This article is undergoing revision as part of Project: Planets, a collaborative effort to improve BattleTechWiki's coverage of planets and systems. If you would like to participate, please visit the project page, where you can add your name to the list of volunteers.

This article has completed Phase 5 of the Overhaul effort.


Note: X and Y are coordinates (light years on XY plane) relative to Terra at (0, 0)

Eltanin neighbouring systems
Eltanin neighbouring systems
System information
X:Y Coordinates -1.91 : 99.37[e]
Spectral class K5IV[1]
Planets 11[1]

The Eltanin system is the location of at least one inhabited world, Eltanin III, and as at 3145 was located in the Skandia Province of the Rasalhague Dominion.[2][3]

System Description[edit]

The Eltanin system is located near the Kaus Borealis and Vega systems[2][3] and consists of a class K5IV primary orbited by eleven planets.[1]

System History[edit]

The Eltanin system was either settled during or shortly after the First Exodus from Terra.[4]

Eltanin III[edit]

Orbital view
Orbital view
System position 3[1]
Jump point
8 days[1]
Moons 1 (Brodi)[1]
Surface gravity 0.73[1]
Atmospheric pressure Standard (Breathable)[1]
Equatorial temperature 42°C[1]
Surface water 41%[1]
Highest native life Plants[1]
Reference Year 3130[1]
Ruler Chiho Saito (Governor)[1]
Loren Kraven (Planetary Legate)[1]
Capital Dry Springs[1]
Population 143,000,000[1]

Eltanin III - more commonly known simply as Eltanin - is the third planet in the system and has a single moon, named Brodi.[1]

Planetary History[edit]

Early History[edit]

When first settled, Eltanin was a world with significant amounts of agricultural, petrochemical and mineral wealth and a population of local lifeforms. The easily accessible resources on Eltanin were more than offset, however, by the presence of a virus that caused the "Eltanin Brain Fever", an airborne virus that destroyed the central nervous system of the host, after causing a number of other debilitating symptoms including seizures and blindness. Strangely, even the native lifeforms were not immune to the virus and eventually they all became extinct. Terran animals and humans were able to survive by using a series of inoculations and antiviruals, but even after centuries of occupation the virus remained deadly.[1]

Eltanin also posed other problems beyond that of the Eltanin Brain Fever; the planet was also prone to increasingly erratic climate change, something that scientists identified as likely being related to signs of instability within the system primary. Estimates indicated that the star was showing all of the signs of reaching the end of its stable life, and that it could go nova in as little as eight thousand years. The citizenry responded to the threat of the sun going nova by creating one of the most efficient disaster-preparation plans ever conceived of by humans. Eltanin emergency service agencies train edfor every disaster they can think of, ranging from forest fires to an order to evacuate the world. By the Dark Age Eltanin boasted no less than fifty-nine individual spaceports. Although most were in mothballs, the spaceports could be opened and ready for traffic in a matter of hours if the need for a planetary evacuation arrived. The bulk of the spaceports were controlled by Eltanin Interplanetary, a local transport consortium which operated both day-to-day transport services for the various islands on Eltanin as well as a fleet of shuttlecraft and small and medium-sized DropShips.[1]

The Jihad[edit]

Eltanin was occupied by the Word of Blake during the Jihad; in late August 3075 forces from Clan Ghost Bear[5][6] led by Delta Galaxy and designated Delta Wave by the Ghost Bears[7] arrived and launched a campaign to liberate the planet, ignoring all hails from Draconis Combine forces[5][6] and securing the flank of the Ghost Bear push towards Terra.[7]

Political Affiliation[edit]

Planetary Rulers[edit]


  • Planetary Governor Chiho Saito[1]
  • Planetary Legate Loren Kraven[1]


The geography of Eltanin is dominated by two supercontinents, one located in the northern hemisphere and one in the southern. The northern superconitnent is named Platonesia, and the southern supercontinent is named Anterratica. In addition to the two supercontinents Eltanin has a host of large islands in the oceans between the two supercontinents.[1]

Planetary Locations[edit]

  • Burmah: the second largest city on Eltanin and headquarters of Eltanin Interplanetary; located on Anterratica.
  • Dry Springs: the planetary capital city, located on Platonesia.[1]

Nearby Systems[edit]

Systems within 60 light-years (distance in light years)
Closest systems first:
Vega 7.5 Kaus Borealis 13.6 Alnasi 17.3 New Wessex 17.6
Kaus Australis 17.6 Konstance 18.5 Kessel 19.2 Cebalrai 21.0
Kaus Media 21.5 Alrakis 25.1 Kannon 27.0 Nai-Stohl 27.2
Alya 28.4 Tsukude 29.8 Baxter 32.2 Komephoros 33.0
Kimball II 33.8 Ascella 33.8 Balkan 34.1 Shionoha 35.2
Moore 36.1 Dromini VI 38.3 Marfik 38.7 Phalan 39.4
La Blon 39.9 Altais 40.5 Kuzuu 41.1 Corridan IV 42.3
Sabik 43.6 Talisker 43.7 Ryde 44.1 Lambrecht 44.5
Rukbat 45.0 Shitara 45.2 Accrington 46.3 Yed Posterior 46.7
Eaglesham 47.3 Aubisson 47.6 Lone Star 49.0 Atria 49.7
Skondia 53.0 Unukalhai 53.3 Kingtribel 55.2 Elix 55.4
Chaville 55.9 Sakhalin 56.8 Ko 57.8 Izar 58.1
Alexandria 58.2 Alphecca 58.4 Buckminster 58.6 Dyev 59.0
Shimosuwa 60.0


