... 2006 March 29 . Green and Black Aurora Over Norway . ... Explanation: What causes gaps between aurora curtains? ... Research using data from four Cluster spacecraft orbiting the Earth has likely found the secret: auroral gaps, sometimes knows as black auroras , are actually anti-auroras. ... Pictured above , a series of well-defined auroral gaps is seen dividing green aurora curtains high above Harstad , Norway , earlier this month. ... About APOD | ...

... Auroral Currents . ... 25c. Space tether . ... Aurora from Space . ... But the best view is still from space. ... The Canadian scientific satellite Isis-2 (1971) carried an auroral imaging camera and discovered the diffuse aurora, a broad ribbon around the auroral oval, too spread-out to be noticed from the ground. ... Currently, NASA's Polar (1996) collects images of the polar aurora using three cameras--in visible light (sometimes as frequently as 12 seconds apart), in ultra-violet and in x-rays. ...

Next: Imaging Polarimetry with NICMOS Up: NICMOS Data Calibration and Previous: The Photometric Performance of . ... NICMOSlook and Calnic C . ... Extracting spectra from a large number of NICMOS grism images requires a convenient interactive tool which allows a user to manipulate direct/grism image pairs. ... NICMOSlook and Calnic-C are two programs that were designed to take advantage of the fact that the NICMOS grism mode typically consists of taking both a direct and a grism image. ...

. Pulkovo Observatory of Russian Academy of Sciences is situated . near Saint-Petersburg. It was founded in 1839. 196140, Saint-Petersburg, Pulkovskoye chaussee 65/1 . English version . Russian version . This page has been accessed times since May 1, 1999.

These images from NASA's Hubble Space Telescope show four examples of interacting galaxies. The galaxies, beginning at far left, are shown at various stages of the merger process. The top row displays merging galaxies found in different regions of a large survey known as the All-Wavelength Extended Groth Strip International Survey (AEGIS). ... Credit: NASA/ESA/J. Lotz (STScI)/M. Davis (University of California, Berkeley)/A. Koekemoer (STScI) ...

Logon . ... Events . ... Display upcoming events only . ... Event . ... Apr 14, 2016 . From the Great Wall to the Great Collider: China and the Quest to Uncover the Inner Workings of the Universe . Details.. Jun 16, 2016 . ... Click on the calendar row to view more details . Logon to view additional events . Logon to post a follow-up comment or review comments from others . ... Calendar . ... Astro Events . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

General Information . ... We'd like to announce the forthcoming IAU Conference: . ... A conference organized by Sternberg Astronomical institute (Moscow, Russia) and Working group "Site-testing Instruments" of the International Astronomical Union on various aspects of site-testing techniques, approaches and results. RUSSIA, Kislovodsk (Caucasus Mineral Waters region), 4-9 October 2010. ... Victor Kornilov, Sternberg Astronomical Institute . ... 3-4 October: Registration and accommodation . ...

Description and Technical Details . In 1980s two medium-size horizontal solar telescopes 50/35000 cm with large spectrographs Czerny-Turner made by Carl Zeiss Jena were installed in the Ondњejov observatory. The Czerny-Turner-spectrographs in the Ondњejov observatory called HSFA1 and HSFA2 according to the German name Horizontal-Sonnen-Forschungs-Anlage ("horizontal device for solar research") have been explored for more than two decades. ... Diffraction grating - Richardson, Spectra-Physics . ...

... Meade Series 4000 Nebular Filters incorporate the very latest in interference coatings technology. ... Technical Basis of the Meade Broadband Nebular Filter: As shown in the transmission graph below, the Meade Broadband Nebular Filter strongly rejects the light of sodium- and mercury-vapor lights as well as natural airglow and auroral emissions. ... Meade Series 4000 Narrowband Nebular Filters . ... Meade Series 4000 Oxygen-III Nebular Filters . ... Meade Series 4000 Photo-Visual Color Filters . ...

Spring 2000 at Osborn Elementary School here in Ashland, Ohio. We had set up a display and a scope with a solar filter and talked to . 3 or 4 groups of kids and parents about astronomy. We even gave them a slide show! ... This is ONE of the displays we set up . ... We have a type 2 full aperture filter. Me attempting to show the sun to the kids (the trees were in the way). ...

... MAO main . ... International Max Planck Research School on Astrophysics -- Call for applications . ... Тема: International Max Planck Research School on Astrophysics -- Call for applications . Call for applications - please forward to potential students *** Dear Colleague, The International Max Planck Research School on Astrophysics (IMPRS) in Garching/Munich (Bavaria, Germany) is soliciting applications for its PhD program. ... International Max Planck Research School on Astrophysics . ...

