Ephemerides Astronomicae ... Ad Meridianum Medioalanensum

Total Page:16

File Type:pdf, Size:1020Kb

Ephemerides Astronomicae ... Ad Meridianum Medioalanensum 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 Österreichische Nationalbibliothek 308 . 720 - B Alt Archiv des k . k . militär . - geograf . Instititutes . ( Bibliothek ) - Materie : À Seite : 57 N : 208 E Kasten : V . , Fach : XX ÖNB + Z95519809 - - - -- - - - - - - - Archiv des k . k . militär - eeo Graf . Instititutes . ( Bibliothek Materie : A Seite : 57 ; N * : 208 . E - - Kasten : W , Fach € - - - - - + Z95519809 ÖNB XX EPHEMERIDES ASTRONOMICAJË Anni 1798 AD MERIDIANUM MEDIOLANENSEM SU P P UTATA E AB ANGELO DE CESARIS ACCEDIT APPENDIX Cum observationibus & Opusculis . ] INSTITUS MEDIOLANI MDCCXCVII . APUD JOSEPH GALEATIUM TYPOGRAPHUM 308 . 720 - B . ACH ECLIPSES ANNI 1798 . | | 15 Maji . Eclipfis Solis inviſibilis Mediolani . Con junctio Solis & Lunæ 8h 41 ' . Veſpere . 29 Maji . Eclipſis Lunæ . Oppoſitio Solis & Lunæ 64 52 ' . Initium Eclipſis . sk 4 ' Immerſio tota . 6 22 Medium . 6 47 Initium Emerfionis . 7 12 Emerſio tota . 8 30 Quantitas eclipſis dig . 13 ad Auſtrum . Luna oritur Mediolani gh 43 " Sol occidit . 7 39 , unde hujus eclipſis : vix erit confpicuns finis . 8 Novembris . Eclipſis Solis inviſibilis : conjunétio Solis & Lunæ 2h 38 ' a media nocte . 23 Novembris . Eclipfis Lunæ inviſibilis : oppoſitic I 309 a meridie : quantitas eclipfis dig . 7 a Auſtrum . HABENTUR IN APPENDICE . de pintura Pag . U Bſervationes aſtronomicæ habitæ a Franciſco Reggio I Motus proprius x Capellæ ex obſervationibus Medio . lanenſibus comparatis . Eclipſis Solis diei 24 . Junii anno 1797 . 8 ! Saturnus in oppoſitione Soli menſe Decembris anni 1796 . 20 anni Uranus 20US in oppoſitione Soli menfe Februario 1797 . 23 | Mercurius in maxima digreſſione orientali a Sole 1 menſe Majo anni 1797 . 27 | Mercurius in maxima digreffione occidentali a Sole menfe Julio anni 1797 . 29 Sectio tertia de inveſtigandis correctionibus tabula rum ex ejus obfervatis locis geocentricis ex Bare : naba Oriani . 33 | | Conjunctio inferior Veneris & Solis menſe Auguſti 1796 obſervata ab Angelo de Ceſaris . · 79 11 Oppoſitio Saturni menſe Decembris anni 1796 ob ſervata ab Angelo de Ceſaris . 91 Oppofitio Urani menſe Februarii anni 1797 obſer vata ab Angelo de Ceſaris . 94 IN EPHEMERIDIBUS AD ANNUM 1797 . ERRATA , CORRIGE Pag . 43 lin . 2 - P $ z · · PSZ 49 · 25 M M ' 501 SM SM 6 SM . 8MSMO 10 - 34 , 94 - 34 ' 3 , 97 22 SM 8M 5 M 8M ' 16 & M đM ' 28M IM 10 15184 " , 3 25184 " , 3 12 JM M ' 9 16 , 06 17 , 06 13 44 , 024 46 , 765 16 18 , 244 20 , 985 17 23 , 4 27 " , 0 17 32 " , 5 33 ' ' , 5 d I 44 " , 024 46 " , 765 I 34 ' ' , 9 - 36 " , 3 2 23 " 27 " : 4 3611 364 , 8 6 36 " . 