SOLAR ECLIPSE NEWSLETTER SOLAR ECLIPSE March 2002 NEWSLETTER
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SOLAR ECLIPSE NEWSLETTER SOLAR ECLIPSE March 2004 NEWSLETTER
Volume 9, Issue 3 SOLAR ECLIPSE NEWSLETTER SOLAR ECLIPSE March 2004 NEWSLETTER The sole Newsletter dedicated to Solar Eclipses INDEX 1 Picture Josch Hambsch dscn1394_crop_ps_red2 Dear All, 2 SECalendar March 8 SECalendar for March - typos Another Solar Eclipse Newsletter. It’ brings us closer to the in- 8 SECalendar for March - Data ternational Solar Eclipse Conference. The program is quite fixed 9 SEC2004 WebPages update and the registrations are coming in quickly. Many magazines 10 SENL Index February will publish and announce the conference shortly and we hope 10 Eclipse sightings 10 SENL for all of 3003 now online of course to have a sold out theatre at the Open University of 11 16 - 9 wide screen video problem Milton Keynes. Unfortunately, Jean Meeus had to cancel. He 11 Cloud cover maps suffers lately with some health problems and prefers to attend- 12 Old eclipse legends (?) ing the conference. 13 Free! Copies of NASA's 2003 eclipse bulletin 13 Delta T But even more: The Transit of Venus is due soon. The amount 14 BAA Journal web pages of messages, on the SEML and on other mailing lists, show. 14 Eclipse music Many trips are booked and of course we all hope for the best 14 Max number of Consecutive non-central annular eclipses clear skies. This event does not happen that often and we do 16 24 years ago.... not want miss it. 17 Lunar Eclipse papers 17 Saros 0 and EMAPWIN And what about the partial solar eclipse of April. A few SEML 18 Urgent - Klipsi needs photos of Klipsi subscribers will observe from the southern part of Africa and we 19 For eclipse chasers .. -
SENL) Tended SEC2000 in Antwerp Will Say It LIST You Have to Read
Volume 8, Issue 3 SOLAR ECLIPSE NEWSLETTER SOLAR ECLIPSE March 2003 NEWSLETTER SUBSCRIBING TO The sole Newsletter dedicated to Solar Eclipses THE SOLAR Dear All, of March. Our aim is, being better ECLIPSE MAILING then SEC2000. Those whom at- Another Solar Eclipse Newsletter (SENL) tended SEC2000 in Antwerp will say it LIST you have to read. February was rather is impossible. Well … THE SOLAR ECLIPSE calm on the Solar Eclipse Mailing List MAILINGING LISTLIST ISIS MAIMAIN- (SEML). The annular eclipse of 31 May, the Moreover, we are doing our best to TAINED BY THE LIST total solar eclipse of 2003 are both of make the conference as well within some less interest for the chasers. Never- the budget range of every eclipse en- OWNER PATRICK POITE- theless, there are more tours and expedi- thusiast. If you want to contribute or VIN AND WITH THE SUP- tions available for the Antarctic eclipse in are willing to sponsor in any matter, PORT OF JAN VAN GESTEL November. Though, Joanne and I have to please contact us. We will open a HOW TO SUBSCRIBE: pass on this on. They are still too expen- bank account and we are currently in- sive. vestigating to accept credit cards as ININ THETHE BODYBODY OFOF THETHE well. We keep you posted via the For those preparing the Antarctic frost, see MES SAGE TO mailing lists SEML and SEWP and this on this front age the partial solar eclipse of [email protected]@Aula.com SUSUB- SENL. The SEC2004 WebPages will 21 May 1993 which I observed from Sval- SCRIBE SOLARECLIPSES be updated soon. -
Asteroids' Physical Models from Combined Dense and Sparse
