The Young Active Binary Star EK Draconis
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Dhruva the Ancient Indian Pole Star: Fixity, Rotation and Movement
Indian Journal of History of Science, 46.1 (2011) 23-39 DHRUVA THE ANCIENT INDIAN POLE STAR: FIXITY, ROTATION AND MOVEMENT R N IYENGAR* (Received 1 February 2010; revised 24 January 2011) Ancient historical layers of Hindu astronomy are explored in this paper with the help of the Purân.as and the Vedic texts. It is found that Dhruva as described in the Brahmân.d.a and the Vis.n.u purân.a was a star located at the tail of a celestial animal figure known as the Úiúumâra or the Dolphin. This constellation, which can be easily recognized as the modern Draco, is described vividly and accurately in the ancient texts. The body parts of the animal figure are made of fourteen stars, the last four of which including Dhruva on the tail are said to never set. The Taittirîya Âran.yaka text of the Kr.s.n.a-yajurveda school which is more ancient than the above Purân.as describes this constellation by the same name and lists fourteen stars the last among them being named Abhaya, equated with Dhruva, at the tail end of the figure. The accented Vedic text Ekâgni-kân.d.a of the same school recommends observation of Dhruva the fixed Pole Star during marriages. The above Vedic texts are more ancient than the Gr.hya-sûtra literature which was the basis for indologists to deny the existence of a fixed North Star during the Vedic period. However the various Purân.ic and Vedic textual evidence studied here for the first time, leads to the conclusion that in India for the Yajurvedic people Thuban (α-Draconis) was Dhruva the Pole Star c 2800 BC. -
Henryk Siemiradzki and the International Artistic Milieu
ACCADEMIA POL ACCA DELLE SCIENZE DELLE SCIENZE POL ACCA ACCADEMIA BIBLIOTECA E CENTRO DI STUDI A ROMA E CENTRO BIBLIOTECA ACCADEMIA POLACCA DELLE SCIENZE BIBLIOTECA E CENTRO DI STUDI A ROMA CONFERENZE 145 HENRYK SIEMIRADZKI AND THE INTERNATIONAL ARTISTIC MILIEU FRANCESCO TOMMASINI, L’ITALIA E LA RINASCITA E LA RINASCITA L’ITALIA TOMMASINI, FRANCESCO IN ROME DELLA INDIPENDENTE POLONIA A CURA DI MARIA NITKA AGNIESZKA KLUCZEWSKA-WÓJCIK CONFERENZE 145 ACCADEMIA POLACCA DELLE SCIENZE BIBLIOTECA E CENTRO DI STUDI A ROMA ISSN 0239-8605 ROMA 2020 ISBN 978-83-956575-5-9 CONFERENZE 145 HENRYK SIEMIRADZKI AND THE INTERNATIONAL ARTISTIC MILIEU IN ROME ACCADEMIA POLACCA DELLE SCIENZE BIBLIOTECA E CENTRO DI STUDI A ROMA CONFERENZE 145 HENRYK SIEMIRADZKI AND THE INTERNATIONAL ARTISTIC MILIEU IN ROME A CURA DI MARIA NITKA AGNIESZKA KLUCZEWSKA-WÓJCIK. ROMA 2020 Pubblicato da AccademiaPolacca delle Scienze Bibliotecae Centro di Studi aRoma vicolo Doria, 2 (Palazzo Doria) 00187 Roma tel. +39 066792170 e-mail: [email protected] www.rzym.pan.pl Il convegno ideato dal Polish Institute of World Art Studies (Polski Instytut Studiów nad Sztuką Świata) nell’ambito del programma del Ministero della Scienza e dell’Istruzione Superiore della Repubblica di Polonia (Polish Ministry of Science and Higher Education) “Narodowy Program Rozwoju Humanistyki” (National Programme for the Develop- ment of Humanities) - “Henryk Siemiradzki: Catalogue Raisonné of the Paintings” (“Tradition 1 a”, no. 0504/ nprh4/h1a/83/2015). Il convegno è stato organizzato con il supporto ed il contributo del National Institute of Polish Cultural Heritage POLONIKA (Narodowy Instytut Polskiego Dziedzictwa Kul- turowego za Granicą POLONIKA). Redazione: Maria Nitka, Agnieszka Kluczewska-Wójcik Recensione: Prof. -
About the Foroughi Cup and About the Seven Planets in the Ancient World
