Denebola 3151.svg
System Information
X:Y Coordinates-37.843 : -1.621[e]
Spectral classK0V[1]

The Denebola system was home to at least one habitable world, Denebola V, and as of 3151 was located in the Wolf Empire.[2]

System Description[edit]

Denebola is located near the Oliver and Zavijava systems[3][4] and consists of a class K0V orbited by ten worlds.[1]

System History[edit]

The Denebola system was colonized during the First Exodus from Terra[5] and was briefly and independent world before being incorporated into the Terran Hegemony.[5][1][6][7]

Political Affiliation[edit]

Denebola V[edit]

Denebola V
Also known asEverwood,[1]
System positionFifth[1]
Jump Point distance5 days[1]
Surface gravity1.13[1]
Atmospheric pressureStandard (Breathable)[1]
Equatorial temperature18°C[1]
Surface water67%[1]
Highest native lifeMammals[1]
Landmasses3 (Slovakia, Neurasia, Zadipos)[1]
History and Culture
Population1,078,000,000 (3130)[47][1]
Government and Infrastructure
Political LeaderPlanetary Governor
Military CommanderLegate Jorg Kampephos (3130)[47][1]
CapitalSt. Cameron[1]

Denebola V, more commonly known simply as Denebola to outsiders, or Everwood or Lyracropis by the local population,[1] is the fifth planet in the system.

Planetary History[edit]


Denebola was one of the first colonies to declare itself independent from the Terran Alliance after the uprising on Freedom.[1][5] This independence was a mixed blessing, as the population lost access to the Terran Alliance traders and support systems. In their place were a series of loose alliances and trade agreements in order to get the food and supplies they needed to survive on their cold world. Unfortunately the colony worlds that supported Denebola were also suffering from the Demarcation Declaration, and couldn't spare much. Planetary communications broke down, and poorly planned agriculture and disease wiped out many smaller settlements. Only two groups of colonists survived, one on Zadipos and the other on Neurasia. These two colonies were located on opposite sides of the world, and each isolated colony thought they were the only survivors on the planet.[1]

Denebola was the first world targeted by the Hegemony Armed Forces when Director-General James McKenna launched the third of his "campaigns of persuasion" to bring former Terran Alliance colonies into the Hegemony; the attack on Denebola came in or around 2335.[6] The Hegemony had already controlled Denebola once before, incorporating the system into the Hegemony around the time of the first of McKenna's campaigns of persuasion in 23162317,[48] but by the time of the third campaign, the system was independent again,[6][49] and notorious.[49] When the Terran Hegemony arrived, the two colonies discovered each other. During Denebola's integration into the Hegemony a disagreement between the colonies over which one would be the capital and planetary government threatened to break out into war; the population of Denebola—or Everwood or Lyracropis, the names given to the planet by the two independent colonies—consisted of the hardiest and most stubborn of the original colonists, who had adapted to living for years in relative isolation. Hegemony negotiators proposed a confederation style government where each colony would oversee its own internal affairs and a planetary council composed of members of both colonies would decide matters that affected the whole world. This government style worked well for many years, only being replaced by a single world government after the fall of the Star League. The population continued to maintain separate continental capitals on both continents throughout their history.[1] It was during the Star League era that Denebola was a member of the Tyrfing Province of the Hegemony.[12]

Succession Wars[edit]

During the Succession Wars, the Free Worlds League and Lyran Commonwealth fought over the world several times. The influx of new immigrants and bureaucracies of the Great Houses forced Denebola to form a single world government.[1]

First Succession War[edit]

The Free Worlds League annexed Denebola in 2785, assigning the newly formed Thirty-fourth Marik Militia as the planetary garrison and deploying a pair of Vincent-class corvettes as a naval picket for the system. The relatively light garrison was a result of how heavily deployed the Free Worlds League Military was—a result of the combined stresses of heavy fighting on the border with the Lyran Commonwealth, the ongoing annexation of former Hegemony worlds, and the invasion of the Capellan Confederation.[18]

The Lyran Commonwealth invaded Denebola in 2786, deploying the Fourteenth Lyran Guards as the invasion force, accompanied by a naval escort consisting of a pair of Commonwealth-class light cruisers, the LCS Odessa and LCS Porrima. Despite being outgunned, the FWLS Francisco and her sister ship gamely attempted to attack the Lyran invasion force, only for the opening volley of laser and missile fire from the Odessa to destroy the Francisco outright - at which point her sister ship fled the Denebola system, leaving the Thirty-fourth Marik Militia to attempt to resist the invasion without naval support.[18]

