... 2000 August 9 . A Solar Filament Lifts Off . Credit: TRACE , NASA . Explanation: Hot gas frequently erupts from the Sun. One such eruption produced the glowing filament pictured above , which was captured on July 19 by the Earth-orbiting TRACE satellite . The filament, although small compared to the overall size of the Sun , measures over 100,000 kilometers in height, so that the entire Earth could easily fit into its outstretched arms. ... About APOD | ... NASA Technical Rep.: ...

Astronomy Picture of the Day . A Solar Filament Lifts Off . ... 9.08.2000 . ... Credit: TRACE , NASA Explanation: Hot gas frequently erupts from the Sun. ... Gas in the filament is funneled by the complex and changing magnetic field of the Sun . After lifting off from the Sun's surface , most of the filamentary gas will eventually fall back. ... August . ... August 2000 . ... 1999 2000 . ... Publications with keywords: Sun - filament . Publications with words: Sun - filament . ...

OptInt PmWiki : Pm Wiki / Troubleshooting . ... Make sure all of the files were updated, in particular pmwiki.php . ... Be sure all of the files in the wikilib.d/ directory were also upgraded. ... Where are the pages? ... On Windows, it may be necessary to use a hex editor to convert LFCR line endings to LF line endings in the local\config.php file. ... I edited config.php , but when I look at my wiki pages, all I see is " Parse error: parse error, unexpected T_VARIABLE in somefile on line number . ...

grdfilter - Filter a . grd file in the Time domain grdfilter input _ file . grd -D flag -F < type >< width > -G output _ file . ... The output . ... grd The file of points to be filtered. D Distance flag tells how grid (x,y) relates to filter width as follows: flag = 0: grid (x,y) same units as width , Cartesian distances. flag = 1: grid (x,y) in degrees, width in kilometers, Cartesian distances. flag = 2: grid (x,y) in degrees, width in km, dx scaled by cos(middle y), Cartesian distances. ...

... File view and tree view . ... Show (expand) directory tree starting from that point (the sign appears near directory name). ... Alternative way is to click on a [+] sign which appears near directory names throughout the archive (it will bring the tree into view from that directory). ... E.g., searching for "nftp" will find "nftp103.zip", "nftp/readme" and so on. ... nftp*" will find all files (NOT directories) which have the characters "nftp" in their names, including "nftp103.zip" and "about.nftp";...

Welcome to K -corrections calculator, simple service allowing one to determine K -corrections of a galaxy, given its redshift and one or more colours. ... K -correction in choose filter.. ... Redshift . Colour choose colour.. Colour value . Calculator . ... calculate spectral energy distributions , K-corrections calculator , GALEX FUV NUV , UKIDSS YJHK , K-corrections of galaxies , spectral based k-corrections , SDSS filter set K-corrections , K correction code IDL , kcorrect IDL C , . ...

... Class . ... Package Hierarchies: . ... ij.plugin.filter. Analyzer (implements ij.measure. ... PlugInFilter ) . ... AVI_Writer (implements ij.plugin.filter. ... BackgroundSubtracter (implements ij.gui. DialogListener , ij.plugin.filter. ExtendedPlugInFilter ) . ... Benchmark (implements ij.plugin.filter. ... Binary (implements ij.gui. ... CalibrationBar (implements ij.plugin.filter. ... Convolver (implements java.awt.event.ActionListener, ij.gui. ... Duplicater (implements ij.plugin.filter. ...

Aristarch is Copernic of Classic World. ... First Aristarch determined the fact for how many times the Sun was father then the Moon and then he compared the Sun and the Moon with the Earth. ... Only the Moon rotates around the Earth. ... Gipparch suggested that the Sun turned around the Earth steady and in circumference but the Earth is displaced according its centre. ... The orbit point in which the Sun is nearer to the Earth Gipparch called perigee and the most remote one he called apogee . ...

... VaST is a software tool for finding variable objects on a series of astronomical images. ... VaST performs object detection and aperture photometry using SExtractor on each image, cross-matches lists of detected stars, performs magnitude calibration with respect to the first (reference) image and constructs a lightcurve for each object. ... VaST FITS image viewer ./pgfv . ... Part I" PZP, vol. ... K. V. Sokolovsky, S. A. Korotkiy; "New Variable Stars Discovered by the NMW Survey" PZP, vol. ...

