Ephemerides Astronomicae. Anni...Ad Meridianum Mediolanensem

Total Page:16

File Type:pdf, Size:1020Kb

Ephemerides Astronomicae. Anni...Ad Meridianum Mediolanensem Informazioni su questo libro Si tratta della copia digitale di un libro che per generazioni è stato conservata negli scaffali di una biblioteca prima di essere digitalizzato da Google nell’ambito del progetto volto a rendere disponibili online i libri di tutto il mondo. Ha sopravvissuto abbastanza per non essere più protetto dai diritti di copyright e diventare di pubblico dominio. Un libro di pubblico dominio è un libro che non è mai stato protetto dal copyright o i cui termini legali di copyright sono scaduti. La classificazione di un libro come di pubblico dominio può variare da paese a paese. I libri di pubblico dominio sono l’anello di congiunzione con il passato, rappresentano un patrimonio storico, culturale e di conoscenza spesso difficile da scoprire. Commenti, note e altre annotazioni a margine presenti nel volume originale compariranno in questo file, come testimonianza del lungo viaggio percorso dal libro, dall’editore originale alla biblioteca, per giungere fino a te. Linee guide per l’utilizzo Google è orgoglioso di essere il partner delle biblioteche per digitalizzare i materiali di pubblico dominio e renderli universalmente disponibili. I libri di pubblico dominio appartengono al pubblico e noi ne siamo solamente i custodi. Tuttavia questo lavoro è oneroso, pertanto, per poter continuare ad offrire questo servizio abbiamo preso alcune iniziative per impedire l’utilizzo illecito da parte di soggetti commerciali, compresa l’imposizione di restrizioni sull’invio di query automatizzate. Inoltre ti chiediamo di: + Non fare un uso commerciale di questi file Abbiamo concepito Google Ricerca Libri per l’uso da parte dei singoli utenti privati e ti chiediamo di utilizzare questi file per uso personale e non a fini commerciali. + Non inviare query automatizzate Non inviare a Google query automatizzate di alcun tipo. Se stai effettuando delle ricerche nel campo della traduzione automatica, del riconoscimento ottico dei caratteri (OCR) o in altri campi dove necessiti di utilizzare grandi quantità di testo, ti invitiamo a contattarci. Incoraggiamo l’uso dei materiali di pubblico dominio per questi scopi e potremmo esserti di aiuto. + Conserva la filigrana La "filigrana" (watermark) di Google che compare in ciascun file è essenziale per informare gli utenti su questo progetto e aiutarli a trovare materiali aggiuntivi tramite Google Ricerca Libri. Non rimuoverla. + Fanne un uso legale Indipendentemente dall’utilizzo che ne farai, ricordati che è tua responsabilità accertati di farne un uso legale. Non dare per scontato che, poiché un libro è di pubblico dominio per gli utenti degli Stati Uniti, sia di pubblico dominio anche per gli utenti di altri paesi. I criteri che stabiliscono se un libro è protetto da copyright variano da Paese a Paese e non possiamo offrire indicazioni se un determinato uso del libro è consentito. Non dare per scontato che poiché un libro compare in Google Ricerca Libri ciò significhi che può essere utilizzato in qualsiasi modo e in qualsiasi Paese del mondo. Le sanzioni per le violazioni del copyright possono essere molto severe. Informazioni su Google Ricerca