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Note: X and Y are coordinates (light years on XY plane) relative to Terra at (0, 0)
Zosma nearby systems (3151)
|X:Y Coordinates||-50.158 : -10.386[e]|
|Recharge time||165 hours|
- 1 Zosma
- 2 Zosma III
- 2.1 Planetary History
- 2.2 Political Affiliation
- 2.3 Planetary Rulers
- 2.4 Military Deployment
- 2.5 Geography
- 2.6 Planetary Locations
- 2.7 Nearby Systems
- 2.8 References
- 2.9 Bibliography
The system primary of the Zosma system, a class A4V star, is a blazing-hot white sun twice the size of Sol that occasionally pulses in size due to its inherent gravitational instability. Four planets orbit the star, accelerated to breakneck speeds by the gravitational instability of the star. Zosma is located near the Afleir and Marcus systems.
The Zosma system was settled during the First Exodus from Terra, having stunned the scientific community with the discovery that the system not only had four planets but that one of those planets was at least marginally capable of supporting human life. Scientists had long assumed that the instability of the star and the effect that instability would have on any bodies in the system made it impossible for planets to form around the star, let alone a life-supporting planet, and the subsequent discovery of four rocky worlds orbiting the star shocked the interstellar community. The system was subsequently colonized during the era of the Terran Alliance.
The world was though barely habitable and with no relevant industrial capacity.
| Jump point
|Atmospheric pressure||Thin (Breathable)|
|Equatorial temperature||67°C (Arid)|
|Highest native life||Plant|
|Reference Year||3067 - 3130|
|Ruler|| Joshua Catall, Mayor (3067)|
Chavah Areef, Governor (3130)
Hadassah Sadira, Legate (3130)
|Population|| 292,135,000 (3067)|
Zosma III - more commonly referred to simply as Zosma - is the third planet of four in the Zosma system.
The colonists who settled on Zosma were forced to live in sealed habitats to protect them from the solar radiation produced by the system primary, and those habitats provided only limited protection against the planet-wide earthquakes that struck periodically when the system primary underwent periods of instability. It was almost impossible for the colonists to grow enough food to support themselves, making the colony heavily dependent on supplies of food from off-world and deliveries from ice ships, both of which the colonists obtained by trading with the abundant metallurgical resources they extracted from Zosma's interior.
Life on Zosma was harsh enough thanks to the environment and constrained resources that the colonists imposed harsh laws to both control population numbers and growth and to regulate resources; the severity of these laws increased after the collapse of the Terran Alliance, with the government devolving into a military dictatorship that would remain in place for centuries.
Having become independent as a result of the Demarcation Declaration, Zosma was subsequently added to the resurgent Terran Hegemony; whilst some worlds joined the Hegemony during its early years as a result of diplomatic and trade incentives, many more were conquered in "campaigns of persuasion" launched by Director-General James McKenna, the first of which began in 2316 and ended with the capture of Towne in 2317. Zosma was one of the worlds added to the Hegemony during or around the time of this first military campaign. By the end of the Reunification War, Zosma was a member of the Tyrfing Province of the Terran Hegemony.
Zosma became a part of the Border Protectorate of the Free Worlds League and spent the Succession Wars on constant alert against incursions from the Lyran Commonwealth. The military government was primarily concerned with defense, and attempts at internal dissent brought a swift response, with each instance being considered a sign of potential treachery. This resulted in a reign of terror that lasted until the Fourth Succession War.
