Sherlocks's meteor calc: Don't know if Sherlock will join... it would be a pity to lose this too: Calc All right, there is no clear way to scale the meteor size here. So lets go at it a bit round about way. Inside the blue circle we can see the fragments of the meteor. Lets assume the length of that fragment is the entire length of the meteor. Now in the bottom panel we can see the size of the meteor in comparison to earth. So, we can scale the meteor using earth's size. Anyway, first lets scale the meteor size. Earth diameter, d = 532 pixel 12742000 meter Fragmented piece length, l = 22.8035 pixel = 546169.74686 meter There is a nice full picture of the whole meteor. We can calc the volume from that. Meteor length, l = 74.51845 pixel = 546169.74686 meter Meteor width, w = (30+41.0487+35.5105+32.7566+20.8086)/5 pixel = 32.02488 pixel Meteor width, w = 234720.6712 meter Modelling the meteor as a cylinder, Volume, V = pi*r^2*h = 23633073106815073.3581599 meter^3...