Astronotes Armagh Planetarium's Stellar Blog! ... Moon . ... Earth Satellites . ... By admin October 4, 2012 Posted in: Moon . A tiny second moon.This is Phobos (27 km across) seen over Mars by ESA's Mars Express (Image credit:ESA) . ... They concluded that at any given time Earth probably has a second moon. ... But, just perhaps, briefly the Earth had a second natural satellite seen by thousands of people.Remember the spectacular fireball witnessed over the UK and Ireland on 21 September 2012 ? ...

The spatial power spectra of Galactic . ... Neutral hydrogen is an important constituent of the interstellar medium, and has been widely studied at 21 cm line emission. Within the Galactic plane, structure of HI emission is seen over wide range of angular scales, down to tens of milliarc seconds. ... In the high galactic latitudes an alternative approach is seen more reasonable - to describe HI emission in terms of an angular power spectrum over a range of scales. ... Figure 1. ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

Figure 4a. The defocus in arcseconds of blur on the image plane is shown as a function of time for the night of August 14. Arrows mark the times at which the telescope focus was manually changed. The labels show the magnitude of the changes made. The squares show measurements of the defocus just prior to and after manual focus changes. ... Below I will show clear indications of errors in the secondary motions which are probably contributing significantly to focus errrors in the telescope. ...

... An interactive IRAF task for the analysis of Extreme Ultraviolet Explorer ( EUVE ) emission line spectra is presented. The line flux in extracted spectra may be measured by multiple techniques, including fitting individual lines. ... To aid in identifying lines, the positions of known lines may be marked on the spectrum during the fitting process. Also, model EUVE spectra may be constructed and overlaid using plasma emissivities and source emission measures supplied by the user. ...

... The first column shows the kinematical diagrams, where is the angle between the line of sight on the object and the vector of rotation about Z -axis, and V S is objects line-of-sight velocity relative to an observer at rest at the position of the Sun. The straight lines are regression fits, whose slopes yield the subsystem’s rotation rate. The second column shows the relations between metallicity and distance from the Galactic plane. ... privious figure | next figure . ...

. You can customise the mail program so that all your mail files are automatically held in one directory. These files are known as folders . To do this: . Create a directory to keep your mail folders in. Set the value of the environment variable folder to the pathname for this directory. To save a file to a folder in this directory, save the mail as usual, and append a + (plus sign) to the name of the file (folder) that the mail is to be stored in. Examples .

... Сегодня: 10 апреля 2016 г. Исследовательский центр NASA Ames Research Center в Маунтин Вью (Калифорния, США) открыл в виртуальной вселенной Second Life собственный остров. ... Об открытии виртуальной зоны NASA руководитель проекта Саймон Уорден объявил на очередной ежегодной конференции International Space Development, которая прошла в минувшую субботу в здании Национального космического общества (NSS). ... NASA открыло исследовательский центр во вселенной Second Life . ...

... Tonight's Sky . ... Observing . ... Subscriber Extras . Sky this Month . ... Web Extras . ... space flight . ... Astronomy for Kids . ... Web Extra: Watch how NuSTAR unfolded in space . ... NASA s newest X-ray space telescope put mission managers through 24 minutes of terror as it unfolded 57 tinker-toy-like sections in orbit. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... INTERNATIONAL SPACE STATION . VIDEOARCHIVE . THE SECOND PRIME MISSION . TO THE INTERNATIONAL SPACE STATION . 04/30/2001. ... Being launched from Baikonur cosmodrome on April 28, 2001, the Russian Soyuz TM-32 transport spacecraft has been docked with the International Space Station (ISS) following a 2-day free flight in near-earth orbit and upon completion of all the required rendezvous and berthing operations in an automated mode with respect to the Orbital Complex. ... SEA LAUNCH | ...

The most recent leap second was added on 2012 June 30: The protocol files in this version have been updated to UTC1-TAI = -35. The following IAU Circular describes prior leap seconds. As announced by the IAU Central Bureau for Astronomical Telegrams in Circular No. 9004 on 11 December 2008, Bulletin C36 of the International Earth Rotation and Reference Systems Service announced that a positive leap second will be added on 1 January 2009. ...