Astronomy & Astrophysics manuscript no. hanus_2013_AA c ESO 2013 January 30, 2013 Asteroids' physical models from combined dense and sparse photometry and scaling of the YORP effect by the observed obliquity distribution 1 1 1 2 3 4 5 6 7 J. Hanuš ∗, J. Durechˇ , M. Brož , A. Marciniak , B. D. Warner , F. Pilcher , R. Stephens , R. Behrend , B. Carry , D. Capekˇ 8, P. Antonini9, M. Audejean10, K. Augustesen11, E. Barbotin12, P. Baudouin13, A. Bayol11, L. Bernasconi14, W. Borczyk2, J.-G. Bosch15, E. Brochard16, L. Brunetto17, S. Casulli18, A. Cazenave12, S. Charbonnel12, B. Christophe19, F. Colas20, J. Coloma21, M. Conjat22, W. Cooney23, H. Correira24, V. Cotrez25, A. Coupier11, R. Crippa26, M. Cristofanelli17, Ch. Dalmas11, C. Danavaro11, C. Demeautis27, T. Droege28, R. Durkee29, N. Esseiva30, M. Esteban11, M. Fagas2, G. Farroni31, M. Fauvaud12,32, S. Fauvaud12,32, F. Del Freo11, L. Garcia11, S. Geier33,34, C. Godon11, K. Grangeon11, H. Hamanowa35, H. Hamanowa35, N. Heck20, S. Hellmich36, D. Higgins37, R. Hirsch2, M. Husarik38, T. Itkonen39, O. Jade11, K. Kaminski´ 2, P. Kankiewicz40, A. Klotz41,42,R. A.Koff43, A. Kryszczynska´ 2, T. Kwiatkowski2, A. Laffont11, A. Leroy12, J. Lecacheux44, Y. Leonie11, C. Leyrat44, F. Manzini45, A. Martin11, G. Masi11, D. Matter11, J. Michałowski46, M. J. Michałowski47, T. Michałowski2, J. Michelet48, R. Michelsen11, E. Morelle49, S. Mottola36, R. Naves50, J. Nomen51, J. Oey52, W. Ogłoza53, A. Oksanen49, D. Oszkiewicz34,54, P. Pääkkönen39, M. Paiella11, H. Pallares11, J. Paulo11, M. Pavic11, B. Payet11, M. Polinska´ 2, D. Polishook55, R. Poncy56, Y. Revaz57, C. Rinner31, M. Rocca11, A. Roche11, D. Romeuf11, R. Roy58, H. Saguin11, P. -
Instructions and Helpful Info
Target NEOs! Instructions and Helpful Info. (Modified and updated from the OSIRIS-REx Target Asteroids! website at https://www.asteroidmission.org) May 2021 Prerequisites for participation. • An interest in astronomy. • An interest in observing and providing data to the scientific community. • An interest in learning more about asteroids and near-Earth objects. • Appropriate observing equipment or access to equipment. • Membership in the Astronomical League through a member club or as an individual Member- at-Large. Request a registration form from the coordinators. • Complete the Target NEOs! registration form. • Periodically you will receive updated information about the program. Obtain instrumentation. The minimum instrumentation recommended to participate in this project is: • Telescope 8” or larger; • CCD/CMOS Camera, computer with internet connection; and • Data reduction software (available via Target NEOs!) If you have an appropriate telescope and camera, you will be able to observe asteroids on the Target NEOs! list. The asteroids that can be observed depend on the telescope’s aperture (diameter of the mirror or lens), light pollution, geographic location, and asteroid’s location in the sky on a given night. If you do not have a telescope, you can still participate in the program by obtaining access to observing equipment: • Team up and use a telescope owned by a friend, astronomy club, local college or planetarium observatory. • Use a commercial telescope service. • Are you a member of a local astronomy club? If not, we recommend it! Local astronomy clubs provide connections and opportunities for observations. You will meet friendly members who will be happy to help you. Check out the Astronomical League and NASA Night Sky Network to locate a club near you. -
