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Sky Highlights for 2021
JANUARY 2021 OBSERVING Celestial Calendar by Bob King Sky Highlights for 2021 Courtesy of Sky & Telescope Sky Highlights for 2021 A full year of observing enjoyment awaits. F or our January Celestial Calendar installment, we’ve decided to pres- The limb of the eclipsed ent a “sneak-peek” selection of some of the most interesting celestial Moon pokes out from highlights for 2021. (Each event will be described in greater detail in upcoming issues.) the umbra in this photo The coming year has its share of excitement, with several fi ne eclipses, captured during the the return of a few modestly bright periodic comets, and the usual April 15, 2014, total assortment of meteor showers and eye-catching conjunctions. lunar eclipse. This view January 3: The Quadrantid meteor shower peaks around 6:30 a.m. PST is similar to how the (14:30 UT). The timing of the peak means the display favors skywatchers Moon will appear at on the West Coast and in Alaska. Unfortunately, light from the waning gibbous Moon in Leo will blot out many of the fainter meteors. maximum eclipse during March 4: Vesta, the brightest and second-most massive asteroid, reaches November’s partial lunar opposition 1¼° northeast of 3.3-magnitude Theta Leonis, in the tail of eclipse. Leo. At magnitude 6.0, Vesta is bright enough to be glimpsed by keen- eyed observers without optical aid from a dark sky. Binoculars will make the asteroid an easy catch. KING BOB Page 1 March 5: Mercury and Jupiter are though many other locations will be just 21′ apart, low in the east-southeast able to see at least part of the event. -
N O T I C E This Document Has Been Reproduced From
N O T I C E THIS DOCUMENT HAS BEEN REPRODUCED FROM MICROFICHE. ALTHOUGH IT IS RECOGNIZED THAT CERTAIN PORTIONS ARE ILLEGIBLE, IT IS BEING RELEASED IN THE INTEREST OF MAKING AVAILABLE AS MUCH INFORMATION AS POSSIBLE P993-198422 International Collogium on Atomic Spectra and Oscillator Strengths for Astrophysical and Laboratory Plasmas (4th) Held at the National institute of Standards and Technology Gaithersburg, Maryland on September 14-17, 1992 (U.S.) National inst. of Standards and Technology (PL) Gaithersburg, MD Apr 93 US. DEPARTMENT OF COMMERCE Ndioul Techcical IMermeNON Service B•11G 2-10i1A2 2 MIST-1 /4 U.S. VZPARTMENT OF COMMERCE (REV. NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY M GONTSOLw1N^BENN O4" COMM 4M /. MANUSCRIPT REVIEW AND APPROVAL "KIST/ p-850 ^' THIS NSTRUCTWNS: ATTACH ORIGINAL OF FORM TO ONE (1) COPY OF MANUSCIIN IT AND SEINE TO: PUBLICATIOM OATS NUMBER PRINTED PAGES April 1993 199 HE SECRETAIIY, APPROPRIATE EDITO RIAL REVIEW BOARD. ITLE AND SUBTITLE (CITE NN PULL) 4rh International Colloquium on Atomic Spectra and Oscillator Strengths for Astrophysical and Laboratory Plasmas -- POSTER PAPERS :ONTIEACT OR GRANT NUMBER TYPE OF REPORT AND/OR PERIOD COMM UTHOR(S) (LAST %,TAME, POST NNITIAL, SECOND INITIAL) PERFORM" ORGANIZATION (CHECK (IQ ONE SOX) EDITORS XXX MIST/GAITHERSBUIIG Sugar, Jack and Leckrone, B:;vid INST/BODUM JILA BOIRDE11 "ORATORY AND DIVISION NAMES (FIRST MOST AUTHOR ONLY) Physics Laboratory/Atomic Physics Division 'PONSORING ORGANIZATION NAME AND COMPLETE ADDRESS TREET, CITY. STATE. ZNh ^y((S/ ,T AiL7A - -ASO IECOMMENDsO FOR MIST PUBLICATION JOVIAMAL OF RESEMICM (MIST JRES) CIONOGRAPK (MIST MN) LETTER CIRCULAR J. PHYS. A CHEM. -
