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Astronomical question and answer 243

 

Frank L. Preuss

 

Moon observation during the day?

 

In answer 216 the whole morning I had looked for the moon and only saw it in the afternoon and thought about, why I had not seen it in the morning. That was four days after new moon.

Today, one month later, it is five days after new moon and I had the same observing as one month before, only that I had now the experience of the observing one month ago.

Today I saw the moon for the first time around midday, after I had looked for it the whole morning. Also today we had sunshine and a clear sky.

It is simply so that the sun causes an illumination of the atmosphere of the earth.

And the moon gets visible only then, when the moon has won a power of illumination, which is greater than that of the earth atmosphere.

And when a certain haziness has to be added, then it simply even takes more time.

It is now afternoon and it has gotten somewhat cloudy. The sun is now in the west and the moon still eastwards. The crescent is well visible and has the same colour as the clouds.

It is now 3 hours after midday and the east is now completely overcast and the west partly and the sun shines sometimes and there is no trace of the moon.

It is now 3.5 hours after midday. The sky is completely overcast; it rains and the visibility is a few hundred meters.

And the rest of the day is also not useful for observations of the sky.

 

This is the end of "Astronomical question and answer 243"
To the German version of this chapter: Astronomische Frage und Antwort 243

 

 

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