This unique line of about 20 stars is known as ...
Orion's belt
Orion's sword
Ophiuchus
Kemble's cascade
It was named by in honour of Father Lucian Kemble (1922–1999), a Franciscan friar and amateur astronomer who wrote a letter to Houston about the asterism, describing it as "a beautiful cascade of faint stars tumbling from the northwest down to the open cluster NGC 1502" that he had discovered while sweeping the sky with a pair of 7×35 binoculars
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Answers by country
Orion's belt
Orion's sword
Ophiuchus
Kemble's cascade
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Australia18
France12
Republic of Ireland16
the United Kingdom57
Pakistan14
Austria42
Switzerland23
the Philippines15
the United States98
Poland2842
India173
Germany200