Example image of eyePlorer eyePlorer map for '47 (number)': 46 (number) 48 (number) Natural number 13 (number) 15 (number) 6 (number) Lucas number Safe prime Supersingular prime Highly cototient number Eisenstein prime Fibonacci Keith number Strictly non-palindromic number Amicable number Thabit number Apparent magnitude Barred spiral galaxy Cetus Constellation Messier 47 Messier object New General Catalogue NGC 47 Open cluster Puppis 1309–1300 BC 26 BC April 2 May 10 Saros Solar eclipse 1270s BC 258 February 5 July 31 Lunar eclipse California In-joke Pomona College United States Folklore Mathematical proof Joe Menosky Star Trek: The Next Generation 74 (number) Star Trek: Deep Space Nine Star Trek: Enterprise Star Trek: Voyager Star Trek Generations