(References to Hyades Cluster)
Note: X and Y are coordinates (light years on XY plane) relative to Terra at (0, 0)
X: 183.34 Y: -393.55 based on the position of Flannagan's Nebulea
The Hyades Cluster is a cluster of stars located to the rimward of Terra near the borders of the Federated Suns and Capellan Confederation. It contains multiple habitable systems including Taurus, Samantha, Jamestown and Ishtar. The planet Taurus is the capital of the Taurian Concordat.
The Hyades Cluster is a roughly spherical open cluster of three to four hundred seperate stars that share a similar age and origin. From the perspective of Terra the Cluster lies in the constellation Taurus, where its brightest stars form a "V" within the constellation. This traditionally forms the Head of the bull that gives the constellation and nation that was spawned within its nebulea their names.
The Cluster was explored and settled by the Calderon Expedition in the early years of the 2250's. This expedition was funded and led by Samantha Calderon who spent her vast fortune buying ships and supplies in an attempt to flee the horrors of war that had engulfed the Inner Sphere. She led her 2300 followers into the unexplored reaches of the Hyades Cluster in an attempt to go so far from the Inner Sphere and its conflicts that a civilization without war or conflict could be developed in peace.
When they reached and explored the Cluster they found a plethora of rich worlds, hidden and protected by a dense gas and dust cloud. While penetrating this cloud an immense asteroid field was discovered, and the expedition lost some of their ships in this dangerous passage. This cloud of danger, named Flannegan's Nebulea, became the first and greatest line of defense for the colonists.
In 2253 the colonists made planetfall on Taurus, a resource rich fertile world that would one day become the capital of the Taurian Concordat. In the following years more worlds within the protective embrace of the nebulae were explored and colonized until today more than 3 additional worlds have been settled and are productive and valuable members of the Concordat to this day.
The Hyades Cluster is the fortress bastion of the Taurian Concordat and, with the exception of the Reunification War has never been conquered. The Reunification War campaign took four years and required troops from the Star League's I, II, III, IV, XI and Star Guard Corps. The VI Corps and Star Guard Corps provided the bulk of the forces used. This fighting was the last combat of the Reunification War.
During the Reunification War and Star League era the Hyades Cluster was home to a number of drydocks and shipyards scattered throughout the various systems and operated by Concordat Aerospace Limited; one of these facilities, located in the Taurus system, was capable of manufacturing WarShips.
Besides the resident militia and noble house forces the Taurian Concordat keeps regiments of front line units stationed to protect the planets of the Cluster. Traditionally these are the Taurian Guards Corps as well as other front line units that are brought in to rest and refit in the relative safety of the Cluster worlds. 
In addition to the line Regiments there are the TDF Special Asteroid Support Force or SASF. The SASF is a specialized all volunteer body of soldiers and naval personel trained in zero-g tactics that man the defensive platforms located throughout the Flannagan's Nebulea asteroid belt.
- 2571 - Taurian Concordat 
- 2822 - Taurian Concordat 
- 2864 - Taurian Concordat 
- 3025 - Taurian Concordat 
- 3030 - Taurian Concordat 
- 3040 - Taurian Concordat 
- 3058 - Taurian Concordat 
- 3067 - Taurian Concordat 
- 3130 - Taurian Concordat 
Planets within 2 jumps (60 light-years). Closest planets first:
- The Periphery, p. 71
- wikipedia.org, Hyades Cluster
- Inner Sphere (sourcebook), p. 103
- The Periphery 2nd Edition, p. 10
- Era Report: 2750, p. 14
- Era Report: 2750, p. 22
- Era Report: 2750, p. 23
- Field Report 2765: Periphery, p. 11, "Infrastructural Integrity"
- The Periphery, p. 77
- The Periphery, p. 80
- The Periphery, p.81