When correcting observations for refraction using an astrolabe around 1000 AD, which consequence results from assuming a uniform atmosphere?

💡 Explanation

Underestimation occurs because the calculations approximate constant air density via the refraction mechanism; therefore, the refraction's effect near the horizon is less substantial than in reality because density decreases as one goes upward rather than remaining uniform.

• Which risk increases when Byzantine silk workshops exceeded dye bath's capacity?
• Which destructive outcome accompanied Renaissance siege operations that used mines under fortress Vauban walls?
• Which degradation outcome was accelerated because moisture entered Roman mosaics?
• Which risk increases when Inca rope suspension bridges experience high foot traffic?
• Which limitation affected the accuracy of early hand-crafted brass astrolabes when determining the altitude of celestial objects?
• Which consequence results when terrace walls experience basal over-saturation?