AstroLAB's Interesting Tables    
Sizes of solar features    
Feature Size Size
(in kilometers) (in arc seconds)
Diameter of the solar disk 1.392.000 1.952 (summer)
1.988 (winter)
Typical granule 500 - 1.250 0,7 1,7
Thickness of the striae 300 0,42
Intergranular lanes 150 - 300 0,24 0,42
Smallest solar detail observed from Earth 90 0,12
Reference: 1 km 0,0014