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
answers
Australia
18
France
11
Republic of Ireland
16
Pakistan
14
the United Kingdom
53
Austria
41
Switzerland
22
the Philippines
15
Poland
2772
India
173
the United States
88
Germany
190