... 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. ...

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. ...

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. ...

... 29.03.2016 . ... Credit Copyright: Martin Pugh Rick Stevenson Explanation: Fantastic shapes lurk in clouds of glowing gas in the giant star forming region NGC 6188. ... Joining NGC 6188 on this cosmic canvas, visible toward the lower right, is rare emission nebula NGC 6164 , also created by one of the region's massive O-type stars. ... NASA Web Site Statements, Warnings, and Disclaimers . ... Publications with keywords: stars . Publications with words: stars . ... Galaxies, Stars, and Dust . ...

... 2010 August 29 . The Local Fluff . ... In the disk of our Milky Way Galaxy about 10 percent of visible matter is in the form of gas, called the interstellar medium (ISM). ... These observations show that our Sun is moving through a Local Interstellar Cloud as this cloud flows outwards from the Scorpius-Centaurus Association star forming region. Our Sun may exit the Local Interstellar Cloud , also called the Local Fluff, during the next 10,000 years. ... About APOD | ...

... This is combined emission from all the gas clouds circling the black hole, between 0.1 and 10 light years out. ... These are the expanding clouds of gas left behind when a massive star comes to the end of its life and explodes, producing a supernova. ... Also known as the Veil nebula, a vast and beautiful whispy nebula left over from an exploding star. ... The Crab Nebula (120kb). ... Carbon Star (120kb) Red giant stars, surrounded by clouds or carbon dust. ... 3500 K star (64kb) , like Aldebaran. ...

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? ...

... 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. ...

... Meta Index / Home Page / Description There are three special file-based filters which perform filtering with Good Time Intervals, spatial image masks, and region tables. ... It must be in either of the four forms setname , setname+blockid , setname[blockid] , or setname:blockid where setname must be the name of an existing data set and blockid an identifier of a block in that data set. If the first form, setname , is used, the filter data are sought in the first block of the named data set. ...

. Please use the following for publications and media citations: . "Based on observations obtained with Apache Point Observatory's 0.5-m Astrophysical Research Consortium Small Aperture Telescope." . List of publications based on 0.5-m observations (TBD) . for questions or comments contact archive server .

We present Hubble Space Telescope ultraviolet spectra and supporting ground-based data for a sample of nine intermediate-mass T Tauri stars (IMTTSs; 1.5-4 Msolar). ... We compare our simultaneous optical-UV data with predictions from accretion shock models to get accretion luminosities and mass accretion rates (M) for the targets. ... Finally, we find that the relation between accretion luminosity and BrнЕ luminosity found for low-mass T Tauri stars extends to the intermediate-mass regime. ...

... 1999, A , 350, 917 . ... Shock heated NH3 in a molecular jet associated with a high-mass young star . ... 1999, ApJL, in press . ... 1999, A , in press . ... 1999, in "The First Stars", eds. A. Weiss, T. Abel and M. Norman, in press . The formation of primordial stars . ... 1999, in "Star Formation 1999", ed. T. Nakamoto, in press . ... T. Jacq, A. Baudry, C.M. Walmsley, P. Caselli . ... 1999, ApJ, in press . ... Star Formation . ... Osservatorio Astrofisico di Arcetri . ... Star Formation Group . ...

... We report on our ongoing project ``Infrared Study of HII Regions Associated with Small Clouds.' ... These IR data, combined with optical imaging (which will be obtained from the IAC-80 telescope), IRAS survey maps, and existing CO observations of the associated clouds, will allow us to undertake a detailed investigation of the gas-to-dust mass ratio, initial mass function and the star-formation efficiency in these complexes. ... CHECKPSF: check the PSF (Point Spread Function) model, . ...

... 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. ...

... Research . ... The major problem in HVC research is the unknown distance towards most of the HVCs. ... Thilker et al. (2004) used the Green Bank Telescope (GBT) to map an area of $7^{\circ} \times 7^{\circ}$ around M31 in H i . They discovered a population of HVCs located within a projected distance of about $50~\mathrm{kpc}$ from M31. ... 2004). ... The remaining HVCs around M31 are isolated in position and velocity and may represent primordial, dark-matter-dominated clouds. ...

... Records were made this January when the RadioAstron satellite was joined by ground-based telescopes, forming a radio telescope 220,000 km across тАУ roughly 20 times larger than the Earth. RadioAstron , a Russian orbital telescope of 10 meter diameter, joined with ground-based observatories to resolve objects 50 times smaller than is possible with the Hubble Space Telescope. ... Images: . The RadioAstron spaceantenna observes a celestial radio source simultaneously with ground-based dishes. ...

... 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 . ...

Astrophysics Group . Cavendish Laboratory . Department of Physics > Astrophysics . ... Keith Grainge . ... Last modified: 8 August 2009 . 2009 Astrophysics Group, Department of Physics, Cavendish Laboratory, University of Cambridge . ...

Catastrophism : . ... During the late 18th and early 19th century, a German mineralogist, Abraham Gottlob Werner, proposed that all of the Earth's rocks were formed by rapid chemical precipitation from a "world ocean," which he then summarily disposed of in catastrophic fashion. Though not directed toward the genesis of landforms in any coherent fashion, his catastrophic philosophy of changes of the Earth had two major consequences of geomorphic significance. ... Thermal Plate Tectonics : . ...

... 1997: . For the most representative sample of 277 most nearby galaxies, their masses, separations and tidal indexes were determined based on the BTA observations. ... The most detailed light curve of optical star-like source (corresponding to the gamma-burst of May 8, 1997) was obtained from the BTA observations simultaneously in 4 photometric bands. ... An effect of an abrupt rate slowdown is noticeable in the infrared (~8000A) 36 days after the gamma-ray burst. ... Archive . ...