I watched him for almost 3 hours without come online and let the fleet sit unguard. So I launched.

The attacker has won the battle !
You receive 93000 units of Metal, 30437 units of Crystal and 155563 units of Deuterium.
The attacker has lost a total of 180.000 units.
The defender has lost a total of 6.287.000 units.
A debris field containing 2.384.700 units of Metal and 1.477.500 units of Crystal has formed in orbit around the planet.
The probability of creating a moon is : 19 %

Thank You, for the contribution of my growing
Goodluck