Libri La missione di Google è organizzare le informazioni a livello mondiale e renderle universalmente accessibili e fruibili. Google Ricerca Libri aiuta i lettori a scoprire i libri di tutto il mondo e consente ad autori ed editori di raggiungere un pubblico più ampio. Puoi effettuare una ricerca sul Web nell’intero testo di questo libro da http://books.google.com 1 EPHEMERIDES ASTRONOMICAE Anni 1783 AD MERIDIANUM MEDIOLANENSEM SUPPUTAT AE AB ANGELO DE CESARIS APPENDIEROVA ACCEDIT Cum Obſervationibus & / Opuſculis & c . & c . & c . MAT FISICO - MA A hamie MEDIOLANI . MDCCLXXXI . 400 . APUD JOSEPH GALEATIUM REGIUM TYPOGRAPHUM Superiorum permiſu . in . 16665 上 In Appendice ad Ephemerides habentur , quae ſequuntur . ! De latitudine Speculae Altron . Mediol . Corent . D. REGGIO , De media praeceſſione aequinotiorum ex veterum Aſtrono morum obſervationibus colle & ta a D. ORIANI . Obſervationes annis 1778. & 1779. inſtitutae a D.ORIANI , Obſervatio oppoſit.4.cum anni 1780.peracta a D.REGGIO . Obſervatio oppoſit . Hcum anni 1780. pera & ta a D.REGGIO . Obſervationes Veneris prope maximam ejus digreffionem a Sole anni 1780. peracta a D. REGGIO . Obſervatio oppoſit . H cum eo anni 1781. pera & ta a D.REGGIO . Obſervatio oppofitionis 4 menſe Maji 1781. a D. ALLODIO . Oppoſitio of anni 1781. determinata a D. DE CESARIS . Oppoſitio Saturni anni 1781. determinata a D. ORIANI . Obſervationes Mercurii circa ejus maximam digreſſionem a Sole an , 1781. peractae a D. REGGIO . Obſervationes Veneris antea & poft ejus conjun & ionem ſu periorem cum Sole an . 1781. inſtitutae a D. ALLODIO . Obſervationes Cometae menſe Martii an . 1781. detecti & adhuc apparentis habitae a D. ORIANI . Obſervatio Eclipſ.mx diei 16.O & .an.1781.habita a D.ORIANI . Obſervationes Satellitum 2 habitae tubo Gregor . duorum pe dum a D.REGGIO , & D. DE CESARIS comparatae cum prae cipuis correſpondentibus , & cum tabulis a CI.WARGENTIN . Obſervationes Satellitum Jovis habitae tubo achromatico Dollondiano octo pedum a D. ORIANI .. Obſervationes Meteorologicae an . 1780. habitae in Specula Aſtronomica Mediolanenſi a D. Reggio . FESTA MOBILIA . Septuageſima 16. Februarii Dies Cinerum 5. Martii Paſcha Reſurrectionis 20. Aprilis Rogationes Ritu Romano 20. AlceoGo Domini 27. O 28. ) Maji . 29. ) Rogationes Ritu Ambrofiano 2. 3. 4.0 Pentecottes Dominica SS . Trinitatis 15. Junii Solemnitas Corporis Chriſti 19 . Adventus Ritu Ambrogano Novembris Adventus 16. ) Ritu Romano 30. ) CYCLORUM NUMERI . Numerus aureus 17 I Indi & tio Romana Cyclus Solaris 23 Littera Domiöicalis --- E Epacta XXVI QUATUOR ANNI TEMPORA . Vere 12. 14. 15. Martii Eſtate . 11. 13. 14. Junii Autumno 17. 19. 20. Septembris Hyeme 17. 19. 20. Decembris OBLIQUITAS ECLIPTICAB :. 1. Januarii 23 ° 28 ' 13''S . 1. Aprilis 23. 28. 13 of 1. Julii 23. 28. 13,2 I. O & tobris 33. 28. 129 ECLIPSES ANNI 1783 . 3 Martii . Eclipſis Solis Mediolani inviſibilis : conjun & tio 7 go ' mane . viſibilis : oppol 18 Marti . Ecliplis Lunae Mediolani tio od 59 ' veſpere . Initium cclipſis 8k 100 Immerſio totalis 9 10 Initium emerſionis rob so ' Finis eclipfis il sol Quantitas eclipſis 21 digit . ia partibus umbrae auſtralibus . I Aprilis . Eclipfis Solis Mediolani inviſibilis : conjun Etio gh 17 ' veſpere . 