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San Jose Astronomical Association Membership Form P.O
SJAA EPHEMERIS SJAA Activities Calendar May General Meeting Jim Van Nuland Dr. Jeffrey Cuzzi May 26 at 8 p.m. @ Houge Park late April David Smith 20 Houge Park Astro Day. Sunset 7:47 p.m., 20% moon sets 0:20 a.m. Star party hours: 8:30 to 11:30 p.m. At our May 26 General Meeting the title of the talk will be: 21 Mirror-making workshop at Houge Park. 7:30 p.m. What Have We Learned from the Cassini/Huygens Mission to 28 General meeting at Houge Park. Karrie Gilbert will Saturn? – a presentation by Dr. Jeffrey Cuzzi of NASA Ames speak on Studies of Andromeda Galaxy Halo Stars. 8 Research Center. p.m. May Cassini is now well into its third year at Saturn. The Huygens 5 Mirror-making workshop at Houge Park. 7:30 p.m. entry probe landed on Titan in January 2005, but since then, 11 Astronomy Class at Houge Park. 7:30 p.m. many new discoveries have been made on Titan’s surface, and 11 Houge Park star party. Sunset 8:06 p.m., 27% moon elsewhere in the system, by the orbiter as it continues its four- rise 3:23 a.m. Star party hours: 9:00 to midnight. year tour. In addition, new understanding is emerging from 12 Dark sky weekend. Sunset 8:07 p.m., 17% moon rise analysis of the earliest obtained data. 3:50 a.m. In this talk, Dr. Jeffrey Cuzzi will review the key science highlights 17 Mirror-making workshop at Houge Park. -
7.5 X 11.5.Threelines.P65
Cambridge University Press 978-0-521-19267-5 - Observing and Cataloguing Nebulae and Star Clusters: From Herschel to Dreyer’s New General Catalogue Wolfgang Steinicke Index More information Name index The dates of birth and death, if available, for all 545 people (astronomers, telescope makers etc.) listed here are given. The data are mainly taken from the standard work Biographischer Index der Astronomie (Dick, Brüggenthies 2005). Some information has been added by the author (this especially concerns living twentieth-century astronomers). Members of the families of Dreyer, Lord Rosse and other astronomers (as mentioned in the text) are not listed. For obituaries see the references; compare also the compilations presented by Newcomb–Engelmann (Kempf 1911), Mädler (1873), Bode (1813) and Rudolf Wolf (1890). Markings: bold = portrait; underline = short biography. Abbe, Cleveland (1838–1916), 222–23, As-Sufi, Abd-al-Rahman (903–986), 164, 183, 229, 256, 271, 295, 338–42, 466 15–16, 167, 441–42, 446, 449–50, 455, 344, 346, 348, 360, 364, 367, 369, 393, Abell, George Ogden (1927–1983), 47, 475, 516 395, 395, 396–404, 406, 410, 415, 248 Austin, Edward P. (1843–1906), 6, 82, 423–24, 436, 441, 446, 448, 450, 455, Abbott, Francis Preserved (1799–1883), 335, 337, 446, 450 458–59, 461–63, 470, 477, 481, 483, 517–19 Auwers, Georg Friedrich Julius Arthur v. 505–11, 513–14, 517, 520, 526, 533, Abney, William (1843–1920), 360 (1838–1915), 7, 10, 12, 14–15, 26–27, 540–42, 548–61 Adams, John Couch (1819–1892), 122, 47, 50–51, 61, 65, 68–69, 88, 92–93, -
Interstellarum 52 • Juni/Juli 2007 1 Inhalt