The Minor Planet Bulletin
THE MINOR PLANET BULLETIN OF THE MINOR PLANETS SECTION OF THE BULLETIN ASSOCIATION OF LUNAR AND PLANETARY OBSERVERS VOLUME 34, NUMBER 3, A.D. 2007 JULY-SEPTEMBER 53. CCD PHOTOMETRY OF ASTEROID 22 KALLIOPE Kwee, K.K. and von Woerden, H. (1956). Bull. Astron. Inst. Neth. 12, 327 Can Gungor Department of Astronomy, Ege University Trigo-Rodriguez, J.M. and Caso, A.S. (2003). “CCD Photometry 35100 Bornova Izmir TURKEY of asteroid 22 Kalliope and 125 Liberatrix” Minor Planet Bulletin [email protected] 30, 26-27. (Received: 13 March) CCD photometry of asteroid 22 Kalliope taken at Tubitak National Observatory during November 2006 is reported. A rotational period of 4.149 ± 0.0003 hours and amplitude of 0.386 mag at Johnson B filter, 0.342 mag at Johnson V are determined. The observation of 22 Kalliope was made at Tubitak National Observatory located at an elevation of 2500m. For this study, the 410mm f/10 Schmidt-Cassegrain telescope was used with a SBIG ST-8E CCD electronic imager. Data were collected on 2006 November 27. 305 images were obtained for each Johnson B and V filters. Exposure times were chosen as 30s for filter B and 15s for filter V. All images were calibrated using dark and bias frames Figure 1. Lightcurve of 22 Kalliope for Johnson B filter. X axis is and sky flats. JD-2454067.00. Ordinate is relative magnitude. During this observation, Kalliope was 99.26% illuminated and the phase angle was 9º.87 (Guide 8.0). Times of observation were light-time corrected. -
British Astronomical Association Handbook 2009
THE HANDBOOK OF THE BRITISH ASTRONOMICAL ASSOCIATION 2009 2008 October ISSN 0068-130-X CONTENTS CALENDAR 2009 . 2 PREFACE. 3 EDITOR’S NOTES REGARDING THE HANDBOOK SURVEY . 4 HIGHLIGHTS FOR 2009. 5-6 SKY DIARY FOR 2009 . 7 VISIBILITY OF PLANETS. 8 RISING AND SETTING OF THE PLANETS IN LATITUDES 52°N AND 35°S. 9-10 ECLIPSES . 11-14 TIME. 15-16 EARTH AND SUN. 17-19 MOON . 20 SUN’S SELENOGRAPHIC COLONGITUDE. 21 MOONRISE AND MOONSET . 22-25 & 140 LUNAR OCCULTATIONS . 26-34 GRAZING LUNAR OCCULTATIONS. 35-36 PLANETS – EXPLANATION OF TABLES. 37 APPEARANCE OF PLANETS. 38 MERCURY. 39-40 VENUS. 41 MARS. 42-43 ASTEROIDS AND DWARF PLANETS. 44-63 JUPITER . 64-67 SATELLITES OF JUPITER . 68-88 SATURN. 89-92 SATELLITES OF SATURN . 93-100 URANUS. 101 NEPTUNE. 102 COMETS. 103-114 METEOR DIARY . 115-117 VARIABLE STARS . 118-123 Algol; λ Tauri; RZ Cassiopeiae; Mira Stars; IP Pegasi EPHEMERIDES OF DOUBLE STARS . 124-125 BRIGHT STARS . 126 GALAXIES . 127-128 SUN, MOON AND PLANETS: Physical data. 129 SATELLITES (NATURAL): Physical and orbital data . 130-131 ELEMENTS OF PLANETARY ORBITS . 132 INTERNET RESOURCES. 133-134 CONVERSION FORMULAE AND ERRATA . 134 RADIO TIME SIGNALS. 135 PROGRAM AND DATA LIBRARY . 136 ASTRONOMICAL AND PHYSICAL CONSTANTS . 137-138 MISCELLANEOUS DATA AND TELESCOPE DATA . 139 GREEK ALPHABET . .. 139 Front Cover: The Crab Nebula, M1 (NGC 1952) in Taurus. Imaged in January 2008 by Andrea Tasseli from Lincoln, UK. Intes-Micro M809 8 inch (203mm) f/10 Maksutov-Cassegrain with Starlight Xpress SXV-H9 CCD and Astronomik filter set. Image = L (56x120s) and RHaGB (45x60s). -
Thermophysical Modeling of Main-Belt Asteroids from WISE Thermal Data
