Object's apparent size changes unrealistically with distance

[lastant]

HARDWARE/SOFTWARE VERSIONS

• Unity: 2018.3.2f1
• Google VR SDK for Unity: 1.190.1

STEPS TO REPRODUCE THE ISSUE

1. Create a "Sun" object: a sphere with position x=0,y=0,z=1.5e+08 and scale x=695508,y=695508,z=695508 and material with Emission set to On and color White
2. Set Camera clipping plane far to 2e+08
3. Might also need to set Would Bounds Extent to 2e+08 in Project Settings->Physics

ISSUE

Looking through the Cardboard, the object should be the size of the real sun. Instead, it looks much smaller.

ADDITIONAL COMMENTS

Maybe the problem is with the FoV setting, but changing it through Unity doesn't affect the Cardboard app.