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... Tonight's Sky . ... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Moon . ... The Magazine . ... Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Hayabusa update . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... Tools Show pagesource Old revisions Backlinks Recent Changes Media Manager Sitemap Log In > . ... You are here: start €Ё lbaops €Ё pcfshints . ... VLBI Schedule . ... Observer's Wiki . ... Other VLBI . ... lbaops:pcfshints . ... PCFS time is wrong . PCFS time will not update (complains time is off by greater than 2 weeks) . ... Normally the PCFS synchronizes its time from from the S2 formatter. Typing the command: . ... lbaops/pcfshints.txt €§ Last modified: 2015/12/18 16:39 (external edit) . ...

... PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: Black hole accretion versus star burst episodes: what is the engine of powerful active galaxies? ... Observing with ESO Telescopes . ... ESO-MIDAS . ... ESO Data . ... ESO HST Image Galleries . ... The aim of this research project is to understand the emission mechanism(s) in these active galaxies: . how much power is ultimately due to accretion onto supermassive black holes and how much is due to star formation processes ? ...

... Supermassive Black Holes in Galactic Nuclei: Black Hole Masses and Host Galaxy Properties; Cosmological Evolution of Supermassive Black Holes and Active Galactic Nuclei . Spectroscopy of Active Galactic Nuclei. ... Optical Interferometry: ESO VLT Interferometer and AMBER. ... Go to archive ...

... ID: New Procedure for Production of CCD Bias and Dark Reference Files . ... Finally, on a related note: We have changed the bias monitoring program for STIS in Cycle 8 in that we are now taking ~100 unbinned biases per week in CCDGAIN=1 (plus ~20 in CCDGAIN=4 and 14 in often-used binned modes in CCDGAIN=1) to enable one to create "straightforward" weekly unbinned CCDGAIN=1 bias reference files (thus eliminating the need to update the hot columns and thus the need to run the "weekbias" script). ...

Semiconductor Home > Products > Mixed Signal and Analog > CCD IMAGERS Family > . TC237, 680- X 500-PIXEL CCD IMAGE SENSOR DATA SHEET . ... The TC237 is a frame-transfer, charge-coupled device (CCD) image sensor designed for use in single-chip black and white NTSC TV, computer, and special-purpose applications requiring low cost and small size. ... 680- X 500-PIXEL CCD IMAGE SENSOR DATA SHEET ERRATA FOR SOCS044 (40 KB) . ... TIMING OF TC237 FRAME TRANSFER CCD IMAGE SENSORS (97 KB) (Abstract) . ...

... LWN.net FAQ . ... Read-copy-update (RCU) is a mutual exclusion technique which can operate without locking most of the time. It can yield significant performance benefits when the data to be protected is accessed via a pointer, is read frequently, changed rarely, and references to the structure are not held while a kernel thread sleeps. The core idea behind RCU is that, when the data requires updating, a pointer to a new structure containing the new data can be stored immediately. ...

... Updated 2004 November 23rd . ... Updated 2004 November 15th . October Cooler and Wetter . Updated 2004 November 2nd . ... Updated 2004 October 29th . ... Updated 2004 October 27th . ... Updated 2004 October 26th . ... Updated 2004 October 19th . ... Updated 2004 October 15th . ... Updated 2004 October 13th . ... Updated 2004 October 12th . ... Updated 2004 September 6th . ... Updated 2004 August 24th . ... Updated 2004 March 19th . ... Updated 2004 March 10th . ... Updated 2004 March 4th . ...

UPDATE FROM 03/08/2012: AT THE TIME OF ARRIVAL IN ENVIRONMENT DISTURBANCES OF LARGE SOLAR FLARE 05.03 0230 0409 0643 N17E52L299 X1.1/2B 3.7E-11 429 1 CME AND DEVELOPMENT MODERATE MAGNETIC STORM, IN COMPLEX ACTIVE REGIONS ON SUN AR11429 (N18L299, Sp = 1270 m.v.h. at 7.03) + AR11430 (N19L315, Sp = 200 m.v.h to 7.02) THE TWO LARGE SOLAR FLARES WAS OCCURRENCED 07.03 0000 0024 0349 N17E27L299 3B/X5.4 6.7E-11 429 1 II / 2, IV / 2, ... NEXT WEEK THE SUNSPOT ACTIVITY IS EXPECTED TO BE THE AVERAGE. ...