The Thirty-fourth had taken up residence in the battered facilities that had once been the home base of the SLDF 282nd Mechanized Infantry Division, and were still settling in when the Lyrans invaded. At the request of Colonel Hoshi DeWitt, the commanding officer of the Fourteenth, the Odessa and Porrima moved into orbit above Denebola and subjected the Thirty-fourth's base to a two-hour orbital bombardment that destroyed more than half the Marik forces outright. Having already lost a company of forces to Hegemony guerrillas, two companies of mixed armor and infantry forces from the Thirty-fourth went to ground and would spend months engaged in raids and resistance against the Fourteenth Lyran Guards, but the bulk of the survivors from the Thirty-fourth surrendered within two days of the Fourteenth's landing.[18]

Fourth Succession War[edit]

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. Denebola 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.[50][51][27]

Operation GUERRERO[edit]

Denebola was invaded in the Free Worlds League's first wave of Operation GUERRERO by the Sixth Free Worlds Legionnaires, the Atrean Hussars, and the Fourth Marik Militia. The main defenders consisting of a Skye March Militia unit were away conducting exercises on Caph with Gustafson's Grenadiers;[52] thus, the badly outgunned planetary militia in charge of defense turned the planet over to invaders without a shot being fired.[53]

Operation BROKEN FIST[edit]

Following the invasion of the Free Worlds League by the Skye and Bolan Provinces of the Lyran Alliance in what was termed Operation ÜBERSCHATTEN, Marshall Jeremy Brett took command of the local FWLM and launched a counteroffensive, under the name Operation BROKEN FIST. BROKEN FIST went beyond simply attempting to recapture worlds that the Lyrans had seized, striking into Lyran space at numerous worlds. Denebola was one of the worlds hit and was attacked by the League forces on the 1st of September 3068.[40] By the 20th of September the League forces had successfully captured Denebola.[54]


By the end of December 3079, Denebola was one of more than twenty planets to have suffered an outbreak of the Redburn Virus, and one of eight to suffer from an infection rate of more than 150 out of every 100,000 people, as well as a mortality rate of more than 30 per 100,000 from the virus. Denebola also had the unfortunate distinction of being the first planet to report a new communicable strain of the virus.[55]

Dark Age[edit]

In 3095, Denebola was the location of the Interstellar Expeditions Stellar and Planetary Exploration Department office in the Republic of the Sphere.[56] The long history of immigration on Denebola made acceptance of Devlin Stone's relocation program during the Dark Age easy for most of the inhabitants to accept, and they were rewarded by seeing their world become the capital of Prefecture VIII.[1]

Military Deployment[edit]




  • Thirty-fourth Marik Militia (pre–Lyran invasion)[18][58]
  • 2 Vincent-class corvettes (pre–Lyran invasion)[18]


  • Fourteenth Lyran Guards[59]



- The unit was at 40% strength, with 55% of their equipment featuring upgraded technology.



Denebola has three large continents that straddle its equator. These continents—named Slovakia, Neurasia, and Zadipos—were covered in forests and river systems in the thirty-second century. Most of the planetary population lived on these continents as Denebola was coming out of an ice age and the polar regions extended quite deeply into the temperate areas. The glaciers seen by the first colonists were impressive, reaching down into the higher tropical latitudes. This dramatically affected early Denebolian history.[1]

Planetary Locations[edit]

  • Clovis:
  • Fallen Star: the continental capital of Zadipos, located on the western edge of the continent; a thriving fishing community in the thirty-second century, and a regional defense post.[1]
  • Farway:[65]
    • Our Lady of the Lake Hospital:[66]
  • New Bonn: the continental capital of Neurasia; located on Lake Diamond, a large inland lake, New Bonn covers the entire northern shore of the lake in the thirty-second century and is home to a number of large logging and farming industries.[1]
  • St. Cameron: the planetary capital city, located on the Peninsula of Slovakia on eastern Rhyde. Home to the largest spaceport on Denebola in the thirty-second century, as well as the Prefecture capital building and the headquarters of the planetary militia.[1]

Companies and Industries[edit]