Software Forum Message . ... Astronomy Software Discussion | ... Detailed Moon Map For HandMap And Handheld PCs (Palm Or Pocket) . ... Detailed Moon Map for HandMap . The first vectorised Moon Map for Pocket PC and Palm devices. ... Palm site: http://www.handmap.net/Palm/Moon-Map.htm . ... Pocket PC site: http://www.handmap.net/WinCE/Moon-Map-W.htm . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Shuang Ma 7016 2.4G 3CH Waterproof Racing Boat Ready to Run with Display Rack . Type: RC Boats . ... Boat/Ship Power: Built-in rechargeable battery . ... RC Boats . ... Package Contents: 1 x Display Rack, 1 x Racing Boat, 1 x Transmitter, 1 x Charger, 1 x English User Manual, 1 x 9V Battery, 1 x 7.4V 1300mA Battery . English Phrasal Verbs in Use Intermediate is a vocabulary book for good intermediate level learners and above. ...

... In brief: the frequency-dependent radiative transfer equation is solved for a dust under assumption of spherically-symmetric geometry for its distribution taking into account particle size distribution and quantum heating effects for the very small dust particles. ... Table: Model parameters for IRAS04296+3429. ... parameter . ... hot dust shell) . ... The best fit to the spectral energy distribution of IRAS04296 is shown by heavy solid line (see Table2 for details concerning parameters of the model...

USING THE CORRELATION BETWEEN ISGRI SURVEY RESULTS AND OTHER CATALOGUES TO AID SOURCE IDENTIFICATION John B. Stephen, A. Malizia and L. Bassani IASF-INAF, Via P. Gobetti 101, 40129 Bologna, ITALY, E-mail: stephen@iasfbo.inaf.it ABSTRACT In order to help in the identification of INTEGRAL/ISGRI sources, we have developed a software package which allows a rapid and detailed cross-correlation to be performed between various source catalogues. ... We show below some preliminary results from this analysis. ...

To run a browser from Urania at your computer, . you must give the following commands (in Linux?): . xhost +urania . ssh urania (or rlogin urania?) . (then give your login and password at Urania . that you must get from our system administrators) . export DISPLAY=your_PC:0 . (where your_PC is the name of your computer, . e.g. ursa, theor1, etc) . netscape . ================================== . 17/09/00, V.I.

National Aeronautics and Space Administration . ... John M. Grunsfeld (Ph.D.) . NASA ASTRONAUT (FORMER) . ... A veteran of five spaceflights, STS-67 (1995), STS-81 (1997), STS-103 (1999) STS-109 (2002) and STS-125 (2009), Dr. Grunsfeld has logged more than 58 days in space, including 58 hours and 30 minutes of EVA in 8 spacewalks. ... He returned to NASA in January 2012 to serve as the Associate Administrator of the Science Mission Directorate at the agency's headquarters in Washington. ...

NAME apachectl - Apache HTTP server control interface SYNOPSIS apachectl command [.. DESCRIPTION apachectl is a front end to the Apache HyperText Transfer Protocol (HTTP) server. It is designed to help the adminis- trator control the functioning of the Apache httpd daemon. NOTE: If your Apache installation uses non-standard paths, you will need to edit the apachectl script to set the appropriate paths to your PID file and your httpd binary. See the comments in the script for details. ...

... Iowa Robotic Telescope | ... Talon is based on OCAAS, a software suite developed by software engineer Elwood Downey ( Clear Sky Institute ) for use at the University of Iowa ?s first remote facility (the ATF, or Automated Telescope Facility). ... XObservatory : Telescope Control Interface . ... This program calls upon and coordinates much of the interrelated portions of the Talon architecture, and forms the primary control panel for the telescope, dome, and peripheral systems when used locally. ...

LARGE-SCALE DIMMINGS CAUSED BY CORONAL MASS EJECTIONS AT THE SUN ACCORDING TO SOHO/EIT DATA IN FOUR EUV LINES . I.M. Chertok(1) and V.V. Grechnev(2) . ... PDF file of the paper "Large-Scale Dimmings Caused by Coronal Mass Ejections at the Sun According to SOHO/EIT Data in Four EUV lines" , by I.M. Chertok and V.V. Grechnev, Astronomicheskii Zhurnal (in Russian), Vol. ... 1013-1025, 2003. ... 934-945, 2003. ... 435-438, 2003. ...