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Index Abulfeda crater chain (Moon), 97 Aphrodite Terra (Venus), 142, 143, 144, 145, 146 Acheron Fossae (Mars), 165 Apohele asteroids, 353–354 Achilles asteroids, 351 Apollinaris Patera (Mars), 168 achondrite meteorites, 360 Apollo asteroids, 346, 353, 354, 361, 371 Acidalia Planitia (Mars), 164 Apollo program, 86, 96, 97, 101, 102, 108–109, 110, 361 Adams, John Couch, 298 Apollo 8, 96 Adonis, 371 Apollo 11, 94, 110 Adrastea, 238, 241 Apollo 12, 96, 110 Aegaeon, 263 Apollo 14, 93, 110 Africa, 63, 73, 143 Apollo 15, 100, 103, 104, 110 Akatsuki spacecraft (see Venus Climate Orbiter) Apollo 16, 59, 96, 102, 103, 110 Akna Montes (Venus), 142 Apollo 17, 95, 99, 100, 102, 103, 110 Alabama, 62 Apollodorus crater (Mercury), 127 Alba Patera (Mars), 167 Apollo Lunar Surface Experiments Package (ALSEP), 110 Aldrin, Edwin (Buzz), 94 Apophis, 354, 355 Alexandria, 69 Appalachian mountains (Earth), 74, 270 Alfvén, Hannes, 35 Aqua, 56 Alfvén waves, 35–36, 43, 49 Arabia Terra (Mars), 177, 191, 200 Algeria, 358 arachnoids (see Venus) ALH 84001, 201, 204–205 Archimedes crater (Moon), 93, 106 Allan Hills, 109, 201 Arctic, 62, 67, 84, 186, 229 Allende meteorite, 359, 360 Arden Corona (Miranda), 291 Allen Telescope Array, 409 Arecibo Observatory, 114, 144, 341, 379, 380, 408, 409 Alpha Regio (Venus), 144, 148, 149 Ares Vallis (Mars), 179, 180, 199 Alphonsus crater (Moon), 99, 102 Argentina, 408 Alps (Moon), 93 Argyre Basin (Mars), 161, 162, 163, 166, 186 Amalthea, 236–237, 238, 239, 241 Ariadaeus Rille (Moon), 100, 102 Amazonis Planitia (Mars), 161 COPYRIGHTED -
Radio Images of a Large Stellar Coronal Loop on Algol
Radio Images of A Large Stellar Coronal Loop on Algol W. M. Peterson*, R. L. Mutel*, M. Gudel**,¨ W. M. Goss† *Department of Physics and Astronomy, University of Iowa, Van Allen Hall, Iowa City, Iowa 52240, USA **ETH Zurich, Institute of Astronomy, 8093 Zurich, Switzerland †National Radio Astronomy Observatory, Pete V. Domenici Science Operations Center, 1003 Lopezville Road, Socorro, New Mexico 87801, USA The close binary Algol contains a radio-bright K subgiant star in a very close (0.062 AU), rapid (2.86 day) orbit with a main sequence B8 star. Since the rotation periods of the two stars are tidally locked to the orbital period, the consequent rapid rotation drives a robust magnetic dynamo. A large body of evidence points to the existence of an extended, complex coronal magnetosphere originating at the cooler K subgiant1–4. The detailed morphology of the subgiant’s corona and its possible interaction with its companion are unknown, though theory predicts that the coronal plasma should be confined in magnetic loop structure5, as seen on the Sun. Here we report multi-epoch radio imaging of the Algol system, in which we see a large, persistent coronal loop approximately one subgiant diameter in height, whose base is straddling the subgiant and whose apex is oriented toward the B star. This strongly suggests that a persistent asymmetric magnetic field structure is aligned between the two stars. The loop is larger than anticipated theoretically6, 7, but the size may be a result of a magnetic interaction between the two stars. 1 We made six twelve-hour observations of Algol during a period from 6 April to 17 August 2008 with the High Sensitivity Array (HSA), a global very long baseline interferometer array. -
2017 Fall Event Brochure
