. This diagram illustrates how the definition of a pixel depends on the users distance from the viewing surface (paper or screen). The image depicts the user looking at two planes, one 28 inches (71 cm) from the user, the second 140 inches (3.5 m) from the user. An expanding cone is projected from the user's eye onto each plane. Where the cone strikes the first plane, the projected pixel is .28 mm high. Where the cone strikes the second plane, the projected pixel is 1.4mm high. Return to image.

... There has been a heated public discussion in the past few years about whether our ninth planet is really deserving of the name. Since Pluto orbits a star, and is much less luminous, it certainly satisfies the definition we have above. The problem is actually not with Pluto, but with a very large number of other bodies in our Solar System which also satisfy this definition, but which are not called planets. Perhaps the most notable of these is Ceres, the largest asteroid. ... Planet . ...

... Science Users Information > Observing with ESO Telescopes > Phase 2 Preparation > Observing conditions . ... Service Mode Philosophy . ... The following definitions of the observing conditions are common between Phase 1 preparation and Phase 2 preparation, as well as between Service Mode and Visitor Mode observations. ... There are additional Service Mode Policies and Service Mode Guidelines regarding the observing conditions. ... Seeing (Phase 1) and Image quality (Phase2) constraints . ... Moon . ...

lsst.coordConv љ unknown . ... Classes . Files . ... Site . ... coordConv::Site Class Reference . ... Site (double meanLong , double meanLat , double elev ) . ... site longitude, ignoring pole wander (deg, positive eastward) More... љ . ... Definition at line 10 of file site.h . coordConv::Site::Site . ... double coordConv::Site::azCorr . ... double coordConv::Site::corrLat . ... double coordConv::Site::corrLong . ... double coordConv::Site::diurAbMag . ... double coordConv::Site::elev . ...

... casa . casa::StringDistance . ... Class to deal with Levensthein distance of strings. ... StringDistance (const String &source, Int maxDistance=-1, Bool countSwaps= True , Bool ignoreBlanks= True , Bool caseInsensitive= False ) . ... distance (const String &source, const String &target, Bool countSwaps= True ) . ... doDistance (const String &source, const String &target, Bool countSwaps, Matrix < Int > &matrix) . ... Remove blanks from the given string. const string& casa::StringDistance::source . ...

... The first of the equations defines the position of the spectral orders, m , in the raw image, while the second equation gives, for each order, the dispersion relation in one dimension. ... where the coefficients are computed using least squares techniques on a grid , i.e. sample number and line number of points located within the spectral orders of the image. These points in the grid are found automatically by an order--following algorithm, normally using the FLAT or STD image. ...

... Content Model: Optional list header (LH), followed by one or more terms (DT) and definitions (DD). A definition list is a list of terms and corresponding definitions. Definition lists are typically formatted with the term on the left with the definition following on the right or on the next line. ... The definition list element can take the COMPACT attribute, which suggests that a compact rendering be used, and is appropriate if the list elements are small and/or the entire list is large. ...

... 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 . ...

... sin f = y / r . cos f = x / r . ... They are now viewed as new definitions of the sine and cosine, for the polar angle f given by x and y ( a slightly different way of formulating this definition is described further below ). ... sin 2 f + cos 2 f = 1 . ... Angle . ... Many trigonometry texts define the sine and cosine slightly differently, using the so-called unit circle . ... Then the distance AB ("the sine line") equals sin a , and the distance OA ("the cosine line") equals cos a . ...

... Us . ... Merging Calls . ... Call Status . ... The Agent will be warned after three hours (Triage) or after six hours (Team Level) of inactivity, and again if still unedited. ... When the User replies, calls move to this status. The Agent will be warned after two days of inactivity, and again every day thereafter. ... Thinks they solved the problem, but want to leave the call open for a bit. ... The Agent will be warned after ten (business) days of inactivity, and again every day thereafter. ...

