Nonetheless the challenge of hunting them down and then pondering how far away and energetic they are can be just as rewarding as observing the brighter, easier objects on the list. -
Proquest Dissertations
IMPROVING OUR UNDERSTANDING OF SRC VARIABLE STARS by Kathleen Elizabeth Moncrieff A thesis submitted to the faculty of Saint Mary's University in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Astronomy April 2011, Halifax, Nova Scotia Copyright © 2011 Kathleen Elizabeth Moncrieff Approved: Dr. David G. Turner, Chair Approved: Dr. C. Ian Short, Committee Member Approved: Dr. Eric G. Hintz, External Examiner Date: April 20, 2011 Library and Archives Bibliotheque et 1*1 Canada Archives Canada Published Heritage Direction du Branch Patrimoine de I'edition 395 Wellington Street 395, rue Wellington OttawaONK1A0N4 OttawaONK1A0N4 Canada Canada Your file Votre reference ISBN: 978-0-494-79650-4 Our file Notre reference ISBN: 978-0-494-79650-4 NOTICE: AVIS: The author has granted a non L'auteur a accorde une licence non exclusive exclusive license allowing Library and permettant a la Bibliotheque et Archives Archives Canada to reproduce, Canada de reproduire, publier, archiver, publish, archive, preserve, conserve, sauvegarder, conserver, transmettre au public communicate to the public by par telecommunication ou par I'lnternet, prefer, telecommunication or on the Internet, distribuer et vendre des theses partout dans le loan, distribute and sell theses monde, a des fins commerciales ou autres, sur worldwide, for commercial or non support microforme, papier, electronique et/ou commercial purposes, in microform, autres formats. paper, electronic and/or any other formats. The author retains copyright L'auteur conserve la propriete du droit d'auteur ownership and moral rights in this et des droits moraux qui protege cette these. Ni thesis. Neither the thesis nor la these ni des extraits substantiels de celle-ci substantial extracts from it may be ne doivent etre imprimes ou autrement printed or otherwise reproduced reproduits sans son autorisation. -
Our Star, the SUN DO NOT EDIT--Changes Must Be Made Through “File Info” DO NOT EDIT--Changes Must Be Made Through “File Info” Correctionkey=NL-A Correctionkey=NL-A
DO NOT EDIT--Changes must be made through “File info” CorrectionKey=NL-A Our Star, the SUN DO NOT EDIT--Changes must be made through “File info” DO NOT EDIT--Changes must be made through “File info” CorrectionKey=NL-A CorrectionKey=NL-A Read Preview — Flip through the book. to Look for words that are new, and share them with a partner. Our Star, Learn 1. observatory A room or building housing an astronomical telescope or other the scientific equipment for the study of natural phenomena. 2. pinhole projector A device used to safely view an image of the sun. SUN Skim — Look at the illustrations and photos. What is happening in the story? Credits: 7 ©solarseven/Shutterstock; 10 ©NASA/A. Lutkus/H. Zell. Can you tell what it will be about? Copyright © by Houghton Mifflin Harcourt Publishing Company All rights reserved. No part of this work may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying or recording, or by any information storage or retrieval system, without the prior written permission of the copyright owner unless such copying is expressly permitted by federal copyright law. Requests for permission to make copies of any part of the work should be submitted through our Permissions website at https://customercare.hmhco.com/contactus/Permissions.html or mailed to Houghton Mifflin Harcourt Publishing Company, Attn: Compliance, Contracts, and Licensing, 9400 Southpark Center Loop, Orlando, Florida 32819-8647. Printed in the U.S.A. ISBN 978-0-358-39412-9 Read — Read to learn how scientists 1 2 3 4 5 6 7 8 9 10 XXXX 29 28 27 26 25 24 23 22 21 20 study the sun, our closest star, without 4500000000 damaging their eyes. -
Free My Robux
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