... Stellar Evolution is driven entirely by the never ending battle between Pressure and Gravity . As imbalances are reached, the star is driven to find a new Energy source. ... Pressure and gravitational forces are equal, the star is stable and its core is sufficiently hot to fuse Hydrogen into Helium More about main sequence stars . ... The luminosity generated by the core fusion of Helium into Carbon is far greater than the shell luminosity associated with the fusion of Hydrogen into Helium. ...

... R. E. Jackson . ... H.-M. Adorf . ... D. C. Wells . ... AstroWeb is a World Wide Web (WWW) interface to a collection of Internet accessible resources aimed at the astronomical community. ... The goal of AstroWeb is to be the most complete, up to date, and useful listing of Internet accessible astronomical resources available anywhere. ... Jackson, Wells, and Adorf noticed that they and others had created largely overlapping lists of Astronomical resources. ...

... Phone : (551) 7706147 . Fax : (551) 7706146 . ... Cumberland, Rhode Island 02864-5361 United States . ... Coolwell Co Inc . ... Fairfield, New Jersey 07004-3221 United States . ... San Diego, California 92126-4850 United States . ... Rockaway, New Jersey 07866 United States . ... Bozeman, Montana 59771 United States . ... Chelmsford, Massachusetts 01824 United States . ... 5645-E General Washington Dr. Alexandria, Virginia 22312 United States . ... Santa Clara, California 95054 United States . ...

... All the GUI visualisation tools define a number of resources which control the appearance and functionality of the tools. ... ZoomPolicy.fixAspect this controls whether the aspect ratio will be fixed ( True ) or not ( False ) . ... AnimateControl.transient as above but specifically only for the AnimateControl widget (section 2.3 ) . ... Filepopup*dotsToggle.state control whether ( True ) or not ( False ) hidden files and directories are shown by default in the Filepopup widget (section 2.1 ) . ...

... Home . ... Data . ... Calibration . ... Data Analysis . ... The Photometry with the WFPC2 paper details the various methods for performing photometric measurements with the WFPC2. ... The WFPC2 Photometry Cookbook provides examples of performing various types of photometry on WFPC2 data. ... The WFPC2 Photometry directory contains an STSDAS demo for performing aperture photometry with the WFPC2. ... The Guide to WFPC2 SYNPHOT Tables describes the use of the STSDAS task SYNPHOT for WFPC2 photometry. ...

... International English . ... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Survey Telescopes . ... ESO Science Newsletter . ... ESO 3.6-metre telescope . ... Exhibitions . ... Astronomy Communication Resources . ... Human Resources . ... This is the panel 2 of a set of two panels in English. ... The ESO font "Neue Helvetica Com" used on the exhibition panels has been replaced in this package with the free font "Arial". ...

Java doesn't really offer the computer industry anything that they couldn't already get with a sharp stick in the eye." ... The link takes you to some information and loosely organized software. ... I own a Casio QV-300 digital camera, which has been both useful and annoying. ... I have my own quicker reference , which I wrote because I got tired of not remembering things, and because people kept asking me if I knew of a good quick reference. ... Why Break Up Microsoft? ... Fine's Home . ...

A Beginner?s Guide to HTML (and much more.. ... From a helpful glossary to loads of examples, your first primer. Extensions to HTML 2.0 . Netscape Navigator supports many standard extensions to HTML, including background patterns, tables , and dynamic document updating. ... A good hotlist of HTML resources around the Web. Examples, style guides, Netiquette, and more. Composing HTML 4.0 Compliant Documents . ... Cascading Style Sheet . ... Javascript links . ... What?s HTML . ...

... a) As source material for the high-school or college curriculum, especially in physics. astronomy and their history. (b) As a source of supplemental projects by high school students or by undergraduates. (c) As material for independent studies, In particular by motivated students who seek to know more about space . ... Those wishing to look up specific topics are advised to use the index file, accessible from the end of any "Exploration" file. ... files not listed and at other resource material. ...

... a) As source material for the high-school or college curriculum, especially in physics. astronomy and their history. (b) As a source of supplemental projects by high school students or by undergraduates. (c) As material for independent studies, In particular by motivated students who seek to know more about space . ... Those wishing to look up specific topics are advised to use the index file, accessible from the end of any "Exploration" file. ... files not listed and at other resource material. ...

