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. ...

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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. ...

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• The NMW survey homepage

One of my on-going research interests concerns the dust shells of proto-planetary nebulae or PPNs (also called pre-planetary nebulae, transition objects, and post-AGB objects in the literature; the latter term also applies to a wider selection of objects such as RV Tauri stars), especially the carbon-rich ones that show the unidentified "21 micron' emission feature. ... I am working to find a complete sample of proto-planetary nebulae in these satellite galaxies from the millions of detected stars. ...

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• Restoration Based on Adaptively Weighted Regularization
• Application of the Pixon Based Restoration to HST Spectra and Comparison to the
• Pixel-Based CTI Corrections for STIS CCD Data

Astronomy Picture of the Day . ... 1.02.2016 . ... Credit Copyright: ESA , Rosetta , NAVCAM Explanation: Spacecraft Rosetta continues to circle and map Comet Churyumov-Gerasimenko. Crossing the inner Solar System for ten years to reach the vicinity of the comet in 2014, the robotic spacecraft continues to image the unusual double-lobed comet nucleus . ... February 2016 . ... 2013 2014 . ... Publications with keywords: comet - comet nucleus . Publications with words: comet - comet nucleus . ...

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• XWare > APOD
• Journal "Peremennye Zvezdy"
• Астронет > Comet Ikeya Zhang Brightens

... Articles | ... Forums . ... 230 deg . 49 deg . ... 130 deg . ... More Info . ... 210 deg . ... 168 deg . ... 249 deg . ... 195 deg . ... 271 deg . ... 110 deg . ... 338 deg . ... July 15 . 247 deg . ... 224 deg . ... 340 deg . ... July Phoenicids (PHE) . ... August 10 . 341 deg . ... 339 deg . ... 307 deg . ... 334 deg . ... 335 deg . ... 286 deg . ... 327 deg . ... 262 deg . ... 102 deg . ... 153 deg . ... 117 deg . ... December 2 . ... 123 deg . ... 100 deg . ... www.astronomy.net . ...

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... Its perihelion would occur on April 1, 1997, at which point the comet would be only 0.92 astronomical units from the Sun, just within the orbit of Earth. ... Taken in April 1993, the photo showed the comet over 13 astronomical units from the Sun, well beyond the orbit of Saturn. ... Hale, as in Comet Hale-Bopp, has written a book, Everybody's Comet (available through the ASP Catalog) and coordinated an Internet project, "Hale-Bopp: Live in the American Classroom." ... Anatomy of a comet. ...

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• ASP: Education Newswire
• ASP: Guest Observer
• ASP: Contents, July/August 1997

... Table 1: Acceptable temperature difference Invar36 0 .0 5 C А (the CTE was selected as 0.7 for the FEA) Stainless Steel 304 0.002 CА(the CTE was selected as 17.2 for the FEA) Aluminium6061 0.0015 CА(the CTE was selected as 23 for the FEA) (2) Analysis of the temperature gradients of the mount generated by an ambient temperature difference of 0.5 CА on both sides of the mount Invar , S.S. or Al ... Stainless steel material is added to Table 4 and 5 for comparison with Invar. ...

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• UK involvement in future ground-based B-mode and SZ experiments
• A CLEAN-based method for mosaic deconvolution

... 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 . ...

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• Flagging Based on a Template - UVAFLAG
• ATNF Colloquium
• Data Selection

... 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. ...

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• Instance-Based Machine Learning Methods for the Prediction of Stellar
• A Computer-Based Technique for Automatic Description and Classification of
• CAOS Simulation Package 3.0: an IDL-based Tool for Adaptive Optics Systems

... 2014 July 21 . Spacecraft Rosetta Shows Comet has Two Components . Image Credit: ESA / Rosetta /MPS for OSIRIS Team ; MPS /UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA . Explanation: Why does this comet's nucleus have two components? The surprising discovery that Comet 67P/Churyumov–Gerasimenko has a double nucleus came late last week as ESA 's robotic interplanetary spacecraft Rosetta continued its approach toward the ancient comet's core. ... About APOD | ...

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• APOD: December 19, 1996 - Comet Hale-Bopp Inbound
• APOD: 2002 March 7 - Comet Ikeya-Zhang Brightens
• APOD: 2004 July 21 - A Shadow on the Rings of Saturn

... Feeding the Monster: Gas Caught in its Death Spiral into a Massive Black Hole . ... Stromlo Professor Mike Dopita have used the Hubble Space Telescope to discover how a massive Black Hole in a nearby galaxy feeds itself. ... Earlier Hubble Telescope data obtained by another team member, Professor Holland Ford of Johns Hopkins University in Baltimore, Maryland, had found a disk of gas rushing around the Black Hole at a speed of 500 kilometers a second. ...