The second instance of Alchiba is actually Denebola. Thank you,
- Herbert Beas

BattleTech Line developer, 12 Jun 2012

Map Gallery[edit]

Nearby Systems[edit]

Closest 80 systems (80 within 60 light-years)
Distance in light years, closest systems first:
Zavijava 6.2 Oliver 8.1 Lipton 9.0 Chara 11.8
Afleir 13.5 Devil's Rock 13.8 Xi Ursae Majoris 13.9 Zosma 15.1
Castor 15.3 Pollux 15.3 Haddings 16.7 Graham 16.8
Thorin 17.2 Muphrid 19.8 Zollikofen 22.8 Menkent 24.6
Marcus 25.3 Tau Ceti 25.9 Alioth 26.2 Milton 26.9
Tabit 27.1 Mizar 27.8 Callison 28.1 Summer 28.5
New Dallas 29.4 Cor Caroli 29.8 Alchiba 30.1 Wyatt 30.2
Hechnar 32.2 Talitha 33.3 Rocky 33.8 Procyon 34.1
Rigil Kentarus 35.2 Dubhe 35.8 Sirius 35.8 Killbourn 35.9
Phecda 36.6 Yorii 37.5 Carver 37.6 Sol 37.9
Wing 38.5 Galatea 39.1 Chertan 39.4 Van Diemen 40.4
Bordon 40.6 Keid 41.8 Connaught 42.1 Lyons 43.0
Dieudonné 44.6 Nusakan 45.0 Syrma 45.4 New Home 46.4
Alhena 46.5 Alkalurops 46.9 Alcor 47.9 Outreach 48.0
Hall 48.9 Altair 49.1 Ko 49.6 Asta 50.0
Gacrux 50.2 Shiloh 50.4 Imbros 50.5 Caph 50.8
Acubens 51.2 Zebebelgenubi 51.2 Remulac 51.7 Bryant 52.3
Brownsville 52.5 Dieron 52.7 Irian 55.5 Nathan 55.9
Wasat 55.9 Skye 56.4 Aquileia 57.0 Alphard 57.4
Skondia 57.5 Atria 57.6 Fomalhaut 59.2 Epsilon Eridani 59.5