Archaeoastronomy and Ancient Technologies 2018, 6(2), 31–37; http://aaatec.org/art/a_cm2 www.aaatec.org ISSN 2310-2144 About the Foroughi Cup and about the seven planets in the Ancient World Mario Codebò 1, Henry De Santis 2 1 Archeoastronomia Ligustica, S.I.A., SAIt, Genoa, Italy; E-Mail: [email protected] 2 Archeoastronomia Ligustica, S.I.A., SAIt, Genoa, Italy; E-Mail: [email protected] Abstract The Foroughi Cup is an artefact of the 8th century BC of Aramaic cultural context, inside which images of stars and constellations are reproduced. In this study of ours we start from the conclusions reached by Amadasi Guzzo and Castellani in their two works of 2005 and 2006 and we add some further considerations and identifications. We then explain the hypothesis that some cultures of the Ancient World include seven planets, excluding the Moon and the Sun, because Mercury and Venus, always visible only at dawn or at sunset, were perhaps considered four different planets. Finally, we propose the thesis that their evil character depends, as for every new star (novae, supernovae, comets, etc.), on the fact that they alter the synchrony of the cosmos with their variable motion (variable declination heaven bodies). Keywords: Foroughi Cup, planets, Moon, Sun, Aramaic culture. The Foroughi Cup The Foroughi Cup is a bronze artefact (fig. 1), dated to the first half of the 1st millennium BC, containing in its concave interior a representation of the celestial vault and seven very small Aramaic inscriptions, only three of which are quite legible: ŠMŠ = Sun (above the representation of the Sun, in which a lion's head is also engraved); ŠHR = Moon (above the representation of the crescent of the Moon); hypothetically R'Š ŠR' = Head of the Bull (above the bucranium). -
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. -
Binocular Double Star Logbook
Astronomical League Binocular Double Star Club Logbook 1 Table of Contents Alpha Cassiopeiae 3 14 Canis Minoris Sh 251 (Oph) Psi 1 Piscium* F Hydrae Psi 1 & 2 Draconis* 37 Ceti Iota Cancri* 10 Σ2273 (Dra) Phi Cassiopeiae 27 Hydrae 40 & 41 Draconis* 93 (Rho) & 94 Piscium Tau 1 Hydrae 67 Ophiuchi 17 Chi Ceti 35 & 36 (Zeta) Leonis 39 Draconis 56 Andromedae 4 42 Leonis Minoris Epsilon 1 & 2 Lyrae* (U) 14 Arietis Σ1474 (Hya) Zeta 1 & 2 Lyrae* 59 Andromedae Alpha Ursae Majoris 11 Beta Lyrae* 15 Trianguli Delta Leonis Delta 1 & 2 Lyrae 33 Arietis 83 Leonis Theta Serpentis* 18 19 Tauri Tau Leonis 15 Aquilae 21 & 22 Tauri 5 93 Leonis OΣΣ178 (Aql) Eta Tauri 65 Ursae Majoris 28 Aquilae Phi Tauri 67 Ursae Majoris 12 6 (Alpha) & 8 Vul 62 Tauri 12 Comae Berenices Beta Cygni* Kappa 1 & 2 Tauri 17 Comae Berenices Epsilon Sagittae 19 Theta 1 & 2 Tauri 5 (Kappa) & 6 Draconis 54 Sagittarii 57 Persei 6 32 Camelopardalis* 16 Cygni 88 Tauri Σ1740 (Vir) 57 Aquilae Sigma 1 & 2 Tauri 79 (Zeta) & 80 Ursae Maj* 13 15 Sagittae Tau Tauri 70 Virginis Theta Sagittae 62 Eridani Iota Bootis* O1 (30 & 31) Cyg* 20 Beta Camelopardalis Σ1850 (Boo) 29 Cygni 11 & 12 Camelopardalis 7 Alpha Librae* Alpha 1 & 2 Capricorni* Delta Orionis* Delta Bootis* Beta 1 & 2 Capricorni* 42 & 45 Orionis Mu 1 & 2 Bootis* 14 75 Draconis Theta 2 Orionis* Omega 1 & 2 Scorpii Rho Capricorni Gamma Leporis* Kappa Herculis Omicron Capricorni 21 35 Camelopardalis ?? Nu Scorpii S 752 (Delphinus) 5 Lyncis 8 Nu 1 & 2 Coronae Borealis 48 Cygni Nu Geminorum Rho Ophiuchi 61 Cygni* 20 Geminorum 16 & 17 Draconis* 15 5 (Gamma) & 6 Equulei Zeta Geminorum 36 & 37 Herculis 79 Cygni h 3945 (CMa) Mu 1 & 2 Scorpii Mu Cygni 22 19 Lyncis* Zeta 1 & 2 Scorpii Epsilon Pegasi* Eta Canis Majoris 9 Σ133 (Her) Pi 1 & 2 Pegasi Δ 47 (CMa) 36 Ophiuchi* 33 Pegasi 64 & 65 Geminorum Nu 1 & 2 Draconis* 16 35 Pegasi Knt 4 (Pup) 53 Ophiuchi Delta Cephei* (U) The 28 stars with asterisks are also required for the regular AL Double Star Club. -
