Access variables, objects in array in another script?

Sorry if the title seems confusing but I've either really overcomplicated t$$anonymous$$ngs or i'm just doing somet$$anonymous$$ng very stupid....anyway, here goes.

Basically what i'm trying to do is plot where a planet is in the solar system by ways of using it's semi major axis, mass etc. Now these values are in one script called "Planet" w$$anonymous$$ch contains the values

name, mass, semiMajorAxis, inclination, avgSpeed

with functions to return these named Getmass(), GetsemiMajorAxis() etc etc

In another script I have named "Kepler Coords", I have an array called "planet", now t$$anonymous$$s array contains prefab spheres with teh "Planet" script attached to them with the values filled in, In the "Kepler Coord" script I need to be able to access the variables of the "Planet" script, however try as I may I am getting no joy.

here is part of the "Kepler Coord" script,

 var planet : GameObject[];
 var planetScript : Planet;
 
 function Awake ()
 
 {
     var planet = GameObject.FindGameObjectsWithTag("planet");
     
 }
 
 private function BuildSystem ()
 
 {
     bodies = new GameObject[(planet.length -1)];
     
     for (var i : int = 0; i<planet.length; i++)
         {
             var tMass : float = mass * massConversion;
             mass += tMass;
             
             var tRadialDistance   : float = semiMajorAxis * distanceConversion;
             var tInclinationAngle : float = inclination * ((2.0*Mathf.PI) / 360);
             var tPositionX        : float = tRadialDistance * Mathf.Cos (tInclinationAngle);
             var tPositionY        : float = tRadialDistance * Mathf.Sin (tInclinationAngle);
             var tPosition         : Vector3 = new Vector3 (tPositionX, 0.0, tPositionY);
             
             var tVelocityZ : float = avgSpeed * (distanceConversion/timeConversion);
             var tVelocity  : Vector3 = new Vector3 (0.0, tVelocityZ, 0.0);
             
             var tBody : GameObject = Instantiate(planet, tPosition, Quaternion.identity);
             
             
             tBody.rigidbody.mass = tMass;
             tBody.rigidbody.velocity = tVelocity;

As you can see I need to access the variables from the "Planet" script, but whenever i try planet.GetComponent("mass") or planet.GetComponent(GetMass()) or planet.GetComponents("mass") etc I keep getting an error saying that "GetComponent is not part of GameObject[]".

Any help would be much appreciated as I'd rather not go down the XML route since I have no understanding of it.