... Deriving the sine or cosine of an arbitrary angle takes a bit more math than is covered here. ... Note first of all that a right-angled triangle contains two angles. ... Because the side opposite to A is the one adjacent to (90њ- A), it follows that the sine of one angle is the cosine of the other, and vice versa: . ... Consider the triangle PQR (drawing) with all three angles equal to 60њ. ... If we want the angle A to grow in equal steps of 15 o , we still need the sine and cosine of 15њ and 75њ. ...

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• The Theorem of Pythagoras
• Newton's Second Law--Lesson Plan #27

Deriving the sine or cosine of an arbitrary angle takes a bit more math than is covered here. ... Note first of all that a right-angled triangle contains two angles. ... Because the side opposite to A is the one adjacent to (90њ- A), it follows that the sine of one angle is the cosine of the other, and vice versa: . ... Consider the triangle PQR (drawing) with all three angles equal to 60њ. ... If we want the angle A to grow in equal steps of 15 o , we still need the sine and cosine of 15њ and 75њ. ...

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• The Theorem of Pythagoras
• DIGITAL WDC EXCHANGE FORMAT FOR OBSERVATORY 1.0 MINUTE VALUES

This module provides for documents with Server Side Includes (SSI). ... Any document with handler of "server-parsed" will be parsed by this module, if the Includes option is set. If documents containing server-side include directives are given the extension .shtml, the following directives will make Apache parse them and assign the resulting document the mime type of text/html : AddType text/html .shtml AddHandler server-parsed .shtml The following directive must be given for ... cgi . ...

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• Apache module mod_setenvif
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... p12mProg program design . p12mProg commands . mode we use to run the p12m controller . ... The p12mProg is the AO control program for the 12meter telescope. ... Send commands to the 12m controller over ethernet (using some modbus over ethernet routines) . ... turn on,off, set modes, track objects . ... ephmFileNm: name of ephemeris file that was loaded . ... For more info on ephemeris tracking, see : pnt ephm command for 305 meter . ... The p12m controller settings used by the p12mProg are: . ...

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• CIMA Source Catalogs
• software_downloads
• vxWorksPrograms

... GE. ) lesser_eq ( = 256) { char errMsg[100]; gParse.status = PARSE_SYNTAX_ERR; strcpy (errMsg, Bit string exceeds maximum length: ' ); strncat(errMsg, ( yytext [0]), 20); strcat (errMsg, ...' ); ffpmsg (errMsg); len = 0; } else { while ( yytext [ len ] == ' ') len --; len = len - 1; strncpy(tmpstring, [1], len ); } tmpstring[ len ] = '\0'; bitstring [0] = '\0'; len = 0; while ( tmpstring[ ...

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• http://www.astro.louisville.edu/software/xmtel/archive/xmtel-3.1/docs/nexstar/NewNexStarGPSCommands.doc
• http://www.astro.louisville.edu/software/sbig/archive/xmccd-4.1/xmccd-4.1e/libcfitsio/libcfitsio/eval.l
• Macro (ImageJ API)

Stellarium 0.12.3 . ... Classes . ... ClassљList . ... SphericalRegionP Class Reference . ... SphericalRegionP (const SphericalRegionP &other) . ... Create a SphericalRegion from the given input JSON stream. ... ra,dec], [ra,dec], [ra,dec], [ra,dec]] A list of points connected by great circles with the last point connected to the first one. ... a valid QVariantMap which can be created e.g. from parsing a JSON file with the StelJsonParser class. static void SphericalRegionP::serializeToJson . ...

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• Stellarium: Coding Style Conventions in Stellarium
• Stellarium: Plugins
• Stellarium: Member List

Software Development: ST-ECF IRAF Package : Installation instructions . ST-ECF quit 2) Create a directory to contain the STECF external package files. ... 3) Log in as IRAF and edit the extern.pkg file in the hlib directory to define the package to the CL. From the IRAF account, outside the CL, you can move to this directory with the command: % cd $hlib Define the environment variable stecf to be the pathname to the stecf root directory. ... Maintained by Richard Hook Richard.Hook@eso.org ...

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• SLITLESS (Oct97) --- ST_ECF --- SLITLESS (Oct97)
• TRAXY (V0.4) --- Dec99 --- TRAXY (V0.4)
• TRANBACK (V0.2) --- Dec99 --- TRANBACK (V0.2)

Astronomy Discussion Forums . ... Need All Claims Be Tentative? ... Here is an issue: does a particular representation correctly match the pattern it is claimed to represent went viewed by method 'x', within the limits of precision given by the definitions of the original pattern, the representation, and the method of viewing (x)? ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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• Teleportation - an Astronomy Net Gravity Forum Message
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• Brilliant! Thanks - an Astronomy Net Blackholes2 Forum Message

Next: Silicate minerals Up: A Database of Optical Previous: Database of Optical Properties . ... If necessary, data have been determined for the different crystallographic axes. ... In the following we give some examples of the data and their possible applications. Table: Summary of data measured in the Jena laboratory, which are currently available from the JPDOC. compound . ... amorph. ... Next: Silicate minerals Up: A Database of Optical Previous: Database of Optical Properties root 2003-03-06 ...