... The firmware (built-in software) in the NexStar 8 GPS and 11 GPS scopes is designed to be updated by downloading a file from Celestron and uploading it from your PC to your scope.  ... To upload the firmware, you need a cable to connect from the serial port on your computer to the PC port on the base of the scope.  The PC port on the base of the scope is a standard RJ-45, so it is fairly easy to build a cable using a flat RJ-45 cable and a DB-9 (female) to RJ-45 adapter.  ...

... Contact John Barentine (primary) or your Observing Specialists (secondary) for additional information. Contact Jack Dembicky for web page errors, corrections, ommisions, or additions. Last updated 14 July 2003 by JMD . Last link checked 14 July 2003 by JMD . The following are offered as primary near-infrared spectrophotometric standard stars ( Bohlin, Dickinson and Calzetti, AJ 122, 2118 (2001) ): . ... RA 2000.0 . ... ARNICA Near-Infrared Standard Stars from Lick Observatory . ...

... The New 1997 IEEE Standards Products Catalog features the complete listing of standards publica-tions and services IEEE Standards offers, along with the information you need to place your order. ... Books and Other Products on Standards - contains a detailed listing of informative print and electronic publications relevant to standards and their implementation in areas of electrical engineering, electronics and computer technology. ... IEEE Standards Products Listing 22 . ... Power Electronics 41 . ...

... Visited 5572 times - Selected 51 months ago . ... Visited 6948 times - Selected 51 months ago . ... Visited 4688 times - Selected 51 months ago . ... Visited 7791 times - Selected 51 months ago . ... Visited 9271 times - Selected 51 months ago . ... Visited 7887 times - Selected 51 months ago . ... Visited 4431 times - Selected 51 months ago . ... An online resource for building customized observing lists based on a database with over 10,000 deep sky objects. http://www.virtualcolony.com/sac/ . ...

home education > resources . ... Education from Mercury . ... Selected Topical Bibliographies . Astronomy Education Bibliography . ... Astronomical Pseudo-Science . ... Foothill College the Astronomical Society of the Pacific) . ... Sletteback, A. Jettner, F. "Proceedings of the Conference on Education in Astronomy, August 1969" in Bulletin of the American Astronomical Society, vol. 2, p. 254 (1970). ... Accompanied, later in the same book, by a "Catalog of National Astronomy Education Projects".) ...

... every new catalog of objects has to be contained in the UNIX directory having the same name as the catalog of objects; . ... the programs for local operations (programs of low level) with the catalog of objects are also in the same directory; . brief characteristics and names of the programs and file with the description of the catalog are stored in the file cats_descr ; . ... All astronomical catalogs have a different format and list different observables. ...

... Astrophysics Group . ... Optical Interferometry . OIFITS: A Data Exchange Standard for Optical (Visible/IR) Interferometry . ... OIFITS is a standard for exchanging calibrated, time-averaged data from astronomical optical interferometers , based on the FITS Standard (OIFITS is a registered FITS convention ). ... The OIFITS standard is used in the biennial optical interferometry Imaging Beauty Contests: . ... A data exchange standard for optical (visible/IR) interferometry. ...

... Does it have to be a constant-flux source? ... Source added during later "Forum" discussion. ... The various missions represented at the discussion identified their usage of these sources as follows: XMM : RXJ1856 1E0102 Crab N132D GD153 Chandra : RXJ1856 1E0102 CAS A G21.5 Suzaku : RXJ1856 1E0102 CAS A Crab RXTE : CAS A Crab Swift : RXJ1856 1E0102 CAS A Crab INTEGRAL : CAS A Crab LABORATORY ABSOLUTE STANDARDS ------------------------------- Considering the resort, in other...

Trace: volinks . start : volinks . ... SAI VO Projects . ... VOLinks . ... Help on Wiki search . ... IVOA - International Virtual Observatory Alliance . ... Spectral Data Model . ... VO Services , A list of Webservices . CDS , CDS Webservices , CDS XML Webservices (Name Resolver !) PLASTIC - PLatform for AStronomical Tool InterConnection is a communication protocol for client-side virtual observatory tools. ... Q3C - Indexing the sky with PostgreSQL, download from sourceforge. ... SAI VO | ...

... Tonight's Sky . ... 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 . ... January 2006 resources . FROM THE January 2006 ISSUE . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...