DOCSLIB.ORG

Copyrighted Material

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

bindex.qxd 6/5/07 7:50 AM Page 274 INDEX Page numbers in italics refer to illustrations. Abrams Planetarium, 121 Arcturus, 50, 51, 83–84, 94, 265 Beta Crucis, 265 A/B rings, of Saturn, 216 Aries the Ram, 98 Beta Cygni, 235–236 absolute magnitude, 267 Aristarchus, 189 Beta Leonis (Denebola), 94, 145, Achernar, 265 Aristoteles, 186–187 176 Acrux, 86 Aristotle, 249 Beta Lyrae, 155, 255 Albers, Steve, 242 Ashbrook, Joseph, 117 Beta Monocerotis, 235 Albireo, 231, 235–236, 237 Ashen Light, 205 Beta Persei, 152–153 Alcor, 232–233 association, of stars, 145 Beta Scorpii (Graffias), 95, 130 Alcyone, 141, 141–142 asterisms, 53, 267 Beta Tauri, 93 Aldebaran, 53, 83, 92–93, 136–138, asteroids, 229–230, 267 Betelgeuse, 52, 53, 83, 87, 89, 246, 138, 265 Asterope, 141, 141–142 265 Algieba, 94 astrometric binaries, 232 Big Dipper, 47–51, 48, 83–84, Algol, 97, 151–156 Astronomical Calendar, 119 232–233 Alioth, 49 Atlas, 141, 141–142 binary stars, 97, 232, 267, 268. See Alkaid, 49, 51 atmospheric extinction, 106, 267 also double stars Alnilam (Epsilon Orionis), 148–149 Auriga the Charioteer, 29, 52–53, bipolar sunspot groups, 194 Alnitak (Zeta Orionis), 148–149 82, 93, 248 black drop effect, 202 Alpha Capricorni, 233 aurora, 32–36, 35, 267 Black-Eye Galaxy (M64), 178 Alpha Centauri, 79, 86, 265 aurora australis, 32 black holes, 173, 267 Alpha Ceti, 154 aurora borealis, 32 Blaze Star, 155 Alpha Crucis, 265 Austin, Alfred, 141 Blinking Planetary, 257 Alpha Librae, 233 autumn blue giants, 82, 267 Alpha Persei (Mirfak) Cluster, 97, galaxies, 258–260 bolide, 24 145 globular clusters, 254 Bonestell, Chesley, 126 Alphecca, 96 magnitude of stars, 85–86 Bootes the Herdsman, 83–84, 94 Altair, 54–56, 57, 85, 265 open clusters in, 247–248 Bortle, John, 73 altazimuth system, 267 prominent constellations, 96–98 Brocchi’s Cluster (Collinder 399), altitude, 267 averted vision, 267 57, 249 American Association of Variable azimuth, 267 Brown, Sam, 167 Star Observers (AAVSO), 152 Burnham, Robert, Jr., 167, 168, 234 American Meteor Society, 30 Bailly, 189 Butterfly Cluster (M6), 166 Andromeda Galaxy (M31), 159, Baily’s Beads, 20, 108 Byrgius/Byrgius A, 189 170–175, 171, 258, 258–260 Becrux, 86 “nucleus of,” 173–175 Beehive cluster (M44), 131, calendars Andromeda the Chained Maiden,COPYRIGHTED143–144, 144, 244, 248 MATERIALPleiades and, 139 97–98 Bellatrix, 89 Sirius and, 81 annular solar eclipses, 197–198 Belt of Orion, 52, 54, 83, 86, 87, 89, Callisto, 209–210 annulus, 197 90, 146–151 canali, 221–222 Antares, 85, 95, 123, 233, 253, 265 belts (planetary), 208–209, 211, Cancer the Crab, 94, 144 Antares B, 234 211, 217 Canes Venatici (Hunting Dogs), Apennines mountain range, 187 Berenice’s Hair, 94, 145, 176, 177, 253 aphelion, 63, 68 178, 248 Canis Major, the Big Dog, 52, 93 apparent magnitude, 267 Beta Andromedae, 259 Canis Minor, the Little Dog, 52, 82, Aquarius the Water Bearer, 96–97 Beta Centauri, 265 93 Aquila the Eagle, 56, 57, 85, 95, 158 Beta Ceti, 154 Canopus, 86, 265 274 | Index bindex.qxd 6/5/07 7:50 AM Page 275 canyon system, of Mars, 226 companion stars, 232 Deneb Kaitos, 260 Capella, 53, 82, 93, 265 comparison stars, 152 Denebola, 94, 145, 176 