src/Marando/AstroDate/Epoch.php
public static function J($year) {
    // Get JD of the epoch
    $jd = static::J2000()->jd + ($year - 2000) * static::DaysJulianYear;

    // Create and return new epoch
    $epoch       = new static($jd);
    $epoch->type = YearType::Julian();
    return $epoch;
  }
public static function J($year) {
    // Get JD of the epoch
    $jd = static::J2000()->jd + ($year - 2000) * static::DaysJulianYear;

    // Create and return new epoch
    $epoch       = new static($jd);
    $epoch->type = YearType::Julian();
    return $epoch;
  }
public static function J ( $ year ) { // Get JD of the epoch $ jd = static :: J2000 ( ) -> jd + ( $ year - 2000 ) * static :: DaysJulianYear ; // Create and return new epoch $ epoch = new static ( $ jd ) ; $ epoch -> type = YearType :: Julian ( ) ; return $ epoch ; }
Creates a new epoch from a Julian year number
@param float $year Year number in Julian years
Creates a new epoch from a Julian year number