Fourth Succession War
Following the sudden invasions of several League worlds by the Tikonov Free Republic and a daringly successful invasion of Callison by mercenaries employed by the Lyran Commonwealth in mid-3029, Captain-General Janos Marik found himself in the midst of an unanticipated crisis. In addition to the conquest of Callison, LCAF communications traffic and movements had spiked sharply, creating the impression of an impending offensive against the League. Faced with what he believed to be the plausible threat of a large-scale attack aimed at the region of the League near Terra, Janos was more concerned with saving the six or seven assorted BattleMech regiments present within the region than he was with retaining the worlds, as he believed that the offensive would most likely be aimed at snipping off the corner of the League closest to Terra - and to both the Federated Suns and the Tikonov Free Republic. Zosma was one of the systems abandoned by Janos, who would learn later that he had been deceived by an effective campaign of smoke and mirrors arranged by the Commonwealth General of the Armies, Edward Regis, to deter the League from launching an invasion of the Commonwealth while the LCAF was heavily committed to its invasion of the Draconis Combine.
The Federated Commonwealth attempted to boost the economy of Zosma and loosen local restrictions after the Fourth Succession War, but these efforts met with only limited success.
Zosma was invaded in the second wave of Operation GUERRERO by the Ninth Marik Militia. The defending Planetary Militia were no match for the invading Marik forces. The reclamation of Zosma by the Free Worlds League saw the minor improvements to life on Zosma made by the Commonwealth vanish.
In late June 3070, the planetary government and military forces on Zosma switched their allegiance to the Word of Blake, bringing the world into the Word of Blake Protectorate; Zosma was one of six worlds to declare for the Blakists in the space of a week, pushing the Protectorate into Free Worlds League space.
In 3076 the Word of Blake deployed one Level III of the First Zosma Protectorate Militia Division to Dyev as part of a counter-assault against invading forces from Clan Ghost Bear while the rest of it was assigned to defend CHara. The apparent destruction of the various Divisions assembled on Dyev by the Word of Blake may explain why, when the Seventeenth Arcturan Guards attempted to raid Zosma in the second half of 3077, they found the planet to be almost undefended. As a result, the brief raid turned into an all-out conquest in which the Guards quickly crushed the defending forces, the all-volunteer Corporate Security Protection Force (CSPF), an unanticipated success for the Lyran front of Operation SCOUR.
The Dark Age
Little had changed on Zosma from it's pre-Blakist status when the system was ceded to the Republic of the Sphere. Even as late as the mid-thirty-second century visitors to Zosma were subject to restrictions and a heavy security presence imposed across the population by the planetary government to ensure continued planetary balance and control and sustain the scarce resources available. All offworld visitors had to access the planet through Duhr Prime, the capital city, although a the planet had a second suborbital transit hub, located at Fort Amadeus.
- 2271 - Inhabited world 
- 2319 - Terran Hegemony 
- 2341 - Terran Hegemony 
- 2366 - Terran Hegemony 
- 2571 - Terran Hegemony 
- 2596 - Terran Hegemony 
- 2750 - Terran Hegemony 
- 2764 - Terran Hegemony 
- 2765 - Terran Hegemony 
- 2767 - Amaris Empire 
- 2771 - Amaris Empire 
- 2773 - Terran Hegemony (from March)
- 2786 - Terran Hegemony 
- 2822 - Lyran Commonwealth 
- 2864 - Lyran Commonwealth 
- 3025 - Free Worlds League 
- 3030 - Lyran Commonwealth 
- 3040 - Federated Commonwealth 
- 3050 - Federated Commonwealth 
- 3052 - Federated Commonwealth 
- 3057 - Federated Commonwealth 
- 3058 - Free Worlds League 
- 3063 - Free Worlds League 
- 3067 - Free Worlds League 
- 3070 - Word of Blake Protectorate (from August)
- 3075 - Word of Blake Protectorate 
- 3079 - Word of Blake Protectorate 
- 3081 - Republic of the Sphere 
- 3085 - Republic of the Sphere 
- 3130 - Republic of the Sphere 
- 3135 - Independent world 
- 3145 - Wolf Empire 
- Mayor Joshua Catall
Zosma is a rocky, arid world with a thin atmosphere; subject to brutal levels of year-round heat from the system primary star and possessing nutrient poor soil, there are few species of native flora on the planet. The planet is subject to occasional planet-wide earthquakes precipitated by contractions in the system primary but possesses abundant metal and mineral resources. There are two micro-oceans on the surface of the planet; the larger of the two is named the Scalding Sea, while the second, smaller micro-ocean is named the Shallow Sea and is located in the southern hemisphere.