Capricornus the Sea Goat, 96–97 condensation, 135 diamond ring, 18, 21, 108 Carpathian Mountains, 188 conjunctions, 267 dichotomy, 64 Cassini’s Division, 216 conclaves, 131–132 Dickinson, Emily, 198 Cassini (spacecraft), 219 of Moon, 120–126 diffuse nebula, 242–243, 268 Cassiopeia the Queen, 97, 246 planetary, 127–133 Diphda, 97, 260 Castor, 52, 83, 93 trios, 131–133 diurnal motion, 268 Cat’s Eyes, 96 triple conjunctions, 131–133 “dog days,” 81 Caucasus Mountains, 187 of Venus, 202–207, 203 Dog Star, 234 Celaeno, 141, 141–142 constellations, 267. See also individ- domes, 183 celestial sphere, 267 ual names of constellations Double Cluster of Perseus, 97 Centaurus A, 260–261 Copernicus, Nicolaus, 62, 84 double clusters, 97, 244–246 central condensation, 135 Copernicus (lunar crater), 186, 187, double stars, 138, 230–236, 231, Cepheid, 154, 267 188, 189 233, 268. See also binary stars Cephus the King, 97 corona Draco the Dragon, 50, 233–234 Ceres, 229 auroral, 33 Druids (calendar), 139 Cetus the Whale, 97, 153–154, 260 of Sun, 20, 21 Dubhe, 49, 51 Chi Cygni, 56 Corona Borealis the Northern Dumbbell Nebula (M27), 57, 95, Chi Persei, 245–246 Crown, 96, 155 255–257 chromosphere, 20 coronal hole, 35 Dunham, David, 125 circumpolar, 267 coronal mass ejections (CMEs), 35 duplicity, 82 Clavius, 188 Corvus the Crow, 94 dust tail, 71, 135 clusters, 270 Crab Nebula (M1), 93, 157, 161 Coat Hanger, 57, 249 craters, lunar, 182–183, 185–189, Eagle Nebula (M16), 168, 170 color 186, 188 Earth of comets, 134–135 crescent, defined, 267 earthshine, 115–116 of double stars, 235–236 crescent Moon, 114–120, 185–187 magnetic fields, 35 of galaxies, 174 C ring (Crepe ring), of Saturn, 217 Mars compared to, 221–222 of Great Orion Nebula, 241–242 culmination, 79, 267 orbit of, 225 of lunar eclipse, 104–107 curtains (auroral), 33 passage through Saturn’s ring of planets, 211–212, 222–224, 228 Cygnus Loop, 161–162 plane, 217–218 of stars, 79, 236–237 Cygnus Star Cloud, 42 precession of, 50 See also individual names of sights Cygnus the Swan, 56, 57, 85, 95, 164 umbral shadow of, 102 Coma Berenices (Berenice’s Hair), double stars of, 235–236 See also eclipse; Moon; Sun; indi- 94, 145, 176, 177, 178, 248 novae, 158 vidual names of planets Coma Star Cluster, 94, 145 open clusters, 249 earthgrazers, 31 Comet Bennett, 72 eclipse, 268 Comet Hale-Bopp, 75–76, 134, 135, Danjon, Andre, 119 annular, 197–198 136 Danjon Scale, 106–107 hybrid, 197–198 Comet Halley, 27, 73 dark adaptation, 16, 268 of Jovian moons, 209 Comet Hyakutake, 48, 70, 73–75, dark nebula, 148–149, 268 lunar, 69, 101–107, 120, 264 74, 135 Da Vinci, Leonardo, 115 solar, 18, 18–22, 69, 108–110, 109, Comet IRAS-Araki-Alcock (IAA), 73 declination, 268 120, 195–198, 196, 262 Comet of the Century (Schaaf), 71 deep-sky object, 56–57, 268 eclipse glasses, 192 comets, 69–76, 134–136, 267 degree of condensation (DC), 135 Eclipse! (Harrington), 107 coma, 134–135 Delphinus the Dolphin, 56, 95 eclipsing binary stars, 97, 153, 268 fear of, 69–71 Delta Aquarids meteor shower, 263 ecliptic path, 84, 268 observation of, 76 Delta Cephei, 154 Electra, 141, 141–142 parts of, 71 Delta Ceti, 260 electrophonic fireballs, 30 Comet Swift-Tuttle, 27 Delta Scorpii (Dschubba), 95 elongation, 61–64, 119 Comet