RING RD LOCATIONS ELM ST 1 MAIN LIBRARY LIBRARIES IN RED 1510 E UNIVERSITY BLVD PARKING GARAGES IN BLUE WARREN AVE WARREN 520.621.6442 ARIZONA HEALTH LIBRARY.ARIZONA.EDU FOR FULL PARKING MAP AND FEE INFORMATION SCIENCES CENTER PARKING.ARIZONA.EDU, 520.626.7275 CAMPBELL AVE CAMPBELL 2 SCIENCE-ENGINEERING LIBRARY 744 N HIGHLAND AVE 520.621.6384 E DRACHMAN ST UAMC VINE AVE PATIENT & VISITOR GARAGE 3 FINE ARTS LIBRARY HIGHLAND AVE PARK AVE PARK HIGHLAND E MABEL ST 1017 N OLIVE RD GARAGE AVE CHERRY FRED FOX SCHOOL OF MUSIC MOUNTAIN AVE MOUNTAIN 2nd FLOOR, ROOM 233 E HELEN ST 520.621.7009 PARK AVE GARAGE 4 SPECIAL COLLECTIONS EUCLID AVE WARREN AVE WARREN 1510 E UNIVERSITY BLVD E SPEEDWAY BLVD E SPEEDWAY BLVD 520.621.6423 SPECCOLL.LIBRARY.ARIZONA.EDU ONE WAY E FIRST ST MUSIC TYNDALL AVE TYNDALL BLDG 5 HEALTH SCIENCES LIBRARY E FIRST ST 1501 N CAMPBELL AVE MOUNTAIN AVE MOUNTAIN CAMPBELL AVE CAMPBELL PALM DR PALM OLIVE RD SECOND ST 2nd FLOOR MAIN ONE WAY E SECOND ST GATE GARAGE 520.626.6125 GARAGE AHSL.ARIZONA.EDU E SECOND ST COVER IMAGE: CHERRY AVE CHERRY Detail, Portrait of Martin Luther, OLD MALL CLOSED TO TRAFFIC E UNIVERSITY BLVD by Lucas Cranach the Elder (1472-1553), MAIN E UNIVERSITY BLVD 1528 (Veste Coburg), oil on panel TYNDALL AVE GARAGE CHERRY AVE GARAGE E FOURTH ST E FOURTH ST CHERRY AVE CHERRY ENKE DR TYNDALL AVE TYNDALL PARK AVE PARK LOWELL CAMPBELL AVE CAMPBELL EUCLID AVE NAT’L CHAMPIONS DR CHAMPIONS NAT’L SIXTH ST HIGHLAND AVE E SIXTH ST GARAGE E SIXTH ST FALL 2017 SPECIAL COLLECTIONS SPECIAL EVENTS speccoll.library.arizona.edu Library Cats Tech Breakfast Contact: Kathy McCarthy | 520.626.8332 Saturday, October 28, 9–11 a.m., Science-Engineering Library [email protected] All alumni and friends are welcome at our Homecoming EXHIBIT | Opens August 7 celebration. -
Chapter 12 the Moon and Mercury: Comparing Airless Worlds The
11/4/2015 The Moon: The View from Earth From Earth, we always see the same side of the moon. Moon rotates around its axis in the same time that it takes to orbit Chapter 12 around Earth: The Moon and Mercury: Tidal coupling: Earth’s gravitation has Comparing Airless Worlds produced tidal bulges on the moon; Tidal forces have slowed rotation down to same period as orbital period Lunar Surface Features Highlands and Lowlands Two dramatically Sinuous rilles = different kinds of terrain: remains of ancient • Highlands: lava flows Mountainous terrain, scarred by craters May have been lava • Lowlands: ~ 3 km lower than highlands; smooth tubes which later surfaces: collapsed due to Maria (pl. of mare): meteorite bombardment. Basins flooded by Apollo 15 lava flows landing site The Highlands Impact Cratering Saturated with craters Impact craters on the moon can be seen easily even with small telescopes. Older craters partially … or flooded by Ejecta from the impact can be seen as obliterated by more lava flows bright rays originating from young recent impacts craters 1 11/4/2015 History of Impact Cratering Missions to the Moon Rate of impacts due to Major challenges: interplanetary Need to carry enough fuel for: bombardment decreased • in-flight corrections, rapidly after the formation of the solar system. • descent to surface, • re-launch from the surface, • return trip to Earth; Most craters seen on the need to carry enough food and other moon’s (and Mercury’s) life support for ~ 1 week for all surface were formed astronauts on board. Lunar module (LM) of within the first ~ ½ billion Solution: Apollo 12 on descent to the years. -
Sunnyvale Heritage Resources
