The Fixed Stars Report Joe
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Mathématiques Et Espace
Atelier disciplinaire AD 5 Mathématiques et Espace Anne-Cécile DHERS, Education Nationale (mathématiques) Peggy THILLET, Education Nationale (mathématiques) Yann BARSAMIAN, Education Nationale (mathématiques) Olivier BONNETON, Sciences - U (mathématiques) Cahier d'activités Activité 1 : L'HORIZON TERRESTRE ET SPATIAL Activité 2 : DENOMBREMENT D'ETOILES DANS LE CIEL ET L'UNIVERS Activité 3 : D'HIPPARCOS A BENFORD Activité 4 : OBSERVATION STATISTIQUE DES CRATERES LUNAIRES Activité 5 : DIAMETRE DES CRATERES D'IMPACT Activité 6 : LOI DE TITIUS-BODE Activité 7 : MODELISER UNE CONSTELLATION EN 3D Crédits photo : NASA / CNES L'HORIZON TERRESTRE ET SPATIAL (3 ème / 2 nde ) __________________________________________________ OBJECTIF : Détermination de la ligne d'horizon à une altitude donnée. COMPETENCES : ● Utilisation du théorème de Pythagore ● Utilisation de Google Earth pour évaluer des distances à vol d'oiseau ● Recherche personnelle de données REALISATION : Il s'agit ici de mettre en application le théorème de Pythagore mais avec une vision terrestre dans un premier temps suite à un questionnement de l'élève puis dans un second temps de réutiliser la même démarche dans le cadre spatial de la visibilité d'un satellite. Fiche élève ____________________________________________________________________________ 1. Victor Hugo a écrit dans Les Châtiments : "Les horizons aux horizons succèdent […] : on avance toujours, on n’arrive jamais ". Face à la mer, vous voyez l'horizon à perte de vue. Mais "est-ce loin, l'horizon ?". D'après toi, jusqu'à quelle distance peux-tu voir si le temps est clair ? Réponse 1 : " Sans instrument, je peux voir jusqu'à .................. km " Réponse 2 : " Avec une paire de jumelles, je peux voir jusqu'à ............... km " 2. Nous allons maintenant calculer à l'aide du théorème de Pythagore la ligne d'horizon pour une hauteur H donnée. -
FIXED STARS a SOLAR WRITER REPORT for Churchill Winston WRITTEN by DIANA K ROSENBERG Page 2
FIXED STARS A SOLAR WRITER REPORT for Churchill Winston WRITTEN BY DIANA K ROSENBERG Page 2 Prepared by Cafe Astrology cafeastrology.com Page 23 Churchill Winston Natal Chart Nov 30 1874 1:30 am GMT +0:00 Blenhein Castle 51°N48' 001°W22' 29°‚ 53' Tropical ƒ Placidus 02' 23° „ Ý 06° 46' Á ¿ 21° 15° Ý 06' „ 25' 23° 13' Œ À ¶29° Œ 28° … „ Ü É Ü 06° 36' 26' 25° 43' Œ 51'Ü áá Œ 29° ’ 29° “ àà … ‘ à ‹ – 55' á á 55' á †32' 16° 34' ¼ † 23° 51'Œ 23° ½ † 06' 25° “ ’ † Ê ’ ‹ 43' 35' 35' 06° ‡ Š 17° 43' Œ 09° º ˆ 01' 01' 07° ˆ ‰ ¾ 23° 22° 08° 02' ‡ ¸ Š 46' » Ï 06° 29°ˆ 53' ‰ Page 234 Astrological Summary Chart Point Positions: Churchill Winston Planet Sign Position House Comment The Moon Leo 29°Le36' 11th The Sun Sagittarius 7°Sg43' 3rd Mercury Scorpio 17°Sc35' 2nd Venus Sagittarius 22°Sg01' 3rd Mars Libra 16°Li32' 1st Jupiter Libra 23°Li34' 1st Saturn Aquarius 9°Aq35' 5th Uranus Leo 15°Le13' 11th Neptune Aries 28°Ar26' 8th Pluto Taurus 21°Ta25' 8th The North Node Aries 25°Ar51' 8th The South Node Libra 25°Li51' 2nd The Ascendant Virgo 29°Vi55' 1st The Midheaven Gemini 29°Ge53' 10th The Part of Fortune Capricorn 8°Cp01' 4th Chart Point Aspects Planet Aspect Planet Orb App/Sep The Moon Semisquare Mars 1°56' Applying The Moon Trine Neptune 1°10' Separating The Moon Trine The North Node 3°45' Separating The Moon Sextile The Midheaven 0°17' Applying The Sun Semisquare Jupiter 0°50' Applying The Sun Sextile Saturn 1°52' Applying The Sun Trine Uranus 7°30' Applying Mercury Square Uranus 2°21' Separating Mercury Opposition Pluto 3°49' Applying Venus Sextile -
The Brightest Stars Seite 1 Von 9