West, 72–73 Delta Tauri, 138 emersions, 124–125 common motion pair, 232 Deneb, 54–56, 85, 235–236, 265 emission nebula, 242–243 Index | 275 bindex.qxd 6/5/07 7:50 AM Page 276 Encke’s Division, 217 globular clusters, 249–254, 250, 268 International Occultation Timing envelopes, 136 Golden Harp Cluster, 248 Association (IOTA), 124–125 Epsilon Cephei, 154 Goodricke, John, 153 International Space Station (ISS), Epsilon Geminorum, 130 grazing occultation, 124–125 38–39 Epsilon Lyrae (“Double Double”), Great Andromeda Galaxy. See Io, 209–210 56, 233, 235 Andromeda Galaxy (M31) ion tail, 135 Epsilon Virginis (Vindemiatrix), greatest elongation, 61–64, 268 Iota Orionis, 150, 240 175 Great Orion Nebula (M42), 87, iridium satellite flare, 37, 40 equatorial system, 268 147, 149–150, 169, 236–243, Eta Aquaird meteor shower, 27, 263 238. See also Orion group of jets, 135–136 Eta Aquilae, 56 constellations Jupiter, 28–29, 95 Eta Carinae Nebula, 240 Great Red Spot (GRS), 211–212 brightness of, 65–68 Eta Orionis, 151 Great Rift, 42–43 conjunctions of, 127–129, 128, Europa, 209–210 Great Square of Pegasus, 97 132, 133 eye safety, 108, 190–194, 195 Great Red Spot (GRS), features, halos, 136 211, 211–212 faculae, 192–194 Harrington, Philip S., 107 moons of, 207–212, 210, 211, 219 falling stars. See meteor showers Hartmann, William K., 175 occultation of, 126, 130 faults, 183 Heavenly G, 53 telescopic views, 208–209 festoons, 211–212 heliacal rising, 81 Jura Mountains, 188 Field Book of the Skies (Olcott), 152 Helix Nebula, 255–257 52 Cygni, 161 Hellas, 223 Kappa Tauri, 138 fireball meteors, 25–26, 28–32, 268 Hercules the Strongman, 96, Kaus Australis (Epsilon Sagittari), First Quarter Moon, 187–188 251–252 165–166 Fisher Scale, 107 Keystone, 252 Kaus Borealis, 166 Fish’s Mouth, 240 M13, 167, 251–252 Kemble, Lucian J., 248 Fomalhaut, 85–86, 97, 265 Herodotus, 189 Kemble’s Cascade, 248 foreshortening, 183–184 Herschel, John, 168, 240 Kepler, 189 46 Orionis, 149–150 Herschel, William, 168 Keystone, 96 42 Orionis, 149–150 hoods, 134, 136 Kokab, 50 full-cutoff fixture, 268 horizon, 268 Kuiper Belt Objects, 228–229 Full Moon, 111–113, 112, 113, 189 Horsehead Nebula, 148–149 Kuma, 233–234 Horseshoe Nebula (M17), 168 galactic clusters, 244 Houston, Walter Scott, 152 Lagoon Nebula (M8), 169, 170, galaxies, 258–261 h Persei, 245–246 242–243 of autumn, 258–260 Huygenian Region, 240 Lambda Sagittarii, 166–168 Milky Way, 40–44, 41 Huygens, Christiaan, 215, 223, Lambda Scorpii, 95–96, 166 of spring, 260–261 239–240 Langrenus, 186, 188 structure types, 259 Huygens (spacecraft), 219 Leo galaxies, 261 Galilean satellites, 209, 209–210 Hyades, 53, 83, 92–93, 136–138, Leonid meteor shower, 23, 27–28, Galileo, 214 137, 142 29, 263 Gamma Coronae Australis, 233 hybrid solar eclipses, 197–198 Leo the Lion, 94, 133, 145 Gamma Lyrae, 255 Hydra the Sea Serpent, 94, 248 Lepus the Hare, 93, 253 Gamma Sagittarii, 166 hydrogen-alpha filters, 192 Lesath (Upsilon Scorpii), 166 Gamma Virginis (Porrima), 233, 234 Ley, Willy, 172 Ganymede, 209–210, 219 immersions, 124–125 Libra the Scales, 94 garlands, 211–212 inferior conjunction, 268 libration, 184–185 gas
Recommended publications
  • Astronomie in Theorie Und Praxis 8. Auflage in Zwei Bänden Erik Wischnewski