CARIBBEAN DR 3RD AV G ST C ST BORDEAUX DR H ST 3RD AV Heritage Trees CARIBBEAN DR CASPIAN CT GENEVA DR ENTERPRISE WY 4TH AV Local Landmarks E ST CASPIAN DR BALTIC WY Heritage Resources 5TH AV JAVA DR 5TH AV MOFFETT PARK DR CROSSMAN AV 300-ft Buffer CHESAPEAKE TR GIBRALTAR CT GIBRALTAR DR ORLEANS DR MOFFETT PARK DR 7TH AV MACON RD ANVILWOOD City Boundary ENTERPRISEWY CT G ST C ST MOFFETT PARK CT 8TH AV HUMBOLDT CT PERSIAN DR FORGEWOODAV SR-237 ANVILWOODAV INNSBRUCK DR ELKO DR 9TH AV E ST FAIR OAKS WY BORREGAS AV D ST P O R P O I S ALDERWOODAV 11TH AV MOFFETT PARK DR E BA Y TR PARIA BIRCHWOODDR MATHILDA AV GLIESSEN JAEGALS RD GLIN SR-237 PLAZA DR PLENTYGLIN LA ROCHELLE TR TASMAN DR ENTERPRISE WY ENTERPRISE MONTEGO VIENNA DR KASSEL INNOVATION WAY BRADFORD DR MOLUCCA MONTEREY LEYTE MORSE AV KIHOLO LEMANS ROSS DR MUNICH LUND TASMAN CT KARLSTAD DR ESSEX AV COLTON AV FULTON AV DUNCAN AV HAMLIN CT SAGINAW FAIR OAKS AV TOYAMA DR SACO LAWRENCEEXPRESSWAY GARNER DR LYON US-101 SALERNO SAN JORGEKOSTANZ TIMOR KIEL CT SIRTE SOLOMON SUEZ LAKEBIRD DR CT DRIFTWOOD DRIFTWOOD CT CHARMWOOD CHARMWOOD CT SKYLAKE VALELAKE CT CT CLYDE AV BREEZEWOOD CT LAKECHIME DR JENNA PECOS WY AHWANEE AV LAKEDALE WY WEDDELL LOTUSLAKE CT GREENLAKE DR HIDDENLAKE DR WEDDELL DR MEADOWLAKE DR ALMANOR AV FAIRWOODAV STONYLAKE SR-237 LAKEFAIR DR CT CT LYRELAKE LYRELAKE HEM BLAZINGWOOD DR REDROCK CT LO CT CK ALTURAS AV SILVERLAKEDR AV CT CANDLEWOOD LAKEHAVEN DR BURNTWOOD CT C B LAKEHAVEN A TR U JADELAKE SAN ALESO AV R N MADRONE AV LAKEKNOLL DR N D T L PALOMAR AV SANTA CHRISTINA W CT -
September 2020 BRAS Newsletter
A Neowise Comet 2020, photo by Ralf Rohner of Skypointer Photography Monthly Meeting September 14th at 7:00 PM, via Jitsi (Monthly meetings are on 2nd Mondays at Highland Road Park Observatory, temporarily during quarantine at meet.jit.si/BRASMeets). GUEST SPEAKER: NASA Michoud Assembly Facility Director, Robert Champion What's In This Issue? President’s Message Secretary's Summary Business Meeting Minutes Outreach Report Asteroid and Comet News Light Pollution Committee Report Globe at Night Member’s Corner –My Quest For A Dark Place, by Chris Carlton Astro-Photos by BRAS Members Messages from the HRPO REMOTE DISCUSSION Solar Viewing Plus Night Mercurian Elongation Spooky Sensation Great Martian Opposition Observing Notes: Aquila – The Eagle Like this newsletter? See PAST ISSUES online back to 2009 Visit us on Facebook – Baton Rouge Astronomical Society Baton Rouge Astronomical Society Newsletter, Night Visions Page 2 of 27 September 2020 President’s Message Welcome to September. You may have noticed that this newsletter is showing up a little bit later than usual, and it’s for good reason: release of the newsletter will now happen after the monthly business meeting so that we can have a chance to keep everybody up to date on the latest information. Sometimes, this will mean the newsletter shows up a couple of days late. But, the upshot is that you’ll now be able to see what we discussed at the recent business meeting and have time to digest it before our general meeting in case you want to give some feedback. Now that we’re on the new format, business meetings (and the oft neglected Light Pollution Committee Meeting), are going to start being open to all members of the club again by simply joining up in the respective chat rooms the Wednesday before the first Monday of the month—which I encourage people to do, especially if you have some ideas you want to see the club put into action. -
Geologic Map of the Victoria Quadrangle (H02), Mercury