Milan Dimitrijevic Avgust.Qxd
1. M. Platiša, M. Popović, M. Dimitrijević, N. Konjević: 1975, Z. Fur Natur- forsch. 30a, 212 [A 1].* 1. Griem, H. R.: 1975, Stark Broadening, Adv. Atom. Molec. Phys. 11, 331. 2. Platiša, M., Popović, M. V., Konjević, N.: 1975, Stark broadening of O II and O III lines, Astron. Astrophys. 45, 325. 3. Konjević, N., Wiese, W. L.: 1976, Experimental Stark widths and shifts for non-hydrogenic spectral lines of ionized atoms, J. Phys. Chem. Ref. Data 5, 259. 4. Hey, J. D.: 1977, On the Stark broadening of isolated lines of F (II) and Cl (III) by plasmas, JQSRT 18, 649. 5. Hey, J. D.: 1977, Estimates of Stark broadening of some Ar III and Ar IV lines, JQSRT 17, 729. 6. Hey, J. D.: Breger, P.: 1980, Stark broadening of isolated lines emitted by singly - ionized tin, JQSRT 23, 311. 7. Hey, J. D.: Breger, P.: 1981, Stark broadening of isolated ion lines by plas- mas: Application of theory, in Spectral Line Shapes I, ed. B. Wende, W. de Gruyter, 201. 8. Сыркин, М. И.: 1981, Расчеты электронного уширения спектральных линий в теории оптических свойств плазмы, Опт. Спектроск. 51, 778. 9. Wiese, W. L., Konjević, N.: 1982, Regularities and similarities in plasma broadened spectral line widths (Stark widths), JQSRT 28, 185. 10. Konjević, N., Pittman, T. P.: 1986, Stark broadening of spectral lines of ho- mologous, doubly ionized inert gases, JQSRT 35, 473. 11. Konjević, N., Pittman, T. P.: 1987, Stark broadening of spectral lines of ho- mologous, doubly - ionized inert gases, JQSRT 37, 311. 12. Бабин, С. -
GTO Keypad Manual, V5.001
ASTRO-PHYSICS GTO KEYPAD Version v5.xxx Please read the manual even if you are familiar with previous keypad versions Flash RAM Updates Keypad Java updates can be accomplished through the Internet. Check our web site www.astro-physics.com/software-updates/ November 11, 2020 ASTRO-PHYSICS KEYPAD MANUAL FOR MACH2GTO Version 5.xxx November 11, 2020 ABOUT THIS MANUAL 4 REQUIREMENTS 5 What Mount Control Box Do I Need? 5 Can I Upgrade My Present Keypad? 5 GTO KEYPAD 6 Layout and Buttons of the Keypad 6 Vacuum Fluorescent Display 6 N-S-E-W Directional Buttons 6 STOP Button 6 <PREV and NEXT> Buttons 7 Number Buttons 7 GOTO Button 7 ± Button 7 MENU / ESC Button 7 RECAL and NEXT> Buttons Pressed Simultaneously 7 ENT Button 7 Retractable Hanger 7 Keypad Protector 8 Keypad Care and Warranty 8 Warranty 8 Keypad Battery for 512K Memory Boards 8 Cleaning Red Keypad Display 8 Temperature Ratings 8 Environmental Recommendation 8 GETTING STARTED – DO THIS AT HOME, IF POSSIBLE 9 Set Up your Mount and Cable Connections 9 Gather Basic Information 9 Enter Your Location, Time and Date 9 Set Up Your Mount in the Field 10 Polar Alignment 10 Mach2GTO Daytime Alignment Routine 10 KEYPAD START UP SEQUENCE FOR NEW SETUPS OR SETUP IN NEW LOCATION 11 Assemble Your Mount 11 Startup Sequence 11 Location 11 Select Existing Location 11 Set Up New Location 11 Date and Time 12 Additional Information 12 KEYPAD START UP SEQUENCE FOR MOUNTS USED AT THE SAME LOCATION WITHOUT A COMPUTER 13 KEYPAD START UP SEQUENCE FOR COMPUTER CONTROLLED MOUNTS 14 1 OBJECTS MENU – HAVE SOME FUN! -
September 2016 BRAS Newsletter