The Brightest Stars Seite 1 von 9 The Brightest Stars This is a list of the 300 brightest stars made using data from the Hipparcos catalogue. The stellar distances are only fairly accurate for stars well within 1000 light years. 1 2 3 4 5 6 7 8 9 10 11 12 13 No. Star Names Equatorial Galactic Spectral Vis Abs Prllx Err Dist Coordinates Coordinates Type Mag Mag ly RA Dec l° b° 1. Alpha Canis Majoris Sirius 06 45 -16.7 227.2 -8.9 A1V -1.44 1.45 379.21 1.58 9 2. Alpha Carinae Canopus 06 24 -52.7 261.2 -25.3 F0Ib -0.62 -5.53 10.43 0.53 310 3. Alpha Centauri Rigil Kentaurus 14 40 -60.8 315.8 -0.7 G2V+K1V -0.27 4.08 742.12 1.40 4 4. Alpha Boötis Arcturus 14 16 +19.2 15.2 +69.0 K2III -0.05 -0.31 88.85 0.74 37 5. Alpha Lyrae Vega 18 37 +38.8 67.5 +19.2 A0V 0.03 0.58 128.93 0.55 25 6. Alpha Aurigae Capella 05 17 +46.0 162.6 +4.6 G5III+G0III 0.08 -0.48 77.29 0.89 42 7. Beta Orionis Rigel 05 15 -8.2 209.3 -25.1 B8Ia 0.18 -6.69 4.22 0.81 770 8. Alpha Canis Minoris Procyon 07 39 +5.2 213.7 +13.0 F5IV-V 0.40 2.68 285.93 0.88 11 9. Alpha Eridani Achernar 01 38 -57.2 290.7 -58.8 B3V 0.45 -2.77 22.68 0.57 144 10. -
Downloads/ Astero2007.Pdf) and by Aerts Et Al (2010)
This work is protected by copyright and other intellectual property rights and duplication or sale of all or part is not permitted, except that material may be duplicated by you for research, private study, criticism/review or educational purposes. Electronic or print copies are for your own personal, non- commercial use and shall not be passed to any other individual. No quotation may be published without proper acknowledgement. For any other use, or to quote extensively from the work, permission must be obtained from the copyright holder/s. i Fundamental Properties of Solar-Type Eclipsing Binary Stars, and Kinematic Biases of Exoplanet Host Stars Richard J. Hutcheon Submitted in accordance with the requirements for the degree of Doctor of Philosophy. Research Institute: School of Environmental and Physical Sciences and Applied Mathematics. University of Keele June 2015 ii iii Abstract This thesis is in three parts: 1) a kinematical study of exoplanet host stars, 2) a study of the detached eclipsing binary V1094 Tau and 3) and observations of other eclipsing binaries. Part I investigates kinematical biases between two methods of detecting exoplanets; the ground based transit and radial velocity methods. Distances of the host stars from each method lie in almost non-overlapping groups. Samples of host stars from each group are selected. They are compared by means of matching comparison samples of stars not known to have exoplanets. The detection methods are found to introduce a negligible bias into the metallicities of the host stars but the ground based transit method introduces a median age bias of about -2 Gyr. -
The British Astronomical Association
` ISSN 2631-4843 The British Astronomical Association Variable Star Section Circular No. 184 June 2020 Office: Burlington House, Piccadilly, London W1J 0DU Contents From the Director ....................................................................................................... 3 Summer Miras............................................................................................................ 3 Missing data from 1980-1995 – John Toone .............................................................. 6 Pulsating Star Programme – Shaun Albrighton .......................................................... 7 Report on the Long Period Variable Z Ursae Majoris using BAAVSS Archival Data – John Greaves .................................................................................... 9 Betelgeuse: the expected recovery happens – Mark Kidger ....................................... 14 Betelgeuse – A Century and more of Variation – Christopher Lloyd ........................... 22 CV & E News – Gary Poyner ..................................................................................... 28 Supernova 2020ue in NGC 4636 – Guy Hurst............................................................ 31 Spectrum of SN 2020hvf – David Boyd ...................................................................... 32 Eclipsing Binary News – Des Loughney ..................................................................... 33 Algol type eclipsing binary TX UMa. Can all sources have the correct period? – James Screech .............................................................................. -