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• University Problem Based Learning Exercises for Teaching Astronomy and Physics
• Marc White - Astrophysicist - The Australian National University
• Designated Observatory Application

Astronotes Armagh Planetarium's Stellar Blog! ... Comets and Asteroids . ... Space Flight . ... August . ... Posted on January 8, 2013 | No Comments This year has started off with perhaps a little more promise than the last, not only did the world not end but a new Mayan calendar has started, mysterious planet [ ] . Continue Reading.. Posted on November 15, 2012 | ... Posted on August 7, 2012 | ... Posted on November 17, 2011 | ... Posted on August 3, 2011 | ... Posted on June 20, 2011 | ...

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• Leonid meteors 2011 | Astronotes
• Perseids 2011: All About the Meteor Shower | Astronotes
• Monthly Sky Notes | Astronotes - Part 6

... IR-Light Emitters & Detectors . Russian High Technologies . ... Infrared detectors and light emitters are key components that are used for applications including radiometry, guidance, gas analysis, medicine etc. ... Devices are operating in spectral range of 1.0-5.0 um and have high efficiency. ... Light Emitters . ... Spectral response of PRX 27.. ... Applications . ... Among the features there are high speed response, high efficiency, wide temperature range. ... IR-Light Emitters and Detectors | ...

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• ADLAB CCD module with Fiber-Optic-Taper
• Selection effects
• The GtkWidget Base Class

This is a copy of a Press Release from E.S.O. The most recent ESO observations of bright Comet Hyakutake have shown rapid changes in the innermost coma, within a few hundred kilometres from the cometary nucleus. This result has only become possible because of the unusual combination of a bright comet being near the Earth, together with the excellent imaging quality of the ESO 3.5-metre New Technology Telescope (NTT). ... Go to the ESO Homepage for Comet Hyakutake . ESO/La Silla | ...

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• ESO - Publications based on ESO Data
• The hidden fires of the Flame Nebula* | ESO
• ESO - Newsletter March 2016

... 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 . ...

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• The AstroStat Slog clustering
• About Tom's Asteroid Flybys Service
• Statistics 310 2005-2006

... Baikonur Cosmodrome Yasny launch base Downloads . ... Following successful completion of the launch campaign at Baikonur cosmodrome, in the course of which ESA s CryoSat-2 was injected into the target orbit on 8 April 2010, ISC Kosmotras is planning to concurrently carry out another two launch campaigns, at Yasny launch Base and Baikonur cosmodrome. ... As the launch day draws closer, ISC Kosmotras will keep on publishing information about the progress of the launch campaign at the Yasny Launch Base...

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• Dnepr LV with THEOS SC Blasts off from Yasny Launch Base.
• KompSat-5 and GSE Arrived at Yasny Launch Base
• Yasny launch base

... Apache HTTP Server Version 2.4 . Apache > HTTP Server > Documentation > Version 2.4 > Virtual Hosts . ... IP-based virtual hosting is a method to apply different directives based on the IP address and port a request is received on. ... As the term IP-based indicates, the server must have a different IP address/port combination for each IP-based virtual host . ... In the terminology of Apache HTTP Server, using a single IP address but multiple TCP ports, is also IP-based virtual hosting. ...

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• research field
• Hubble Observations Shed New Light on Jupiter Collision
• FIRPO Publications

Next: CCD Operation Up: Charge Coupled Devices (CCDs) Previous: Charge Coupled Devices (CCDs) . ... However it is only now that a number of important X-ray astronomical applications of CCDs have reached critical development stages, so that this is an appropriate time to review the application of space-borne CCD instruments to cosmic X-ray astronomy, and highlight the particular concerns which are being addressed for X-ray instruments, as distinct from optical applications. ...

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• Cross References between CCF Components and CAL Functions

... InformChaos Lab took part in CeBIT-2015 (Hannover, Germany) with "Active Ultra Wideband Wireless Networks". ... Lev Kuzmin received Dr.Sci. degree for his thesis "Wireless information transmission over UWB chaotic carrier" from IRE RAS. ... Artem Nikishov received Ph.D. degree from the Moscow Institute of Physics and Technology for the thesis "Generation of microwave chaotic oscillations in self-oscillating systems with several active elements". ... Our Products page is renewed. ... News | ...

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• Research Activities of InformChaos Lab.
• High dimensional RC – oscillators of chaos - NOLTA-2001
• Lab 234 - SQUID amplifier

... Contacts: Evgeny A. Loupian, Dr. Sci., e-mail: evgeny@smis.iki.rssi.ru Sergey A. Bartalev, Dr. Sci., e-mail: bartalev@smis.iki.rssi.ru Web interface for burnt area mapping using Landsat data Stellar Tracker In 2013 IKI RAN together with the NPK "Electrooptics" completed the phase of the five-year research on studying the ways to build a stellar inertial navigation system (SINS) for aviation applications. ... Fig. 1 shows the SINS layout created on the basis of the astronomical camera. ... Fig.1. ...

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• Satellite-based fire monitoring network in Northern Eurasia: Methods, Data
• INTERBALL Auroral probe (INTERBALL 2) post-flight orbital elements collection
• Main research and development work completed in 2012 and ready for