September 2016 Issue th Next Meeting: Monday, Sept. 12 at 7PM at HRPO (2nd Mondays, Highland Road Park Observatory) What's In This Issue? Due to the 1000 Year Flood in Louisiana beginning August 14, some of our club’s activities were curtailed, thus our newsletter is shorter than usual. President’s Message Secretary's Summary for August (no meeting) Light Pollution Committee Report Outreach Report Photo Gallery 20/20 Vision Campaign Messages from the HRPO Triple Conjunction with Moon Observing Notes: Capricornus – The Sea Goat, by John Nagle & Mythology Newsletter of the Baton Rouge Astronomical Society September 2016 BRAS President’s Message This has been a month of many changes for all of us. Some have lost almost everything in the flood, Some have lost a little, and some have lost nothing... Our hearts go out to all who have lost, and thanks to all who have reached out to help others. Due to the flooding, last month’s meeting, at LIGO, was cancelled. The September meeting will be on the 12th at the Observatory, which did not receive any water during the flood, thus BRAS suffered no loss of property. As part of our Outreach effort. If anyone you know has any telescope and/or equipment that was in water during the flood, let us know and we will try to help clean, adjust, etc. the equipment. On September 2nd (I am a little late with this message), Dr. Alan Stern, the New Horizons Primary Investigator, gave two talks at LSU. The morning talk was for Astronomy graduate students, and was a little technical. -
Rotation Velocities of Red and Blue Field Horizontal-Branch Stars
Rotation Velocities of Red and Blue Field Horizontal-Branch Stars Bradford B. Behr McDonald Observatory 1 University Station, C1400 Austin TX 78712–0259 [email protected] ABSTRACT We present measurements of the projected stellar rotation velocities (v sin i) of a sample of 45 candidate field horizontal-branch (HB) stars spanning a wide range of effective temperature, from red HB stars with Teff ≃ 5000K to blue HB stars with Teff of 17000K. Among the cooler blue HB stars (Teff = 7500– 11500 K), we confirm prior studies showing that although a majority of stars rotate at v sin i < 15 km s−1, there exists a subset of “fast rotators” with v sin i as high as 30–35kms−1. All but one of the red HB stars in our sample have v sin i < 10 km s−1, and no analogous rotation bimodality is evident. We also identify a narrow-lined hot star (Teff ≃ 16000 K) with enhanced photospheric metal abundances and helium depletion, similar to the abundance patterns found among hot BHB stars in globular clusters, and four other stars that may also belong in this category. We discuss details of the spectral line fitting procedure that we use to deduce v sin i, and explore how measurements of field HB star rotation may shed light on the issue of HB star rotation in globular clusters. arXiv:astro-ph/0307232v1 11 Jul 2003 Subject headings: stars: horizontal-branch, stars: rotation, stars: abundances 1. Introduction and motivation The horizontal branch (HB) stars found in globular clusters exhibit a variety of photo- metric and spectroscopic characteristics which are not well explained by canonical models of stellar evolution. -
S.No Reg. No Company Name 1 2 AHMEDABAD MANUFACTURING and CALICO PRINTING CO
