... 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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... 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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... 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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. Computer Ephemeris. Lunar physical observations. Explanations. Each row contains at 0h of Time Dynamical Terrestrial: month, day, selenographic longitude and latitude of the Earth (degrees), physical libration in longitude and latitude (degrees), 90 o minus selenographic longitude of the Sun and Sun's selenographic latitude (degrees), position angle of lunar axis of rotation (degrees), position angle of terminator (degrees), phase angle (degrees), illuminated part of lunar disk (demensionless).

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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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... 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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... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil De la temp†кte solaire aux aurores bor†йales . ... Pour en savoir plus sur les aurores bor†йales, consultez notre article €л †А la poursuite des aurores bor†йales €Ё paru dans le Ciel & Espace de septembre 2011. ... Etat du ciel ...

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... Un angle droit peut se d?finir comme un des 4 angles form?s par le croisement de deux lignes droites lorsque ceux ci sont ?gaux. La r?ciproque du th?or?me est ?galement vraie : si les longueurs des trois c?t?s ( a,b,c ) d'un triangle satisfont ? ... Il est ?galement n?cessaire de conna?tre quelques surfaces simples : celle d'un rectangle se calcule en multipliant la longueur par la largeur, par exemple celle de celui qui est dessin? ci dessus vaut ab . ... Regardez maintenant le carr? ? ...

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... This document and the attached postscript figure document an analysis that I did to determine the optimum midpoint and required ranges for both the rotator and azimuth for the 2.5 M telescope. ... I simulate a series of drift scans on the sky for tracks that cover the northern survey area. These tracks cover the range in survey latitude of -60 to +60 degrees, spaced by 10 degrees. ... Along each track the azimuth, elevation, and position angle of the CCD is computed at 1 minute intervals. ...

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Stellarium 0.12.3 . ... Classes . ... AngleSpinBox Class Reference . A spin box for displaying/entering angular values. More... #include < AngleSpinBox.hpp > . ... virtual voidљ . ... Set the value to default 0 angle. ... AngleSpinBox (QWidget *parent=0, DisplayFormat format= DMSSymbols , PrefixType prefix= Normal ) . ... Set the display format. ... the value to set, in decimal degrees. void AngleSpinBox::setDisplayFormat . ... the value to set, in radians. void AngleSpinBox::valueChanged . ...

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Voyager 2 raw image of Neptune's satellite Triton taken from roughly 500,000 km. ... The image was taken through the orange filter of the narrow angle camera. ... Central Latitude/Longitude (deg): N/A . ... Instrument: Narrow Angle Vidicon Camera . ... Instrument Field of View (deg): .424 x .424 . ... Phase Angle (deg): N/A . ... NASA Image ID number: FDS 11386.39 . ... Code 633, NASA Goddard Space Flight Center . Greenbelt, MD 20771, USA . ... Code 630, NASA Goddard Space Flight Center . ...

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14. http://selena.sai.msu.ru/Shev/Publications/ms38/ms083.pdf

15. http://star.arm.ac.uk/~meb/files_2011aug24/measuring_angles.doc

16. This is a Stickup! - Links

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19. http://www.abitu.ru/en2002/closed/viewwork.html?ext=26

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