An Ellipsoid Atmosphere is a type of an Unusual Atmosphere known for having a surface that is ellipsoidal, not spherical.
- Because the atmosphere remains spherical, surface atmospheric pressure ranges from very high at the middle to very low at the ends.
- Breathable bands may exist at some point within the range of pressure.
Ellipsoid Atmospheres are known for having extremely uneven applications of atmosphere, air pressure, and environmental characteristics. This can lead to extremely variable environments and species that can dwell in one environment, but not in a neighboring one only a short distance away. The differences between niche species strongly tend to be more pronounced on an ellipsoidal world.
History & Background (Dossier)
Ellipsoidal atmospheres can be advantageous to curious sophont species as they have built in test beds for experimentation with different kinds of life support equipment, each catered to a different kind of atmosphere. Sophont species with ellipsoidal homeworlds are widely regarded throughout Charted Space as producing innovative, high quality, and superior life support equipment. Of course, these are very general statements, nevertheless such equipment sells better than many of their competitors.
References & Contributors (Sources)
- Marc Miller. Worlds and Adventures (Game Designers Workshop, 1977), 5.
- J. Andrew Keith. Exotic Atmospheres (Game Designers Workshop, 1983), 1-16. (Special Supplement 2 from the periodical Journal of the Travellers' Aid Society 17)
- Marc Miller. Referee's Manual (Game Designers Workshop, 1987), 22.
- Joe Fugate, J. Andrew Keith, Gary L. Thomas. World Builder's Handbook (Digest Group Publications, 1989), 64-68.
- Terrance McInnes, Dave Nilsen. World Tamer's Handbook (Game Designers Workshop, 1994), 11-17.
- Jon F. Zeigler. First In (Steve Jackson Games, 1999), 70,72.
- Paul Drye, Loren Wiseman, Jon F. Zeigler. Interstellar Wars (Steve Jackson Games, 2006), 125-6.
- Gareth Hanrahan. Mongoose Traveller Main Rulebook (Mongoose Publishing, 2008), TBD.
- Marc Miller. T5 Core Rules (Far Future Enterprises, 2013), 409.
- Paul Elliott. The Universal World Profile (Zozer Games, 2016), TBD.
- Author & Contributor: Lord (Marquis) and Master of Sophontology Maksim-Smelchak of the Ministry of Science