Editorial fokussiert Liebe Leserinnen und Leser, gibt es tatsächlich Planeten um andere Sterne, die die Vorrausset- zungen für die Entwicklung von Leben erfüllen? Eine derartige Mel- dung machte Ende April die Runde, als die ESO die Entdeckung eines Planeten in der »bewohnbaren«, weil möglicherweise die Existenz fl üs- sigen Wassers erlaubenden Zone um den Stern Gliese 581 bekanntgab (Seite 18). Solche Berichte machen den Eindruck, die Entdeckung von Leben in anderen Sonnensystemen stehe unmittelbar bevor – doch Daniel Fischers Blick hinter die Kulissen zeigt, dass wir noch am Anfang der Suche nach Exoplaneten stehen (Seite 12). Wenn interstellarum Teleskope testet, dann richtig – mit mehrmo- natigem Praxistest und optischer Bank. Diesmal stehen drei apochro- Ronald Stoyan, Chefredakteur matische Refraktoren der neuen Generation auf dem Prüfstand, die die Entscheidung besonders schwer machen – und die Beurteilung zu einem Vergnügen für den Tester. In diesem Heft steht die visuelle Leis- tungsfähigkeit im Vordergrund (Seite 50), in der kommenden Ausgabe werden die fotografi schen Fähigkeiten nachgereicht. Übrigens: Falls Sie einen Fernrohr-Kauf planen, empfehle ich Ihnen unsere Neuer- scheinung »Fernrohrwahl«. Dort sind praktisch alle auf dem deutschen Markt erhältlichen Modelle tabellarisch aufgelistet. Neu im Verlagsprogramm ist ebenfalls eine neue Ausgabe der inter- stellarum Archiv-CD, diesmal mit PDF-Dokumenten der Heftnummern 32 bis 49 – bestellbar über unsere Internetseite www.interstellarum.de. Dort laden wir Sie auch zur Teilnahme an der bisher größten Leserum- frage unserer Geschichte ein, denn wir wollen mehr über Sie und Ihre astronomischen Vorlieben erfahren – natürlich anonym. Bitte helfen Sie uns, interstellarum noch mehr auf Ihre Bedürfnisse auszurichten. Ihr Titelbild: Wie ein Planet eines anderen Sterns aussieht ist reine Spekulation – doch die künstlerische Darstellung der ESO hilft der Vorstellungskraft auf die Sprünge. -
Snake River Skies the Newsletter of the Magic Valley Astronomical Society
Snake River Skies The Newsletter of the Magic Valley Astronomical Society www.mvastro.org Membership Meeting MVAS President’s Message June 2018 Saturday, June 9th 2018 7:00pm at the Toward the end of last month I gave two presentations to two very different groups. Herrett Center for Arts & Science College of Southern Idaho. One was at the Sawtooth Botanical Gardens in their central meeting room and covered the spring constellations plus some simple setups for astrophotography. Public Star Party Follows at the The other was for the Sun Valley Company and was a telescope viewing session Centennial Observatory given on the lawn near the outdoor pavilion. The composition of the two groups couldn’t be more different and yet their queries and interests were almost identical. Club Officers Both audiences were genuinely curious about the universe and their questions covered a wide range of topics. How old is the moon? What is a star made of? Tim Frazier, President How many exoplanets are there? And, of course, the big one: Is there life out [email protected] there? Robert Mayer, Vice President The SBG’s observing session was rained out but the skies did clear for the Sun [email protected] Valley presentation. As the SV guests viewed the moon and Jupiter, I answered their questions and pointed out how one of Jupiter’s moons was disappearing Gary Leavitt, Secretary behind the planet and how the mountains on our moon were casting shadows into [email protected] the craters. Regardless of their age, everyone was surprised at the details they 208-731-7476 could see and many expressed their amazement at what was “out there”. -
