coordinates of the sun

12032016, 08:33 PM
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coordinates of the sun
This HP Prime computer program, demo_sun1, calculates the geocentric coordinates of the sun for a julian date provided by the user. It demonstrates how to interact with a routine called sun1 which performs the calculations.
Here's the program output for a typical example. March 9, 2016 solar right ascension = 349.753879691 degrees solar declination = −4.40887923376 degrees solar eci position vector and magnitude (km) r_x = 145728172.508 r_y = −26341756.0806 r_z = −11417974.8714 rmag = 148529318.742 

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