User blog:Muhammedmco/Big Order - Crater

Introduction
Scan of the feat in question.

Calc


Distance given between Nara and Osaka = 30 km (Via this scan) = 30000 m.

Panel height = 855 px.

Crater size = 275 px.

Using this equation: 2atan(tan(70/2)*[object size in pixels/panel height in pixels]):

2atan(tan(70/2)*[275/855]) = 25.38399246 degrees.

Using angsize:

Diameter of crater = 1.3513e+4 = 13513 m.

Radius of crater = 6756.5 m.