27 Auguſti . Eclipſis Solis Mediolani inviſibilis : conjun & tio ich 17 ' veſpere . : oppoſitio 10 Septembris . Eclipſis Lunae Mediolani viſibilis 12h 16 ' . Initium eclipſis 106 27 ' Immerſio totalis 11 26 Initium emerfionis 134 26 " Finis eclipſis 146 61 Quantitas eclipſis 21. digit . ia partibus umbrae auſtralibus , . 26 Septembris . Eclipſis Solis Mediolani inviſibilis 33 , fic N. B. Occultatio - Scorpii , quae notara eſt pag . legi debet Immerſ 126 9 ' * Diſt . min . 1 Emerſ , 136 24 1 9 JANUARIUS 1783 . I Dies Dies Phaenomena so Obſervationes Phaenomena Se Obfervationes Solis Lunge Sol Luna ? culmin . ad y Sagittarii 20h 48 s in parallelo y Leporis joh 29 ' ad dat Sagitt . 16 ' , uh 15 ' , 2 18h 29. Novilnnium 20h isi parall . - Corvi culm . 16h 57 ' ) 9 in 384ad , Capri & Veneris 15h 13 ' , & 10 in parall , Hydr . culm . 17h illin nodo defcendente Saturni 10h 15 ? Sady & Capri 6h 10 ' , & ghez ' parall . e Corvi culm . 16h 16 ' ) 13 in bado Aquarii sh 41 ' parall , 6 Leporis culm . 9h 24 ' } 16 in culm.gh 43 | 9 ad o Piſcium ih 3 ' 17 in parall . & Leporis Quadrans 226 12 ' Aquarii 14h 24 ' . Primus 19 in ſigno Arietis 7h 17 ' Ceti culm . 4h 14 ' 12 ad 3 24 in parall . & 22'13 ad % Tauri 16h 3 parall . s Scorp . culm . 19 " zih 18 ' in 8h 34 ' 14 Apogea ad 8 Tauri 29 in parall . a Leporis culm . 23 ' 15 ad 136 Tauri gh 18 ' in parall . B Canis culm . yh 6h 47 ' , 17 ad 1 , 5 , Geminor.34 58 ' , 14h 26 ' Dies 2h 51 !. Phaenomena so Objervationes 18 Plenilunium Planetarum | Im . iih 20 ' ) 21 adx Leo.Em. 12. 23 dift . B. 6 s Virginis 12h 16 ' : fortaſſe ad Jovis differ . latit . 34 ' 22 ad Venus 18. ' occultat . 3 Mars ad a Librae diff . lat . conjunct.Super.20h 1024 ad « Virginis 12h 46 ! Venus in . lat . 25 Ultimus Quadrans 15h 30 ' 5 Mercurius ad Jovis differ . 8 & 19h 24 ' 1 ° 29 ' 27 ad . && Scorpii 43 Ophiuci 16h 15h 16 ' Scorpii diff . lat . 39 ' 28 Perigea ad 7 Mars ad 8 Sagitt . 6h 23 ', & 12h 2 ' Scorpii diff . lat . 1 ° 40 ' 29 ad g & 9 Mars ad Super 12 Mercarius in conjunct . , parallelis pixarum sho ? SaturnusPlanetae 6 in Capric . , > Leporis 17 Mercurius ad Veneris diff . lat . L ° 36 ' Jupiter initio menſis parall in . I. radiis » Sa diff . lat . folaribus , 7 in 18 Jupiter ad Sagittarii 1923 ' gitt . , 10 2. Sagitt . & g Ophiu . , Aphelio 3h 41 ' Capricorni , 297 Leporis 24 Venus in Marsi 18 b in parall . Scorpii , & x 25 | Venus ad Capricorni differ . lat . 44 ' Librae , 36 Ceti , & Scorpii , 7. 6 Capricorpi , 9 , 54 Eridani , 29 Mercurius ad Capricorni diff . 1 ° 36 ' , 19 e Corvi , ' Scorpii 14. Leporis , 27 Corvi 31 / Venus ad y Capric . diff . 10 10 Venus 2 ; in parall . » Scorpii , 27 , Capricorni , 30 8 Aquarii Mercur , 196 Çorvi , 20 , Hydr ., 21 m Sagitt . , . Capric . , 23 ^ Librae , 24 , Scorpii , 26 y Ca pric . , 27 Aquarii , 29 5 Ca pric . , Ophiuci , 31 3 Librae A 1 . 1783 JANUARIUS hebdomade N loete menfis Declinatio ll | Diffe . Longitudo Afcenfio recla Dies Æquatio Dies addenda rentia Solis Solis Solis tempori Auſtralis vero ut babeatur medium M. S. S. 1 S G. M. S G. M. S G. M.S. I Mer . 4. 6,6 9. II . 2. 49 282 . O. 54 23 0. 36 28 , 2 9. 12 , 4 . 2 283. 7. 9 22. 55. 18 2 Jov . 4. 34 , 8 28 , o 3 ) Ven . S. 2,8 9. 13. S. 14 284. 13. 18 22. 49. 32 27 , 6 9. 14. 6. 26 285. 19. 20 22. 43. 19 4 / Sat . $ . 30 , 4 I 27. 7. 39 286. 25. 16 22. 36. 39 s Dom 5. 57,5 26 , 5 2.