H01 - Borealis Geologic Map of the Victoria Quadrangle (H02), Mercury 60° Geologic Units Borea 65° Smooth plains material 1 1 2 3 4 1,5 sp H05 - Hokusai H04 - Raditladi H03 - Shakespeare H02 - Victoria Smooth and sparsely cratered planar surfaces confined to pools found within crater materials. Galluzzi V. , Guzzetta L. , Ferranti L. , Di Achille G. , Rothery D. A. , Palumbo P. 30° Apollonia Liguria Caduceata Aurora Smooth plains material–northern spn Smooth and sparsely cratered planar surfaces confined to the high-northern latitudes. 1 INAF, Istituto di Astrofisica e Planetologia Spaziali, Rome, Italy; 22.5° Intermediate plains material 2 H10 - Derain H09 - Eminescu H08 - Tolstoj H07 - Beethoven H06 - Kuiper imp DiSTAR, Università degli Studi di Napoli "Federico II", Naples, Italy; 0° Pieria Solitudo Criophori Phoethontas Solitudo Lycaonis Tricrena Smooth undulating to planar surfaces, more densely cratered than the smooth plains. 3 INAF, Osservatorio Astronomico di Teramo, Teramo, Italy; -22.5° Intercrater plains material 4 72° 144° 216° 288° icp 2 Department of Physical Sciences, The Open University, Milton Keynes, UK; ° Rough or gently rolling, densely cratered surfaces, encompassing also distal crater materials. 70 60 H14 - Debussy H13 - Neruda H12 - Michelangelo H11 - Discovery ° 5 3 270° 300° 330° 0° 30° spn Dipartimento di Scienze e Tecnologie, Università degli Studi di Napoli "Parthenope", Naples, Italy. Cyllene Solitudo Persephones Solitudo Promethei Solitudo Hermae -30° Trismegisti -65° 90° 270° Crater Materials icp H15 - Bach Australia Crater material–well preserved cfs -60° c3 180° Fresh craters with a sharp rim, textured ejecta blanket and pristine or sparsely cratered floor. 2 1:3,000,000 ° c2 80° 350 Crater material–degraded c2 spn M c3 Degraded craters with a subdued rim and a moderately cratered smooth to hummocky floor. -
ATHOS: On-The-Fly Stellar Parameter Determination of FGK Stars Based
Astronomy & Astrophysics manuscript no. ATHOS c ESO 2018 September 7, 2018 ATHOS: On-the-fly stellar parameter determination of FGK stars based on flux ratios from optical spectra? Michael Hanke1, Camilla Juul Hansen2; 3, Andreas Koch1, and Eva K. Grebel1 1 Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Mönchhofstr. 12-14, D-69120 Heidelberg, Germany e-mail: [email protected] 2 Max Planck Institute for Astronomy, Königstuhl 17, D-69117 Heidelberg, Germany 3 Dark Cosmology Centre, The Niels Bohr Institute, Juliane Maries Vej 30, 2100 Copenhagen, Denmark September 7, 2018 ABSTRACT The rapidly increasing number of stellar spectra obtained by existing and future large-scale spectroscopic surveys feeds a demand for fast and efficient tools for the spectroscopic determination of fundamental stellar parameters. Such tools should not only comprise customized solutions for one particular survey or instrument, but, in order to enable cross-survey comparability, they should also be capable of dealing with spectra from a variety of spectrographs, resolutions, and wavelength coverages. To meet these ambitious specifications, we developed ATHOS (A Tool for HOmogenizing Stellar parameters), a fundamentally new analysis tool that adopts easy-to-use, computationally inexpensive analytical relations tying flux ratios (FRs) of designated wavelength regions in optical spectra to the stellar parameters effective temperature (Teff ), iron abundance ([Fe/H]), and surface gravity (log g). Our Teff estimator is based on FRs from nine pairs of wavelength ranges around the Balmer lines Hβ and Hα, while for [Fe/H] and log g we provide 31 and 11 FRs, respectively, which are spread between ∼ 4800 Å and ∼ 6500 Å; a region covered by most optical surveys. -