The Role of Environment in Fueling Seyfert AGN
The Role of Environment in Fueling Seyfert AGN Erin K. S. Hicks University of Alaska Anchorage Francisco Müller-Sánchez (CASA), Matt Malkan (UCLA), Po-Chieh Yu (UCLA), Richard Davies (MPE) * Support from NSF AAG under award AST-1008042. UAA Goal: Trace inflow mechanisms on scales of Physics & Astronomy 1kpc down to tens of parsecs. Potential Seyfert AGN fueling mechanisms: i. Major mergers ii. Minor mergers iii. Accretion of gas streamers vi. Secular evolution Erin K. S. Hicks IAU August 2015 UAA Goal: Trace inflow mechanisms on scales of Physics & Astronomy 1kpc down to tens of parsecs. Potential Seyfert AGN fueling mechanisms: i. Major mergers Several studies suggest not major mergers: ª Over 50% of z~2 AGN in undisturbed ii. Minor mergers host galaxies (Koceviski et al. 2012) ª AGN at z~2 not in galaxies with iii. Accretion of enhanced star formation (Rosario et gas streamers al. 2013) vi. Secular evolution Erin K. S. Hicks IAU August 2015 UAA Goal: Trace inflow mechanisms on scales of Physics & Astronomy 1kpc down to tens of parsecs. Potential Seyfert AGN fueling mechanisms: i. Major mergers ª Minor mergers may be associated with low and intermediate luminosity AGN ii. Minor mergers (Neistein & Netzer 2014) ª Number required to account for iii. Accretion of dust in early type galaxies is gas streamers 250 times greater than predicted (Simões Lopes et al 2007, Martini et al 2013) vi. Secular evolution Erin K. S. Hicks IAU August 2015 UAA Goal: Trace inflow mechanisms on scales of Physics & Astronomy 1kpc down to tens of parsecs. Potential Seyfert AGN fueling mechanisms: i. -
190 Index of Names
Index of names Ancora Leonis 389 NGC 3664, Arp 005 Andriscus Centauri 879 IC 3290 Anemodes Ceti 85 NGC 0864 Name CMG Identification Angelica Canum Venaticorum 659 NGC 5377 Accola Leonis 367 NGC 3489 Angulatus Ursae Majoris 247 NGC 2654 Acer Leonis 411 NGC 3832 Angulosus Virginis 450 NGC 4123, Mrk 1466 Acritobrachius Camelopardalis 833 IC 0356, Arp 213 Angusticlavia Ceti 102 NGC 1032 Actenista Apodis 891 IC 4633 Anomalus Piscis 804 NGC 7603, Arp 092, Mrk 0530 Actuosus Arietis 95 NGC 0972 Ansatus Antliae 303 NGC 3084 Aculeatus Canum Venaticorum 460 NGC 4183 Antarctica Mensae 865 IC 2051 Aculeus Piscium 9 NGC 0100 Antenna Australis Corvi 437 NGC 4039, Caldwell 61, Antennae, Arp 244 Acutifolium Canum Venaticorum 650 NGC 5297 Antenna Borealis Corvi 436 NGC 4038, Caldwell 60, Antennae, Arp 244 Adelus Ursae Majoris 668 NGC 5473 Anthemodes Cassiopeiae 34 NGC 0278 Adversus Comae Berenices 484 NGC 4298 Anticampe Centauri 550 NGC 4622 Aeluropus Lyncis 231 NGC 2445, Arp 143 Antirrhopus Virginis 532 NGC 4550 Aeola Canum Venaticorum 469 NGC 4220 Anulifera Carinae 226 NGC 2381 Aequanimus Draconis 705 NGC 5905 Anulus Grahamianus Volantis 955 ESO 034-IG011, AM0644-741, Graham's Ring Aequilibrata Eridani 122 NGC 1172 Aphenges Virginis 654 NGC 5334, IC 4338 Affinis Canum Venaticorum 449 NGC 4111 Apostrophus Fornac 159 NGC 1406 Agiton Aquarii 812 NGC 7721 Aquilops Gruis 911 IC 5267 Aglaea Comae Berenices 489 NGC 4314 Araneosus Camelopardalis 223 NGC 2336 Agrius Virginis 975 MCG -01-30-033, Arp 248, Wild's Triplet Aratrum Leonis 323 NGC 3239, Arp 263 Ahenea -