Thermophysical modeling of main-belt asteroids from WISE thermal data a, b a c J. Hanuˇs ∗, M. Delbo’ , J. Durechˇ , V. Al´ı-Lagoa aAstronomical Institute, Faculty of Mathematics and Physics, Charles University, V Holeˇsoviˇck´ach 2, 18000 Prague, Czech Republic bUniversit´eCˆote d’Azur, CNRS–Lagrange, Observatoire de la Cˆote d’Azur, CS 34229 – F 06304 NICE Cedex 4, France cMax-Planck-Institut f¨ur extraterrestrische Physik, Giessenbachstraße, Postfach 1312, 85741 Garching, Germany Abstract By means of a varied-shape thermophysical model of Hanusˇ et al. (2015, Icarus, Volume 256) that takes into account asteroid shape and pole uncertainties, we analyze the thermal infrared data acquired by the NASA’s Wide-field Infrared Survey Explorer of about 300 asteroids with derived convex shape models. We utilize publicly available convex shape models and rotation states as input for the thermophysical modeling. For more than one hundred asteroids, the thermophysical modeling gives us an acceptable fit to the thermal infrared data allowing us to report their thermophysical properties such as size, thermal inertia, surface roughness or visible geometric albedo. This work more than doubles the number of asteroids with determined thermophysical properties, especially the thermal inertia. In the remaining cases, the shape model and pole orientation uncertainties, specific rotation or thermophysical properties, poor thermal infrared data or their coverage prevent the determination of reliable thermophysical properties. Finally, we present the main results of the statistical study of derived thermophysical parameters within the whole population of main-belt asteroids and within few asteroid families. Our sizes based on TPM are, in average, consistent with the radiometric sizes reported by Mainzer et al. -
Characterization of Thermal Inertia
Thermophysical Investigation of Asteroid Surfaces I: Characterization of Thermal Inertia Eric M. MacLennana,b,∗, Joshua P. Emerya,c aEarth and Planetary Sciences Department, Planetary Geosciences Institute, The University of Tennessee, Knoxville, TN 37996, USA bDepartment of Physics, P.O. Box 64, 00560 University of Helsinki, Finland cDepartment of Physics and Astronomy, Northern Arizona University, NAU Box 6010, Flagstaff, AZ 86011, USA Abstract The thermal inertia of an asteroid is an indicator of the thermophysical properties of the regolith and is determined by the size of grains on the surface. Previous thermophysical modeling studies of asteroids have identified or suggested that object size, rotation period, and heliocentric distance (a proxy for temperature) are important factors that separately in- fluence thermal inertia. In this work we present new thermal inertia values for 239 asteroids and model all three factors in a multi-variate model of thermal inertia. Using multi-epoch infrared data of this large set of objects observed by WISE, we derive the size, albedo, ther- mal inertia, surface roughness, and sense of spin using a thermophysical modelling approach that doesn't require a priori knowledge of an object's shape or spin axis direction. Our thermal inertia results are consistent with previous values from the literature for similarly sized asteroids, and we identify an excess of retrograde rotators among main-belt asteroids < 8 km. We then combine our results with thermal inertias of 220 objects from the litera- ture to construct a multi-variate model and quantify the dependency on asteroid diameter, rotation period, and surface temperature. This multi-variate model, which accounts for co-dependencies between the three independent variables, identifies asteroid diameter and surface temperature as strong controls on thermal inertia. -