Recommended publications
  • A Temperate Rocky Super-Earth Transiting a Nearby Cool Star Jason A
    LETTER doi:10.1038/nature22055 A temperate rocky super-Earth transiting a nearby cool star Jason A. Dittmann1, Jonathan M. Irwin1, David Charbonneau1, Xavier Bonfils2,3, Nicola Astudillo-Defru4, Raphaëlle D. Haywood1, Zachory K. Berta-Thompson5, Elisabeth R. Newton6, Joseph E. Rodriguez1, Jennifer G. Winters1, Thiam-Guan Tan7, Jose-Manuel Almenara2,3,4, François Bouchy8, Xavier Delfosse2,3, Thierry Forveille2,3, Christophe Lovis4, Felipe Murgas2,3,9, Francesco Pepe4, Nuno C. Santos10,11, Stephane Udry4, Anaël Wünsche2,3, Gilbert A. Esquerdo1, David W. Latham1 & Courtney D. Dressing12 15 16,17 M dwarf stars, which have masses less than 60 per cent that of Ks magnitude and empirically determined stellar relationships , the Sun, make up 75 per cent of the population of the stars in the we estimate the stellar mass to be 14.6% that of the Sun and the stellar Galaxy1. The atmospheres of orbiting Earth-sized planets are radius to be 18.6% that of the Sun. We estimate the metal content of the observationally accessible via transmission spectroscopy when star to be approximately half that of the Sun ([Fe/H] = −0.24 ± 0.10; the planets pass in front of these stars2,3. Statistical results suggest 1σ error), and we measure the rotational period of the star to be that the nearest transiting Earth-sized planet in the liquid-water, 131 days from our long-term photometric monitoring (see Methods). habitable zone of an M dwarf star is probably around 10.5 parsecs On 15 September 2014 ut, MEarth-South identified a potential away4. A temperate planet has been discovered orbiting Proxima transit in progress around LHS 1140, and automatically commenced Centauri, the closest M dwarf5, but it probably does not transit and high-cadence follow-up observations (see Extended Data Fig.
    [Show full text]
  • 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.
    [Show full text]
  • R Aquarii: Evidence for a Two-Sided Radio Jet and a Circumbinary Sio Maser Menas Kafatos Chapman University, [email protected]
    Chapman University Chapman University Digital Commons Mathematics, Physics, and Computer Science Science and Technology Faculty Articles and Faculty Articles and Research Research 1989 R Aquarii: Evidence for a Two-Sided Radio Jet and a Circumbinary SiO Maser Menas Kafatos Chapman University, [email protected] J. M. Hollis Blue Bay Res Inc F. Yusef-Zadeh Northwestern University A. G. Michalitsianos NASA, Goddard Space Flight Center M. Elitzur University of Kentucky Follow this and additional works at: http://digitalcommons.chapman.edu/scs_articles Part of the Instrumentation Commons, and the Stars, Interstellar Medium and the Galaxy Commons Recommended Citation Kafatos, M., Hollis, J.M., Yusef-Zadeh, F., Michalitsianos, A.G., Elitzur, M. (1989) R Aquarii: Evidence for a Two-Sided radio Jet and a Circumbinary SiO Maser, The Astrophysical Journal, 346:991-996. doi: 10.1086/168081 This Article is brought to you for free and open access by the Science and Technology Faculty Articles and Research at Chapman University Digital Commons. It has been accepted for inclusion in Mathematics, Physics, and Computer Science Faculty Articles and Research by an authorized administrator of Chapman University Digital Commons. For more information, please contact [email protected]. R Aquarii: Evidence for a Two-Sided Radio Jet and a Circumbinary SiO Maser Comments This article was originally published in Astrophysical Journal, volume 346, in 1989. DOI: 10.1086/168081 Copyright IOP Publishing This article is available at Chapman University Digital Commons: http://digitalcommons.chapman.edu/scs_articles/110 THE ASTROPHYSICAL JOURNAL, 346:991-996, 1989 November 15 © 1989. The American Astronomical Society. All rights reserved. Printed in U.S.A.
