The nasa.gov site requires that JavaScripts be enabled in your browser. ... Contact NASA . ... The term "astronaut" derives from the Greek words meaning "space sailor," and refers to all who have been launched as crew members aboard NASA spacecraft bound for orbit and beyond. Since the inception of NASA's human space flight program, we have also maintained the term "astronaut" as the title for those selected to join the NASA corps of astronauts who make "space sailing" their career profession. ...

... Credit Copyright: Bob Franke Explanation: A mere 600 light-years away, M44 is one of the closest star clusters to our solar system. Also known as the Praesepe or the Beehive cluster its stars are young though, about 600 million years old compared to our Sun's 4.5 billion years. ... An open cluster spanning some 15 light-years, M44 holds 1,000 stars or so and covers about 3 full moons (1.5 degrees) on the sky in the constellation Cancer. ... Publications with keywords: M 44 - open cluster . ...

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Survey Telescopes . ... Star Clusters . ... FLAMES . ... 100 Hours of Astronomy . ... IMAX€о 3D Film Hidden Universe . ... This image, the first to be released publicly from VISTA, the worldтАЩs largest survey telescope, shows the spectacular star-forming region known as the Flame Nebula, or NGC 2024, in the constellation of Orion (the Hunter) and its surroundings. ...

... 2013 January 1 . A Double Star Cluster . ... Explanation: Few star clusters are seen to be so close to each other. Some 7,000 light-years away, though, this pair of open or galactic star clusters is an easy binocular target, a lovely starfield in the northern constellation Perseus . ... In addition to being physically close together, the clusters' ages based on their individual stars are similar - evidence that both clusters were likely a product of the same star-forming region . ...

Databases (NSDC) of the Natural Planetary Satellites. ... NSDC: Database of astrometric observations of Natural Planetary Satellites . ... They are thoroughly looking for observations in different sources, creating their owndatabases which are then mostly inaccessible to other researchers. ... In the file "content" with explications, the reference is given to the data source as well as the bibliographic reference. ... Data sources. ... Why a specific bibliographic database for Natural satellites? ...

... Up: Science Software Applications . ... It has extensions for creating GUI (Tk) and object-oriented ([incr tcl]) applications. Several Tcl-based tools that may be used for astronomical and other scientific applications have been created and are discussed. One example is ptcl , which registers PGPLOT functions as Tcl commands, creating a powerful interactive plotting package. ... Both programs use the same C code, Tcl commands, and [incr tcl] classes; only the GUIs are different. ...

Dark matter maps for a sample of 50 individual galaxy clusters (left), an average galaxy cluster (center), and those based on dark matter theory (right). ... The map based on predictions from CDM theory (right, middle) is a close match to the average galaxy cluster observed with the Subaru Telescope. NAOJ/ASIAA/School of Physics and Astronomy, University of Birmingham/Kavli IPMU/Astronomical Institute, Tohoku University ...

... Dnepr launch record 17 August 2011. ... Baikonur Cosmodrome Yasny launch base Downloads . ... Yasny launch base is located in Orenburg Region, Russia. ... Admin & Hotel Complex including hotels, dining facilities and office premises; . Assembly, Integration and Test Building (AITB) incorporating clean room facilities and fueling station; . ... Yasny launch base AITB is divided into four main areas: Clean room 1 (CR1), Clean room 2 (CR2), Fueling Station and Offloading & Storage Area. ...

... The ARIBIB is an on-line bibliographical data base for astronomical references. The ARIBIB is based on the information given in the printed bibliography ``Astronomy and Astrophysics Abstracts'' (AAA). ... This reference format contains the author(s) or editor(s), title, bibliographic data for the source, keywords, and the AAA reference number. ... The abstracts can be found either in the printed volumes of AAA or in the on-line data bases INSPEC or INSPHYS. ... Figure 1: Query form. ...

... The Australian National University] [Department of Physics] [Paul Francis] [Main Roleplay Page] . These exercises are my attempt to adapt the technique of Problem Based Learning to the context of introductory astronomy and astrophysics classes. ... As students grapple with the puzzle, they are forced to learn the subject matter of the course. ... This exercise is designed for 1st year University students with a reasonable high-school background in Maths and Physics. ...

