This is my speculation based on Scripture = could be more then trillions
Isaiah 40:26
Look up into the heavens. Who created all the stars? He brings them out like an army, one after another, calling each by its name. Because of his great power and incomparable strength, not a single one is missing.
Psalm 147
1Hallelujah!
How good it is to sing praises to our God,
how pleasant and lovely to praise Him!
2The LORD builds up Jerusalem;
He gathers the exiles of Israel.
3He heals the brokenhearted
and binds up their wounds.
4He determines the number of the stars;
He calls them each by name.
5Great is our Lord, and mighty in power;
His understanding has no limit.