    [Show full text]
  • SIAC Newsletter October 2013
    SOUTHEASTERN IOWA ASTRONOMY CLUB THE SIDEREAL TIMES OCTOBER 2013 A M EMBER SOCIETY OF THE ASTRONOMICAL LEAGUE CLUB OFFICERS : MINUTES SEPTEMBER 20, 2013 President Jim Hilkin called the meeting to is meeting night. Jim Hilkin gave an up- Executive Committee order with the following members in attend- date on the following maintenance President Jim Hilkin items: some additional dirt was added to Vice President Libby Snipes ance: Judy Smithson, Libby Snipes, Jim Treasurer Vicki Philabaum Wilt, Ray Reineke, Duane Gerling, Claus the east end of the berm to help block Secretary David Philabaum Benninghoven, Dave Philabaum, John Ton- headlights from cars coming from the Chief Observer David Philabaum ey, and Paul Sly. Vicki Philabaum conduct- beach and area E; the viburnum bushes Members-at-Large Claus Benninghoven ed a tour of the facility for a group from on the north side of the classroom were Duane Gerling Great River Christian School during the removed as they were getting too big for Blake Stumpf meeting. Libby moved to approve the the space; Jim has installed cabinet Board of Directors minutes as published, seconded by Jim Wilt, doors and created a storage area in the Chair Judy Hilkin motion passed. Jim Hilkin read the Treasur- Stone-Kelly dome; the new doors for Vice Chair Ray Reineke er's report from Vicki. Checks were written the Prugh-Carver Observatory are in, Secretary David Philabaum for the phone bill and to Ray for the new but there has been no word from SCC Members-at-Large David Martin about painting them so Barngrover's will Blake Stumpf motor for the Fecker telescope.
    [Show full text]
  • Mein Erstes Teleskop 4
    www.vds-astro.de ISSN 1615-0880 IV/2012 Nr. 43 Zeitschrift der Vereinigung der Sternfreunde e.V. Schwerpunktthema Mein erstes Sturm, Schnee und gute Laune Kometenbahn selbst bestimmt Sternwarten im Porträt Seite 40 Seite 65 Seite 100 Teleskop Editorial 1 Liebe Mitglieder, liebe Sternfreunde, zu unserem Schwerpunktthema in diesem Journal hätte jeder Sternfreund etwas beitragen können. Wer erinnert sich nicht an sein erstes (eigenes) Teleskop oder sogar an seine ersten Geh-(Seh-)versuche am gestirnten Himmel? Besonders das erste selbstgebaute Fernrohr wird immer einen herausragenden Platz beim Titelbild: Erbauer einnehmen. Lesen Sie, wie es anderen Sternguckern ergangen ist ... Jupiter und Ganymed am 26.09.2011 um 00:40 UT, aufgenommen am In ganz Deutschland konnten die Sternschnuppen des Perseiden-Stroms bei 20-Zoll-Newton (f/4) aus der Garten- bestem Wetter beobachtet werden. Zufällig traf sich der VdS-Vorstand fast voll- sternwarte der Familie Winterer in zählig genau zum Maximums-Wochende zu einer Sitzung und durfte so das Meitingen. Zur Bildgewinnung kam eine schöne Himmelsspektakel unter dem herrlichen Himmel der Lüneburger Heide DMK 21 AU618 von TheImagingSource anschauen, wunderbar und beindruckend! Schicken Sie uns doch Ihre Bilder der und ein Astronomik-RGB-Filtersatz II diesjährigen Perseiden zur Veröffentlichung im Journal für Astronomie! zum Einsatz. Die Bildsequenzen wurden mit FireCapture aufgenommen. Die Betreuung der Mitglieds-Sternwarten und -Vereine geht weiter, auch in Die Effek tivbrennweite lag bei 8.270 diesem Journal stellen sich wieder vier von ihnen vor. Überzeugen Sie sich selbst mm. Die Summenbilder der Kanäle von deren Angebot und planen Sie doch mal einen Besuch. Ab Spätherbst kann Rot, Grün und Blau wurden jeweils sich zusätzlich jeder Mitgliedsverein über eine Deutschlandkarte auf der VdS- einzeln mit AviStack gemittelt, für die Website vorstellen.