The Electric Sun Hypothesis
Basics of astrophysics revisited. II. Mass- luminosity- rotation relation for F, A, B, O and WR class stars Edgars Alksnis [email protected] Small volume statistics show, that luminosity of bright stars is proportional to their angular momentums of rotation when certain relation between stellar mass and stellar rotation speed is reached. Cause should be outside of standard stellar model. Concept allows strengthen hypotheses of 1) fast rotation of Wolf-Rayet stars and 2) low mass central black hole of the Milky Way. Keywords: mass-luminosity relation, stellar rotation, Wolf-Rayet stars, stellar angular momentum, Sagittarius A* mass, Sagittarius A* luminosity. In previous work (Alksnis, 2017) we have shown, that in slow rotating stars stellar luminosity is proportional to spin angular momentum of the star. This allows us to see, that there in fact are no stars outside of “main sequence” within stellar classes G, K and M. METHOD We have analyzed possible connection between stellar luminosity and stellar angular momentum in samples of most known F, A, B, O and WR class stars (tables 1-5). Stellar equatorial rotation speed (vsini) was used as main parameter of stellar rotation when possible. Several diverse data for one star were averaged. Zero stellar rotation speed was considered as an error and corresponding star has been not included in sample. RESULTS 2 F class star Relative Relative Luminosity, Relative M*R *eq mass, M radius, L rotation, L R eq HATP-6 1.29 1.46 3.55 2.950 2.28 α UMi B 1.39 1.38 3.90 38.573 26.18 Alpha Fornacis 1.33 -
Variable Star Section Circular 179 (Des Loughney, March 2019) Discussed the LY Aurigae System and Suggested Making Observations of It
` ISSN 2631-4843 The British Astronomical Association Variable Star Section Circular No. 180 June 2019 Office: Burlington House, Piccadilly, London W1J 0DU Contents From the Director 3 Spectroscopy training workshop – Andy Wilson 4 CV & E News – Gary Poyner 5 BAAVSS campaign to observe the old Nova HR Lyr – Jeremy Shears 6 Narrow Range Variables, made for digital observation – Geoff Chaplin 9 AB Aurigae – John Toone 10 The Symbiotic Star AG Draconis – David Boyd 13 V Bootis revisited – John Greaves 16 OJ287: Astronomers asking if Black Holes need wigs – Mark Kidger 19 The Variable Star Observations of Alphonso King – Alex Pratt 25 Eclipsing Binary News – Des Loughney 26 LY Aurigae – David Connor 29 Section Publications 31 Contributing to the VSSC 31 Section Officers 32 Cover Picture M88 and AL Com in outburst: Nick James Chelmsford, Essex UK 2019 Apr 29.896UT 90mm, f4.8 with ASI294 MC Exposure 20x120s 2 Back to contents From the Director Roger Pickard And so, with this issue I bid you farewell as Section Director, as advised in the previous Circular. However, as agreed with Jeremy and the other officers, I shall retain the title of Assistant Director, principally to help with charts and old data input. However, I shall still be happy to receive emails from members who I have corresponded with in the past, especially those I've helped under the Mentoring Scheme. SUMMER MIRAS But a note on data submission. Some of you have been sending your "current" observations to the Pulsating Stars M = Max, m = min. Secretary, Shaun Albrighton, but you should be sending them to the Section Secretary, Bob Dryden. -
Binocular Certificate Handbook
Irish Federation of Astronomical Societies Binocular Certificate Handbook How to see 110 extraordinary celestial sights with an ordinary pair of binoculars © John Flannery, South Dublin Astronomical Society, August 2004 No ordinary binoculars! This photograph by the author is of the delightfully whimsical frontage of the Chiat/Day advertising agency building on Main Street, Venice, California. Binocular Certificate Handbook page 1 IFAS — www.irishastronomy.org Introduction HETHER NEW to the hobby or advanced am- Wateur astronomer you probably already own Binocular Certificate Handbook a pair of a binoculars, the ideal instrument to casu- ally explore the wonders