- Duhr Prime: the planetary capital city, located on the shores of the Scalding Sea and the only legal point of entry to Zosma for outworlders in the thirty-second century.
- Fort Amadeus: suborbital transit hub located near the Shallow Sea.
| Closest 76 systems (75 within 60 light-years)|
Distance in light years, closest systems first:
|Devil's Rock||14.8||Denebola||15.1||New Dallas||15.8||Wyatt||17.2|
|Phecda||25.8||Bordon||26.4||Xi Ursae Majoris||26.5||Graham||26.6|
- Handbook: House Marik, p. 76, "Zosma Planet Profile"
- Dark Age: Republic Worlds (3130), p. 205, "Zosma"
- Era Report: 2750, p. 37, "Inner Sphere -  Map"
- Total Chaos, p. 88-89, "ZOSMA"
- Dark Age: Republic of the Sphere, p. 18 "Prefecture VIII"
- The Star League, p. 16, "Terra's Errant Flock"
- Handbook: House Marik, p. 16, "Free Worlds League Founding "
- Handbook: House Kurita, p. 18, "Draconis Combine Founding -  Map"
- Historical: Reunification War, p. 159, "Inner Sphere -  Map"
- NAIS The Fourth Succession War Military Atlas Volume 2, p. 87, "Conclusion"
- Handbook: House Marik, p. 42, "Free Worlds after Third Succession War -  Map"
- Handbook: House Marik, p. 51, "Free Worlds after Fourth Succession War -  Map"
- Shattered Sphere, p. 75, "Operation Guerrero, Second Wave"
- Jihad: Final Reckoning, p. 48, "The Jihad In Review"
- Jihad: Final Reckoning, p. 126, "Word Of Blake Militia"
- Jihad Hot Spots: Terra, p. 64-65, "3077: War In Review"
- Handbook: House Steiner, p. 13, "Lyran Commonwealth Founding -  Map"
- Handbook: House Liao, p. 17, "Capellan Confederation Foundation ]"
- Handbook: House Liao, p. 25, "Capellan Confederation After Age of War ]"
- Handbook: Major Periphery States, p. 18, "Rim Worlds Republic after Age of War -  Map"
- Handbook: House Marik, p. 24, "Free Worlds League after Age of War -  Map"
- Handbook: House Steiner, p. 25, "Lyran Commonwealth after Age of War -  Map"
- Handbook: Major Periphery States, p. 25, "Rim Worlds Republic at the Fall of the Star League -  Map"
- Field Manual: SLDF, p. vii, "Inner Sphere -  Map"
- Historical: Liberation of Terra Volume 1, p. 11, "Inner Sphere -  Map"
- Field Report 2765: Periphery, p. 38, "Rim Worlds Army Deployment Map - "
- Field Report 2765: Lyran Commonwealth, p. 25, "Lyran Commonwealth Armed Forces Deployment Map - "
- Field Report 2765: Free Worlds League, p. 25, "Free Worlds League Militia Deployment Map - "
- Historical: Liberation of Terra Volume 1, p. 104, "Rim Worlds Republic -  Map"
- Historical: Liberation of Terra Volume 1, p. 138, "Operation LIBERATION Wave 1 [July 2772 - December 2774]"
- First Succession War (Source Book), pp. 24-25, "Inner Sphere -  Map"
- Handbook: House Steiner, p. 36, "Lyran Commonwealth after First Succession War -  Map"
- Handbook: House Marik, p. 34, "Free Worlds after First Succession War -  Map"
- Historical: Liberation of Terra Volume 2, p. 122-123, "Inner Sphere -  Map"
- First Succession War (Source Book), pp. 112-113, "Inner Sphere -  Map"
- Handbook: House Steiner, p. 40, "Lyran Commonwealth after Second Succession War -  Map"
