Earth size compared to Starkiller Base

The size of the famous Starkiller space base, compared to that of our dear planet Earth. The base has a size that is well below that of the planet.

Object	Starkiller Base	Earth
Type	Space base	Rocky planet
Age	29 years	4.54 billion years
Population	750,000	7.7 billion
Diameter	660 km	12,742 km
Mean radius	330 km	6,371 km
Mass	1.60 × 1022 kg	5.97 × 1024 kg
Circumference	2,073 km	40,075 km
Surface area	1.3 million km²	510 million km²
Volume	1.5 × 108 km3	1.08 × 1012 km3
Atmosphere composition	nitrogen, oxygen, carbon dioxide	78% nitrogen (N2), 21% oxygen (O2), ~ 1% water vapor, 0.9% argon, 0.04% carbon dioxide
Crust composition	quadanium steel, silica	60% silica, 16% alumina, 6% lime, 6% iron oxide, 4% magnesia, 3% sodium oxide, 2% potassium oxide
Distance from the Milky Way center	-	27,200 light years

Note: if one of the objects is not visible, it just means that it is too tiny to be displayed compared to the other one.