Meanings of horizontal refraction in English

The horizontal refraction varied so much this morning that the upper limb of the sun twice appeared at the horizon before it finally rose.

The horizontal refraction calculated with this difference and the above-mentioned ratio is 56 minutes 3 seconds at the temperature minus 45.5 degrees.

But the difference of refraction between the upper and lower limbs increasing also in that ratio, gives 48' 30 for the horizontal refraction.

But the difference of refraction at the upper and lower limbs, increasing also in that ratio, gives 55' 16 for the horizontal refraction.

But the difference of refraction at the upper and lower limbs increasing also in that ratio gives 55 minutes 16 seconds for the horizontal refraction.

But the difference of refraction between the upper and lower limbs increasing also in that ratio gives 48 minutes 30 seconds for the horizontal refraction.