    [Show full text]
  • Planet Searching from Ground and Space
    Planet Searching from Ground and Space Olivier Guyon Japanese Astrobiology Center, National Institutes for Natural Sciences (NINS) Subaru Telescope, National Astronomical Observatory of Japan (NINS) University of Arizona Breakthrough Watch committee chair June 8, 2017 Perspectives on O/IR Astronomy in the Mid-2020s Outline 1. Current status of exoplanet research 2. Finding the nearest habitable planets 3. Characterizing exoplanets 4. Breakthrough Watch and Starshot initiatives 5. Subaru Telescope instrumentation, Japan/US collaboration toward TMT 6. Recommendations 1. Current Status of Exoplanet Research 1. Current Status of Exoplanet Research 3,500 confirmed planets (as of June 2017) Most identified by Jupiter two techniques: Radial Velocity with Earth ground-based telescopes Transit (most with NASA Kepler mission) Strong observational bias towards short period and high mass (lower right corner) 1. Current Status of Exoplanet Research Key statistical findings Hot Jupiters, P < 10 day, M > 0.1 Jupiter Planetary systems are common occurrence rate ~1% 23 systems with > 5 planets Most frequent around F, G stars (no analog in our solar system) credits: NASA/CXC/M. Weiss 7-planet Trappist-1 system, credit: NASA-JPL Earth-size rocky planets are ~10% of Sun-like stars and ~50% abundant of M-type stars have potentially habitable planets credits: NASA Ames/SETI Institute/JPL-Caltech Dressing & Charbonneau 2013 1. Current Status of Exoplanet Research Spectacular discoveries around M stars Trappist-1 system 7 planets ~3 in hab zone likely rocky 40 ly away Proxima Cen b planet Possibly habitable Closest star to our solar system Faint red M-type star 1. Current Status of Exoplanet Research Spectroscopic characterization limited to Giant young planets or close-in planets For most planets, only Mass, radius and orbit are constrained HR 8799 d planet (direct imaging) Currie, Burrows et al.
    [Show full text]
  • Sky Notes: 2013 August & September
    Sky Notes: 2013 August & September by Brian Mills − (Written for 22:00 UT on 2013 September 1.) the other members of the Summer Triangle evening position of the ecliptic is the cause of Altair in Aquila, which is always easy to iden- our problems from the UK at this time of year, In the north Ursa Major has almost completed tify because of the two stars (β and γ Aquilae) being at most 15° high. This means that it makes its descent towards the horizon meaning that on that attend it on either side. a very shallow angle with the horizon, not helped the opposite side of the pole, Cassiopeia is climb- Lower, but still on the meridian, is Capricornus by the fact that Mercury is almost 3° below the ing and Cepheus is approaching culmination not which contains the globular cluster M30, visible ecliptic when the next elongation occurs in the far from the zenith. There are a number of open in larger binoculars although a moder- clusters that fall within the borders of Cepheus, ate sized telescope is needed to begin the brightest being NGC 7160 which lies inside resolving individual stars. Lower still the quadrilateral that makes up the main body of lies the small and insignificant the constellation. At magnitude 6.1 it requires Microscopium. On a really clear only a small telescope or binoculars. Cassiopeia evening it is worth trying to locate its also has its share of such clusters, the best known brightest stars; gamma (γ) at magnitude of which are M52 (magnitude 6.9) and NGC457 4.67 and epsilon (ε) at 4.71 despite their (magnitude 6.4).