of the Universe at any time. Name _____________________________ Address _____________________________ The handbook you hold in your hands is an intro- duction to the realm far beyond the Solar System — _____________________________ what amateur astronomers call the “deep sky”. This is the abode of galaxies, nebulae, and stars in many _____________________________ guises. It is here that we set sail from Earth and are Telephone _____________________________ transported across many light years of space to the wonderful and the exotic; dense glowing clouds of E-mail _____________________________ gas where new suns are being born, star-studded sec- tions of the Milky Way, and the ghostly light of far- Observing beginner/intermediate/advanced flung galaxies — all are within the grasp of an ordi- experience (please circle one of the above) nary pair of binoculars. Equipment __________________________________ True, the fixed magnification of (most) binocu- IFAS club __________________________________ lars will not allow you get the detail provided by telescopes but their wide field of view is perfect for NOTES: Details will be treated in strictest confidence. -
The Magic Valley Astronomical Society Notes from the President February
February Highlights Notes from the President Feb. 1st, 6:45 to 9:00 PM Our first general membership meeting for the New Year will be held at 7:00 P.M. on Satur- Family night telescope day the 12th of February, 2011. We will be meeting at the Herrett Center, on the College of viewing. Centennial Obs. Southern Idaho Campus. Admission: $1.50, free for children 6 and under. Free Tom Gilbertson will host our annual telescope workshop "I Have a New Telescope, Now with paid planetarium admis- What?" If you are new to the hobby or if you have new equipment that you would like as- sion. sistance in learning how to operate, please bring it along (as well as any instruction manu- als) and our members will be happy to provide you with whatever assistance is required. Feb 12th, 7:00 pm to mid- This event is open to the general public and we encourage non-members to join us for this night Monthly Membership evening. General Meeting and Monthly free star party. Members in attendance will pair off with new (or old) telescope owners during the break- out sessions and teach them how to operate their new telescope (or old). We could use a Feb 15th, 7:00 to 9:00 PM lot of help from our members, so that no one has to wait to be helped. We had a good turn Family night telescope out last year and we expect more this year as well. Following the meeting we will take viewing. Centennial Obs. everyone with their telescopes up to the Stargazer’s Deck at the Centennial Observatory Admission: $1.50, free for for a evening of observing. -
{Fre (Focafeolni
ilntt . nt t Astron o m {fre (Focafeolni Years of Vol. X No. 7 December, 1997 December12th Meeting of the Atlante a new,modern 5060 s€t planetariutrLThis spacewould be AstroDomyClub et the Fernbank usedfor clasroom teachingand OpenHouse wents. We Planeterium. also have proposedthe p:rcbase of two 16' Meade This month's meetingwill be held on Decenber telescopes,orE of which would be located at the l2th at the Fen$ankScierpe Center's Planetarium at 8:00. Observatory,ard theoth€r at a dark site, rcmotetyoperated. Dueto thBWinter Holidays,tlrc meting is scheduledftr This plan would allow us to haveone modemtelescolE at thes€cond not thethird weekin December.Fernbank will the Observatoryfor pedagogicalpurposes, ard anotbr be tEating us io a Christmaspla:rtarium so pleasecorre modemtelescope in dark skies for student and facdty outand enjoy youself. rEs€archFojects. olr proposalis pan of the College's MasterPla4 and ny bope is rhAt the addition can!e Bredley Notes . dedicatedat lbe 50th Amivenary of tb€ Brddlery by CbrisDe Pree Observatoryin Jure,2000. BradleyObservatory, Agnes Scott College Firully, we arcplanning to usethe Beck telescope in It's beena busy monthat the BradleyObsewatory. thedorp for OpenHouse events, student observing, ard an The semesteris wirding down,ard we only haveamther atrnosphericsensing project with GeorgiaTech Research fewdays of classat AgrresScon College. Helerc Diclcel d Institute.This type of res€archis caled LIDAR (a fte theUniversity of Illinois at UftartaChampagrc was our fir$ BradleyT-shirt to the fr$ en!.il I get conecdyexplaining guestOpen House lecuer at the Obsewatorylast month. wbat LIDAR standsfor!), ard can be used to Fobe IIer visit went extetrEly well; shcwas able to speakwith temperahrc,oensity, and compositionof the aunospherE. -
