Apollo 15 . ... AS15-99-13446 (31 July 1971) --- This ultra violet picture of Earth rising over the lunar surface was taken from the Command Module Endeavor during the 24th revolution of the moon. Astronaut Alfred M. Worden Jr., Apollo 15 command module pilot, remained with the Command and Service Module in lunar orbit while astronauts David R. Scott, commander, and James B. Irwin, lunar module pilot, descended in the Lunar Module to explore the Hadley-Apennine area of the moon. ...

... Астрофорум - астрономический портал ? ... Астрономическое оборудование и аксессуары (Модераторы: zlyden , Denk36 ) ? Dobsonian Revolution . ... Рейтинг: +84/-10 . Ответ #60 : 18.09.2003 [00:59:33] ? ... Последнее редактирование: 18.09.2003 [00:59:54] от Anton ? Записан . ... Последнее редактирование: 18.09.2003 [12:08:59] от Kolosov I. ? ... Рейтинг: +580/-50 . ... Последнее редактирование: 18.09.2003 [23:34:44] от Pluto ? ...

... The versatile and efficient INVERTOSCOPE? combines the highest optical performance with unsurpassed mechanical quality, and is backed by LOMO's unique lifetime warranty, the most comprehensive in the industry. ... A 15X focusing eyepiece with two interchangeable reticles (a 10mm/100div scale and a 10mm x 10mm/400sq grid) for convenient measuring and counting. ... A set of stage inserts and extension plates to accommodate a variety of sample vessels such as Petri dishes, flasks, microtest plates, etc...

. This color-coded plan view is based on an ESA Mars Express HRSC digital terrain model of the region, from which the topography of the landscape can be derived. The color coding enhances the visibility of the rippling sand dunes which formed in the wind-sheltered sides of the mounds and canyons. Centered at around 40ТАS and 310ТАE, the image has a ground resolution of about 23m per pixel. Taken during revolution 10,736 June 6, 2012. // Credit: ESA/DLR/FU Berlin (G. Neukum)

... State of the art Astronomy circa 1540 . ... Thursday, Oct 8, 2009 at 8:00 PM . ... Please join us for a pre-meeting dinner discussion at Changsho, 1712 Mass Ave, Cambridge, MA at 6:00pm before the meeting. ... Thursday, Oct 8, 2009 at 8:00 PM in Phillips Auditorium, Harvard-Smithsonian Center for Astrophysics ( 60 Garden St, Cambridge, MA ). ... Oct . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

home publications > mercury . ... Astronomy Beat . ... Nearly four centuries ago, Galileo's simple observations of Earth's planetary sibling, Venus, buoyed the proponents of a Copernican universe. ... The Italian astronomer had settled into a new house in Florence and had begun to observe Venus, which in November 1610 would have appeared as an evening star, bright in the western sky after dusk. ... From these two observations, Galileo inferred that Venus must orbit closer to the Sun than does Earth. ...

Team at the University of Amsterdam . Prof. L.B.F.M. Waters - Astronomical Institute "Anton Pannekoek", University of Amsterdam, NL and Institute for Astronomy, Catholic University of Leuven, Leuven, BE . ... F.J. Molster - Astronomical Institute "Anton Pannekoek", University of Amsterdam, NL . ... Astrophys., ... The Monte Carlo method to treat the polarized radiative transfer in dust shells was applied to young stars by Molster ( "Modelling of circumstellar extinction and polarization." ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualitГїs . des reportages . ... les plus belles images de l'Univers dГїcryptГїes pour vous . ... des pages consacrГїes Г la publication de vos photos Mais c'est aussi une vraie communautГї avec laquelle partager votre passion et nourrir votre curiositГї. Accueil Г? la une Voir l'univers, la rГїvolution en images . ... Figure de proue des tГїlescopes les plus performants au monde, Hubble a eu bien du mal Г voir le jour. ...

... Bad Astronomy . ... Mad Science . ... Or..why don't the planets orbit the sun in the same plane as the sun orbits the galactic center? ... The writer suggested that the angular momentum of the stars was related to the original cloud that collapsed to form them and not the galaxy angular momentum. ... As I understand the answer to 902372110.as, if the stars orbit is not related to the galaxy spin, then I would expect the stars to orbit the galaxy at a multitude of random orbits and no disk to form. ...

... 8, ``Celestial Mechanics'', 2002 High precision parallel algorithms of numerical integration of celestial mechanics problems N. V. Batkhina, A. B. Batkhin Volzhsky Institute of Humanities, Volgograd State University, Volzhsky, Russia We investigate different scenarios of dynamical chaos origin in Hamiltonian systems generated by some celestial mechanics problems. ... 22 We compiled these algorithms to C programming language with free multiple precision library GMP (GNU MP library) [5]. ...