    [Show full text]
  • 1903Aj 23 . . . 22K 22 the Asteojsomic Al
    22 THE ASTEOJSOMIC AL JOUENAL. Nos- 531-532 22K . Taking into account the smallness of the weights in- concerned. Through the use of these tables the positions . volved, the individual differences which make up the and motions of many stars not included in the present 23 groups in the preceding table agree^very well. catalogue can be brought into systematic harmony with it, and apparently without materially less accuracy for the in- dividual stars than could be reached by special compu- Tables of Systematic Correction for N2 and A. tations for these stars in conformity with the system of B. 1903AJ The results of the foregoing comparisons. have been This is especially true of the star-places computed by utilized to form tables of systematic corrections for ISr2, An, Dr. Auwers in the catalogues, Ai and As. As will be seen Ai and As. In right-ascension no distinction is necessary by reference to the catalogue the positions and motions of between the various catalogues published by Dr. Auwers, south polar stars taken from N2 agree better with the beginning with the Fundamental-G at alo g ; but in decli- results of this investigation than do those taken from As, nation the distinction between the northern, intermediate, which, in turn, are quoted from the Cape Catalogue for and southern catalogues must be preserved, so far as is 1890. SYSTEMATIC COBEECTIOEB : CEDEE OF DECLINATIONS. Eight-Ascensions ; Cokrections, ¿las and 100z//xtf. Declinations; Corrections, Æs and IOOzZ/x^. B — ISa B —A B —N2 B —An B —Ai âas 100 â[is âas 100 âgô âSs 100
    [Show full text]
  • Planets Solar System Paper Contents
    Planets Solar system paper Contents 1 Jupiter 1 1.1 Structure ............................................... 1 1.1.1 Composition ......................................... 1 1.1.2 Mass and size ......................................... 2 1.1.3 Internal structure ....................................... 2 1.2 Atmosphere .............................................. 3 1.2.1 Cloud layers ......................................... 3 1.2.2 Great Red Spot and other vortices .............................. 4 1.3 Planetary rings ............................................ 4 1.4 Magnetosphere ............................................ 5 1.5 Orbit and rotation ........................................... 5 1.6 Observation .............................................. 6 1.7 Research and exploration ....................................... 6 1.7.1 Pre-telescopic research .................................... 6 1.7.2 Ground-based telescope research ............................... 7 1.7.3 Radiotelescope research ................................... 8 1.7.4 Exploration with space probes ................................ 8 1.8 Moons ................................................. 9 1.8.1 Galilean moons ........................................ 10 1.8.2 Classification of moons .................................... 10 1.9 Interaction with the Solar System ................................... 10 1.9.1 Impacts ............................................ 11 1.10 Possibility of life ........................................... 12 1.11 Mythology .............................................
    [Show full text]
  • Welcome to the Magic Valley Astronomical Society International
    May Highlights International Astronomy Day 2011 Friday, May 6 th , 8:15 PM Once again, the Herrett Center for Arts and Science will be holding their annual Interna- Bimonthly astronomy talk: tional Astronomy Day activities on Saturday May 7th beginning at 10:00 am to 4 pm. To “Mercury, Close Up” An up- better accommodate families. The Center has called upon the Magic Valley Astronomical date on the discoveries from Society to help with activities by providing much needed volunteers. If you want to volun- the MESSENGER probe, the teer, please do, then contact club president Terry Wofford, or Kristi Cederstrom at the first artificial satellite to orbit Herrett Center (732-6657). Activities include: Water bottle rocket making station the innermost planet. Adult (w/launching outside) several make-n-take projects, solar viewings at the observatory, admission: $2.50, students: planetarium shows and finally there will be night telescope viewing at the Centennial Ob- $1.50, children 6 and under servatory beginning at 8:45 pm. NOTE: If you are volunteering for any of the telescope free. activities (safe solar observing or the night viewing) then you must coordinate volunteering through Chris Anderson (732-6663) Saturday May 7th Interna- tional Astronomy Day 2011 There will be a robotics demonstration as well provided by Mark Sneddon, son of former activities will be at the Her- President and club member Jay Sneddon. Participants will build different objects, such as rett Center. Volunteers need an airplane or animal, then program it for movement on the computer. This exhibit was to be there by 9:00 am and well received last year.