36 ' ' , 8 . 6 1911 19 ' ' , 8 4 vera Mercurii Mercurii in orbita 4 . vera Mercurii Mercurii in orbita IN EPHEMERIDIBUS AD ANNUM 1798 . 9 IM & MY IL 50 3° , - FESTA MOBILIA . 41 Septuageſima . Februarii Dies Cinerum . 215 Pascha Resurrectionis . 8 Aprilis Rogationes Ritu Romano . 14 15 16 ) Ascenſio Domini . · · · · · · · 17 S Maji li Rogationes Ritu Ambroſiano . 21 22 23 Pentecoſtes . 27 ) Dominica SS . Trinitatis · · · · · · 3 Junii Solemnitas Corporis Chriſti . 7 n A Adventus Ritu Ambroſiano . 18 Novembris Adventus Ritu Romano . 2 Decembris Cyclorum Numeri . Numerus Aureus . 13 | Indictio Romana . a . I Cyclus Solaris . 15 | Litera Dominicalis , Epacta ' s . 12 | Litera Martyrologii . , g Quatuor Anni Anni Tenpora Tempora . Vere . 28 Februarii 2 3 Martii Æſtate . 30 Maji 1 , 2 Junii Autumno . 19 21 22 Septembris Hyeme . 19 21 22 Decembris Obliquitas Eclipticæ apparens . 1 Januarii 23° 27 ' 56 ' ' , 9 . I Aprilis . 23 27 57 94 1 Julii 23 27 58 ; 0 . 1 O & tobris 23 27 58 , 5 JANUARIUS 1798 . of Phenomena u Obſerva : iones Phenomeno do Obſervationes Solis . Lune . Sol in parallelo Tad e Geminorum 20h iz ! sly Leporis culmin . Job 29 ' 2 Pleniluniuin shall 9 : Corvi culmin . sa 2 ad « Geminorum 18h 25 ' 12 Sol in nodo Saturni . 3ad , Cancri conjunct . app . 17h 24 ' 13€ Corvi culmin . " dit , a limbo Lunæ 2211 16 : Leporis culmin . 24 ' 4 Pcrigea . 178 Leporis culinin . gh 43 blait Leonis 1 h 13 ' 19 Sol in ſigno Aquarii 56 / had c Virginis Ith35 ' 24 8 Ceti culmin . 4h 14 8lUltiinus Quadrans 20 z ' 13 Scorpii culmin . min . 16h II ) dift . * I ' 294 Leporis culmin . 321 91d « Virginis " Em coming . 1 ha 13 Canis culmin . 2 nad 4 s Libræ ad Martisi fad B Scirpii J13 ad A & S Ophiuci gl 22 ' & ich 10 ' 116 Vovilunium 19 ) Apogea . 120 12 : 34 Aquarii 11h 28 ' ; 11h 211 33 Piſeivin 24 Prinus Quadrans , 28 / 1d 13 Tauri 29 ad & Geminorum 30 d x Geminorum 31 Plenilunium 5 hund , Cancii cro Phänomena do Obſervationes Planete in parallelis fixarums Planetarum . JUranuse Serpentis , a Canis minor . 3 Venus in maxima elongationel 8 Aquilæ , , Orionis . I vefpere . Saturnus y Cancri , a , a Arietis , Venus ad o Aquarii diff . lat . 331 uga Tauri , u Geminorum . 7 Mars ad « Libre diff . lat . 331 Jupiter x , de Ceri , , Pegaſi , w Venus ad 1 Aquarii diff . lat . 15 ' | Orionis , n , - Hydræ , Virgin . , TIMercurius in elongatione maxi v Ceti . ma vefpere . Mars , Canis , 3 Hydræ , « Leporis , 12 Mars ad à Libræ diff . lat . 261 B Ceti , 7 , 54 Eridani , Leporis . 13 Mercurius in nodo . Venus 2 , 3 , in Ceti ; < , Eridani . 13 Venus in nodo . 10 a Virginis , - Orionis , « Hydr . 16 Mars ad B Scorpii diff . lat . 32 | | 18 . 8 Eridani ; Serpentis ; , , 18 Mercurius ftat . Orionis . 19 Jupiter ad 24 Ceti diff . lat . 