Stsci Newsletter: 2011 Volume 028 Issue 02
National Aeronautics and Space Administration Interacting Galaxies UGC 1810 and UGC 1813 Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA) 2011 VOL 28 ISSUE 02 NEWSLETTER Space Telescope Science Institute We received a total of 1,007 proposals, after accounting for duplications Hubble Cycle 19 and withdrawals. Review process Proposal Selection Members of the international astronomical community review Hubble propos- als. Grouped in panels organized by science category, each panel has one or more “mirror” panels to enable transfer of proposals in order to avoid conflicts. In Cycle 19, the panels were divided into the categories of Planets, Stars, Stellar Rachel Somerville, [email protected], Claus Leitherer, [email protected], & Brett Populations and Interstellar Medium (ISM), Galaxies, Active Galactic Nuclei and Blacker, [email protected] the Inter-Galactic Medium (AGN/IGM), and Cosmology, for a total of 14 panels. One of these panels reviewed Regular Guest Observer, Archival, Theory, and Chronology SNAP proposals. The panel chairs also serve as members of the Time Allocation Committee hen the Cycle 19 Call for Proposals was released in December 2010, (TAC), which reviews Large and Archival Legacy proposals. In addition, there Hubble had already seen a full cycle of operation with the newly are three at-large TAC members, whose broad expertise allows them to review installed and repaired instruments calibrated and characterized. W proposals as needed, and to advise panels if the panelists feel they do not have The Advanced Camera for Surveys (ACS), Cosmic Origins Spectrograph (COS), the expertise to review a certain proposal. Fine Guidance Sensor (FGS), Space Telescope Imaging Spectrograph (STIS), and The process of selecting the panelists begins with the selection of the TAC Chair, Wide Field Camera 3 (WFC3) were all close to nominal operation and were avail- about six months prior to the proposal deadline. -
Solar Writer Report for Abraham Lincoln
FIXED STARS A Solar Writer Report for Abraham Lincoln Written by Diana K Rosenberg Compliments of:- Stephanie Johnson Seeing With Stars Astrology PO Box 159 Stepney SA 5069 Australia Tel/Fax: +61 (08) 8331 3057 Email: [email protected] Web: www.esotech.com.au Page 2 Abraham Lincoln Natal Chart 12 Feb 1809 12:40:56 PM UT +0:00 near Hodgenville 37°N35' 085°W45' Tropical Placidus 22' 13° 08°ˆ ‡ 17' ¾ 06' À ¿É ‰ 03° ¼ 09° 00° 06° 09°06° ˆ ˆ ‡ † ‡ 25° 16' 41'08' 40' † 01' 09' Œ 29' ‰ 9 10 23° ¶ 8 27°‰ 11 Ï 27° 01' ‘ ‰02' á 7 12 ‘ áá 23° á 23° ¸ 23°Š27' á Š à „ 28' 28' 6 18' 1 10°‹ º ‹37' 13° 05' ‹ 5 Á 22° ½ 27' 2 4 01' Ü 3 07° Œ ƒ » 09' 23° 09° Ý Ü 06° 16' 06' Ê 00°ƒ 13° 22' Ý 17' 08°‚ Page 23 Astrological Summary Chart Point Positions: Abraham Lincoln Planet Sign Position House Comment The Moon Capricorn 27°Cp01' 12th The Sun Aquarius 23°Aq27' 12th read into 1st House Mercury Pisces 10°Pi18' 1st Venus Aries 7°Ar27' 1st read into 2nd House Mars Libra 25°Li29' 8th Jupiter Pisces 22°Pi05' 1st Saturn Sagittarius 3°Sg08' 9th read into 10th House Uranus Scorpio 9°Sc40' 8th Neptune Sagittarius 6°Sg41' 9th read into 10th House Pluto Pisces 13°Pi37' 1st The North Node Scorpio 6°Sc09' 8th The South Node Taurus 6°Ta09' 2nd The Ascendant Aquarius 23°Aq28' 1st The Midheaven Sagittarius 8°Sg22' 10th The Part of Fortune Capricorn 27°Cp02' 12th Chart Point Aspects Planet Aspect Planet Orb App/Sep The Moon Square Mars 1°32' Separating The Moon Conjunction The Part of Fortune 0°00' Applying The Sun Trine Mars 2°02' Applying The Sun Conjunction The Ascendant -
Planets and Exoplanets