High-Resolution Topography of Mercury from Messenger Orbital Stereo Imaging – the Southern Hemisphere Quadrangles
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XLII-3, 2018 ISPRS TC III Mid-term Symposium “Developments, Technologies and Applications in Remote Sensing”, 7–10 May, Beijing, China HIGH-RESOLUTION TOPOGRAPHY OF MERCURY FROM MESSENGER ORBITAL STEREO IMAGING – THE SOUTHERN HEMISPHERE QUADRANGLES F. Preusker 1 *, J. Oberst 1,2, A. Stark 1, S. Burmeister 2 1 German Aerospace Center (DLR), Institute of Planet. Research, Berlin, Germany – (stephan.elgner, frank.preusker, alexander.stark, juergen.oberst)@dlr.de 2 Technical University Berlin, Institute for Geodesy and Geoinformation Sciences, Berlin, Germany – (steffi.burmeister, juergen.oberst)@tu-berlin.de Commission VI, WG VI/4 KEY WORDS: Mercury, MESSENGER, Digital Terrain Models ABSTRACT: We produce high-resolution (222 m/grid element) Digital Terrain Models (DTMs) for Mercury using stereo images from the MESSENGER orbital mission. We have developed a scheme to process large numbers, typically more than 6000, images by photogrammetric techniques, which include, multiple image matching, pyramid strategy, and bundle block adjustments. In this paper, we present models for map quadrangles of the southern hemisphere H11, H12, H13, and H14. 1. INTRODUCTION Mercury requires sophisticated models for calibrations of focal length and distortion of the camera. In particular, the WAC The MErcury Surface, Space ENviorment, GEochemistry, and camera and NAC camera were demonstrated to show a linear Ranging (MESSENGER) spacecraft entered orbit about increase in focal length by up to 0.10% over the typical range of Mercury in March 2011 to carry out a comprehensive temperatures (-20 to +20 °C) during operation, which causes a topographic mapping of the planet. -
San Diego Astronomy Association Celebrating 40 Years of Astronomical Outreach
San Diego Astronomy Association Celebrating 40 Years of Astronomical Outreach Office (619) 645-8940 Observatory (619) 766-9118 The Scales http://www.sdaa.org by Scott Baker A Non-Profit Educational Association P.O. Box 23215, San Diego, CA 92193-3215 This month’s constellation is Libra “The Scales”. In ancient times, the great civilizations of the time had different ideas about SDAA Business Meeting Libra. The Greeks, didn’t see scales they considered this portion Will be held at: of the sky part of Scorpius. As a matter of fact, the two bright- SKF Condition Monitoring est stars in the constellation, Alpha and Beta Librae, have names 5271 Viewridge Court San Diego, CA 92123 that refer back to the constellation of Scorpius. They are known May 11th at 7:00pm as Zubenelgenubi and Zubeneschamalia, which are derivations of older Arabic names that translate into “Southern Claw” (i.e. of Program Meeting the Scorpion) for Alpha Librae and “The Northern Claw” for Beta June 16th at 7:00PM Librae. Showing of the film The Romans however, saw a scale or balance in the constella- “Universe: tion, and so named it Libra. They felt the constellation was impor- The Cosmology Quest” tant enough to give a place in the twelve Zodiacal Constellations, and is the only constellation of the Zodiac that represents and Mission Trails Regional Park Visitor & Interpretive Center inanimate object. Why so important you ask? 4000 years ago, 1 Father Junipero Serra Trail the sun, when entering Libra, marked the beginning of autumn, San Diego, CA 92119 Snacks ∗ Prizes ∗ Info ∗ Fun Doors open at 6:30PM See page 6 for details CONTENTS June 2004 Vol. -