26 | Mercurius , « Leporis , 2 Hydræ ; 26 Mercurius in conjundione infer . ] 0 , 8 Leporis . 10 . 54 , 7 Erid . 26 Mars ad , Ophiuci diif . lat . 41 & Ceti ; , Leonis . 15 , 4g Canis ; 31Jupiter ad e Piſcium diff . lat . 19 53 , Eridani . JANUARIUS 1798 . hebdom menſis Dies Dies Æquatio , Diffe , Longitudo Afcenfio Declinatio . addenda rentia Solis recta Solis tempori Solis Auſtralis vero . ut habeatur medium M . S . S . | S . G . M . S . G . M . S . G . M . S . I Lull . 4 14 , 8 911 24 25 282 24 18 | 22 58 34 que 2 Mart . 4 42 , 7 લે 925 34 | 283 30 25 | 22 53 6 3 Merc . 5 10 , 3 છે 9 12 26 44 | 284 36 38 con 4 Jov . 5 37 , 5 કે 9 14 271 54 285 42 26 22 40 5 Ven . 6 4 , 3 તે 9 15 29 4 | 286 48 18 22 34 0 16 Sat . 1 6 30 , 6 તે 9 16 30 14 | 287 54 3 22 26 44 7 Dom . 656 , 4 9 17 31 23 288 59 39 22 19 % 8 Still . een 9 18 32 32 290 5 7 22 10 53 Mart .
Recommended publications
  • To Trappist-1 RAIR Golaith Ship
    Mission Profile Navigator 10:07 AM - 12/2/2018 page 1 of 10 Interstellar Mission Profile for SGC Navigator - Report - Printable ver 4.3 Start: omicron 2 40 Eri (Star Trek Vulcan home star) (HD Dest: Trappist-1 2Mass J23062928-0502285 in Aquarii [X -9.150] [Y - 26965) (Keid) (HIP 19849) in Eridani [X 14.437] [Y - 38.296] [Z -3.452] 7.102] [Z -2.167] Rendezvous Earth date arrival: Tuesday, December 8, 2420 Ship Type: RAIR Golaith Ship date arrival: Tuesday, January 8, 2419 Type 2: Rendezvous with a coasting leg ( Top speed is reached before mid-point ) Start Position: Start Date: 2-December-2018 Star System omicron 2 40 Eri (Star Trek Vulcan home star) (HD 26965) (Keid) Earth Polar Primary Star: (HIP 19849) RA hours: inactive Type: K0 V Planets: 1e RA min: inactive Binary: B, C, b RA sec: inactive Type: M4.5V, DA2.9 dec. degrees inactive Rank from Earth: 69 Abs Mag.: 5.915956445 dec. minutes inactive dec. seconds inactive Galactic SGC Stats Distance l/y Sector X Y Z Earth to Start Position: 16.2346953 Kappa 14.43696547 -7.10221947 -2.16744969 Destination Arrival Date (Earth time): 8-December-2420 Star System Earth Polar Trappist-1 2Mass J23062928-0502285 Primary Star: RA hours: inactive Type: M8V Planets 4, 3e RA min: inactive Binary: B C RA sec: inactive Type: 0 dec. degrees inactive Rank from Earth 679 Abs Mag.: 18.4 dec. minutes inactive Course Headings SGC decimal dec. seconds inactive RA: (0 <360) 232.905748 dec: (0-180) 91.8817176 Galactic SGC Sector X Y Z Destination: Apparent position | Start of Mission Omega -9.09279603 -38.2336637 -3.46695345 Destination: Real position | Start of Mission Omega -9.09548281 -38.2366036 -3.46626331 Destination: Real position | End of Mission Omega -9.14988933 -38.2961361 -3.45228825 Shifts in distances of Destination Distance l/y X Y Z Change in Apparent vs.