  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 1.14 1.15 1.16 1.17 1.18 1.19 1.20 1.21 1.22 1.23 1.24 1.25 1.26 1.27 1.28 1.29 Dark Age: Republic Worlds (3130), p. 183: "Denebola"
  2. 2.0 2.1 Shattered Fortress, p. 103: "Inner Sphere - 3151" (Map)
  3. 3.0 3.1 Era Report: 3145, p. 38: "Inner Sphere - 3145"
  4. 4.0 4.1 Field Manual: 3145, p. VI: "Inner Sphere - 3145"
  5. 5.0 5.1 5.2 5.3 5.4 Interstellar Expeditions: Interstellar Players 3, p. 52
  6. 6.0 6.1 6.2 6.3 6.4 The Star League, p. 18: "The Syrma Ambush"
  7. 7.0 7.1 Handbook: House Kurita, p. 18: "Draconis Combine Founding - 2319"
  8. Handbook: House Marik, p. 16: "Free Worlds League Founding [2271]"
  9. Handbook: House Steiner, p. 13: "Lyran Commonwealth Founding [2341]"
  10. Handbook: House Steiner, p. 25: "Lyran Commonwealth after Age of War [2571]"
  11. Handbook: House Marik, p. 24: "Free Worlds League after Age of War [2571]"
  12. 12.0 12.1 Historical: Reunification War, p. 159: "Inner Sphere - 2596"
  13. Era Report: 2750, p. 37: "Inner Sphere - 2750"
  14. Historical: Liberation of Terra Volume 1, p. 11: "Inner Sphere - 2765"
  15. Historical: Liberation of Terra Volume 1, p. 104: "Rim Worlds Republic - [2767] Map"
  16. 16.0 16.1 Historical: Liberation of Terra Volume 1, p. 138: "Operation LIBERATION Wave 1 [July 2772 - December 2774]"
  17. 17.0 17.1 Historical: Liberation of Terra Volume 2, p. 118: "Digesting the Hegemony"
  18. 18.0 18.1 18.2 18.3 18.4 18.5 18.6 18.7 18.8 18.9 First Succession War, p. 29: "Lyran Commonwealth Gains"
  19. First Succession War, p. 25: "Inner Sphere - [2786] Map"
  20. Handbook: House Steiner, p. 36: "Lyran Commonwealth after First Succession War [2822]"
  21. Handbook: House Marik, p. 34: "Free Worlds League after First Succession War [2822]"
  22. First Succession War, p. 113: "Inner Sphere - [2822] Map"
  23. Handbook: House Steiner, p. 40: "Lyran Commonwealth after Second Succession War [2864]"
  24. Handbook: House Marik, p. 38: "Free Worlds League after Second Succession War [2864]"
  25. Handbook: House Steiner, p. 47: "Lyran Commonwealth after Third Succession War [3025]"
  26. Handbook: House Steiner, p. 56: "Lyran Commonwealth after Fourth Succession War [3030]"
  27. 27.0 27.1 Handbook: House Marik, p. 51: "Free Worlds League after Fourth Succession War [3030]"
  28. Historical: War of 3039, p. 133: "Inner Sphere - 3040"
  29. Handbook: House Steiner, p. 59: "Lyran Commonwealth after War of 3039 [3040]"
  30. Era Report: 3052, p. 10: "Inner Sphere - 3050"
  31. Handbook: House Steiner, p. 61: "Lyran Commonwealth after Clan Invasion [3052]"
  32. Era Report: 3062, p. 11: "Inner Sphere - 3057"
  33. Handbook: House Marik, p. 54: "Free Worlds League after Operation Guerrero [3058]"
  34. 34.0 34.1 Field Manual: Free Worlds League, p. 110: "Free Worlds League Deployment Table"
  35. Era Report: 3062, p. 29: "Inner Sphere - 3063"
  36. 36.0 36.1 Field Manual: Updates, p. 177: "Lyran Alliance Deployment Table"
  37. Handbook: House Steiner, p. 70: "Lyran Alliance after FedCom Civil War [3067]"
  38. Handbook: House Marik, p. 56: "Free Worlds League after FedCom Civil War [3067]"
  39. Jihad: Final Reckoning, p. 41: "Inner Sphere Map - [October 3067]
  40. 40.0 40.1 Jihad: Final Reckoning, p. 45: "The Jihad In Review"
  41. Jihad Secrets: The Blake Documents, p. 64: Inner Sphere [3075] Map
  42. Field Report: LAAF, p. 19: "Lyran Alliance Armed Forces Deployment Map - August 3079"
  43. Jihad: Final Reckoning, p. 63: "Inner Sphere - March 3081"
  44. Field Manual: 3085, p. vii: "Inner Sphere Map - [October 3085]"
  45. Era Report: 3145, p. 10: "Inner Sphere - 3135"
  46. Shattered Fortress, pp. 85–86: "The Wolf Pounces"
  47. 47.0 47.1 Dark Age: Republic of the Sphere, p. 18: "Prefecture VIII"
  48. Handbook: House Kurita, p. 18: "Draconis Combine Founding [2319]"
  49. 49.0 49.1 Jihad Hot Spots: Terra, p. 148: "Terran Hegemony"
  50. NAIS The Fourth Succession War Military Atlas Volume 2, p. 87: "Conclusion"
  51. Handbook: House Marik, p. 42: "Free Worlds League after Third Succession War [3025]"
  52. Field Manual: Lyran Alliance, p. 114
  53. Shattered Sphere, p. 74: "Operation GUERRERO, First Wave"
  54. Jihad: Final Reckoning, p. 46: "The Jihad In Review"
  55. Jihad: Final Reckoning, p. 13: "Plagued By Blake"
  56. Interstellar Expeditions: Interstellar Players 3, p. 12
  57. Field Manual: SLDF, p. 251: "SLDF - Terran Hegemony Military Command Map"
  58. First Succession War, p. 138: "First Succession War Deployment Table - FWLM"
  59. 59.0 59.1 First Succession War, p. 139: "Lyran Commonwealth Armed Forces (LCAF)"
  60. 60.0 60.1 House Steiner (The Lyran Commonwealth), p. 117: "Unit Deployment Table"
  61. Historical: War of 3039, p. 137: "Deployment Table"
  62. 20 Year Update, p. 27
  63. Field Manual: 3085, p. 187: "RAF Deployment Table - 3085"
  64. Field Manual: 3145, p. 144: "Republic Armed Forces - Principes Guards"
  65. Blood Avatar, ch. 1
  66. Blood Avatar, ch. 8