... Bad Astronomy . ... I think I will break from my usual format of Bad Astronomy/ Good Astronomy by saying that the way we define seasons currently is not strictly bad, but I feel (in my opinion!) that it could be better. The definition of when the seasons begin is at the moment of solstice or equinox; that is, winter (in the north) starts on December 22 nd and summer starts on June 22 nd . ... Now imagine breaking up the Sun's 46 degree up-and-down yearly swing into 1 day intervals. ...

... De Magnete . ... More on "De Magnete" . ... A Gilbert Expt. ... Before Gilbert . ... different parts of Gilbert's terrella Of his own experiments, the most important was conducted with a magnetized " terrella " ("little Earth"), a spherical magnet serving as a model for the Earth. ... In addition to studying magnets. ... The last of the 6 "books" into which Gilbert's work is divided deals with the motion of Earth in space and its possible connection to magnetism. ... Magnetism from Gilbert to 1820 ....

... Manual pages are often copyrighted material. ... If these links return an error message, view the page locally instead. cal - display a calendar . ... checknr - check nroff and troff input files; report possible errors . chgrp - change the group ownership of a file . chmod - change the permissions mode of a file . ... comm - display lines in common, and lines not in common, between two sorted lists . compress , uncompress , zcat - compress or expand files, display expanded contents . ...

NIFS was assembled and readied for its first cooldown on Friday August 24 2001. The cryostat contained the cold work surface plate and the radiation shields, but not the spectrograph or the On-Instrument Wavefront Sensor. ... The center of the cold work surface plate reached a minimum temperature of ~ 46.1 K. The getter reached ~ 9.2 K. Both are well below the required final operating temperature. ... Peter Conroy lowering the cold work surface plate into the cryostat. ... Pumping the cryostat. ...

. Web-site news . 07.09.99 . Proceedings of the VIII Russian-Finnish Symposium on Radioastronomy added to the Publications section . 23.08.99 . Staff information updated . 20.08.99 . Search page added . 18.08.99 . To the 160th anniversary of the observatory main page changed . 01.05.99 . Web-site start working .

Previous Editions of the M111: . ... OutReach Training and Program . September Public Night . Welcome all ye weary travelers to a new type of M111 "On Line". ... Back to top.. ... When I logged our last outreach programs I couldn't help but notice that Warren Rupp Observatory is NUMBER FIVE in the worldwide standings in public outreach programs! ... If you'd like to train in astronomy outreach, just contact any of our members and we'll be happy to train you to do public outreach! ...

... You can use the Starlock Utility program to update your Starlock firmware. ... L X800 Telescope with Autostar II handbox Starlock wit h con necting cable Meade #507 con necting cable Meade RS232/USB adapter (if needed) Computer with Starlock Utility program Updated Starlock firmware Installation From the Meade website, download the Starlock firmware update to the computer desktop. ... If you have changed serial ports, click on the "Reset Con nection " button in the utility program. ...

Next: The Portable-CGS4DR Graphical User Interface . ... In order to track changes in the TABLES/STSDAS code, as well as for Quality Assurance and to simplify the code release process, the GNU Revision Control System (RCS) was chosen as the method of revision control. ... A survey of the Revision Control software available led to the choice of the GNU Revision Control System (RCS) as the method of revision control. ... The part of the system that the user sees is the Graphical User Interface. ...

... Corresponding authors will receive an e-mail with a PDF file of paged proof for checking and correction. The file can be read and edited using Adobe Acrobat Reader (version 9 and higher) which can be free downloaded via the Internet ( http://get.adobe.c om/reader/ ). ... You can use text correction tools to make corrections (after selecting the necessary text fragment). ... For users of Adobe Reader 9: . ... to insert text without replacing the existing text, use the "Insert text at cursor" tool. ...

... 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. ...

An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . THE CHANGING UNIVERSE: EVOLUTION HAPPENS! ... Luckily nature has left a wide range of clues about evolution for us - at every scale of the universe - which we can uncover with some good astronomical detective work. a) Changes in the Solar System . ... An Ancient Universe - Table of Contents . ... The Universe: An Overview | ... The Changing Universe - Changes in the Solar System - Changes in Stars - Changes in the Universe | ...

