File:Epsilon Aurigae type eclipsing variable double star animation 2 1 1 1.gif

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Epsilon_Aurigae_type_eclipsing_variable_double_star_animation_2_1_1_1.gif(800 × 600 pixels, file size: 16.98 MB, MIME type: image/gif, looped, 180 frames, 9.0 s)

Captions

Captions

Epsilon Aurigae type eclipsing variable double star animation

Summary

[edit]
Description
English: Epsilon Aurigae type eclipsing variable double star animation . Rare type bright yellow supergiant has alos strange companion. Single of double star, that is surrounded by thick gas ring, that can eclipse partially supergiant star.
Date
Source Own work
Author Merikanto

Imagemagick script for linux. convert -delay 5 -loop 0 *.png animation_1.gif

    1. windows: "magick convert -delay 5 -loop 0 *.png animation_1.gif"

Animation .ini file

Input_File_Name="epsilon1.pov" Antialias=Off Antialias_Threshold=1 Antialias_Depth=2 Quality=11 Initial_Frame=1 Final_Frame=180 Initial_Clock=0 Final_Clock=360 Cyclic_Animation=on Pause_when_Done=off

POV-Ray 3.7 source code

///////////////////// // // Epsilon Aurigae-like Algol-type eclipsing variable // secondary double star has surrounded by thick gas ring // that can eclipse bright supergiant star // POV-Ray 3.8 source code // // 6.10.2023 0000.0001 // ////////////////////////

  1. include "functions.inc"
  1. declare samples1=100;
  1. declare tauorig=180+90+70;
  1. declare taunolla=clock+tauorig;
  1. declare tau1=radians(taunolla);
  2. declare tau2=radians(taunolla+180.0);
  1. declare ra=5;
  2. declare rb=5;
  3. declare rc=0.15;
  1. declare ax = sin(tau1)*ra;
  2. declare ay = cos(tau1)*ra;
  1. declare bx = sin(tau2)*rb;
  2. declare by = cos(tau2)*rb;


  1. declare cx = sin(tau1*4)*rc;
  2. declare cy = cos(tau1*4)*rc;
  1. declare sax=ax*1;
  2. declare say=ay*1;
  3. declare sbx=bx*1;
  4. declare sby=by*1;
  5. declare scx=cx*1;
  6. declare scy=cy*1;

camera {

location <0,0,-50>
look_at <0,0,0>
angle 25

}

  1. macro starr1(color1, color2)

union {

object {

 sphere {
 0, 1
 }
 
// pigment { color rgb color1 }
 pigment {
 	
 	granite 
 	translate clock
 	warp {turbulence 0.5}
 	color_map {
 		[0 color rgb <1,1,0.0>]
 		[1 color rgb <1,1,1>]
 	}
 
 }

 finish {ambient 1}
 //   scale 0.25
   }
sphere {
 0, 1
 pigment { color rgbf 1 }
 hollow
 interior {
   media {
     emission 5
     method 3
     intervals 2
     samples samples1
    // emission_type 2
    // emission_extinction 2
     density {
  //     spherical  
   function {pow(1*f_spherical(x,y,z),6) }     

// scallop_wave

       color_map {
         [ 0.0 rgb 0.0 ] 
         //   [ 0.4 rgb color1*0.05   ]
        [ 0.7 rgb  color1*0.05 ]
         [ 1.0 rgb  color2*2 ]
       }
     }
   }



 }
 scale 3

}

} // juunion

  1. end


  1. macro starr2(color1, color2)

union {

object {

 sphere {
 0, 1
 }
 
// pigment { color rgb color1 }
 pigment {
 	
 	granite 
 	
 	warp {turbulence 0.5}
 	color_map {
 		[0 color rgb <1,1,0.3>]
 		[1 color rgb <1,1,0.7>]
 	}
 
 }

 finish {ambient 2}
    scale 0.25
   }
sphere {
 0, 1
 pigment { color rgbf 1 }
 hollow
 interior {
   media {
     emission 51
     method 3
     intervals 2
     samples samples1
    // emission_type 2
    // emission_extinction 2
     density {
  //     spherical  
   function {pow(1*f_spherical(x,y,z),6) }     

// scallop_wave

       color_map {
         [ 0.0 rgb 0.0 ] 
         //   [ 0.4 rgb color1*0.05   ]
        [ 0.6 rgb  color1*0.5 ]
         [ 1.0 rgb  color2*2 ]
       }
     }
   }


 }

scale 3 }

} // juunion

  1. end
#macro gasring1(color1, color2)

union {

// sphere { // 0, 1

object {

 torus {1,0.70 
   pigment { color rgb color1 }
 finish {ambient 1}
 }
 
 
 scale y/3
 pigment { color rgbf 1 }
 hollow
 interior {
   media {
//   emission 0.1
 //    absorption 1
     method 3
     intervals 1
     samples samples1  
      scattering { 1, <1,1,1>*2 }
     density {   
function {   

// pow( 
 
// f_torus(x,y,z,1,0.7)

// 0 +f_wrinkles(x,y,z),1)

            f_torus(x,y,z,1,0.7)
            +f_ripples(x,y,z)
            +f_spiral1(x,y,z)
        + pow( f_wrinkles(x*2,y*2,z*2),1)  
          + pow( f_agate(x*2,y*2,z*2),1)  
 }
 /*
       color_map {
         [ 0.0 rgb 0.0 ] 
      //      [ 0.2 rgb color1*0.05   ]
       //  [ 0.6 rgb  color1*0.5 ]
         [ 1.0 rgb  1 ]
       }
  • /
}

 rotate y*taunolla
   }


 // absorbing stuff
  media {
     absorption 0.5
     method 3
     intervals 2
     samples samples1
     density {
          //   function {pow(f_spherical(x,y,z),1.5) }  
           function { 
           f_torus(x,y,z,1,0.7)
           +f_ripples(x,y,z)
             +f_spiral1(x,y,z)
        + pow( f_wrinkles(x*2,y*2,z*2),1)  
          + pow( f_agate(x*2,y*2,z*2),1)   
           }  
     //   function {f_granite(x*30,y*30,z*20) }     
   // spherical        

// scale 10

       color_map {
         [ 0.0 rgb 0.00 ]
         [ 0.5 rgbt 0.1*1-<1,1/2,0> ]
         [ 1.0 rgb 1*1-<1,1/2,0> ]
       }
     } 
  }


 }
rotate y*taunolla

}

} // juunion

  1. end


object { //starr1(<1,.25,0>, <1,0,0>) starr1(<1,1,0>, <1,1,1>)

scale 4 translate <sax,0,say> }

object {

starr2(<.5,.5,1>*2, <0.25,0.25,1>*1)

scale 0.2

translate <sbx+scx,0,sby+scy> }

 object {

starr2(<.5,.5,1>*2, <0.25,0.25,1>*1)

scale 0.2

translate <sbx-scx,0,sby-scy> }

object {

gasring1(<.1,.1,0.1>*2, <0.1,0.1,0.1>*1) scale 3 rotate z*15 rotate y*-10 rotate x*-20 translate <sbx,0,sby> }


Licensing

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I, the copyright holder of this work, hereby publish it under the following license:
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

File history

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Date/TimeThumbnailDimensionsUserComment
current16:09, 6 October 2023Thumbnail for version as of 16:09, 6 October 2023800 × 600 (16.98 MB)Merikanto (talk | contribs)Uploaded own work with UploadWizard

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