Basics of Astrophysics Revisited. I. Mass- Luminosity Relation for K, M and G Class Stars
Basics of astrophysics revisited. I. Mass- luminosity relation for K, M and G class stars Edgars Alksnis [email protected] Small volume statistics show, that luminosity of slow rotating stars is proportional to their angular momentums of rotation. Cause should be outside of standard solar model. Slow rotating giants and dim dwarfs are not out of „main sequence” in this concept. Predictive power of stellar mass-radius- equatorial rotation speed-luminosity relation has been offered to test in numerous examples. Keywords: mass-luminosity relation, stellar rotation, stellar mass prediction, stellar rotation prediction ...Such vibrations would proceed from deep inside the sun. They are a fast way of transporting large amounts of energy from the interior to the surface that is not envisioned in present theory.... They could stir up the material inside the sun, which current theory tends to see as well layered, and that could affect the fusion dynamics. If they come to be generally accepted, they will require a reworking of solar theory, and that carries in its train a reworking of stellar theory generally. These vibrations could reverberate throughout astronomy. (Science News, Vol. 115, April 21, 1979, p. 270). Actual expression for stellar mass-luminosity relation (fig.1) Fig.1 Stellar mass- luminosity relation. Credit: Ay20. L- luminosity, relative to the Sun, M- mass, relative to the Sun. remain empiric and in fact contain unresolvable contradiction: stellar luminosity basically is connected with their surface area (radius squared) but mass (radius in cube) appears as a factor which generate luminosity. That purely geometric difference had pressed astrophysicists to place several classes of stars outside of „main sequence” in the frame of their strange theoretic constructions. -
Milestone Goto-Bino Series .Cdr
Kson MilestoneK Standard Alt/Az GOTO Mount INSTRUCTIONS CONTENT FOR KSON STANDARD ALT/AZ GOTO USER INTRODUCTION.................................................................................1 ACCESSORIES..................................................................................2 ASSEMBLY INSTRUCTIONS.............................................................3 FEATURES.........................................................................5 OPERATION MANUAL FOR SKYTOUCH CONTROLLER............... 6 KEY DESCRIPTION.................................................................................6 STATUS DESCRIPTION...........................................................................6 OPERATION PROCESS...........................................................................7 POWER ON......................................................................................7 WARNING........................................................................................7 ALIGNMENT STATUS........................................................................7 CHANGE THE DATE..................................................................7 CHANGE THE TIME...................................................................8 CHANGE THE SITE...................................................................8 ALIGNMENT.............................................................................9 NAVIGATION STATUS.....................................................................11 MENU STATUS................................................................................11