In O.K. K.O.: Let's be heroes, Rad cracks "Planet X". https://streamable.com/1bq7y
I'll be making 3 ends to this since there's no info on the size of the planet as far as i'm aware. Both ends will be done using the same image as basis.
In all of the ends, Rad cracks 586.25 pixels. The diameter of the planet is worth 365.72 pixels. And the width of the cracks is 3.5 pixels. For all the ends, the depth should be, lowballing it, 10 meters or so.
FIRST END - SMALL PLANET
In case it's a small planet, it's the same size of mercury, so its diameter is equal to 4879km. This means that 1p = 13.34km, so Rad cracks [(586.25*13.34)*(3.5*13.34)*(0.01*13.34)], or 48710.029 ck. Assuming the planet is made of a material similar, in durability, to concrete (which seems to be the case), that gets us 48710029000000000000cc. With violent fragmentation, that ends in 828070493000000000000J, or 197.913597753 Gigatons, High 6-C.
SECOND END - IN CASE IT'S THE SIZE OF EARTH
In case it's the size of Earth, its diameter is that of 12742km. So 1p = 34.84km, so Rad cracks [(586.25*34.84)*(3.5*34.84)*(0.01*34.84)], or 867731.45 ck. Assuming the planet is made of a material similar, in durability, to concrete (which seems to be the case), that gets us 867731450000000000000cc. With violent fragmentation, that ends in 14751434650000000000000J, or 3.525677 Teratons, Low 6-B.