... Sun images . ... Sun flares . ... Active areas . September : 2008 . ... No sunspots and sunspot groups can be currently observed on the Sun's surface . No H-alpha plages without spots can be currently observed on the Sun's surface . Last updated: September 10, 2008 00:00 UT . ... 1953-2016 Laboratory of X-ray astronomy of the Sun, LPI RAS, Russia . ... 7(499)132-65-96, Fax: +7(499)132-65-97 . ...

spaceweb@oulu.fi - last update: 18 February 1997, 1100 UT (RR) . Black aurora is a lack of auroral emission in a small, well-defined region within an otherwise uniform, diffuse background or within auroras exhibiting a degree of shear behaviour intermediate between that of diffuse and discrete aurora (e.g., Davis, 1978). It appears to be a common feature of the midnight sector during late substorm recovery phase (Trondsen and Cogger, 1997). ... 30 , 371-380, 1978. ... 102 , 363-378, 1997. ...

The tips on this page describe ways how to create special effects, e.g. text logos or general image manipulation tricks. It is not my intention that you use these tips as they are described here, but you should try to alter anything more or less (colors and value amounts), to see what happens to your images and maybe find new ways to produce nice effects. [1] : new image: some black text on white background . 2] : duplicate [1] . 2] : gauss-blur with 15 . ... 1] : new image . ...

The AstroGuide . ... Forums . ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . The "Black Hole" forum is our most popular. This is the place to share information, theories and thoughts about Black Holes. ... Web Site . http://www.astronomy.net/forums/blackholes/ . ... www.astronomy.net . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... A fit is done to the "future" values and then used for the pointing. ... Center and bottom plots show the fit error in mjd and date. 08dec15 (.ps) ( .pdf ) . ... used data downloaded jun12. data from 01oct12-jun13. 01jul12 (.ps) ( .pdf ) . ... data was loaded for 24feb12 thur 30jun12 (then a leap sec will be installed). 19apr11 (.ps) ( .pdf ) . data was loaded for 15apr11 thru 15apr12z and fit. 08feb10 (.ps) ( .pdf ) . data was loaded for 08feb10 thru 04feb11 and fit. 13dec08 (.ps) ( .pdf ) . ...

... Classifying or clustering (or semi supervised learning) spectra is a very challenging problem from collecting statistical-analysis-ready data to reducing the dimensionality without sacrificing complex information in each spectrum. ... Continue reading ?[ ... Category: Algorithms , arXiv , Cross-Cultural , Data Processing , Jargon , Methods , Spectral , Stat | ... Category: Algorithms , arXiv , Astro , Bad AstroStat , Cross-Cultural , Data Processing , Frequentist , Jargon , Methods , Stat | ... ADS ...

ccf-admin@xmm.vilspa.esa.es ccf-admin@xmm.vilspa.esa.es . ... Previous message: [ccf] XMM-Newton calibration update . Next message: [ccf] XMM-Newton calibration update . Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] . We bring your attention to a clarification concerning the recently updated PN response files: http://xmm.vilspa.esa.es/calibration/updates/update-20011218.shtml Best regards, The XMM-Newton Calibration librarian xmmhelp@xmm.vilspa.esa.es . ...

... Spiral Galaxy In Centaurus . ... The lovely Milky Way flows through this large constellation whose celestial wonders also include the closest star to the sun, Alpha Centauri, the largest globular star cluster in our galaxy, Omega Centauri, and the closest active galaxy, Centaurus A. A Lunar Eclipse Over Time . ... During last week's lunar eclipse, our Moon appeared to disappear. ... Until last week, all objects that might be black holes in our Galaxy were part of binary star systems. ...

... Copyrightї1997 Bob Yen (byen@ix.netcom.com) (http://www.comet-track.com/hb/hb.html) . ... Information on Comet Hale-Bopp for the Non-Astronomer Hale-Bopp rotates about twice a day (3/14/97) . ... The Comet Observation Home Page was been selected to receive the Griffith Observatory Star Award for the week of February 2 - 8, 1997 for excellence in promoting astronomy to the public through the World Wide Web. ... Typically, about 1,000 individual users/computers access this page every day. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...