... Triangles come in many shapes. ... Subtracting 90њ from both sides . ... a / c = sin A -- "the sine (or sinus) of A" . b / c = cos A -- "the cosine (or cosinus) of A" . ... This statement is usually written with the square written sin 2 A (not sinA 2 , which might be taken to mean the sine of an angle equal to A 2 ): . ... The length of side a then approaches that of c , while the length of b becomes very small: therefore as A approaches 90њ, sinA approaches 1 and cosA approaches zero. ...

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• Que signifient sinus et cosinus
• Deriving Sines and Cosines
• Calculs de certains sinus et cosinus

Triangles come in many shapes. ... Subtracting 90њ from both sides . ... a / c = sin A -- "the sine (or sinus) of A" . b / c = cos A -- "the cosine (or cosinus) of A" . ... This statement is usually written with the square written sin 2 A (not sinA 2 , which might be taken to mean the sine of an angle equal to A 2 ): . ... The length of side a then approaches that of c , while the length of b becomes very small: therefore as A approaches 90њ, sinA approaches 1 and cosA approaches zero. ...

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• Deriving Sines and Cosines
• The Sine of the Sum of Angles

Next: Identification loop Up: Wavelength Calibration Previous: The Echelle Relation . As a consequence of the cross-disperser dispersion relation, a given line repeated in two overlapped regions of the spectrum must be found at the same y position if spectrum and detector are perfectly aligned. ... The above condition provides a geometrical way to estimate the angle, as: , with the difference in y position of the two occurences of the pairs and the difference of their x positions. ...

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• HyperLEDA documentation : compilation of position angles (a103)

Analysis of the WFPC2 saturated star images indicate that the large angle scattering (>3" from a star) is significantly higher than expected. ... The first set was from the SMOV Ghost Check proposal 5615, in which 100-second images of Cas (V=2.7) were obtained at the center of each chip in F502N. The second set was a series of 6-second exposures of Vega (V=0.0) centered on WF2 through F410M (WFPC2 GTO proposal 5205). ... The source of the WFPC2 scattering may be the CCDs. ...

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• Sun Angle
• CSPICE Routines: AXISAR_C
• New High Contrast Coronagraphic locations for STIS provide inner working angles

... Meta Index / Home Page / Parameter types . Angle parameters are intended for right ascensions and declinations, where conversion from hours/minutes/seconds or degrees/minutes/seconds may be needed. ... Note that the maximum range of the angle type is [-360,360] degrees. ... xxdxxmxx[.xxx]s (degrees, minutes and seconds) xxhxxmxx[.xxx]s (hours, minutes and seconds) [(+|-)]xxx[.xxx] (decimal degrees) . ... Note: Angle parameters are accessed by the task as a real value, in degrees. ...

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• Angle
• Angles

Alfa_ang is a GUI for the rotang routine. The purpose of this routine is to calculate the optimum rotation angle for ALFA given the RA and Dec of a source and the date and time of the observation. The routine also returns the azimuth and zenith angle of the telescope at the requested time, thus it can be used to find the correct rotation angle and azimuth for the Fixed Azimuth Drift Scan observing mode used by the AGES drift precursor observation. ... To run alfa_ang at Arecibo: . ...

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• ALFA Sky Angle Tracking
• Rotang - IDL procedure for calculating the optimum rotation angle for ALFA
• sep11 calibration after installation.

... Forum . ... Recent Topics . ... MAO main . Info . Definition of Polarization Angle . ... От: "Claus Leitherer" . ... Тема: Definition of Polarization Angle . ... Please take note of the attached IAU recommendation concerning the definition . of the polarization angle in astronomical measurements. ... www.mao.kiev.ua/images/postbyemail/Polarization.pdf . ... Board Categories MAO main - Info - MAO - news - Flame Technical - Technical Support(Forum)(Техподдержка(Форум)) . ... MAO NASU . ...

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... Tools . ... begin{equation*} \frac{\vartheta}{\mathrm{rad}} = 2 \pi r = 2 \pi \end{equation*} . ... begin{equation} \frac{\Omega}{\mathrm{sr}} = 4 \pi r^{2} = 4 \pi \label{eqn_solidangle} \end{equation} . ... begin{equation*} \frac{\Omega}{\mathrm{sr}} = 2 \pi \, [1 - \cos(\vartheta)] \end{equation*} . ... end{equation*} . ... begin{equation*} \cos(\alpha) = \sin(\vartheta_{1}) \sin(\vartheta_{2}) + \cos(\vartheta_{1}) \cos(\vartheta_{2}) \cos(\varphi_{1} - \varphi_{2}) , \end{equation*} . ...

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• WCSLIB: wcstrig.h File Reference
• An Analytic Approximation to the Bounce-Average Drift Angle for
• Calculation of the average drift angle

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2010 April 21 . Wide Angle: The Cat's Paw Nebula . ... Still, no known cat could have created the vast Cat's Paw Nebula visible in Scorpius . ... Pictured above , a wide angle, deep field image of the Cat's Paw nebula was culled from the second Digitized Sky Survey . ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

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• The Sparkle Plug-In: The Sparkle Dialog Box
• GIMP animations: merge-anim example 1

... Still, no known cat could have created the vast Cat's Paw Nebula visible in Scorpius . At 5,500 light years distant, Cat's Paw is an emission nebula with a red color that originates from an abundance of ionized hydrogen atoms. ... Pictured above , a wide angle, deep field image of the Cat's Paw nebula was culled from the second Digitized Sky Survey . ... Publications with keywords: emission nebula . Publications with words: emission nebula . ... IC 1396: Emission Nebula in Cepheus . ...

