Editing Pine Bluff Observatory (section)

{{About|the observatory in Wisconsin|other uses|Pine Bluff (disambiguation)}}
{{Infobox observatory
|name            = Pine Bluff Observatory
|background      = 
|image           = 
|caption         = 
|organization    = [[University of Wisconsin–Madison]]
|code            = 
|location        = [[Cross Plains (town), Wisconsin|Cross Plains, Wisconsin]]
|coords          = {{Coord|43.0777|-89.6717|type:landmark|display=inline,title}}
|altitude        = {{Convert|362|m|ft|sp=us}} 
|weather         = 
|established     = {{Start date|1958}}
|closed          = 
|website         = {{URL|http://www.sal.wisc.edu/PBO/|Pine Bluff Observatory}}
|telescope1_name = 36-Inch Telescope
|telescope1_type = 0.9 m reflector
|telescope2_name = 16-Inch Telescope
|telescope2_type = 0.4 m reflector
|telescope3_name = 
|telescope3_type = 
|telescope4_name = 
|telescope4_type = 
}}

The '''Pine Bluff Observatory''' (PBO) is an [[astronomy|astronomical]] [[observatory]] located in the town of [[Cross Plains (town), Wisconsin|Cross Plains, Wisconsin]] ([[United States of America|USA]]) about {{Convert|24|km|mi|sp=us}} west of [[Madison, Wisconsin|Madison]].  PBO is owned and operated by the [[University of Wisconsin–Madison]] (UW-Madison).  It opened in 1958, and is mainly used by students and faculty of UW-Madison for instruction and research.  PBO also provides a facility for testing new instruments.<ref name=PBOMAIN />  Recent research conducted at PBO includes measuring the lunar sodium tail, monitoring [[circumstellar disks]] around [[Be stars]], and studying the [[interstellar medium|warm ionized medium]].<ref name=2006MIER /><ref name=2011DRAP /><ref name=2011HALF />