On Sun, 22 Mar 1998, Roger Bailey wrote: > Let me keep the thread going with another challenge. You have all observed > how much larger the full moon is when it is near the horizon, rising or > setting, compared to when it is high in the sky. Does this effect also > apply to the sun at sunrise and sunset? Is a larger semi-diameter > correction needed to account for this? > > Roger Bailey > Walking Shadow Designs > Canmore, Alberta, Canada
Nice touch, Roger! My take is: Yes, the same effect applies to the sun, and: No, the semi-diameter really is constant, it's the human visual apparatus that's wrong! Dave