    Astronomie in Theorie Und Praxis 8. Auflage in Zwei Bänden Erik Wischnewski

    Astronomie in Theorie und Praxis 8. Auflage in zwei Bänden Erik Wischnewski Inhaltsverzeichnis 1 Beobachtungen mit bloßem Auge 37 Motivation 37 Hilfsmittel 38 Drehbare Sternkarte Bücher und Atlanten Kataloge Planetariumssoftware Elektronischer Almanach Sternkarten 39 2 Atmosphäre der Erde 49 Aufbau 49 Atmosphärische Fenster 51 Warum der Himmel blau ist? 52 Extinktion 52 Extinktionsgleichung Photometrie Refraktion 55 Szintillationsrauschen 56 Angaben zur Beobachtung 57 Durchsicht Himmelshelligkeit Luftunruhe Beispiel einer Notiz Taupunkt 59 Solar-terrestrische Beziehungen 60 Klassifizierung der Flares Korrelation zur Fleckenrelativzahl Luftleuchten 62 Polarlichter 63 Nachtleuchtende Wolken 64 Haloerscheinungen 67 Formen Häufigkeit Beobachtung Photographie Grüner Strahl 69 Zodiakallicht 71 Dämmerung 72 Definition Purpurlicht Gegendämmerung Venusgürtel Erdschattenbogen 3 Optische Teleskope 75 Fernrohrtypen 76 Refraktoren Reflektoren Fokus Optische Fehler 82 Farbfehler Kugelgestaltsfehler Bildfeldwölbung Koma Astigmatismus Verzeichnung Bildverzerrungen Helligkeitsinhomogenität Objektive 86 Linsenobjektive Spiegelobjektive Vergütung Optische Qualitätsprüfung RC-Wert RGB-Chromasietest Okulare 97 Zusatzoptiken 100 Barlow-Linse Shapley-Linse Flattener Spezialokulare Spektroskopie Herschel-Prisma Fabry-Pérot-Interferometer Vergrößerung 103 Welche Vergrößerung ist die Beste? Blickfeld 105 Lichtstärke 106 Kontrast Dämmerungszahl Auflösungsvermögen 108 Strehl-Zahl Luftunruhe (Seeing) 112 Tubusseeing Kuppelseeing Gebäudeseeing Montierungen 113 Nachführfehler
  • Thanet Astronomy Group Astronomy for Everyone in Plain English

    Thanet Astronomy Group Astronomy for Everyone in Plain English

    Thanet Astronomy Group Astronomy for Everyone in Plain English What to see December 29th Constellation (Orion) Stars (Betelguese, Bellatrix, Alnitak, Alnilam, Mintaka, Rigel, Saiph,) Asterism (The Winter Triangle) Stars (Betelguese, Sirius, Procyon) November to March the constellation Orion the Hunter is at its best. There are some 20 prominent stars in this constellation. The brightest and more easily observed stars are the 8 in the main body. The other stars form Orion's right arm with club, and a slain animal in his left hand. These stars are dimmer and difficult to see due to light pollution. At 8:00pm Looking South East at 119° up to 30° you see the star Betelguese, the top left corner of Orion, a red super giant, more than 1½ billion kms in diameter. Look at 127° up to 33° you see the star Bellatrix, the top right corner of Orion, at 8½ million kms in diameter. Look at 128° down to 24° you see Alnitak, the first of three stars side by side, forming Orion's belt. Alnitak, Alnilam (at 128° 25°) and Mintaka (at 129° 26°). Probably one of the more easily recognised groups of stars in this area of sky. Look at 137° down to 21° you see the star Rigel, the bottom right corner of Orion. A blue/white super giant, 108 million kms in diameter. Look at 130° down to 16° you see the star Saiph the bottom left corner of Orion, nearly 31 million kms in diameter. Orion Stars Orion the Hunter In August I wrote about The Summer Triangle.
  • Durham E-Theses

