http://www.cloudynights.comRecent Reviews and Articles on Cloudy Nightsen-us http://www.cloudynights.com/ubbthreads/attachments/390057-logosmall.jpghttp://www.cloudynights.comhttp://www.cloudynights.com/item.php?item_id=2065The Pentax 2.5mm and 5mm XO series of eyepieces ("O" for visual Observation) were released by Pentax for the 2003 Mars opposition event. Based on my research of public online archives and marketing releases, Pentaxˇ¦s optical design goals for the XO William PaoliniNew Review2009-11-06T00:00:00-05:00http://www.cloudynights.com/item.php?item_id=2064Wider-field "budget" eyepieces seem to be all the rage these days. Some are not all that great in the performance department (especially in faster scopes), but once in a while, one comes by which sets itself apartDavid KniselyNew CN Report2009-11-04T00:00:00-05:00http://www.cloudynights.com/item.php?item_id=2061Highlights: Comet Journal, Martian Landers, Planet Plotting, Meteors, Depths of Space, November MoonDick CookmanNew Article2009-11-02T00:00:00-05:00http://www.cloudynights.com/item.php?item_id=2062Of the dozens of open star clusters that dot the autumn sky, none is more popular among binocular stargazers than NGC 869 and NGC 884, the famous Double Cluster in PerseusPhil HarringtonNew Article2009-11-02T00:00:00-05:00