LIST OF DEFAULTING COMPANIES IN GUJRAT S.No Reg. No Company_Name 1 2 AHMEDABAD MANUFACTURING AND CALICO PRINTING CO. LTD. 2 3 GUJARAT GINNING & MFG CO.LIMITED. 3 7 THE ARYODAYA SPG & WVG.CO.LIMITED. 4 8 40817HCHOWK & AHMEDABAD MFG CO.LIMITED. 5 9 RAJNAGAR SPG & WVG MFG.CO.LIMITED. 6 10 HMEDABAD COTTON MFG. CO.LIMITED. 7 12 12DISPLAY STATUSSTEEL INDUSTRIES PVT. LTD. 8 18 ISHWER COTTON G.N.& PRES.CO.LIMITED. 9 22 THE AHMEDABAD NEW COTTON MILLS CO.LIMITED. 10 25 BHARAT KHAND TEXTILE MANUFACTURING CO LTD 11 27 HIMABHAI MANUFACTURING CO LTD 12 29 JEHANGIR VAKIL MILLS CO PVT LTD 13 30 GUJARAT OIL MILL & MFG CO LTD 14 31 RUSTOMJI MANGALDAS & COMPANY LTD 15 34 FINE KNITTING CO LTD 16 40 AHMEDABAD LAXMI COTTON MILLS CO.LIMITED. 17 42 AHMEDABAD KAISER-I-HIND MILLS CO LTD 18 45 AHMEDABAD NEW TEXTILE MILS CO LTD 19 47 SHRI VIVEKANAND MILLS LTD 20 49 MARSDEN SPINNING & MANUFACTURING CO LTD 21 50 ASHOKA MILLS LTD. 22 54 AHMEDABAD CYCLE & MOTORS TRADING CO PVT LTD 23 68 SHRI AMRUTA MILLS LTD 24 78 VIJAY MILLS CO LTD 25 79 SHRI ARBUDA MILLS LTD. 26 81 DHARWAR ELECTRICAL INDUSTRIES LTD 27 85 ANANTA MILLS LTD 28 87 BHIKABHAI JIVABHAI & CO PVT LTD 29 89 J R VAKHARIA & SONS PVT LTD 30 99 BIHARI MILLS LIMITED 31 101 ROHIT MILLS LTD 32 106 AHMEDABAD FIBRE-SALES & SUPPLIES LTD 33 107 GUJARAT PAPER MILLS LTD 34 109 IDEAL MOTORS LTD 35 110 MODEL THEATRES PVT LTD 36 115 HIMATLAL MOTILAL & CO LTD.(IN LIQ.) 37 116 RAMANLAL KANAIYALAL & CO LTD.(LIQ). -
CCD Double Star Measurements - Personal Observations: #Report 1
Vol. 8 No. 3 July 1, 2012 Journal of Double Star Observations Page 193 CCD Double Star Measurements - Personal Observations: #Report 1 Giuseppe Micello Bologna Emilia Romagna - Italy EMAIL: [email protected] Abstract: This report submits CCD measurements of 49 pairs, observed in the period No- vember 2011 – January 2012. Possible new pairs, not cataloged in the Washington Double Star Catalog, are suggested. Orionis (precise coordinate from the Aladin Sky At- Introduction las: 05:19:06.14 +02:34:27.0, Figure 3) and new pair Between November 2011 and January 2012, I in system STF 721/GUI 7/BU 557 (precise coordinate made measurements of 49 double and multiple stars. from the Aladin Sky Atlas: 05:29:39.01 +03:06:47.5, For these measurements, I used a Schmidt- Figure 4). Cassegrain 235/2350 and a Maksutov-Cassegrain In this system, GUI 7AD is a neglected double 150/1800 on equatorial mount and the optical train star and we have only one measurement, dating back composed of a CCD camera, Imaging Source to 1904. DMK21AU, and an IR Cut Filter on Flip Mirror. The method is the same that I reported in a pre- Acknowledgements vious papers [1, 2] where I used Reduc by Florent This research has made use of the catalogs pre- Losse for data reduction,. sent in The Aladin Sky Atlas. Astrometric measurements and references to im- I thank Florent Losse for excellent software Re- ages and notes, are included in Table 1. duc. This paper also includes new possible pairs not I thank the Washington Double Star Catalog and cataloged in the Washington Double Star Catalog [3]. -
Binocular Challenges