    Durham E-Theses

    Durham E-Theses First visibility of the lunar crescent and other problems in historical astronomy. Fatoohi, Louay J. How to cite: Fatoohi, Louay J. (1998) First visibility of the lunar crescent and other problems in historical astronomy., Durham theses, Durham University. Available at Durham E-Theses Online: http://etheses.dur.ac.uk/996/ Use policy The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that: • a full bibliographic reference is made to the original source • a link is made to the metadata record in Durham E-Theses • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders. Please consult the full Durham E-Theses policy for further details. Academic Support Oce, Durham University, University Oce, Old Elvet, Durham DH1 3HP e-mail: [email protected] Tel: +44 0191 334 6107 http://etheses.dur.ac.uk me91 In the name of Allah, the Gracious, the Merciful >° 9 43'' 0' eji e' e e> igo4 U61 J CO J: lic 6..ý v Lo ý , ý.,, "ý J ýs ýºý. ur ý,r11 Lýi is' ý9r ZU LZJE rju No disaster can befall on the earth or in your souls but it is in a book before We bring it into being; that is easy for Allah. In order that you may not grieve for what has escaped you, nor be exultant at what He has given you; and Allah does not love any prideful boaster.
  • Requirements of Timely Performance in Time and Voyage Charterparties

    Requirements of Timely Performance in Time and Voyage Charterparties

    Graduate School REQUIREMENTS OF TIMELY PERFORMANCE IN TIME AND VOYAGE CHARTERPARTIES - AN EXPLORATION OF THEIR IDENTITY, SCOPE AND LIMITATIONS UNDER ENGLISH LAW Thesis submitted for the degree of Doctor of Philosophy at the University of Leicester by Tamaraudoubra Tom Egbe School of Law University of Leicester 2019 Abstract REQUIREMENTS OF TIMELY PERFORMANCE IN TIME AND VOYAGE CHARTERPARTIES - AN EXPLORATION OF THEIR IDENTITY, SCOPE AND LIMITATIONS UNDER ENGLISH LAW By Tamaraudoubra Tom Egbe The importance of time in the performance of contractual obligations under sea carriage of goods arrangements are until now little explored. For the avoidance of breach, certain obligations and responsibilities of the parties to the contract need to be performed promptly. Ocean transport is an expensive venture and a shipowner could suffer considerable financial losses if an unnecessary but serious delay interrupt the vessel’s earning power in the course of the charterer’s performance of his contractual obligation. On the other hand, a charterer could also incur a substantial loss if arrangements for the shipment and receipt of cargo fail to go according to plan as a result of the shipowner’s failure to perform his charterparty obligation timely and with reasonable diligence. With these considerations in mind, this thesis critically explores the concept of timely performance in the discharge of the contractual obligations of parties to a contract of carriage. While the thesis is not an expository of the occurrence of time in all the obligations of parties to the carriage contract, it focusses particularly on the identity, scope, and limitations of timeliness in the context of timely payment of hire, laytime and reasonable despatch.
  • C. Mintaka, Alnitak, Alnilam