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• Database of Optical Constants -- Level: welcome
• Database of Optical Properties -- Level: subpage
• Model realization and some results

The nasa.gov site requires that JavaScripts be enabled in your browser. ... Contact NASA . ... The following are astronauts who are employed at NASA. Astronaut assignments and category definitions (e.g., "active" astronauts, "management" astronauts) are contained in a separate Flight Operations Directorate (FOD) policy letter. Astronaut . ... Acaba, Joseph M. 2004 . ... Aunon, Serena M. 2009 . ... Barratt, Michael R. 2000 . ... Burbank, Daniel C. 1996 . ... Cassada, Josh A. 2013 . ... 1998 . ...

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• Astronaut Bio: Mark C. Lee 10/2006
• Astronaut Bio: William Anders
• Astronaut Bio: John E. Blaha (05/2008)

... This program was created for correlating chosen regions in the series of fts images. ... Chosen regions' . ... In this section the program counts the integral for each region of the grid for each image. ... As a matter of fact, the integral is total brightness of the region and it is counted by 'int_tabulated' IDL function. ... In addition, the program will show the count of the regions which correlate with the corresponding region (the brighter region means the bigger count) and its contour. ...

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• Manpage of FITSHDR

All teams have to inform the Olympic Advisory Committee (OAC) and the Local Organizing Committee (LOC) about their participation not later than the dates determined by the Acting Statutes/Regulations on the International Astronomy Olympiad . ... For the XIII IAO the procedure of the informing is the following: . ... The questionnaire is analogous to one of the last year . ... Family name(s) [full name expanding initials as in Passport] . ... To write all family names (as in passport). ...

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• XII International Astronomy Olympiad: Personal data questionnaire
• International Astronomy Olympiad: Form for the short report of National
• BRIZ: a vizualization program for Brillouin zone ? Fermi sphere

... This will be an introductory course on Artin $L$-functions (no prerequisites assumed). After reviewing basic theory of Galois representations, we will define Artin $L$-functions, which is the non-abelian generalization of Hecke $L$-functions, and study the elementary properties of them. ... This conjecture can be viewed as the non-abelian generalization of the classical analytic class number formula. ... Finiteness of the ideal class group $\text{Cl}(F)$, class number $h_F$ of $F$. ...

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• Conference Zeta Functions
• IUM general seminar (Fall 2004)

... Activity 3: Measuring the Position of the Sun in the Sky . Purpose: To give students the opportunity to measure the position of the Sun in the sky using simple tools and methods. ... Alternatively, you may have students devise their own methods of relative measurement and apply them to measuring the position of the Sun in the sky. ... Rangi is the sky, and when the Sun is near Rangi's head it is summer in New Zealand. ... Read the Maori story to students. ... back to Teachers' Newsletter Main Page ...

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• ASP: The New and Improved Hubble Space Telescope
• ASP's 119th Annual Meeting - Conference Proceedings
• Astronomical Society

... 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 . ...

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... The nodes defined by the specified region and lattice spacing will be set equal to one of three possible values depending on whether the node is outside, on the polygon perimeter, or inside the polygon. ... The xy-files simply represent data point locations and the mask is set to the inside or outside value depending on whether a node is within a maximum distance from the nearest data point. ... Default is grid registration]. ... S Set nodes depending on their distance from the nearest data point. ...

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• http://xray.sai.msu.ru/~ivan/gmt/man/triangulate.html
• http://xray.sai.msu.ru/~ivan/gmt/man/grdedit.html
• http://xray.sai.msu.ru/~ivan/gmt/man/blockmean.html

Next: Navigation Pre-Observation Products . ... SRT (Space Radio Telescope) Schedule (SRS) File . ... What: GOCG generates the Space Radio Telescope (SRT) schedule file, or SRS file, from current GSTS file. The SRS file has more precise time stamps than long-term schedules, and also designates which GTS will be used when. ... The SRS file also serves as the antenna pointing schedule file, as it describes the planned orientation of the spacecraft (and solar panels) as a function of time. ...

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• Description of the RadioAstron project, english version

Astronomy Picture of the Day . ... 29.12.1999 . ... The first extra-solar star system was discovered orbiting a pulsar in 1991. Slight changes in the precise arrival times of the pulses from the central small dense neutron star gave evidence of orbiting planets . ... As the decade comes to a close, over two dozen planetary star systems have been identified, one recently confirmed by the detection of a slight eclipse by the planet itself. ... NASA Web Site Statements, Warnings, and Disclaimers . ...

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• Астронет > The Decade that Defined Star System
• Journal "Peremennye Zvezdy"
• Spiral Galaxy M83

There are six possible ways of object description: . a) by number(s) . ... d) by list . e) by orbital elements . ... They should be introduced as year, month, day with tenth (e.g. 20021104.1). d) Computations are performed for all objects listed in the file whose path and name should be introduced into assigned data field. ... On pressing Edit file button user has a possibility to look through the list of object elements or their coordinates and velocities to add or to change it. ...

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• Information for Authors of Articles
• AY2008 (preface)
• AY2011 (preface)

... 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. ...

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• Phil Plait's Bad Astronomy: Bad TV