Asteroids a Selection of Articles from Wikipedia
Asteroids A selection of articles from Wikipedia PDF generated using the open source mwlib toolkit. See http://code.pediapress.com/ for more information. PDF generated at: Sun, 16 Jun 2013 00:34:45 UTC Contents Articles Asteroids overview 1 Asteroid 1 Spectral Types 16 Asteroid spectral types 16 Asteroids in Fiction 19 Asteroids in fiction 19 Ceres in fiction 32 Lists 35 List of minor planets named after people 35 List of minor planets named after rivers 64 List of minor planets named after places 65 References Article Sources and Contributors 79 Image Sources, Licenses and Contributors 81 Article Licenses License 83 1 Asteroids overview Asteroid Asteroids are minor planets (small Solar System bodies and dwarf planets) that are not comets, especially those of the inner Solar System. They have also been called planetoids, especially the larger ones. These terms have historically been applied to any astronomical object orbiting the Sun that did not show the disk of a planet and was not observed to have the characteristics of an active comet, but as small objects in the outer Solar System were discovered, their volatile-based surfaces were found to more closely resemble comets, and so were often distinguished from traditional asteroids.[1] Thus the term asteroid has come increasingly to refer Animation of asteroid 433 Eros in rotation. specifically to the small bodies of the inner Solar System out to the orbit of Jupiter. They are grouped with the outer bodies—centaurs, Neptune trojans, and trans-Neptunian objects—as minor planets, which is the term preferred in astronomical circles.[2] In this article the term "asteroid" refers to the minor planets of the inner Solar System. -
The Minor Planet Bulletin
THE MINOR PLANET BULLETIN OF THE MINOR PLANETS SECTION OF THE BULLETIN ASSOCIATION OF LUNAR AND PLANETARY OBSERVERS VOLUME 37, NUMBER 1, A.D. 2010 JANUARY-MARCH 1. ASTEROID LIGHTCURVE ANALYSIS AT THE OAKLEY As far as we are aware, these are the first reported observations for SOUTHERN SKY OBSERVATORY: 2009 APRIL – MAY the period of the following asteroids: 2009 Voloshina, 2217 Eltigen, 2610 Tuva, 2665 Schrutka, 3219 Komaki, 3999 Richard Ditteon, Elaine Kirkpatrick Aristarchus, 4154 Rumsey, 4358 Lynn, 4417 Lecar, 5350 Rose-Hulman Institute of Technology CM 171 Epetersen, 5567 Durisen, (5787) 1992 FA1, 5839 GOI, (6073) 5500 Wabash Ave., Terre Haute, IN 47803 1939 UB, (7255) 1993 VY1, and 13018 Geoffjames. One asteroid, [email protected] 255 Oppavia, had a published period of 14.3 ± 0.4 h found by Behrend (2009). Our data for 255 Oppavia could not be made to Katelyn Doering fit this period. Six of the asteroids appear to have long periods, but Avon High School, Avon, IN we did not get enough data to determine a rotational period. These were 1097 Vicia, 1454 Kalevala, 4147 Lennon, (5773) 1989 NO, (Received: 2009 Aug 28) (14720) 2000 CQ85, and (29665) WD24. For seven of the asteroids the lightcurve amplitude was smaller than random Photometric data for 30 asteroids were collected over 23 variation in our data, so no period could be found. This list nights of observing during 2009 April and May at the includes 957 Camelia, 2670 Chuvashia, 2869 Nepryadva, 3432 Oakley Southern Sky Observatory. The asteroids were: Kobuchizawa, 3909 Gladys, 4654 Gor’kavyj, and 8151 255 Oppavia, 957 Camelia, 1097 Vicia, 1454 Kalevala, Andranada. -