Libra (Astrology) - Wikipedia, the Free Encyclopedia
מַ זַל מֹאזְ נַיִם http://www.morfix.co.il/en/Libra بُ ْر ُج ال ِميزان http://www.arabdict.com/en/english-arabic/Libra برج ِمي َزان https://translate.google.com/#en/fa/Libra Ζυγός Libra - Wiktionary http://en.wiktionary.org/wiki/Libra Libra Definition from Wiktionary, the free dictionary See also: libra Contents 1 English 1.1 Etymology 1.2 Pronunciation 1.3 Proper noun 1.3.1 Synonyms 1.3.2 Derived terms 1.3.3 Translations 1.3.4 See also 1.4 Noun 1.4.1 Antonyms 1.4.2 Translations 1.5 See also 1.6 Anagrams 2 Portuguese 2.1 Noun 3 Spanish 3.1 Proper noun English Signs of the Zodiac Virgo Scorpio English Wikipedia has an article about Libra. Etymology From Latin lībra (“scales, balance”). Pronunciation IPA (key): /ˈliːbrə/ Homophone: libre 1 of 3 6/9/2015 7:13 PM Libra - Wiktionary http://en.wiktionary.org/wiki/Libra Audio (US) 0:00 MENU Proper noun Libra 1. (astronomy ): A constellation of the zodiac, supposedly shaped like a set of scales. 2. (astrology ): The astrological sign for the scales, ruled by Venus and covering September 24 - October 23 (tropical astrology) or October 16 - November 16 (sidereal astrology). Synonyms ♎ Derived terms Libran Librae Translations constellation [show ▼] astrological sign [show ▼] See also Zubenelgenubi Zubeneschamali Noun Libra ( plural Libras ) 1. Someone with a Libra star sign Antonyms Aries Translations Someone with a Libra star sign [show ▼] See also 2 of 3 6/9/2015 7:13 PM Libra - Wiktionary http://en.wiktionary.org/wiki/Libra (Western astrology signs ) Western astrology sign ; Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra , Scorpio, Sagittarius, Capricorn, Aquarius, Pisces (Category: en:Astrology) Anagrams Arbil brail Portuguese Noun Libra f 1. -
Publications Year: 2005 1. Apostolovska, G., Ivanova, V
Publications year: 2005 1. Apostolovska, G., Ivanova, V., Borisov, G., Bilkina B., CCD of Asteroids at Rozhen National Astronomical Observatory from 2001 to 2003, 2005, Aerospace Research in Bulgaria, 20, 314-322 2. Apostolovska, G. Bilkina, B., Observations of the Comet Machholz 2004 Q2, MPC 53603- 53604, 24 Feb. 2005. 3. Bachev, R., Strigachev, A., Semkov, E., Short-term optical variability of high-redshift QSO's, 2005, MNRAS, 358, 774-780 4. Bode, M., Zamanov, R., Marchant, J., O'Brien, T. J., V2361 Cygni, 2005, IAUC, .No. 8511 5. Budding, E., Bakis, V., Erdem, A., Demircan, O., Iliev, L., Iliev, I., Slee, O. B., Multi-Facility Study of the Algol-Type Binary Delta Librae, 2005, Ap&SS, 296, 371-389 6. van Cauteren, P., Lampens, P., Robertson, C. W., Strigachev, A., Search for intrinsic variable stars in three open clusters: NGC 1664, NGC 6811, NGC 7209, 2005, Co. Ast., 146, 21-32 7. Dechev, M., Duchlev, P., Koleva, K., Kokotanekova, J., Petrov, N., Publ. Astron. Soc. R. Bo? kovi?, 2005, 5, 145-152 8. Dechev, M., Duchlev, P. Koleva, K. Petrov, N., Helical internal structures in eruptive prominences, 2005, Aerospace Research in Bulgaria, 20 245-252 9. Dimitrov, D. P., Panov, K. P., The flare activity of YZ CMi in 1999 – 2004, 2005, Aerospace Research in Bulgaria, 20, 214-217 10. Dimitrov, D. P., Panov, K. P., Long-term photometric investigation of FK Com, 2005, Aerospace Research in Bulgaria, 20, 218-223 11. Djurasevic, G. Dimitrov, D., Arbutina, B. Albayrak, B., Selam, S. O., A study of close binary system EE Cet, 2005, Mem Soc.