    [Show full text]
  • Lists and Charts of Autostar Named Stars
    APPENDIX A Lists and Charts of Autostar Named Stars Table A.I provides a list of named stars that are stored in the Autostar database. Following the list, there are constellation charts which show where the stars are located. The names are in alphabetical orderalong with their Latin designation (see Appendix B for complete list ofconstellations). Names in brackets 0 in the table denote a different spelling to one that is known in the list. The star's co-ordinates are set to the same as accuracy as the Autostar co-ordinates i.e. the RA or Dec 'sec' values are omitted. Autostar option: Select Item: Object --+ Star --+ Named 215 216 Appendix A Table A.1. Autostar Named Star List RA Dec Named Star Fig. Ref. latin Designation Hr Min Deg Min Mag Acamar A5 Theta Eridanus 2 58 .2 - 40 18 3.2 Achernar A5 Alpha Eridanus 1 37.6 - 57 14 0.4 Acrux A4 Alpha Crucis 12 26.5 - 63 05 1.3 Adara A2 EpsilonCanis Majoris 6 58.6 - 28 58 1.5 Albireo A4 BetaCygni 19 30.6 ++27 57 3.0 Alcor Al0 80 Ursae Majoris 13 25.2 + 54 59 4.0 Alcyone A9 EtaTauri 3 47.4 + 24 06 2.8 Aldebaran A9 Alpha Tauri 4 35.8 + 16 30 0.8 Alderamin A3 Alpha Cephei 21 18.5 + 62 35 2.4 Algenib A7 Gamma Pegasi 0 13.2 + 15 11 2.8 Algieba (Algeiba) A6 Gamma leonis 10 19.9 + 19 50 2.6 Algol A8 Beta Persei 3 8.1 + 40 57 2.1 Alhena A5 Gamma Geminorum 6 37.6 + 16 23 1.9 Alioth Al0 EpsilonUrsae Majoris 12 54.0 + 55 57 1.7 Alkaid Al0 Eta Ursae Majoris 13 47.5 + 49 18 1.8 Almaak (Almach) Al Gamma Andromedae 2 3.8 + 42 19 2.2 Alnair A6 Alpha Gruis 22 8.2 - 46 57 1.7 Alnath (Elnath) A9 BetaTauri 5 26.2
    [Show full text]
  • Gerard Peter Kuiper
    NATIONAL ACADEMY OF SCIENCES G ERARD PETER K UIPER 1905—1973 A Biographical Memoir by D A L E P . CRUIKSHANK Any opinions expressed in this memoir are those of the author(s) and do not necessarily reflect the views of the National Academy of Sciences. Biographical Memoir COPYRIGHT 1993 NATIONAL ACADEMY OF SCIENCES WASHINGTON D.C. GERARD PETER KUIPER December 7, 1905-December 24, 1973 BY DALE P.CRUIKSHANK OW DID THE SUN and planets form in the cloud of gas H and dust called the solar nebula, and how does this genesis relate to the formation of other star systems? What is the nature of the atmospheres and the surfaces of the planets in the contemporary solar system, and what have been their evolutionary histories? These were the driv- ing intellectual questions that inspired Gerard Kuiper's life of observational study of stellar evolution, the properties of star systems, and the physics and chemistry of the Sun's family of planets. Gerard Peter Kuiper (originally Gerrit Pieter Kuiper) was born in The Netherlands in the municipality of Haringcarspel, now Harenkarspel, on December 7, 1905, son of Gerrit and Antje (de Vries) Kuiper. He died in Mexico City on December 24, 1973, while on a trip with his wife and his long-time friend and colleague, Fred Whipple. He was the first of four children; his sister, Augusta, was a teacher before marriage, and his brothers, Pieter and Nicolaas, were trained as engineers. Kuiper's father was a tailor. Young Kuiper was an outstanding grade school student, but for a high school education he was obliged to leave his small town and go to Haarlem to a special institution that would lead him to a career as a primary school teacher.
    [Show full text]