* Astronomy

NGC 2158 (also OCL 468) is a magnitude +8.6 open cluster located over 11,000 light-years away in the constellation Gemini.

The open cluster was discovered by German-British astronomer William Herschel using a 47.5 cm (18.7 inch) f/13 speculum reflecting telescope at Datchet, Berkshire, on the 16th November 1784. 

Right Ascension 06h 07m 25s, Declination +24° 05' 46"

It is located southwest of open cluster Messier 35, and is believed to be just over 1 billion years old. 
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Credit SDSS