document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=552985>Question 552985</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I'm having a difficulty in solving this problem,your help is highly appreciated: \r<BR>\n" );
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document.write( "The elliptical orbit of Mars has its foci at (0.141732, 0) and <BR>\n" );
document.write( "(-0.141732, 0), where 1 unit equals 1 AU. The length of the major axis is <BR>\n" );
document.write( "3.048 AU. Determine the equation that models Mars’ elliptical orbit </SPAN>\n" );
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document.write( "The elliptical orbit of Mars has its foci at (0.141732, 0) and <BR>\n" );
document.write( "(-0.141732, 0), where 1 unit equals 1 AU. The length of the major axis is <BR>\n" );
document.write( "3.048 AU. Determine the equation that models Mars’ elliptical orbit<BR>\n" );
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document.write( "Standard form of equation for ellipse with major axis in x-direction: (x-h)^2/a^2=(y-k)^2/b^2=1, a>b, (h,k)=(x,y) coordinates of center.<BR>\n" );
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document.write( "Units in AU (Astronomical Unit)<BR>\n" );
document.write( "Given length of major axis=3.048 =2a<BR>\n" );
document.write( "a=3.048/2=1.524<BR>\n" );
document.write( "a^2&#8776;2.323<BR>\n" );
document.write( "c=0.141732<BR>\n" );
document.write( "c^2=.020<BR>\n" );
document.write( "c^2=a^2-b^2<BR>\n" );
document.write( "b^2=a^2-c^2=2.323-.020=2.303<BR>\n" );
document.write( "Equation of ellipse: ( in (x,y) plane)<BR>\n" );
document.write( "x^2/2.323+y^2/2.303=1 </SPAN>\n" );
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