This is a new popup window - close it when you are done . ... A replacement focuser(below) for the Schupman is almost ready for installation. ... Could be installed and tested soon. UPDATE: The new focuser has been installed and works fine. This focuser is capable of both MANUAL MOTOR DRIVEN operation. Please be careful when changing the mode of operation. Better yet,,,leave it in motor driven operation. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

There is an obligation of team leaders to translate these rules and regulations to native language of participants in advance. Starting since 2004 this translation has to be done in written form as an obligatory part of application to the International Astronomy Olympiad.) ... Don't write the conditions of problem in rough copy or clean copy. ... All additional information for participants to be done in both official languages of the Olympiad: in Russian and in English. ... Rough copy. ...

fitshdr_edit - FITS-file headers interactive editor fitshdr_edit [options] FITSfile_name . fitshdr_edit utility allows to modify FITS headers' lines interactively (FITS MultiExtentionsFiles included). fitshdr_edit is just simple shell script around fitshdr utility. ... It means, that You can't remove line from header! ... 560:CRDELT2 = 21.0 / this is example 640: 720:HISTORY header No.0: 1st history line 123456789012345678901234567 880:COMMENT Sat Sep 25 21:17:34 CEST 2004 / by fitshdr_edit . ...

JSC Celebrates 40 Years of Human Space Flight . America's Nerve Center for Mission Operations . ... An overall view from the rear shows activity in the new Mission Control Center, opened for operation and dedicated during the STS-70 space shuttle mission. ... Shuttle design and construction involved close support from the mission operations team. ... The Spaceflight Control Center in Korolev is where the Russian flight controllers support operations of the Russian elements of the space station. ...

... Changed format option parsing routine in bp-p-options. added opt_reverseauthor to bp-refer, and added options parsing. 0.1.1 perl5/ad425.ref->ad425.bib in 25.3 seconds perl5/timetest.pl 2.31s total, 1.03, 1.01, 3.52 Added p-output.pl. ... No noticible change in running time, which means the debugging statements aren't slowing us down enough to worry about dropping them. 0.0.11 perl5/ad425.ref->ad425.bib in 22.7 seconds perl5/timetest.pl 1.98 total, 1.02, 1.01, 3.39 Added format registration. ...

... ClassљList . ... Satellites Class Reference . ... displayMessage (const QString &message, const QString hexColor="#999999") . ... virtual voidљ . ... Add this group to the global list. virtual bool Satellites::configureGui . ... Saves the current list of update URLs to the configuration file. virtual QList< StelObjectP > Satellites::searchAround . ... the number of satellites that were not found in the update source(s) (and were removed, if autoRemoveEnabled is set). virtual void Satellites::update ...

MINUTES of the RadioAstron Teleconference on December 13, 2011 Yu.Yu. ... IOC status update M. Popov informed the participants on the current IOC results. ... Kovalev added: we continue to observe pulsars and spectral line sources in radiointerferometer mode but only with spacecraft and we are also going to observing pulsars soon with space-ground baselines. ... Kovalev: It is fringe-fitting result. ... In RAFS05 we replace it with K-band observing (maser source Ori KL ­ spectral lines ~100000Jy). ...

The AstroGuide . ... AstroGuide | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . Manufacturer of many optical items for building your own reflector or refractor telescope including cemented and airspaced achromat grinding kits, mirror grinding kits and accessories. ... Listed Since November 14, 2003 . ... 714) 484-8100 . ... 714) 484-8181 . Web Site . ... Web . www.astronomy.net . ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

NOTE: The storm sudden commencement data file was updated on 18 Feb 1998. o Revised data for 1968-1975 were taken from IAGA Bulletin No. ... Indices aa and storm sudden commencements"; see also IAGA Bulletin 39: " Supplementary Geomagnetic Data 1957-1975", including a new list of ssc's 1968-1975). ... From the monthly reports of Rapid Variations prepared by 43 magnetic observatories (see list page 121), a combined list of all events is compiled. ...