NASE Publications Planets and exoplanets Planets and exoplanets Rosa M. Ros, Hans Deeg International Astronomical Union, Technical University of Catalonia (Spain), Instituto de Astrofísica de Canarias and University of La Laguna (Spain) Summary This workshop provides a series of activities to compare the many observed properties (such as size, distances, orbital speeds and escape velocities) of the planets in our Solar System. Each section provides context to various planetary data tables by providing demonstrations or calculations to contrast the properties of the planets, giving the students a concrete sense for what the data mean. At present, several methods are used to find exoplanets, more or less indirectly. It has been possible to detect nearly 4000 planets, and about 500 systems with multiple planets. Objetives - Understand what the numerical values in the Solar Sytem summary data table mean. - Understand the main characteristics of extrasolar planetary systems by comparing their properties to the orbital system of Jupiter and its Galilean satellites. The Solar System By creating scale models of the Solar System, the students will compare the different planetary parameters. To perform these activities, we will use the data in Table 1. Planets Diameter (km) Distance to Sun (km) Sun 1 392 000 Mercury 4 878 57.9 106 Venus 12 180 108.3 106 Earth 12 756 149.7 106 Marte 6 760 228.1 106 Jupiter 142 800 778.7 106 Saturn 120 000 1 430.1 106 Uranus 50 000 2 876.5 106 Neptune 49 000 4 506.6 106 Table 1: Data of the Solar System bodies In all cases, the main goal of the model is to make the data understandable. -
The Evening Sky Map
I N E D R I A C A S T N E O D I T A C L E O R N I G D S T S H A E P H M O O R C I . Z N O p l f e i n h d o P t O o N ) l h a r g Z i u s , o I l C t P h R I r e o R N ( O o r C r H e t L p h p E E i s t D H a ( r g T F i . O B NORTH D R e N M h t E A X O e s A H U M C T . I P N S L E E P Z “ E A N H O NORTHERN HEMISPHERE M T R T Y N H E ” K E η ) W S . T T E W U B R N W D E T T W T H h A The Evening Sky Map e MAY 2021 E . C ) Cluster O N FREE* EACH MONTH FOR YOU TO EXPLORE, LEARN & ENJOY THE NIGHT SKY r S L a o K e Double r Y E t B h R M t e PERSEUS A a A r CASSIOPEIA n e S SKY MAP SHOWS HOW Get Sky Calendar on Twitter P δ r T C G C A CEPHEUS r E o R e J s O h Sky Calendar – May 2021 http://twitter.com/skymaps M39 s B THE NIGHT SKY LOOKS T U ( O i N s r L D o a j A NE I I a μ p T EARLY MAY PM T 10 r 61 M S o S 3 Last Quarter Moon at 19:51 UT. -
Thursday, December 22Nd Swap Meet & Potluck Get-Together Next First
Io – December 2011 p.1 IO - December 2011 Issue 2011-12 PO Box 7264 Eugene Astronomical Society Annual Club Dues $25 Springfield, OR 97475 President: Sam Pitts - 688-7330 www.eugeneastro.org Secretary: Jerry Oltion - 343-4758 Additional Board members: EAS is a proud member of: Jacob Strandlien, Tony Dandurand, John Loper. Next Meeting: Thursday, December 22nd Swap Meet & Potluck Get-Together Our December meeting will be a chance to visit and share a potluck dinner with fellow amateur astronomers, plus swap extra gear for new and exciting equipment from somebody else’s stash. Bring some food to share and any astronomy gear you’d like to sell, trade, or give away. We will have on hand some of the gear that was donated to the club this summer, including mirrors, lenses, blanks, telescope parts, and even entire telescopes. Come check out the bargains and visit with your fellow amateur astronomers in a relaxed evening before Christmas. We also encourage people to bring any new gear or projects they would like to show the rest of the club. The meeting is at 7:00 on December 22nd at EWEB’s Community Room, 500 E. 4th in Eugene. Next First Quarter Fridays: December 2nd and 30th Our November star party was clouded out, along with a good deal of the month afterward. If that sounds familiar, that’s because it is: I changed the date in the previous sentence from October to November and left the rest of the sentence intact. Yes, our autumn weather is predictable. Here’s hoping for a lucky break in the weather for our two December star parties. -
