Problems adding GameObjects to a GameObject array (C#)

Hello!

I'm declaring a GameObject array and then trying to add GameObjects to it.

My declaration looks like this:

public GameObject[] OrbitingSatellites = new GameObject[7];

And my code to add objects just isn't working. I feel like this might be close:

OrbitingSatellites[0] = orbital1;

where "orbital1" is the name of the GameObject I want in the array at position 0.

The errors it throws are

CS0120: 'Orbit.OrbitingSatellites': An object reference is required for the nonstatic field, method or property

CS0021: Cannot apply indexing with [] to an expression of type 'object'

Please help me find a solution, thank you.

EDIT: Declaration of orbital1 looks like this:

public GameObject orbital1;

I'm using this as a container for an instanced primitive sphere. In the inspector it checks out as a game object, and it is indeed a sphere that I'm manipulating.

Here is a sample of the code I used, after cutting/pasting your lines into a script, which worked with no problem:

public class s_foo : MonoBehaviour {
    public GameObject[] OrbitingSatellites = new GameObject[7];
    public GameObject orbital1; // drag-dropped "small explosion" in Editor.

    void Start() {
        OrbitingSatellites[0] = orbital1;
        Debug.Log("os = " + OrbitingSatellites[0].name); // prints "small explosion"
    }
}

What differences, if any, are in your code structure?

This is a correct method for adding game objects to a gameobject array, my problems lie elsewhere.