    C. Mintaka, Alnitak, Alnilam

    Post-18.1: This graph shows the functional form of the dependence of the parallax angle on the distance an object is from Earth. If the minimum parallax angle we could measure were 0.5 arcsec, what is the maximum distance of a star that we could measure? a. ~ 1.00 arcsec b. ~ 2.2 pc c. ~ 10 pc ©2014 W. W. Norton & Company, Inc. 8 Post-18.1: This graph shows the functional form of the dependence of the parallax angle on the distance an object is from Earth. If the minimum parallax angle we could measure were 0.5 arcsec, what is the maximum distance of a star that we could measure? a. ~ 1.00 arcsec b. ~ 2.2 pc c. ~ 10 pc ©2014 W. W. Norton & Company, Inc. 9 Post-18.2: The Moon never stops in its orbit; however, it is possible to get an exact measurement of its parallax and thus its distance at any given moment. How would we get the parallax shift of the Moon? a. Take simultaneous measurements from two locations. b. Take two measurements at different times from one location. c. Take two measurements from the same location at the same phase of the Moon. ©2014 W. W. Norton & Company, Inc. 10 Post-18.2: The Moon never stops in its orbit; however, it is possible to get an exact measurement of its parallax and thus its distance at any given moment. How would we get the parallax shift of the Moon? a. Take simultaneous measurements from two locations. b. Take two measurements at different times from one location.
  • A Method for Identifying the Pleiades Star Cluster in a Khipu From

    A Method for Identifying the Pleiades Star Cluster in a Khipu From

    Saez-Rodríguez. A. (2012). An Ethnomathematics Exercise for Analyzing a Khipu Sample from Pachacamac (Perú). Revista Latinoamericana de Etnomatemática. 5(1). 62-88 Artículo recibido el 1 de diciembre de 2011; Aceptado para publicación el 30 de enero de 2012 An Ethnomathematics Exercise for Analyzing a Khipu Sample from Pachacamac (Perú) Ejercicio de Etnomatemática para el análisis de una muestra de quipu de Pachacamac (Perú) Alberto Saez-Rodríguez1 Abstract A khipu sample studied by Gary Urton embodies an unusual division into quarters. Urton‟s research findings allow us to visualize the information in the pairing quadrants, which are determined by the distribution of S- and Z-knots, to provide overall information that is helpful for identifying the celestial coordinates of the brightest stars in the Pleiades cluster. In the present study, the linear regression attempts to model the relationship between two variables (which are determined by the distribution of the S- and Z-knots). The scatter plot illustrates the results of our simple linear regression: suggesting a map of the Pleiades represented by seven points on the Cartesian coordinate plane. Keywords: Inca khipu, Linear regression analysis, Celestial coordinate system, Pleiades. Resumen Una muestra de quipu estudiada por Gary Urton comporta una división por cuadrantes poco común. Utilizando dicho hallazgo de Urton, podemos visualizar la información contenida en los pares de cuadrantes, la cual está determinada por una distribución de nudos con orientaciones opuestas de „S‟ y de „Z‟, brindándonos, así, toda la información necesaria para identificar las coordenadas celestes de las estrellas más brillantes del cúmulo de las Pléyades. En el presente estudio se usa el análisis de la Regresión Lineal con el fin de construir un modelo que permita predecir el comportamiento de la variable dependiente y (valores de los nudos con orientación de „Z‟) en función de la variable independiente x (valores de los nudos con orientación de „S‟).
  • Extraterrestrial Places in the Cthulhu Mythos

    Extraterrestrial Places in the Cthulhu Mythos

    Extraterrestrial places in the Cthulhu Mythos 1.1 Abbith A planet that revolves around seven stars beyond Xoth. It is inhabited by metallic brains, wise with the ultimate se- crets of the universe. According to Friedrich von Junzt’s Unaussprechlichen Kulten, Nyarlathotep dwells or is im- prisoned on this world (though other legends differ in this regard). 1.2 Aldebaran Aldebaran is the star of the Great Old One Hastur. 1.3 Algol Double star mentioned by H.P. Lovecraft as sidereal The double star Algol. This infrared imagery comes from the place of a demonic shining entity made of light.[1] The CHARA array. same star is also described in other Mythos stories as a planetary system host (See Ymar). The following fictional celestial bodies figure promi- nently in the Cthulhu Mythos stories of H. P. Lovecraft and other writers. Many of these astronomical bodies 1.4 Arcturus have parallels in the real universe, but are often renamed in the mythos and given fictitious characteristics. In ad- Arcturus is the star from which came Zhar and his “twin” dition to the celestial places created by Lovecraft, the Lloigor. Also Nyogtha is related to this star. mythos draws from a number of other sources, includ- ing the works of August Derleth, Ramsey Campbell, Lin Carter, Brian Lumley, and Clark Ashton Smith. 2 B Overview: 2.1 Bel-Yarnak • Name. The name of the celestial body appears first. See Yarnak. • Description. A brief description follows. • References. Lastly, the stories in which the celes- 3 C tial body makes a significant appearance or other- wise receives important mention appear below the description.
  • Winter Observing Notes