This page intentionally left blank Cosmic Challenge Listing more than 500 sky targets, both near and far, in 187 challenges, this observing guide will test novice astronomers and advanced veterans alike. Its unique mix of Solar System and deep-sky targets will have observers hunting for the Apollo lunar landing sites, searching for satellites orbiting the outermost planets, and exploring hundreds of star clusters, nebulae, distant galaxies, and quasars. Each target object is accompanied by a rating indicating how difficult the object is to find, an in-depth visual description, an illustration showing how the object realistically looks, and a detailed finder chart to help you find each challenge quickly and effectively. The guide introduces objects often overlooked in other observing guides and features targets visible in a variety of conditions, from the inner city to the dark countryside. Challenges are provided for viewing by the naked eye, through binoculars, to the largest backyard telescopes. Philip S. Harrington is the author of eight previous books for the amateur astronomer, including Touring the Universe through Binoculars, Star Ware, and Star Watch. He is also a contributing editor for Astronomy magazine, where he has authored the magazine’s monthly “Binocular Universe” column and “Phil Harrington’s Challenge Objects,” a quarterly online column on Astronomy.com. He is an Adjunct Professor at Dowling College and Suffolk County Community College, New York, where he teaches courses in stellar and planetary astronomy. Cosmic Challenge The Ultimate Observing List for Amateurs PHILIP S. HARRINGTON CAMBRIDGE UNIVERSITY PRESS Cambridge, New York, Melbourne, Madrid, Cape Town, Singapore, Sao˜ Paulo, Delhi, Dubai, Tokyo, Mexico City Cambridge University Press The Edinburgh Building, Cambridge CB2 8RU, UK Published in the United States of America by Cambridge University Press, New York www.cambridge.org Information on this title: www.cambridge.org/9780521899369 C P. -
On the Application of Stark Broadening Data Determined with a Semiclassical Perturbation Approach
Atoms 2014, 2, 357-377; doi:10.3390/atoms2030357 OPEN ACCESS atoms ISSN 2218-2004 www.mdpi.com/journal/atoms Article On the Application of Stark Broadening Data Determined with a Semiclassical Perturbation Approach Milan S. Dimitrijević 1,2,* and Sylvie Sahal-Bréchot 2 1 Astronomical Observatory, Volgina 7, 11060 Belgrade, Serbia 2 Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique, Observatoire de Paris, UMR CNRS 8112, UPMC, 5 Place Jules Janssen, 92195 Meudon Cedex, France; E-Mail: [email protected] (S.S.-B.) * Author to whom correspondence should be addressed; E-Mail: [email protected]; Tel.: +381-64-297-8021; Fax: +381-11-2419-553. Received: 5 May 2014; in revised form: 20 June 2014 / Accepted: 16 July 2014 / Published: 7 August 2014 Abstract: The significance of Stark broadening data for problems in astrophysics, physics, as well as for technological plasmas is discussed and applications of Stark broadening parameters calculated using a semiclassical perturbation method are analyzed. Keywords: Stark broadening; isolated lines; impact approximation 1. Introduction Stark broadening parameters of neutral atom and ion lines are of interest for a number of problems in astrophysical, laboratory, laser produced, fusion or technological plasma investigations. Especially the development of space astronomy has enabled the collection of a huge amount of spectroscopic data of all kinds of celestial objects within various spectral ranges. Consequently, the atomic data for trace elements, which had not been -