... The very demanding goal of 50 milliarcseconds root-mean-square (mas RMS) for the astrometric precision of the Sloan Digital Sky Survey implies that focus and collimation motions of the secondary must be very smooth. The Apache Point Observatory 3.5-m telescope secondary is a hot-gas-fusion borosilicate lightweight (25% of solid) mirror. ... Differential rotation provides tilt motions. ... Also, we made measurements with the indicators sensing the motion of the whiffletrees near actuators 1 and 2. ...

Some common problems in geodesy and astrometry after establishing ICRF Victor V. Popadyov, Centre de geodesie et cartographie (CNIIGAiK) Svetlana A. Tolchel'nikova, GAO Pulkovo Distribution of duties between astrometry and geodesy · Connection between the 2 sciences was established by the plumb-line near Earth surface · Astrometry : ... E. rot., pole motion). ... Radiosources are unobservable from points of geodetic net. ...

Proposal Identification No.: P2474 Date Received: 2009-Feb-02 19:25:19 Technical Page Proposal Type: General Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Large Pulsars Extragalactic 510 Hours 2 hours Detecting nHz Gravitational Radiation using a Pulsar Timing Array Direct detection of gravitational radiation (GR) is a ma jor goal in experimental physics and will revolutionize astrophysics, opening an entirely new spectrum for exploration. ...

... Publications . ... Spin-orbit interaction and anomalous spin relaxation in carbon nanotube quantum dots . ... We study spin relaxation and decoherence caused by electron-lattice and spin-orbit interaction and predict striking effects induced by magnetic fields B . ... We discuss the difference in the magnetic-field dependence of the spin relaxation rate due to Rashba or Dresselhaus spin-orbit coupling for systems with positive (i.e., GaAs quantum dots) or negative (i.e., InAs quantum dots) $g$...

... This paper discuss a polynomial approximation to T for the range of 1620 to 2000 AD published by Jean Meeus and Larry Simons and gives a modified version of this approximation which is much more accurate. ... For this purpose Jean Meeus and Larry Simons published a paper in 2000, which gives a set of polynomial approximation of T for the range of years 1620 to 2000 (Meeus 2000). ... Using these empirical formulae we can calculate the value of T at any instant of the year for the range 1620 to 2000...

http://hea-www.harvard.edu/AstroStat/slog/2008/kepler-inference/ Weaving together Astronomy+Statistics+Computer Science+Engineering+Intrumentation, far beyond the growing borders Fri, 01 Jun 2012 18:47:52 +0000 hourly 1 http://wordpress.org/?v=3.4 http://hea-www.harvard.edu/AstroStat/slog/2008/kepler-inference/comment-page-1/#comment-200 vlk Fri, 18 Apr 2008 03:55:28 +0000 http://hea-www.harvard.edu/AstroStat/slog/?p=270#comment-200 Good point, Aneta. ... Good point, Aneta. ...

... COMETS . In 2003 the 21 periodical comets will return to perihelions. ... Perihelion Time . ... C/2001 RX 14, LINEAR . ... 1.00 . ... P/2001 YX127 (LINEAR) . ... July 7 . ... C/2001 HT50 (LINEAR-NEAT) . ... Aug. 18 . ... a parameter that specifies the shape of a conic section; one of the standard elements used to describe an elliptic orbit. ... the interval of time required to complete one revolution in an orbit or one cycle of a periodic phenomenon, such as a cycle of phases. ...

... Meade Instruments Corporation . Telescopes ћ Binoculars ћ Microscopes . ... Frequently Asked Questions: Meade ETX-Series . ... Which of the Autostar alignment procedures is recommended for viewing celestial objects right out of the box? When using Autostar, how important is leveling the telescope and pointing it to true north before alignment in the Alt/Az or Polar modes? ... Is there a problem with the telescope? ... top . ... Copyright 2006 Meade Instruments Corporation, All Rights Reserved. ...

... I will touch upon the following points: ­ fast evolution of the sizes of quiescent (elliptical) galaxies between z = 2 and z = 1; ­ prolonged star formation histories of dwarf spheroidal galaxies in the Local Group; ­ apparent lack of external sources of cold gas accretion for the nearby spiral galaxies; ­ old stellar ages and magnesium overabundance of the large-scale disks of nearby lenticular galaxies. ... This discovery has challenged the recognized scenarios of elliptical galaxy evolution. ...

Scale-heights of the Galactic disk subsytems with different ages and metallicities . V.Marsakov & Yu. ... It is based on the fact, that all stars cross the disk plane several times during their Galactic orbital period. ... We have used our representative sample of nearby disk F2-G2 stars Marsakov & Shevelev (1995) in which fundamental stellar parameters was determined on the basis of published date on uvby-photometry, proper motion and radial velocities. ... Marsakov V.A., Shevelev Yu.G. Bull. ...