File:Sun-Ecliptic-4Seasons-aDayOnEarth.gif
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Sun-Ecliptic-4Seasons-aDayOnEarth.gif (320 × 240 pixels, file size: 394 KB, MIME type: image/gif, looped, 36 frames, 7.2 s)
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Summary[edit]
DescriptionSun-Ecliptic-4Seasons-aDayOnEarth.gif |
English: The Sun & the ecliptic rotation around the Earth : The green Sun is the one of the vernal equinox (march), it is followed by a summer solstice Sun. Then automn equinox and winter solstice. The ground plane (latitude 50°N) is green, the rotating ecliptic plane is blue. Also represented are the celestial equator, the two tropics and the rotation axis.
Français : Changement de position du Soleil et de l'écliptique autour de la Terre : le Soleil vert est celui du point vernal (mars), il est suivi du Soleil au solstice d'été. Ensuite, équinoxe d'automne et solstice d'hiver. L'horizontale (à 50° de latitude nord) est vert, le plan de l'écliptique (sur lequel 4 Soleils sont représentés) est bleu. On peut aussi voir l'équateur céleste, les deux tropiques et l'axe de rotation terrestre. Le cylindre noir représente un homme à la surface.
Русский: Движение Солнца (жёлтые и зелёный шарики) по небесной сфере в день летнего солнцестояния (верхняя зелёная окружность), в день весеннего и в день осеннего равноденствий (красная окружность) и в день зимнего солнцестояния (нижняя зелёная окружность). Голубой круг — плоскость эклиптики. Зелёный круг — плоскость горизонта. |
Date | |
Source | Own work |
Author | Xofc |
Povray animation ::
See also
- File:Sun-Ecliptic-4Seasons-aDayOnEarth-LookingSouth.gif
- File:Sun-Ecliptic-4Seasons-aDayOnEarth-LookingEast.gif
- File:Sun-Ecliptic-4Seasons-aDayOnEarth-LookingWest.gif
// ecl.pov #declare Latitude=50; #declare Eclip=23.7; global_settings { assumed_gamma 1.5 noise_generator 2 } light_source { <5000, 3000, 0>, rgb <1, 1, 1> } //---------------- cylinder { // ground <0,0,0>,<0,0.05,0>, 7 texture { pigment{ color rgbt<0.4,0.8,0,0.8>} finish { diffuse 0.9 phong 0.5} } } cylinder { // man <0,0,0>,<0,2,0>, .2 pigment { rgb <0,0,0> } } union { cylinder { <0,-20,0>, <0,20,0>, 0.1 // poles axis pigment { rgb <1,0,0> } } torus { 7, 0.05 // Equator pigment { rgb <1,0,0> } } torus { 7*cos(radians(Eclip)), 0.05 // Cancer pigment { rgb <0,1,0> } translate <0,-7*sin(radians(Eclip)),0> } torus { 7*cos(radians(Eclip)), 0.05 // Capricorne pigment { rgb <0,1,0> } translate <0,7*sin(radians(Eclip)),0> } union { cylinder { <0,0,0>,<0,0.05,0>, 7 // Ecliptic plane texture { pigment{ color rgbt<0,0.8,1,0.8>} finish { diffuse 0.9 phong 0.5} } } sphere { <7,0,0>,.5 // Sun september pigment { rgb <1,1,0> } } sphere { <-7,0,0>,.5 // Sun march pigment { rgb <0,1,0> } } sphere { <0,0,7>,.5 pigment { rgb <1,1,0> } } sphere { <0,0,-7>,.5 pigment { rgb <1,1,0> } } rotate <Eclip,0,0> } rotate <0, clock, 0> rotate <-(90-Latitude),0,0> } camera { perspective location <15, 0, 0> rotate <0,30,5> look_at <0, -.6, 0> }
; ecl.ini ; Persistence Of Vision raytracer version 3.5. Antialias=On Antialias_Threshold=0.3 Antialias_Depth=3 Input_File_Name=ecl.pov Initial_Frame=1 Final_Frame=36 Initial_Clock=0 Final_Clock=360 Cyclic_Animation=on Pause_when_Done=off
# doit.sh povray +ua ecl.ini convert -delay 20 -loop 0 -dispose Previous ecl*.png ecl.gif
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 10:46, 8 September 2010 | 320 × 240 (394 KB) | Xofc (talk | contribs) | {{Information |Description={{en|1=The Sun & the ecliptic rotation around the Earth : The green Sun is the one of the vernal equinox (march), it is followed by a summer solstice Sun. Then automn equinox and winter solstice. The ground plane (latitude 50� |
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