3-D Starmap 15.0 All Stars Within 15 Parsecs (50 Light-Years) of Sol
3-D Starmap 15.0 All stars within 15 parsecs (50 light-years) of Sol. Gl 815 2.0:14.9:-1.0 All units are in parsecs. (1 parsec = 3.26 light-years) 1.5 Gl 792 Stars are plotted in cartesian x,y,z coordinates. 3.2:14.7:-0.2 X-Y plane is the plane of the galaxy. Alderamin 2.3 -2.8:14.5:2.4 +x is Coreward, -x is Rimward, NN 4276 -3.9:14.4:0.4 +y is Spinward, -y is Trailing 1.2 Star data is from HYG database. 3.2 Stars circled in green are likely to host 14.0 human-habitable planets, according to 3 Eta Cephei 1.3 -1.9:13.9:2.9 the HabCat database. Gray lines link each star with its two closest neighbors. 2.9 3.0 Green lines link habitable stars with their two Hip 101516 5.7:13.5:-2.3 closest habitable neighbors. NN 4338 B GJ 1228 -4.1:13.4:-4.8 3.0 1.5:13.4:6.2 Gl 878 2.6 GJ 1270 0.4 Links are labeled with their distance in parsecs. -4.6:13.3:0.3 -1.5:13.3:-3.3 3.1 2.6 Gl 794 NN 4109 Winchell Chung: Nyrath the nearly wise 5.5:13.1:-2.3 2.0 7.0:13.1:1.5 http://www.projectrho.com/starmap.html 13.0 Gl 738 2.3 6.5:13.0:3.4 Gl 875.1 1.9 -1.2:12.9:-5.9 2.2 1.5 1.6 2.2 2.7 NN 4073 4.6:12.6:4.5 Gl 14 -6.1:12.5:-5.5 Gl 52 2.6 Gl 806 -28..6:12.4:0.3 1.3:12.4:0.2 4.4 3.8 NN 3069 BD+27°4120 2.6 Gl 813 BD+31°3767 -8.5:12.3:-2.3 2.4:12.3:-4.1 4.9:12.3:-3.55.1:12.3:0.8 BD+57°2735 -4.8:12.2:-0.7 19 Draconis -1.2:12.1:9.0 1.7 12.0 2.1 1.3 Gl 742 26 Draconis NN 4228 3.0 -2.4:11.9:5.6 -0.2:11.9:7.6 4.3:11.6.9:-7.4 1.1 2.5 3.8 1.7 2.4 1.9 35 Gamma Cephei GJ 1243 2.1 2.9 -6.4:11.6:3.6 1.9:11.6:2.1 NN 3117 2.3 NN 4040 2.8 -9.5:11.5:0.6 1.9 2.1 4.1 3.4:11.5:6.4 -
Refined Chemical Abundances of Π Dra and Hr 7545 With
International Journal of Research in Science and Technology http://www.ijrst.com (IJRST) 2017, Vol. No. 7, Issue No. III, Jul-Sep e-ISSN: 2249-0604, p-ISSN: 2454-180X REFINED CHEMICAL ABUNDANCES OF DRA AND HR 7545 WITH ATLAS12 *Doğuş Özuyar, *Aslı Elmaslı, *Şeyma Çalışkan *Department of Astronomy and Space Sciences, Ankara University, Science Faculty Ankara, Turkey ABSTRACT We present the more refined abundances of elements (C, O, Na, Mg, Al, Si, Ca, Sc, Ti, V, Cr, Mn, Fe, Ni, Zn, Sr, Y, Zr and Ba) determined using the computationally intensive ATLAS12 atmosphere model for the metallic-line stars Dra and HR 7545. We compare the chemical abundances derived from ATLAS9 model atmosphere with those of derived from ATLAS12. The abundances are in agreement with each other, within their uncertainties. We thus state that ATLAS9 may be used for the abundance analysis of slowly rotating chemically peculiar stars, such as Dra and HR 7545. Keywords: metallic-line stars; Dra; HR 7545; chemical abundance; ATLAS9; ATLAS12) INTRODUCTION One of A-type star sub-groups, called metallic-line A-type (hereafter Am) stars, exhibits generally A-type spectral behavior with some elemental anomalies. These anomalies are typically deficiency of Sc and sometimes Ca, under-abundances in the light elements (C, O, etc.), followed by an increase in iron-peak element (Cr, Mn, Fe, Ni, etc.) abundances, and a considerably overabundances in the heavy elements, such as Sr, Y, Zr, and Ba, with respect to the solar values [1]. Another characteristic property of Am stars is their low rotational velocities compared to normal A-type stars (< 120 km s-1, [2]).