  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 Dark Age: Republic Worlds (3130), p. 12, "Eltanin World Profile"
  2. 2.0 2.1 2.2 Era Report: 3145, p. 39, "Inner Sphere Map - [3145]"
  3. 3.0 3.1 3.2 Field Manual: 3145, p. VI, "Inner Sphere - 3145"
  4. 4.0 4.1 Handbook: House Kurita, p. 18, "Draconis Combine Founding" - 2319
  5. 5.0 5.1 5.2 Jihad Hot Spots: Terra, p. 18, "Timeline of the Jihad"
  6. 6.0 6.1 6.2 Jihad: Final Reckoning, p. 54, "The Jihad In Review"
  7. 7.0 7.1 Field Report: Clans, p. 9, "Delta Galaxy"
  8. Handbook: House Steiner, p. 13, "Lyran Commonwealth Founding (2341)"
  9. Handbook: House Steiner, p. 25, "Lyran Commonwealth after Age of War [2571]"
  10. Handbook: House Kurita, p. 31, "Draconis Combine after Age of War - 2571"
  11. Historical: Reunification War, p. 159, "Inner Sphere Map [2596]"
  12. Era Report: 2750, p. 37, "Inner Sphere - 2750"
  13. Field Manual: SLDF, Inner Sphere - [2764]
  14. Historical: Liberation of Terra Volume 1, p. 11, "Inner Sphere - 2765"
  15. Handbook: House Kurita, p. 43, "Draconis Combine after First Succession War - 2822"
  16. Handbook: House Steiner, p. 36, "Lyran Commonwealth after First Succession War [2822]"
  17. Historical: Liberation of Terra Volume 2, p. 122-123, "Inner Sphere - 2822"
  18. Handbook: House Kurita, p. 53, "Draconis Combine after Second Succession War - 2864"
  19. Handbook: House Steiner, p. 40, "Lyran Commonwealth after Second Succession War [2864]"
  20. House Steiner (The Lyran Commonwealth), p. 68, "Hanging On"
  21. House Kurita (The Draconis Combine), p. 193, "Draconis Combine - Map"
  22. House Kurita (The Draconis Combine), "Draconis Combine Map - [3025]"
  23. Handbook: House Kurita, p. 64, "Draconis Combine after Third Succession War - 3025"
  24. House Steiner (The Lyran Commonwealth), Lyran Commonwealt Map [3025]
  25. Handbook: House Steiner, p. 47, "Lyran Commonwealth after Third Succession War [3025] Map"
  26. Handbook: House Kurita, p. 66, "Draconis Combine after Fourth Succession War - 3030"
  27. Handbook: House Steiner, p. 56, "Lyran Commonwealth after Fourth Succession War [3030] Map"
  28. Historical: War of 3039, p. 133, "Inner Sphere - 3040"
  29. Handbook: House Kurita, p. 68, "Draconis Combine after War of 3039 - 3040"
  30. Handbook: House Steiner, p. 59, "Lyran Commonwealth after War of 3039 [3040] Map"
  31. Era Report: 3052, p. 11, "Inner Sphere - 3050"
  32. Era Report: 3052, p. 23, "Inner Sphere - 3052"
  33. Handbook: House Kurita, p. 71, "Draconis Combine after Operation REVIVAL - 3052"
  34. Handbook: House Steiner, p. 61, "Lyran Commonwealth after Clan Invasion [3052] Map"
  35. Era Report: 3062, p. 11, "Inner Sphere Map [3057]"
  36. Era Report: 3062, p. 29, "Inner Sphere Map [3063]"
  37. Handbook: House Kurita, p. 74, "Draconis Combine after FedCom Civil War - 3067"
  38. Handbook: House Steiner, p. 70, "Lyran Commonwealth after FedCom Civil War [3067] Map"
  39. Jihad: Final Reckoning, p. 42, "Inner Sphere Map - [October 3067]
  40. Jihad Secrets: The Blake Documents, p. 65, "Inner Sphere [3075]"
  41. Field Report: DCMS, p. 21, "Draconis Combine Mustered Soldiery Deployment Map - August 3079"
  42. Field Report: LAAF, p. 19, "Lyran Alliance Deployment Table [3079]"
  43. Jihad: Final Reckoning, p. 63, "Inner Sphere Map - [March 3081]"
  44. Field Manual: 3085, p. 127, "Inner Sphere Map - [October 3085]"
  45. Map of the Inner Sphere 3130
  46. Era Report: 3145, p. 11, "Inner Sphere Map - [3135]"