code: func calcGeomMeanAnomSun(julianCentury []float64) (geomMeanAnomSun []float64) {
  	for index := 0; index < len(julianCentury); index++ {
  		temp := 357.52911 + julianCentury[index]*(35999.05029-0.0001537*julianCentury[index])
  		geomMeanAnomSun = append(geomMeanAnomSun, temp)
  	}
  	return
  }
docs: // Calculate the Geom Mean Anom Sun in degrees based on the formula: 357.52911 + julianCentury * (35999.05029 - 0.0001537 * julianCentury)
  // julianCentury - Julian century calculated by the calcJulianCentury function
  // Return The Geom Mean Anom Sun slice