    [Show full text]
  • Double and Multiple Star Measurements in the Northern Sky with a 10” Newtonian and a Fast CCD Camera in 2006 Through 2009
    Vol. 6 No. 3 July 1, 2010 Journal of Double Star Observations Page 180 Double and Multiple Star Measurements in the Northern Sky with a 10” Newtonian and a Fast CCD Camera in 2006 through 2009 Rainer Anton Altenholz/Kiel, Germany e-mail: rainer.anton”at”ki.comcity.de Abstract: Using a 10” Newtonian and a fast CCD camera, recordings of double and multiple stars were made at high frame rates with a notebook computer. From superpositions of “lucky images”, measurements of 139 systems were obtained and compared with literature data. B/w and color images of some noteworthy systems are also presented. mented double stars, as will be described in the next Introduction section. Generally, I used a red filter to cope with By using the technique of “lucky imaging”, seeing chromatic aberration of the Barlow lens, as well as to effects can strongly be reduced, and not only the reso- reduce the atmospheric spectrum. For systems with lution of a given telescope can be pushed to its limits, pronounced color contrast, I also made recordings but also the accuracy of position measurements can be with near-IR, green and blue filters in order to pro- better than this by about one order of magnitude. This duce composite images. This setup was the same as I has already been demonstrated in earlier papers in used with telescopes under the southern sky, and as I this journal [1-3]. Standard deviations of separation have described previously [1-3]. Exposure times varied measurements of less than +/- 0.05 msec were rou- between 0.5 msec and 100 msec, depending on the tinely obtained with telescopes of 40 or 50 cm aper- star brightness, and on the seeing.
    [Show full text]
  • Research Paper in Nature
    LETTER doi:10.1038/nature22055 1 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; all the planets pass in front of these stars2,3. Statistical results suggest errors given in the text are 1σ), and we measure the rotational period that the nearest transiting Earth-sized planet in the liquid-water, of the star to be 131 days from our long-term photometric monitoring habitable zone of an M dwarf star is probably around 10.5 parsecs (see Methods). away4. A temperate planet has been discovered orbiting Proxima On 15 September 2014 ut, MEarth-South identified a potential Centauri, the closest M dwarf5, but it probably does not transit and transit in progress around LHS 1140, and automatically commenced its true mass is unknown.
    [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]
  • Post-Main-Sequence Planetary System Evolution Rsos.Royalsocietypublishing.Org Dimitri Veras
    Post-main-sequence planetary system evolution rsos.royalsocietypublishing.org Dimitri Veras Department of Physics, University of Warwick, Coventry CV4 7AL, UK Review The fates of planetary systems provide unassailable insights Cite this article: Veras D. 2016 into their formation and represent rich cross-disciplinary Post-main-sequence planetary system dynamical laboratories. Mounting observations of post-main- evolution. R. Soc. open sci. 3: 150571. sequence planetary systems necessitate a complementary level http://dx.doi.org/10.1098/rsos.150571 of theoretical scrutiny. Here, I review the diverse dynamical processes which affect planets, asteroids, comets and pebbles as their parent stars evolve into giant branch, white dwarf and neutron stars. This reference provides a foundation for the Received: 23 October 2015 interpretation and modelling of currently known systems and Accepted: 20 January 2016 upcoming discoveries. 1. Introduction Subject Category: Decades of unsuccessful attempts to find planets around other Astronomy Sun-like stars preceded the unexpected 1992 discovery of planetary bodies orbiting a pulsar [1,2]. The three planets around Subject Areas: the millisecond pulsar PSR B1257+12 were the first confidently extrasolar planets/astrophysics/solar system reported extrasolar planets to withstand enduring scrutiny due to their well-constrained masses and orbits. However, a retrospective Keywords: historical analysis reveals even more surprises. We now know that dynamics, white dwarfs, giant branch stars, the eponymous celestial body that Adriaan van Maanen observed pulsars, asteroids, formation in the late 1910s [3,4]isanisolatedwhitedwarf(WD)witha metal-enriched atmosphere: direct evidence for the accretion of planetary remnants. These pioneering discoveries of planetary material around Author for correspondence: or in post-main-sequence (post-MS) stars, although exciting, Dimitri Veras represented a poor harbinger for how the field of exoplanetary e-mail: [email protected] science has since matured.
