Credits to Gallavant[]
In Zone Fighter (1973), an Ultraman ripoff TV show produced by Toho starring several Godzilla kaiju, the Garoga destroy Zone Fighter's home planet, Peaceland (lol) before he arrives to Earth
Assuming Earth-Moon distance between planets we can find the sizes
First the viewer's distance from the Garoga planet:
object degree size = 2*atan(Object_Size/(Panel_Height/tan(70/2)))
2*atan(500/(389/tan(70/2)))
Garoga planet's degree size: 83.975038415396
Earth size (or Garoga planet's actual size): 12,742 km
http://www.1728.org/angsize.htm
The distance is 7,078.8 km
Added to the Earth-Moon distance 384,400^2 + 7,078.8^2 km = 147813469409.44
square root of 147813469409.44 = 384465.17
2*atan(47.7/(389/tan(70/2)))
Planet Peaceland degree size: 9.814865695088
Distance: 384465.17
http://www.1728.org/angsize.htm
Solving for size
66021 km diameter
Low end GBE:
Spoiler:
A habitable planet this big has a minimum GBE of 3.110E+34 joules. That's the low end.
7.43 Yottatons
Large Planet level
Garoga Missile Explosion:
At this size the KE of the planet's explosion starts nearing superluminal speeds
Spoiler:
32 px = 66021 km
82 px explosion = 169178.8 km diameter explosion
169178.8 - 66021 = 103157.8 km
103157.8 / 2 = 51578.9 km expanded in all directions
5 frames
25 frames per second
0.2 seconds
51578.9 / 0.2 = 257894.5 km/s gas cloud
Mass of planet: 1.601E+26 kg
Velocity: 86% the speed of light
Spoiler:
1.379E+43 Joules
3.296 Quettakilotons
Multi Large Star level
Spoiler:
FTL debris was just Zone Fighter's spaceships surviving the explosion
High End GBE:
Now the other thing about this planet.. is it is inconsistent. We only get two scalable shots of it so here's the first (high end) one for shits:
2*atan(48/(389/tan(70/2)))
9.876290122332
Earth size (or Garoga planet's actual size): 12,742 km
Distance: 73,738 km
This time I'll actually account for the obtuse angle.. by splitting it into two right angles.
250 px: 66364.58 km
Angle 1:
If the Earth-Moon distance is the hypotenuse of the first right angle and the blue/yellow line is leg B:
66364.58^2 + b^2= 384472.282^2
4404257478.5764 + b^2 = 147818935626.287524
b^2 = 143414678147.711124
sqrt(143414678147.711124)
Leg A is 378701.3 km
Angle 2:
If the distance to the Garoga planet is the hypotenuse of the second right angle and the blue/yellow line is also leg B:
66364.58^2 + b^2 = 73738^2
4404257478 + b^2 = 5437292644
b^2 = 1033035166
sqrt(1033035166) = 32140.864
Leg A is 32140.86 km
32140.864 + 378701.3 = 410842.16 km
2*atan(147/(389/tan(70/2)))
degree size: 29.641925985284
410842.16 km distance
http://www.1728.org/angsize.htm
when solved for size:
217,420 km diameter
Spoiler:
GBE: 1.111E+36 joules
Garoga Missile Speed:
For this we have two timeframes:
2.6 seconds for the camera to change to the missiles zooming by the planet
Spoiler:
or 0.36 seconds for a missile to end up behind one of the planet's rings :illumanaticonfirmed
Spoiler:
distance is 384472.28 km
384472.282 / 2.6 = 147873.95 km/s
384472.28 / 0.36 = 1067978.55 km/s
speed of light: 299792.458 km/s
0.493c - 3.56c[]
Tally:
Planet Peaceland GBE: 7.43 - 265.54 Yottatons
Large Planet level
Garoga Missile Explosion KE: 3.296 Quettakilotons
Large Star level
Garoga Missile Speed: 0.493c - 3.56c
Relativistic - FTL