i.imgur.com/IBPQbPJ.jpg
Basically, half the thing got blasted off on impact, so,
Shovel knight is 1.772m tall and 110 pixels
Meteor is 97 pixels tall and 1.56258m which is the radius
Resulting in a volume of 15.979m^3
http://meteorites.wustl.edu/id/density.htm
3400kg/m^3
For a mass of 54,329 kg
en.wikipedia.org/wiki/List_of_… ... s_to_Earth
lowest from this list is 11,900,000 meters
Timeframe is 1 second, so the speed is 11,900,000 m/s
KE = 3,846,764,845,000,000,000J or 919,398,863.5 tons of TNT or 919 megatons per meteor
Times that by the six meteors to get Black Knight's magical power of 5.5 gigatons