This diagram illustrates a second example of formatting an XML document. Five lines of text are displayed, all the same color. ... The second is the author's name and is in italics. ... The lines are: Fredrick the Great meets Bach Johann Nikolaus Forkel One evening, just as he was getting his flute ready and his musicians were assembled, an officer brought him a list of the strangers who had arrived. ...

... The goal of the course is to give a complete mathematical description of Shor's algorithm which factors an N digit integer in O(NNlog(N)log(log(N))) steps on a quantum computer. ... Quantum computations and measurements, unitary operators and projectors. ... I will describe each~Z step in Shor's algorithm. ... 2) I will give the mathematical definitions of quantum-bit, quantum-memory, and quantum-computation, used in Shor's algorithm. ... This is the first step in Shor's algorithm. ...

Euro-Asian Association of Astronomy Teachers . e-mail: gavrilov@issp.ac.ru . The Second Euro-Asian Congress . of Astronomy Teachers . Hope to be in the late 2004 or 2005. ... Attention for European astronomers: . Congresses of "Friendly" European Association for Astronomy Education: General Assembly 2004 . URL of this page: http://www.issp.ac.ru/astro/eaata/2s'ezd_e.html (last update 16.04.2004) . ...

... Telescopes ћ Binoculars ћ Microscopes . Binoculars Instruction Manual . ... Regardless of your application bird watching, nature studies, spectator sports or sightseeing you will appreciate the superior optics and durable construction that make Meade binoculars an excellent investment. ... FOCUS LOCK SYSTEM . Meade Safari Pro binoculars include a Focus Lock feature (see diagram), permitting the locking of the Center Focus Knob to maintain precise focus of an object at a specified distance. ...

Celestron Forum Message . Forums: . ... Discussion Forums | Celestron Equipment Discussion | ... Second Hand Buying Tips Please . Forum List | ... I am looking to buy a second hand scope, there are a couple of Celestron CPC 800 scopes for sale local to me. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Bojan Nikolic web pages home . ... Previous: Visiting ALMA Santiago office and the ALMA.. This is the second memo in the series. ... By observing bright and compact astronomical sources while also taking data with the 183 GHz Water Vapour Radiometers, ALMA will be able to measure the `empirical' relationship between fluctuations in the phase of the astronomical signal and the fluctuations of sky brightness around 183 GHz. ... Copyright 2012, Bojan Nikolic feedback welcome ...

... Several stars were observed during all period. ... The format is as follows: DAT MJD N SFI D DS FORMAT ( I8, F11.3, I4, 3F7.3 ) DAT - the data of observation MJD - modifyed Julian data (jd-2400000.5) N - the number of instantenious latitudes obtained in the data SFI - diurnal latitude on the data (in arcsec) ( plus 59њ 46'12" for the period 1904-1941, 59њ 46'10" for the period 1948-2006) D - mean square error of instantenious latitude (in arcsec). ...

... 18941904; Bespalov P.A. Effective saturation of absorption in a plasma magnetospheric maser. In book: Nonlinear Space Plasma Physics, R.Z. Sagdeev -Editor-in-Chief, American Institute of Physics, 1993, p.339-346]. Magnetospheric plasma maser [Bespalov P.A, Trakhtengerts V.Yu., ... In a magnetospheric plasma maser (MPM) the relatively dense magnetised plasma and the conjugate ends of a magnetic trap form a quasioptical resonator for electromagnetic waves. ...

RFI SUBTRACTION WITH A REFERENCE HORN: APPLICATION TO PULSARS AND VLBI F. H. Briggs (1) , M. J. Kesteven (2) (1) Kapteyn Astronomical Institute, Postbus 800, 9700AV Groningen, The Netherlands, fbriggs@astro.rug.nl (2) CSIRO Australia Telescope National Facility, P.O. Box 76, Epping, NSW 1710, Australia, mkesteve@atnf.csiro.au ABSTRACT Cross correlation of an RFI reference signal with the corrupted radio astronomy data ... Fig. ... PHASE A B C D 1 2 1 2 1 2 1 2 Fig. ...