Making a Sky Atlas
Appendix A Making a Sky Atlas Although a number of very advanced sky atlases are now available in print, none is likely to be ideal for any given task. Published atlases will probably have too few or too many guide stars, too few or too many deep-sky objects plotted in them, wrong- size charts, etc. I found that with MegaStar I could design and make, specifically for my survey, a “just right” personalized atlas. My atlas consists of 108 charts, each about twenty square degrees in size, with guide stars down to magnitude 8.9. I used only the northernmost 78 charts, since I observed the sky only down to –35°. On the charts I plotted only the objects I wanted to observe. In addition I made enlargements of small, overcrowded areas (“quad charts”) as well as separate large-scale charts for the Virgo Galaxy Cluster, the latter with guide stars down to magnitude 11.4. I put the charts in plastic sheet protectors in a three-ring binder, taking them out and plac- ing them on my telescope mount’s clipboard as needed. To find an object I would use the 35 mm finder (except in the Virgo Cluster, where I used the 60 mm as the finder) to point the ensemble of telescopes at the indicated spot among the guide stars. If the object was not seen in the 35 mm, as it usually was not, I would then look in the larger telescopes. If the object was not immediately visible even in the primary telescope – a not uncommon occur- rence due to inexact initial pointing – I would then scan around for it. -
Ngc Catalogue Ngc Catalogue
NGC CATALOGUE NGC CATALOGUE 1 NGC CATALOGUE Object # Common Name Type Constellation Magnitude RA Dec NGC 1 - Galaxy Pegasus 12.9 00:07:16 27:42:32 NGC 2 - Galaxy Pegasus 14.2 00:07:17 27:40:43 NGC 3 - Galaxy Pisces 13.3 00:07:17 08:18:05 NGC 4 - Galaxy Pisces 15.8 00:07:24 08:22:26 NGC 5 - Galaxy Andromeda 13.3 00:07:49 35:21:46 NGC 6 NGC 20 Galaxy Andromeda 13.1 00:09:33 33:18:32 NGC 7 - Galaxy Sculptor 13.9 00:08:21 -29:54:59 NGC 8 - Double Star Pegasus - 00:08:45 23:50:19 NGC 9 - Galaxy Pegasus 13.5 00:08:54 23:49:04 NGC 10 - Galaxy Sculptor 12.5 00:08:34 -33:51:28 NGC 11 - Galaxy Andromeda 13.7 00:08:42 37:26:53 NGC 12 - Galaxy Pisces 13.1 00:08:45 04:36:44 NGC 13 - Galaxy Andromeda 13.2 00:08:48 33:25:59 NGC 14 - Galaxy Pegasus 12.1 00:08:46 15:48:57 NGC 15 - Galaxy Pegasus 13.8 00:09:02 21:37:30 NGC 16 - Galaxy Pegasus 12.0 00:09:04 27:43:48 NGC 17 NGC 34 Galaxy Cetus 14.4 00:11:07 -12:06:28 NGC 18 - Double Star Pegasus - 00:09:23 27:43:56 NGC 19 - Galaxy Andromeda 13.3 00:10:41 32:58:58 NGC 20 See NGC 6 Galaxy Andromeda 13.1 00:09:33 33:18:32 NGC 21 NGC 29 Galaxy Andromeda 12.7 00:10:47 33:21:07 NGC 22 - Galaxy Pegasus 13.6 00:09:48 27:49:58 NGC 23 - Galaxy Pegasus 12.0 00:09:53 25:55:26 NGC 24 - Galaxy Sculptor 11.6 00:09:56 -24:57:52 NGC 25 - Galaxy Phoenix 13.0 00:09:59 -57:01:13 NGC 26 - Galaxy Pegasus 12.9 00:10:26 25:49:56 NGC 27 - Galaxy Andromeda 13.5 00:10:33 28:59:49 NGC 28 - Galaxy Phoenix 13.8 00:10:25 -56:59:20 NGC 29 See NGC 21 Galaxy Andromeda 12.7 00:10:47 33:21:07 NGC 30 - Double Star Pegasus - 00:10:51 21:58:39 -
Arp Catalogue.Xlsx