- Handbook: House Marik, p. 38, "Free Worlds after Second Succession War -  Map"
- House Marik (The Free Worlds League), p. vii, "Free Worlds League Map - "
- Handbook: House Steiner, p. 47, "Lyran Commonwealth after Third Succession War -  Map"
- Handbook: House Steiner, p. 56, "Lyran Commonwealth after Fourth Succession War -  Map"
- Handbook: House Steiner, p. 59, "Lyran Commonwealth after War of 3039 -  Map"
- Historical: War of 3039, p. 132, "Inner Sphere -  Map"
- Era Report: 3052, p. 10, "Inner Sphere -  Map"
- Handbook: House Steiner, p. 61, "Lyran Commonwealth after Clan Invasion -  Map"
- Era Report: 3052, p. 22, "Inner Sphere -  Map"
- Era Report: 3062, p. 10, "Inner Sphere -  Map"
- Handbook: House Marik, p. 54, "Free Worlds League after Operation Guerrero -  Map"
- Era Report: 3062, p. 29, "Inner Sphere -  Map"
- Inner Sphere (sourcebook), p. 61, "Free World League Map"
- Handbook: House Marik, p. 56, "Free Worlds after FedCom Civil War -  Map"
- Handbook: House Steiner, p. 70, "Lyran Commonwealth after FedCom Civil War -  Map"
- Jihad: Final Reckoning, p. 42, "Inner Sphere -  Map"
- Jihad Secrets: The Blake Documents, p. 65, "Inner Sphere -  Map"
- Field Report: Clans, p. 29, "Terran Corridor/Clans Deployment Map - [August 3079]"
- Field Report: LAAF, p. 19, "Lyran Alliance Armed Forces Deployment Map - [August 3079]"
- Field Report: FWLM, p. 17, "Free Worlds League Military Deployment Map - [August 3079]"
- Jihad: Final Reckoning, p. 62, "Inner Sphere -  Map"
- Field Manual: 3085, p. vii, "Inner Sphere -  Map"
- Map of the Inner Sphere 3130
- Era Report: 3145, p. 10, "Inner Sphere -  Map"
- Era Report: 3145, p. 39, "Inner Sphere -  Map"
- Field Manual: 3145, p. VI, "Inner Sphere -  Map"
- First Succession War (Source Book), p. 139, "First Succession War Deployment Table - LCAF"
- House Marik (The Free Worlds League), p. 109, "Unit Deployment Table"
- Field Manual: Free Worlds League, p. 113, "Free Worlds League Deployment Table"
- Field Manual: Updates, p. 161, "Free Worlds League Deployment Table"
- Field Manual: 3145, p. 170, "Clan Force Deployments - Wolf Empire"
- Dark Age: Republic Worlds (3130)
- Era Report: 2750
- Era Report: 3052
- Era Report: 3062
- Era Report: 3145
- Field Manual: 3085
- Field Manual: 3145
- Field Manual: SLDF
- Field Manual: Free Worlds League
- Field Manual: Updates
- Field Report 2765: Free Worlds League
- Field Report 2765: Lyran Commonwealth
- Field Report 2765: Periphery
- Field Report: FWLM
- Field Report: LAAF
- Field Report: Clans
- First Succession War
- Handbook: House Kurita
- Handbook: House Liao
- Handbook: House Marik
- Handbook: Major Periphery States
- Historical: Liberation of Terra Volume 1
- Historical: Liberation of Terra Volume 2
- Historical: Reunification War
- Historical: War of 3039
- House Marik (The Free Worlds League)
- Inner Sphere (sourcebook)
- Jihad: Final Reckoning
- Jihad Hot Spots: Terra
- Jihad Secrets: The Blake Documents
- Map of the Inner Sphere 3130
- NAIS The Fourth Succession War Military Atlas Volume 2
- Shattered Sphere
- The Star League
- Dark Age: Republic of the Sphere