    Winter Observing Notes

    Wynyard Planetarium & Observatory Winter Observing Notes Wynyard Planetarium & Observatory PUBLIC OBSERVING – Winter Tour of the Sky with the Naked Eye NGC 457 CASSIOPEIA eta Cas Look for Notice how the constellations 5 the ‘W’ swing around Polaris during shape the night Is Dubhe yellowish compared 2 Polaris to Merak? Dubhe 3 Merak URSA MINOR Kochab 1 Is Kochab orange Pherkad compared to Polaris? THE PLOUGH 4 Mizar Alcor Figure 1: Sketch of the northern sky in winter. North 1. On leaving the planetarium, turn around and look northwards over the roof of the building. To your right is a group of stars like the outline of a saucepan standing up on it’s handle. This is the Plough (also called the Big Dipper) and is part of the constellation Ursa Major, the Great Bear. The top two stars are called the Pointers. Check with binoculars. Not all stars are white. The colour shows that Dubhe is cooler than Merak in the same way that red-hot is cooler than white-hot. 2. Use the Pointers to guide you to the left, to the next bright star. This is Polaris, the Pole (or North) Star. Note that it is not the brightest star in the sky, a common misconception. Below and to the right are two prominent but fainter stars. These are Kochab and Pherkad, the Guardians of the Pole. Look carefully and you will notice that Kochab is slightly orange when compared to Polaris. Check with binoculars. © Rob Peeling, CaDAS, 2007 version 2.0 Wynyard Planetarium & Observatory PUBLIC OBSERVING – Winter Polaris, Kochab and Pherkad mark the constellation Ursa Minor, the Little Bear.
  • Educator's Guide: Orion

    Educator's Guide: Orion

    Legends of the Night Sky Orion Educator’s Guide Grades K - 8 Written By: Dr. Phil Wymer, Ph.D. & Art Klinger Legends of the Night Sky: Orion Educator’s Guide Table of Contents Introduction………………………………………………………………....3 Constellations; General Overview……………………………………..4 Orion…………………………………………………………………………..22 Scorpius……………………………………………………………………….36 Canis Major…………………………………………………………………..45 Canis Minor…………………………………………………………………..52 Lesson Plans………………………………………………………………….56 Coloring Book…………………………………………………………………….….57 Hand Angles……………………………………………………………………….…64 Constellation Research..…………………………………………………….……71 When and Where to View Orion…………………………………….……..…77 Angles For Locating Orion..…………………………………………...……….78 Overhead Projector Punch Out of Orion……………………………………82 Where on Earth is: Thrace, Lemnos, and Crete?.............................83 Appendix………………………………………………………………………86 Copyright©2003, Audio Visual Imagineering, Inc. 2 Legends of the Night Sky: Orion Educator’s Guide Introduction It is our belief that “Legends of the Night sky: Orion” is the best multi-grade (K – 8), multi-disciplinary education package on the market today. It consists of a humorous 24-minute show and educator’s package. The Orion Educator’s Guide is designed for Planetarians, Teachers, and parents. The information is researched, organized, and laid out so that the educator need not spend hours coming up with lesson plans or labs. This has already been accomplished by certified educators. The guide is written to alleviate the fear of space and the night sky (that many elementary and middle school teachers have) when it comes to that section of the science lesson plan. It is an excellent tool that allows the parents to be a part of the learning experience. The guide is devised in such a way that there are plenty of visuals to assist the educator and student in finding the Winter constellations.
  • Sky Notes by Neil Bone 2005 August & September