ATLAS OF PECULIAR GALAXIES CATALOGUE 1 ATLAS OF PECULIAR GALAXIES CATALOGUE Object Name Mag RA Dec Constellation ARP 1 NGC 2857 12.2 09:24:37 49:21:00 Ursa Major ARP 2 13.2 16:16:18 47:02:00 Hercules ARP 3 13.4 22:36:34 ‐02:54:00 Aquarius ARP 4 13.7 01:48:25 ‐12:22:00 Cetus ARP 5 NGC 3664 12.8 11:24:24 03:19:00 Leo ARP 6 NGC 2537 12.3 08:13:14 45:59:00 Lynx ARP 7 14.5 08:50:17 ‐16:34:00 Hydra ARP 8 NGC 0497 13 01:22:23 ‐00:52:00 Cetus ARP 9 NGC 2523 11.9 08:14:59 73:34:00 Camelopardalis ARP 10 13.8 02:18:26 05:39:00 Cetus ARP 11 14.4 01:09:23 14:20:00 Pisces ARP 12 NGC 2608 12.2 08:35:17 28:28:00 Cancer ARP 13 NGC 7448 11.6 23:00:02 15:59:00 Pegasus ARP 14 NGC 7314 10.9 22:35:45 ‐26:03:00 Pisces Austrinus ARP 15 NGC 7393 12.6 22:51:39 ‐05:33:00 Aquarius ARP 16 M66 8.9 11:20:14 12:59:00 Leo ARP 17 14.7 07:44:32 73:49:00 Camelopardalis ARP 17 07:44:38 73:48:00 Camelopardalis ARP 18 NGC 4088 10.5 12:05:35 50:32:00 Ursa Major ARP 19 NGC 0145 13.2 00:31:45 ‐05:09:00 Cetus ARP 20 14.4 04:19:53 02:05:00 Taurus ARP 21 14.7 11:04:58 30:01:00 Leo Minor ARP 22 14.9 11:59:29 ‐19:19:00 Corvus ARP 22 NGC 4027 11.2 11:59:30 ‐19:15:00 Corvus ARP 23 NGC 4618 10.8 12:41:32 41:09:00 Canes Venatici ARP 24 NGC 3445 12.6 10:54:36 56:59:00 Ursa Major ARP 24 12.8 10:54:45 56:57:00 Ursa Major ARP 25 NGC 2276 11.4 07:27:13 85:45:00 Cepheus ARP 26 M101 7.9 14:03:12 54:21:00 Ursa Major ARP 27 NGC 3631 10.4 11:21:02 53:10:00 Ursa Major ARP 28 NGC 7678 11.8 23:28:27 22:25:00 Pegasus ARP 29 NGC 6946 8.8 20:34:52 60:09:00 Cygnus ARP 30 NGC 6365 12.2 17:22:42 62:10:00 -
Near-IR Photometry of Disk Galaxies: Search for Nuclear Isophotal Twist
A&A manuscript no. (will be inserted by hand later) ASTRONOMY AND Your thesaurus codes are: ASTROPHYSICS 04 (11.16.1; 11.19.2; 11.06.2; 11.19.6) 17.6.2021 Near-IR photometry of disk galaxies: search for nuclear isophotal twist and double bars Bruno Jungwiert1,2, Fran¸coise Combes1 and Dave J. Axon3 1 DEMIRM, Observatoire de Paris, 61 Avenue de l’Observatoire, 75 014 Paris, France 2 Astronomical Institute, Academy of Sciences of the Czech Republic, Boˇcn´ıII 1401, 141 31 Prague 4, Czech Republic 3 ESA secondment, Space Telescope Science Institute, Baltimore, MD 21218, USA Received 29 November 1996 / Accepted 21 January 1997 Abstract. We present a near-IR, mainly H band, pho- medium (ISM) into the nuclear region. Numerous obser- tometry of 72 nearby (d < 40 Mpc) disk galaxies. The vations complete the picture by showing that various kinds main goal of the survey was to search for isophotal twist of central activity, like Seyfert nuclei (e.g. Hummel et al. inside their nuclear regions. As the twist can be due in 1987), LINERs and starbursts (e.g. Devereux 1989, Tele- some cases to projection effects, rather than resulting from sco et al. 1993) are often correlated with the presence a dynamical phenomenon, we deproject – under the sim- of bars (note however counter-examples of many Seyferts plifying assumption of a 2D geometry – all galaxies whose (McLeod & Rieke 1995), as well as galaxies with strong disk position angle and inclination are known, the latter IR excess (Pompea & Rieke 1990), that do not show any not exceeding 75o. -
Atlante Grafico Delle Galassie