Target Asteroids! List of Near-Earth Asteroids and Asteroids Analogous to (101955) Bennu
Target Asteroids! List of Near-Earth Asteroids and Asteroids Analogous to (101955) Bennu Data Link to JPL MPC Link to Near- submitted by Link to Small Date added to Object Ephemerides Name Orbit/family PHA Spectral class Earth Objects- Comments Target MPC Bodies List Designation Dynamic Site Asteroids! website Observers (3200) Phaethon 3200 Phaethon MPC Apollo JPL NEO NEODyS-2 Oct. 2013 X (3361) Orpheus 3361 Orpheus MPC Apollo PHA V JPL NEO NEODyS-2 Feb. 2012 X (7350) 1993 VA 7350 MPC Apollo carbonaceous? JPL NEO NEODyS-2 Feb. 2012 X (7753) 1988 XB 7753 MPC Apollo PHA JPL NEO NEODyS-2 Apr. 2013 (7888) 1993 UC 7888 MPC Apollo JPL NEO NEODyS-2 Jan. 2013 X (10302) 1989 ML 10302 MPC Aten PHA E JPL NEO NEODyS-2 Feb. 2012 X (25143) Itokawa 25143 Itokawa MPC Apollo PHA Sq JPL NEO NEODyS-2 Hayabusa target Feb. 2012 (52381) 1993 HA 52381 MPC Amor JPL NEO NEODyS-2 Feb. 2012 (52760) 1998 ML14 52760 MPC Apollo PHA JPL NEO NEODyS-2 Oct. 2013 X (65717) 1993 BX3 65717 MPC Apollo PHA JPL NEO NEODyS-2 Feb. 2012 (68278) 2001 FC7 68278 MPC Amor B/Ch JPL NEO NEODyS-2 Feb. 2012 X (89136) 2001 US16 89136 MPC Apollo PHA JPL NEO NEODyS-2 Feb. 2012 (98943) 2001 CC21 98943 MPC Apollo L JPL NEO NEODyS-2 Feb. 2012 (99799) 2002 LJ3 99799 MPC Amor JPL NEO NEODyS-2 Feb. 2012 X (101955) Bennu 101955 Bennu MPC Apollo PHA B JPL NEO NEODyS-2 OSIRIS-REx target Feb. 2012 X (10302) 1989 ML 10302 MPC Amor JPL NEO NEODyS-2 Feb. -
Minor Planet Names: Alphabetical List
ASTEROIDS Minor Planet Names: Alphabetical List This is an alphabetical listing of the names of the numbered minor planets. It was last updated on 2011, June 17 The available asteroids are now well over 16,000. Here’s the reference site: http://www.astro.com/swisseph/astlist.htm You will notice the respective asteroid number in parenthesis to the immediate left of each asteroid. To find out where any asteroid is in your chart, consult below the AstroDienst site below: http://www.astro.com/cgi/genchart.cgi?&cid=rtbfilepar7OA-u1056512981&nhor=1 Once you have imput your own chart data, insert the asteroid numbers of those asteroids you are interested in finding out (specific location in your chart) at the bottom left of the page. It will state “additional asteroids or "hypothetical" planets (please enter the numbers from the respective lists, e.g. "433,1221,h48").” Then click to the right, “Click Here To Show The Chart.” ***************************** [Bill Wrobel] Note: References below to zodiacal placements are to my own chart: Born July 1, 1950, Syracuse, New York, USA, 2:22 pm EDT [Born July, 1, 1950 at 2:22 PDT, Syracuse, New York, 43 N2.9, 76 W 8.9. Ascendant is 22 Libra 7, MC 26 Cancer 34, 11th house is 0 Virgo 8, 12th house cusp is 28 Virgo 47, 2nd house 19 Scorpio 32, 3rd house 21 Sagittarius 29. Mars is 8 Libra 23 widely conjunct Neptune is 14 Libra35—Neptune in its own house and Mars, as a natural key to identity & personal action, in the 12th-Pisces-neptune (Letter Twelve) house.