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• Астронет > Wide Angle: The Cats Paw Nebula
• Астронет > Англо-Русский Словарь
• Journal "Peremennye Zvezdy"

Общая Астрономическая Конференция > Товары для астрономов > Барахолка . продам широкоугольник minolta standard 10х50 wide angle BAK4 (Япония) . ... EQ-3 mount+EQDrive upgrade kit (motor)+ EQDrive Standard SL (GOTO) . монтировка для бинокля Parallelogram Standard 2 +orion 25x100 . ... Лунные феномены (редкие, необычные явления) Жизнь астрономов-любителей Анонсы астрономических мероприятий Астрономические клубы Наш "Старлаб" . ... Продано: Окуляр WO wide angle 20mm 66гр 1.25" . ...

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• MEADE Окуляр QX Wide Angle 26 мм (2'') [Архив] - Общая Астрономическая
• Продано: Окуляр WO wide angle 20mm 66гр 1.25" - Общая Астрономическая
• продам широкоугольник minolta standard 10х50 wide angle BAK4 (Япония) [Архив] -

... Next: The PROS Big Up: Software Systems Previous: Data Reduction Software . ... The srcinten task provides PROS users with a tool to compute count rates for point sources in the ROSAT High Resolution Imager (HRI). ... Corrected upper limits are cited at locations where the count rate falls below the source detection threshold. ... Srcinten is a new PROS task that computes and applies the above correction factors to the net counts in a user-specified aperture. ...

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... Астрономический телескоп ETX-80AT-TC . ... Окуляр QX Wide Angle 30mm (2") . ... Поле зрения 70 градусов . ... Окуляр парфокален (то есть не требует перефокусировки при смене увеличения) не только с другими окулярами серии 4000QX, но и большинством других 2" окуляров от Meade и многих других производителей. ... Компактные цифровые фотоаппараты . Зеркальные цифровые фотоаппараты PENTAX . ... Окуляры PENTAX . ... Copyright PENTAR ї2004-2016. (бинокли, цифровые фотоаппараты, телескопы) . ...

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• PENTAR: Окуляр Super Wide Angle 34mm (2")

Chapter 11 (chapter 10 in the 2nd edition).

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• Signal-to-Noise Ratio
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STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Meade 4M Community . ... Meade Instruments . ... Telescopes . LX850 Series . ... Series 5000 Xtreme Wide Angle 20mm 100ТА Eyepiece (2") . ... Meade Series 5000 Xtreme Wide Angle 20mm Eyepiece (2") #07752. Featuring a staggering 100 degree apparent field of view Meade Series 5000 Xtreme Wide Angle Eyepieces use 9 optical elements to achieve a high contrast image with razor sharp correction all the way to the edge of the field. ...

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• Series 5000 Xtreme Wide Angle 14mm 100ТА Eyepiece (2")
• Meade Series 5000 Ultra Wide Angle 5.5mm Eyepiece (1.25")
• Meade Series 5000 Ultra Wide Angle 8.8mm Eyepiece (1.25")

... We can help students grasp the significance of Hubble's extremely keen eye, and learn a bit about angles and math in the process, with the following in-class activity. ... Looking through binoculars or telescopes allows us to magnify a small section of the sky. To measure sizes or distances in that small section, astronomers divide a degree into 60 smaller pieces called arcminutes, and further subdivide minutes into 60 smaller sections called arcseconds. ... 30 feet = . ... 36 seconds . ...

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• ASP: To Every Season There is a Reason
• ASP: Good Astronomy Activities on the WWW

Eyepieces Forum Message . ... Eyepieces ћ Meade ћ Misc. ... Eyepieces | ... Need Super Wide Angle (SWA) Eyepiece ? ... H. 2inch/32mm/6-element/80Deg.A.F. SWA eyepiece US$115 . I. 1.25inch/14~25mm/6-element/75-80Deg.A.F. SWA eyepiece US$70-90 . J. 1.25inch/6.5~40mm/4-element Plossl Eyepiece US$25~30 . ... www.astronomy.net . About 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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• Evolution of Intelligence
• Inclined Planes and Friction Java Applet
• Solar Collection and Energy Transport.

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• Mario van den Ancker
• FORS1: Sky Flats and Rotator Effect
• FORS2: Sky Flats and Rotator Effect

... Class . ... FIELD | ... java.lang.Object ij.process.EllipseFitter . public class EllipseFitter . ... double . angle . ... Initialized by makeRoi() . ... drawEllipse ( ImageProcessor ip) . ... makeRoi ( ImageProcessor ip) . ... Field Detail public double xCenter . ... public double angle . ... The fit parameters are returned in public fields. public void drawEllipse ( ImageProcessor ip) . Draws the ellipse on the specified image. public void makeRoi ( ImageProcessor ip) . ...

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• ImageStatistics (ImageJ API)
• StackStatistics (ImageJ API)
• ShortStatistics (ImageJ API)