In the opera by the Italian composer Giacomo Puccini “Madame Butterfly” (Cio-Cio-san) one of the heroes (Pinkerton) in the first act of the play sings the following: “And a thousand stars look at us with their own eyes.” Confirm or refute Pinkerton’s words from an astronomical point of view.
Pinkerton is basically right. In the entire starry sky, there are about 6 thousand stars visible to the naked eye. Half of them are above the horizon at any given time.
However, faint stars will not be visible low above the horizon, especially if the transparency of the atmosphere is not very good. As a result, 1-2 thousand stars can be seen in the starry sky.
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