Fixed Stars Report
FIXED STARS A Solar Writer Report for Andy Gibb Written by Diana K Rosenberg Compliments of:- Cornerstone Astrology http://www.cornerstone-astrology.com/astrology-shop/ Table of Contents · Chart Wheel · Introduction · Fixed Stars · The Tropical And Sidereal Zodiacs · About this Report · Abbreviations · Sources · Your Starsets · Conclusion http://www.cornerstone-astrology.com/astrology-shop/ Page 1 Chart Wheel Andy Gibb 49' 44' 29°‡ Male 18°ˆ 00° 5 Mar 1958 22' À ‡ 6:30 am UT +0:00 ‰ ¾ ɽ 44' Manchester 05° 04°02° 24° 01° ‡ ‡ 53°N30' 46' ˆ ‡ 33'16' 002°W15' ‰ 56' Œ 10' Tropical ¼ Œ Œ 24° 21° 9 8 Placidus ‰ 10 » 13' 04° 11 Š ‘‘ 42' 7 ’ ¶ á ’ …07° 12 ” 05' ” ‘ 06° Ï 29° 29' … 29° Œ45' … 00° Á àà Š à „ 24' ‘ 24' 11' á 6 14°‹ á ¸ 28' Œ14' 15°‹ 1 “ „08° º 5 ¿ 4 2 3 Œ 46' 16' ƒ Ý 24° 02° 22' Ê ƒ 00° 05° Ý 44' 44' 18°‚ 29°Ý 49' http://www.cornerstone-astrology.com/astrology-shop/ Page 2 Astrological Summary Chart Point Positions: Andy Gibb Planet Sign Position House Comment The Moon Virgo 7°Vi05' 7th The Sun Pisces 14°Pi11' 1st Mercury Pisces 15°Pi28' 1st Venus Aquarius 4°Aq42' 12th Mars Capricorn 21°Cp13' 11th Jupiter Scorpio 1°Sc10' 8th Saturn Sagittarius 24°Sg56' 10th Uranus Leo 8°Le14' 6th Neptune Scorpio 4°Sc33' 8th Pluto Virgo 0°Vi45' 7th The North Node Scorpio 2°Sc16' 8th The South Node Taurus 2°Ta16' 2nd The Ascendant Aquarius 29°Aq24' 1st The Midheaven Sagittarius 18°Sg44' 10th The Part of Fortune Virgo 6°Vi29' 7th http://www.cornerstone-astrology.com/astrology-shop/ Page 3 Chart Point Aspects Planet Aspect Planet Orb App/Sep The Moon -
Full White Paper
LIGO SCIENTIFIC COLLABORATION VIRGO COLLABORATION Document Type LIGO–T1400054 VIR-0176A-14 The LSC-Virgo White Paper on Gravitational Wave Searches and Astrophysics (2014-2015 edition) The LSC-Virgo Search Groups, the Data Analysis Software Working Group, the Detector Characterization Working Group and the Computing Committee WWW: http://www.ligo.org/ and http://www.virgo.infn.it Processed with LATEX on 2014/11/21 The LSC-Virgo White Paper on Gravitational Wave Searches and Astrophysics Contents 1 The LSC-Virgo White Paper on Data Analysis 4 1.1 Searches for Signals from Compact Binary Coalescences . .5 1.2 Searches for Generic Transients, or Bursts . .7 1.3 Searches for Continuous Wave Signals . .9 1.4 Searches for Stochastic Gravitational Wave Backgrounds . 11 1.5 Characterization of the Detectors and their Data . 13 1.6 Data Calibration . 15 1.7 Hardware Injections . 16 1.8 Computing and Software . 17 2 Previous Accomplishments (2013-2014) 19 2.1 Burst Working Group . 19 2.2 Compact Binary Coalescences Working Group . 19 2.3 Continuous Waves Group . 20 2.4 Stochastic Group . 21 2.5 Detector Characterization . 21 3 Search Plans for the Advanced Detector Era 23 3.1 All-Sky Burst Search . 24 3.2 Search For Binary Neutron Star Coalescences . 29 3.3 Search for Stellar-Mass Binary Black Hole Coalescences . 37 3.4 Search For Neutron Star – Black Hole Coalescences . 45 3.5 Search for GRB Sources of Transient Gravitational Waves . 57 3.6 Search for Intermediate Mass Black Hole Binary Coalescences . 64 3.7 All-sky Searches for Isolated Spinning Neutron Stars .