ASTRONOMIA Il mondo delle galassie, da Kant a skylive.it. LA RIVISTA DELL’UNIONE ASTROFILI ITALIANI Questo è un numero speciale. Viene qui presentato, in edizione ampliata, quan- [email protected] to fu pubblicato per opera degli Autori nove anni fa, ma in modo frammentario n. 1 gennaio - febbraio 2007 e comunque oggigiorno di assai difficile reperimento. Praticamente tutte le galassie fino alla 13ª magnitudine trovano posto in questo atlante di più di Proprietà ed editore Unione Astrofili Italiani 1400 oggetti. La lettura dell’Atlante delle Galassie deve essere fatto nella sua Direttore responsabile prospettiva storica. Nella lunga introduzione del Prof. Vincenzo Croce il testo Franco Foresta Martin Comitato di redazione e le fotografie rimandano a 200 anni di studio e di osservazione del mondo Consiglio Direttivo UAI delle galassie. In queste pagine si ripercorre il lungo e paziente cammino ini- Coordinatore Editoriale ziato con i modelli di Herschel fino ad arrivare a quelli di Shapley della Via Giorgio Bianciardi Lattea, con l’apertura al mondo multiforme delle altre galassie, iconografate Impaginazione e stampa dai disegni di Lassell fino ad arrivare alle fotografie ottenute dai colossi della Impaginazione Grafica SMAA srl - Stampa Tipolitografia Editoria DBS s.n.c., 32030 metà del ‘900, Mount Wilson e Palomar. Vecchie fotografie in bianco e nero Rasai di Seren del Grappa (BL) che permettono al lettore di ripercorrere l’alba della conoscenza di questo Servizio arretrati primo abbozzo di un Universo sempre più sconfinato e composito. Al mondo Una copia Euro 5.00 professionale si associò quanto prima il mondo amatoriale. Chi non è troppo Almanacco Euro 8.00 giovane ricorderà le immagini ottenute dal cielo sopra Bologna da Sassi, Vac- Versare l’importo come spiegato qui sotto specificando la causale. -
Dust Temperatures in the Infrared Space Observatory1atlas of Bright Spiral Galaxies
Dust Temperatures in the Infrared Space Observatory1Atlas of Bright Spiral Galaxies George J. Bendo,2;3;4 Robert D. Joseph,3 Martyn Wells,5 Pascal Gallais,6 Martin Haas,7 Ana M. Heras,8;9 Ulrich Klaas,7 Ren´eJ.Laureijs,8;9 Kieron Leech,9;10 Dietrich Lemke,7 Leo Metcalfe,8 Michael Rowan-Robinson,11 Bernhard Schulz,9;12 and Charles Telesco13 ABSTRACT We examine far-infrared and submillimeter spectral energy distributions for galaxies in the Infrared Space Observatory Atlas of Bright Spiral Galaxies. For the 71 galaxies where we had complete 60 - 180 µm data, 1 2 we fit blackbodies with λ− emissivities and average temperatures of 31 K or λ− emissivities and average temperatures of 22 K. Except for high temperatures determined in some early-type galaxies, the temperatures show no dependence on any galaxy characteristic. For the 60 - 850 µm range in eight galaxies, we fit blackbodies 1 2 β β with λ− , λ− ,andλ− (with β variable) emissivities to the data. The best results were with the λ− emissivities, where the temperatures were 30 K and the emissivity coefficient β ranged from 0.9 to 1.9. These results produced gas to dust ratios that∼ ranged from 150 to 580, which were consistent with the ratio for the Milky Way and which exhibited relatively little dispersion compared to fits with fixed emissivities. Subject headings: galaxies: ISM | galaxies: spiral | dust 1. Introduction 2Steward Observatory, 933 North Cherry Ave, Tucson, AZ 85721 USA; [email protected] The far-infrared emission from galaxies is emitted by 3University of Hawaii, Institute for Astronomy, 2680 Woodlawn interstellar dust heated by a variety of energy sources.