... Posts tagged ?model based? ... arXiv:stat.ME:0910.2585] . Variable Selection and Updating In Model-Based Discriminant Analysis for High Dimensional Data with Food Authenticity Applications . ... Category: Algorithms , arXiv , Cross-Cultural , Data Processing , Jargon , Methods , Spectral , Stat | ... Tags: bimodality , chi-square minimization , Classification , CMD , Estimation , machine learning , massive data , model based , PCA , spectral analysis , spectroscopic , survey , VO . ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ... Next: Step 3: Postprocessing to Up: How Pieflag works Previous: Step 1: Amplitude-based flagging . ...

... STScI-PRC99-26 HUBBLE IMAGES A SWARM OF ANCIENT STARS This stellar swarm is M80 (NGC 6093), one of the densest of the 147 known globular star clusters in the Milky Way galaxy. ... By analyzing the Wide Field and Planetary Camera 2 (WFPC2) images, including images taken through an ultraviolet filter, astronomers have found a large population of "blue stragglers" in the core of the cluster. These stars appear to be unusually young and more massive than the other stars in a globular cluster. ...

List of publications . ... Moscow University Press. 160 pp. ... Shevchenko V.V. A Lunar Base. Moscow. ... Shevchenko V.V., Chikmachev V.I. Lunar Base - a Project of XXI Century. ... Shevchenko V.V., Pugacheva S.G., Dehktereva K.I. Brightness Characteristics of the Infrared and Visible Radiation of the Lunar Surface. ... Problems of Complex Research of the Moon. ... Solar System Research. ... Baydal G.M., Sizentzev G.A., Sotnikov B.I., Shevchenko V.V. Lunar Base Infrastructure and Lunar Resources. ...

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. ...

... The most powerful and widely used methods to calculate the scattering matrix of a fractal cluster are based on the coupled dipoles methods (e.g. the Discrete Dipole Approximation, DDA) and the theory of light scattering by a cluster of spherical particles [2-4]. ... At present the procedure of calculation of the scattering matrix is well developed for both an oriented cluster of spherical particles and for chaotically oriented clusters of such particles [4]. ...

... Mokhovaya st., 11, Moscow, 103907, Russia . ... Moscow Institute for Physics and Technology . ... 9, Dolgoprudny, Moscow region, Russia. ... 1999, Vol. ... In this report, we discuss an approach to construction of information searching systems based on dynamic chaos and intended to operate in computer networks, local area or Internet. Also we discuss an application of this technology to the problems of searching for information in unstructured text databases with natural-language requests. ...

. F IGURE . 10. Dependence of cluster metallicity on (a) Galactocentric distance and (b) distance from the Galactic plane. The filled and open circles correspond to the young and old halos, respectively, and the straight lines are the corresponding rms regressions. The small square shows the old-halo cluster excluded from computations based on a 3 criterion. discussion in the text | privious figure | next figure .

... Общероссийская неделя "Астрономия на тротуаре" - 15-17 апреля . ... Практическая астрономия ? Астрономия и компьютеры (Модераторы: Deimos , Ed_Vazhorov ) ? PIC 16F627 Based EQ-5 / CG-5 Dual Axis Hand Controller . ...

... 0.01 10 Prob./0.01 -1 a) -1 b) 10 10 -2 10 -2 10 -3 10 -3 10 -4 10 -4 10 -5 10 -5 10 -6 0.4 0.6 0.8 1 1.2 1.4 ER/Ebeam 10 -6 0.4 0.6 0.8 1 1.2 1.4 EL/Ebeam Snowmass 05 3 23 August 05 ­ David Strom ­ UO · Use very tight acollinearity cut for energy tune-up OPAL Prob. ... 0.01 1 10 10 10 10 10 10 -1 -2 -3 -4 -5 -6 0 0.2 0.4 0.6 0.8 1 1.2 EL / Ebeam 8.75 < R < 11.75 Snowmass 05 4 23 August 05 ­ David Strom ­ UO · Make detector uniform so that no fiducial cuts in etc will b e needed. ...