Alpha Shiro

Alpha Shiro is a star system that is in or near Federation space, somewhere in the galaxy's Alpha or Beta Quadrants.

History and specifics
On star charts, this system could be seen to be in the vicinity of Denkir, Rigel and Foster/D'Angelo. 

In the 2360s decade, this location was noted on a star chart showing deployment of Federation and Cardassian Union ships displayed in Captain Benjamin Maxwell's ready room aboard the starship USS Phoenix (NCC-65420). 

Alternate realities
On a 24th century viewscreen display of a tactical situation monitor in an alternate timeline where the Klingon Empire was at war with the United Federation of Planets in the year 2366, Alpha Shiro was listed on a star chart showing Klingon allied forces in relation to Federation positions. 

Background
The Alpha Shiro system was only listed on the "Yesterday's Enterprise" alternate timeline tactical situation monitor showing progress of the Klingon war with the Federation, and a later re-use of this chart in "The Wounded". The stellar notation using the Greek language letter "alpha" indicates that there might be a star group or constellation of some sort named "Shiro", of which Alpha Shiro would logically be indicated to be the most prominent star or system.