    [Show full text]
  • Ephemerides Astronomicae ... Ad Meridianum Medioalanensum
    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.
    [Show full text]
  • Double and Multiple Star Measurements at the Southern Sky with a 50Cm-Cassegrain and a Fast CCD Camera in 2008
    Vol. 7 No. 2 April 1, 2011 Journal of Double Star Observations Page 64 Double and Multiple Star Measurements at the Southern Sky with a 50cm-Cassegrain and a Fast CCD Camera in 2008 Rainer Anton Altenholz/Kiel, Germany e-mail: rainer.anton”at”ki.comcity.de Abstract: Using a 50cm Cassegrain in Namibia, recordings of double and multiple stars were made with a fast CCD camera and a notebook computer. From superpositions of “lucky images”, measurements of 149 systems were obtained and compared with literature data. B/W and color images of some remarkable systems are also presented. 50 cm and focal ratio of f/9. It is located on a guest Introduction farm in Namibia and owned by the Internationale As has already been demonstrated in earlier pa- Amateur-Sternwarte (IAS) [1]. The setup for re- pers in this journal, the accuracy of double star cording was the same as I used earlier at home as measurements can be significantly improved by the well as at the southern sky [2-5]. In most recordings, technique of “lucky imaging”. Using short exposure I used a 2x Barlow lens (Televue) to extend the effec- times, only the best frames out of some thousands tive focal length to about 9 m (f/18). With my b/w- are registered and stacked. Thus, seeing effects are CCD camera (DMK21AF04, The Imaging Source) effectively reduced, and the resolution of a telescope with pixel size 5.6 µm square, this results in a reso- can be pushed to its limits, even under non-optimum lution of about 0.13 arcsec/pix.
    [Show full text]
  • Full Program
    1 Schedule Abstracts Author Index 2 Schedule Schedule ............................................................................................................................... 3 Abstracts ............................................................................................................................... 5 Monday, September 12, 2011, 8:30 AM - 10:00 AM ................................................................................ 5 01: Overview of Observations and Welcome ....................................................................................... 5 Monday, September 12, 2011, 10:30 AM - 12:00 PM .............................................................................. 7 02: Radial Velocities ............................................................................................................................. 7 Monday, September 12, 2011, 2:00 PM - 3:30 PM ................................................................................ 10 03: Transiting Planets ......................................................................................................................... 10 Monday, September 12, 2011, 4:00 PM - 5:30 PM ................................................................................ 13 04: Transiting Planets II ...................................................................................................................... 13 Tuesday, September 13, 2011, 8:30 AM - 10:00 AM .............................................................................. 16 05: Planets
    [Show full text]
  • April 2018 BRAS Newsletter
    Monthly Meeting Monday, April 9th at 7PM at HRPO (Monthly meetings are on 2nd Mondays, Highland Road Park Observatory). Presentation: Webinar with Tom Fields, contributing editor to Sky and Telescope, discussing his starlight spectrum analysis software. What's In This Issue? President’s Message Secretary's Summary Outreach Report Light Pollution Committee Report Recent Forum Entries 20/20 Vision Campaign Messages from the HRPO Friday Night Lecture Series NASA Events Globe at Night International Astronomy Day Observing Notes – Sextans & Mythology Like this newsletter? See PAST ISSUES online back to 2009 Visit us on Facebook – Baton Rouge Astronomical Society Newsletter of the Baton Rouge Astronomical Society April 2018 © 2018 President’s Message To recap last month and highlight upcoming events, BRAS got written up in the 225 Magazine, March (photos on Pages 2 and 3). We had a delightful monthly meeting, and I would like to thank John Martinez of the Pontchartrain Astronomy Society for his informative talk on Trappist-1 and the search for Alien Planets In March we planned to have a BRAS Night at Observatory on Saturday, March 17, however it was canceled due to our "fair weather friend" a forecast of less than ideal weather. We expect to have another very soon so let us know if you are willing to come. We said farewell to the long night of winter. Then there is April 9 at HRPO, to which I would like to invite you, your family and friends. The 2018 Annual DSSG Spring Scrimmage will be held from April 12 to April 15 at Feliciana Retreat Center.
