This annual event is sponsored by the Amateur Astronomers Association of New York in conjunction with the Urban Park Rangers.  Stargazing in Central Park’s Sheep Meadow will be hosted by numerous amateur astronomers (and their telescopes!).  More details are available at the announcement page at the AAANY web site: http://www.aaa.org/index.aspx?LOBID=952

If you are on Facebook, have a look at their event announcement there: http://www.facebook.com/event.php?eid=135631683957

For a history of the Urban Starfest, see this site: http://rigel.csi.cuny.edu/rowan/NYC_Urban_Starfest.html

And there are some photos from last year’s event:  http://www.aaa.org/index1.aspx?BD=9974

And lastly, for a map see here: http://newyorkcity2005.web.infoseek.co.jp/information/maps/centralpark-map.html