... A structure definition is provided: . type, public :: EllipseT real(single) ::& xAmp,& yAmp,& phase,& ! ... eg 'pixels', 'detxy', 'tanxy' logical(bool) :: isCircle end type EllipseT . ... interface initializeEllipseT subroutine initializeEllipseTScalar(ellipse) type(EllipseT), intent(out) :: ellipse end subroutine initializeEllipseTScalar subroutine initializeEllipseTVector(ellipse) type(EllipseT), intent(out) :: ellipse(:) end subroutine initializeEllipseTVector end interface . ...

Next: Procedure for Dealing with Up: scientific Previous: Code of Good Practice . ... Any practice or conduct that seriously deviates from the ethical standards embodied in the Code of Good Practice for Scholarly and Scientific Research for proposing, conducting and publishing scientific research constitutes Scientific Misconduct, and if proven renders the offending member liable to the Observatory's disciplinary procedures. ...

spaceweb@oulu.fi - last update: 1 July 1998, 1200 UT (RR) . ... Relates the wave number k to the wave frequency. ... From the equation of motion , m d v /dt = q( v x B ) one can calculate that, in a presence of magnetic field B , a charged particle is accelerated in direction perpendicular to both v (perp) and B . ... The angle a between magnetic field B and velocity vector of a charged particle, v ., i.e., sin a = v(perp) / v(total), where v(perp) refers to the velocity component perpendicular to B . ...

The HyperNews Linux KHG Discussion Pages . Forum: The Linux Kernel Hackers' Guide . Re : Linux SMP Scheduling (Angela) . Date: Mon, 16 Mar 1998 16:34:54 GMT . From: Felix Rauch < rauch@inf.ethz.ch > . The definition of NO_PROC_ID can be fount by, e.g., the following command: . find . -name "*.[ch]" -print | xargs grep NO_PROC_ID | grep #define . (assuming you are in the Linux-source-directory). This will show that NO_PROC_ID is defined as follows: . #define NO_PROC_ID 0xFF .

... Survey processing . ... ESO - Public Surveys . ... The Survey Areas Definition Tool is part of the VISTA Data Flow System Project (a separate project to the VISTA Project) and was delivered to ESO for use with VISTA and (later) VST. ... The SADT and can be found via the ESO SADT page and includes inter alia . ... The Y overlap value set in SADT controls how the Y edges of adjacent tiles overlap. ... Y overlap 0/60 efficiently uses the one time covered regions to make a 2x covered region . ...

... Judged by their instrumental profiles, spectrometers fall into two basic classes---Lorentzian and Gaussian---with many other line profile functions (sinc functions, Voigt functions, Airy functions, etc.) falling into one of these two categories in some limit. We demonstrate that the Rayleigh, Sparrow, and Houston resolution criteria are of limited use compared to the ``equivalent width'' of the line profile. ... Rayleigh criterion. ... All of these functions have continuous higher derivatives. ...

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Each Apache module is described using a common format that looks like this: . Status: status . ... This indicates how tightly bound into the Apache Web server the module is; in other words, you may need to recompile the server in order to gain access to the module and its functionality. ... A module with "Extension" status is not normally compiled and loaded into the server. ... Modules which are not included with the base Apache distribution ("third-party modules") may use the "External" status. ...

Astronomy Discussion Forums . Forums: . ... Here's A Definition Of 'possible' . ... Post Message | ... Posted by Harvey on October 21, 2002 18:48:54 UTC . ... Oops - harvey1 - October 21, 2002 - 18:50 UTC . ... I hope Stafford doesn't mind my intruding his forum - mrsouza - November 8, 2002 - 14:55 UTC . ... 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" . ...

... This transit allows for the angular size of the dark spot (i.e. Venus) to be measured in a way that is more accurate than other ways. ... Calculate the distance to the Sun by assuming that the Earth and Venus have the same physical diameter (i.e. 12,600 km). ... The solar constant, the amount of energy that is received by the earth at the top of our atmosphere is 1.4 x 10 6 ergs cm -2 sec -1 , Calculate the total luminosity of the sun (you should get 4x10 33 ergs/sec). ...