    [Show full text]
  • The Occurrence and Architecture of Exoplanetary Systems
    AA53CH11-Winn ARI 16 July 2015 14:41 The Occurrence and Architecture of Exoplanetary Systems Joshua N. Winn1 and Daniel C. Fabrycky2 1Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139; email: [email protected] 2Department of Astronomy and Astrophysics, University of Chicago, Chicago, Illinois 60637; email: [email protected] Annu. Rev. Astron. Astrophys. 2015. 53:409–47 Keywords First published online as a Review in Advance on exoplanets, extrasolar planets, orbital properties, planet formation Annu. Rev. Astron. Astrophys. 2015.53:409-447. Downloaded from www.annualreviews.org June 18, 2015 Access provided by State University of New York - Stony Brook on 08/28/17. For personal use only. The Annual Review of Astronomy and Astrophysics is Abstract online at astro.annualreviews.org The basic geometry of the Solar System—the shapes, spacings, and orienta- This article’s doi: tions of the planetary orbits—has long been a subject of fascination as well as 10.1146/annurev-astro-082214-122246 inspiration for planet-formation theories. For exoplanetary systems, those Copyright c 2015 by Annual Reviews. same properties have only recently come into focus. Here we review our cur- All rights reserved rent knowledge of the occurrence of planets around other stars, their orbital distances and eccentricities, the orbital spacings and mutual inclinations in multiplanet systems, the orientation of the host star’s rotation axis, and the properties of planets in binary-star systems. 409 AA53CH11-Winn ARI 16 July 2015 14:41 1. INTRODUCTION Over the centuries, astronomers gradually became aware of the following properties of the Solar System: The Sun has eight planets, with the four smaller planets (Rp = 0.4–1.0R⊕) interior to the four larger planets (3.9–11.2 R⊕).
    [Show full text]
  • Mitsky Bino Adv AL Mul Date Time Con RA Dec Name Other Name
    Mitsky Bino Adv AL Mul Date Time Con RA Dec Name Other Name Double DS DS DS Stars And 0:04:36 +42d06m00s Otto Struve 514 Y And 0:08:24 +29d05m00s Alpha And Y And 0:10:00 +46d23m00s Struve 3 Y And 0:16:24 +43d36m00s h1947 Y And 0:16:42 +36d38m00s Struve 19 And 0:18:30 +26d08m00s Struve 24 Y And 0:18:42 +33d43m00s Pi And Y And 0:18:42 +34d47m00s 26 And Y And 0:20:54 +32d56m00s AC1 And 0:30:06 +29d45m00s 28 AND And 0:31:00 +34d05m00s STF 33 And 0:32:36 +23d11m00s BU 1310 And 0:32:48 +28d16m00s STT 14 And 0:35:12 +36d49m00s STF 40 Struve 40 Y And 0:36:54 +33d43m00s 29-Pi Andromeda 12/11/2014 20:53 And 0:36:54 +33d43m00s PI AND H 5 17 Y And 0:38:36 +40d59m00s STF 44 And 0:39:18 +30d51m00s DELTA AND Y And 0:39:18 +30d52m00s Beta And Y 12/11/2014 21:01 And 0:40:18 +24d03m00s STF 47 Struve 47 Y Y And 0:44:24 +33d37m00s STF 55 And 0:46:24 +30d56m00s STF 1 And 0:54:42 +39d10m00s STF 72 And 0:55:00 +23d38m00s 36 And Y And 0:56:48 +38d30m00s MU AND And 0:57:12 +23d25m00s Eta And Y And 0:59:30 +44d43m00s ES 155 And 1:00:00 +44d43m00s STF 79 Struve 79 Y And 1:02:48 +47d42m00s HJ 2010 And 1:02:54 +41d21m00s 39 AND And 1:07:48 +46d51m00s BU 397 And 1:08:54 +45d12m00s HJ 2018 And 1:09:42 +38d07m00s HO 214 And 1:17:48 +49d00m00s STF 102 And 1:18:48 +37d22m00s STF 108 Struve 108 Y And 1:18:54 +39d57m00s STT29 And 1:20:48 +46d20m00s STF 112 And 1:27:24 +41d05m00s HO 7 And 1:27:36 +45d24m00s OMEGA AND And 1:38:42 +38d39m00s BU 1166 And 1:39:06 +41d04m00s STF 140 And 1:40:24 +34:20 STF 133 Struve 133 Y And 1:40:36 +40d34m00s TAU AND And 1:45:00 +43d42m00s
    [Show full text]
  • Double Star Measurements at the Internationale Amateur Sternwarte (IAS) in Namibia in 2009 15 Rainer Anton
    Vol. 8 No. 1 January 1, 2012 UniversityJournal of Doubleof South Star ObservationsAlabama Page Journal of Double Star Observations VOLUME 8 NUMBER 1 January 1, 2012 Inside this issue: The Relative Proper Motion of G 167-29 in the Constellation Boötes 2 Joerg S. Schlimmer Astrometric Measurements of the Visual Double Star δ Boötis Chris Estrada, Aaron Gupta, Manav Kohli, Alyssa Lund, Andrew Stout, Bevin Daglen, and J. Joseph 6 Daglen Visual Measurements of a Selected Set of 20 Double Stars 9 Kodiak Darling, Kristy Diaz, Arriz Lucas, Travis Santo, Douglas Walker Double Star Measurements at the Internationale Amateur Sternwarte (IAS) in Namibia in 2009 15 Rainer Anton Chico High School Students' Astrometric Observations of the Visual Double Star STF 1657 Jonelle Ahiligwo, Clara Bergamini, Kallan Berglund, Mohit Bhardwaj, Spud Chelson, 24 Amanda Costa, Ashley Epis, Azure Grant, Courtney Osteen, Skyla Reiner, Adam Rose, Emily Schmidt, Forest Sears, Maddie Sullivan-Hames, and Jolyon Johnson A New Companion for STF 2590, WDS 19523+1021 28 Micello Giuseppe Divinus Lux Observatory Bulletin: Report #24 32 Dave Arnold Astrometric Measurements of Seven Double Stars, September 2011 Report 40 Joseph M. Carro Separation and Position Angle Measurements of Double Star STFA 46 AB and Triple Star STF 1843 ABC 48 Chandra Alduenda, Alex Hendrix, Navarre Hernandez-Frey, Gabriela Key, Patrick King, Rebecca Chamberlain, Thomas Frey Comparison of Data on Iota Boötes Using Different Telescope Mounts in 2009 and 2010 by the St. Mary’s School Astronomy Club Holly Bensel, Ryan Gasik, Fred Muller, Anne Oursler, Will Oursler, Emii Pahl, Eric Pahl, 54 Nolan Peard, Dashton Peccia, Jacob Robino, Ross Robino, Monika Ruppe, Peter Schwartz, David Scimeca, Trevor Thorndike 351 New Common Proper-Motion Pairs from the Sloan Digital Sky Survey 58 Rafael Caballero Vol.
    [Show full text]