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

The most up-to-date information related to atmos 3.0 are collected here due to constantly increasing interest to MASS/DIMM processing software... atmos 3.0 is still beta , so the latest version is 2.97.5 (there is also 2.98.x branch which absorbs new features) . ... M' line: . ... free seeing and its relative error . ... dimm seeing and its relative error (if dimm data are present, zeros otherwise) . ... dimm turbulence power and its relative error (if dimm data are present, zeros otherwise) . ...

We have designed the laboratory model of static Fourier spectrometer for onboard usage for spectral study of atmosphere and ionosphere. The gain of model is to simulate onboard FS which will not have any moving elements (all its optical elements will be mounted at fused quartz monolithic construction), to compare experimental results with theoretical estimations and to measure MTF of CCD array. ... This fact connected with low frequency response of CCD array due to small format of it. ...

... Sky Pollution Rejection Filters and What They Reveal About Nebulae . ... Thursday, Jun 14, 2012 at 8:00 PM . Our speaker will demonstrate how filters such as Orion Telescope's Ultrablock filter allow observers to see emission nebulae clearly even when the sky is polluted because of nearby lighting. ... Please join us for a pre-meeting dinner discussion at Changsho, 1712 Mass Ave, Cambridge, MA at 6:00pm before the meeting. ... Jun . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... Tonight's Sky . ... Observing . ... GRB theory questioned . ... The NASA Swift gamma-ray mission makes prompt multi-wavelength observations of gamma-ray bursts and their associated afterglows. ... Swift can turn and observe a gamma-ray burst with its X-ray and optical telescopes in just a few tens of seconds," says David Burrows from Pennsylvania State University, lead investigator for the X-ray telescope on Swift. ... Only registered members of Astronomy.com are allowed to comment on this article. ...

Main . ... About meteorites . ... What to do if you found a meteorite! ... About the laboratory . ... You may have a question: what to do if you found a stone which looks like meteorite. ... According to the Meteorite Nomenclature Committee, in order for a meteorite to be officially registered in the International Meteorite Catalog, 20% by weight of the main mass of the identification sample must be contributed to a qualified scientific organization. ... The Staff of the Laboratory of Meteoritics. ...

LIPSKIY-RODIONOVA' LUNAR ANTIPODES AS PRECURSORS OF A REGULAR WAVE PLANETOLOGY G.G.Kochemasov IGEM of the Russian Academy of Sciences, Moscow, Russia kochem@igem.ru / Fax: (009)(095)230 21 79 The first observations of the lunar far side allowed to compare it with the near side and draw very important conclusions in the very beginning of planetary studies based on spacecrafts. ... Celestial bodies are dichotomic. ... The concept of celestial bodies includes Sun (a star) as one of them. ...

... Contacting and discussing with people sharing your interests, participating in night sky observations with telescopes as well as a large choice of astronomical books, magazines and video-tapes out of our club library. ... The seasons, the seeing ( a clear sky is not always associated to calm , stable air ) and most important how dark your observation site is. ... Therefore a dark site for observing is at least as important for deep sky observation as the diameter of your scope. ...

... To overcome this limitation we propose Cryogenic Phase Locking Loop (CPLL).The CPLL has been developed for phase locking of a Flux-Flow Oscillator (FFO) in the SIR. ... The CPLL operating frequency has been increased from 400 MHz up to 4 GHz to decrease a loop filter delay to 0.5 ns. ... We have realized an integrating loop filter for the CPLL. ... Phase noise of the FFO phase-locked with: "1" ­RT PLL; "2" ­ CPLL without integrating loop filter; "3" - CPLL with integrating loop filter. ...

... The versatile and efficient INVERTOSCOPE? combines the highest optical performance with unsurpassed mechanical quality, and is backed by LOMO's unique lifetime warranty, the most comprehensive in the industry. ... A 15X focusing eyepiece with two interchangeable reticles (a 10mm/100div scale and a 10mm x 10mm/400sq grid) for convenient measuring and counting. ... A set of stage inserts and extension plates to accommodate a variety of sample vessels such as Petri dishes, flasks, microtest plates, etc...

SITE 2010 Comprehensive Characterization of Astronomical Sites Kislovodsk, Russia, 49 October 2010 Conference Summary Marc S. Sarazin*a a European Southern Observatory, Garching, Germany Abstract The main topics discussed during the Site 2010 conference are outlined and the outcome is described. Keywords: Astronomical Site testing, precipitable water vapor, atmospheric turbulence, cloudiness, seeing 1. ... Site surveys for National observatory projects in China, India, and Iran benefit from this. ...