    Sky Notes by Neil Bone 2005 August & September

    Sky notes by Neil Bone 2005 August & September below Castor and Pollux. Mercury is soon ing June and July, it is still quite possible that Sun and Moon lost from view again, arriving at superior con- noctilucent clouds (NLC) could be seen into junction beyond the Sun on September 18. early August, particularly by observers at The Sun continues its southerly progress along Venus continues its rather unfavourable more northerly locations. Quite how late into the ecliptic, reaching the autumnal equinox showing as an ‘Evening Star’. Although it August NLC can be seen remains to be deter- position at 22h 23m Universal Time (UT = pulls out to over 40° elongation east of the mined: there have been suggestions that the GMT; BST minus 1 hour) on September 22. Sun during September, Venus is also heading visibility period has become longer in recent At that precise time, the centre of the solar southwards, and as a result its setting-time years. Observational reports will be welcomed disk is positioned at the intersection between after the Sun remains much the same − barely by the Aurora Section. the celestial equator and the ecliptic, the latter an hour − during this interval. Although bright While declining sunspot activity makes great circle on the sky being inclined by 23.5° at magnitude −4, Venus will be quite tricky major aurorae extending to lower latitudes to the former. Calendrical autumn begins at the to catch in the early twilight: viewing cir- less likely, the appearance of coronal holes equinox, but amateur astronomers might more cumstances don’t really improve until the in the latter parts of the cycle does bring the readily follow meteorological timing, wherein closing weeks of 2005.
  • A Basic Requirement for Studying the Heavens Is Determining Where In

    A Basic Requirement for Studying the Heavens Is Determining Where In

    Abasic requirement for studying the heavens is determining where in the sky things are. To specify sky positions, astronomers have developed several coordinate systems. Each uses a coordinate grid projected on to the celestial sphere, in analogy to the geographic coordinate system used on the surface of the Earth. The coordinate systems differ only in their choice of the fundamental plane, which divides the sky into two equal hemispheres along a great circle (the fundamental plane of the geographic system is the Earth's equator) . Each coordinate system is named for its choice of fundamental plane. The equatorial coordinate system is probably the most widely used celestial coordinate system. It is also the one most closely related to the geographic coordinate system, because they use the same fun­ damental plane and the same poles. The projection of the Earth's equator onto the celestial sphere is called the celestial equator. Similarly, projecting the geographic poles on to the celest ial sphere defines the north and south celestial poles. However, there is an important difference between the equatorial and geographic coordinate systems: the geographic system is fixed to the Earth; it rotates as the Earth does . The equatorial system is fixed to the stars, so it appears to rotate across the sky with the stars, but of course it's really the Earth rotating under the fixed sky. The latitudinal (latitude-like) angle of the equatorial system is called declination (Dec for short) . It measures the angle of an object above or below the celestial equator. The longitud inal angle is called the right ascension (RA for short).
  • Capturing the Starlight

    Capturing the Starlight

    Capturing the starlight Welcome Celestial sights for 2016 Welcome to the 2nd edition of the IFAS calendar, highlighting many items of interest during 2016 for the keen sky watcher. Eclipses Occultations Our first calendar was a great success and let IFAS buy and A total solar eclipse on March 9th tracks across Sumatra, A daylight occultation of Venus occurs on April 6th, while the distribute 1,500 eclipse shades free in time for the March 20th Borneo, Sulawesi, and a narrow span of the Pacific Ocean. East planet Jupiter lies a scant 4° from the Sun when occulted on solar eclipse. Due to various issues we have been unable to Asia, Australia, and Pacific regions, see a partial eclipse. September 30th. This is a very risky event to observe due to print up the calendar in time for distribution before the start of Jupiter’s nearness to the Sun. Neptune is occulted 3 times in The penumbral lunar eclipse on March 23rd is visible from 2016. As a result we have made the calendar freely available 2016 from the UK/Ireland — compute local circumstances via the Americas, Asia, and Australia. This eclipse has a maximum for people to download. Until the 2017 calendar, we wish you eco.mtk.nao.ac.jp/cgi-bin/koyomi/occulx_p_en.cgi the astronomer’s adieu; Clear skies! magnitude of 77%. Nothing will be seen of the penumbral lunar eclipse of August 18th as the Moon's disk barely brushes the Asteroid occultations are only given for stars brighter than Contact us, link up with the Irish astronomy community, or outer edge of the northern part of the Earth's penumbral shadow.