geology: halx 21185 Ba, hereafter referred to as binary I, is an oceanic superearth (~94% water). binary I inhabitants refer to the planet as oceania. binary I has abundant oxygen levels, holding at about 35%. BI has an orbital period of 294 days (days it takes to make a complete trip around its sun). it is 2.4 earths (~9.1M). its thicker atmosphere and frequent storm weather makes for yellow clouds and tropical average temperatures.

halx 21185 Bb, hereafter referred to as binary II, is tidally locked. the introduction of a new moon (3 total) has tidally locked the planet (its orbit period is the same speed as its rotation). its habitable zone is skewed center-right because its mid ocean ridge occurs just along the side. The ocean ridge occurs curving under the ice sheet, creating relatively habitable temperatures along it. tidally locked planets hold a habitable zone in a small around the middle point, the side facing the sun is scorched uninhabitable desert. the side facing away is uninhabitablefrozen tundra. resources and liveable land is scarce.

halx 21185 D, hereafter referred to as hyem, is a glacial super earth. it occurs furthest from halx 21185 A (the sun). it is 6.38 earths with an orbital period of 24.7 days. the planet is mostly ice except for a notable ring of mountains forming a fully encompassing cirque. A cirque is a ridged ring of mountains carved out by glaciers. within the tarn (lake found inside a cirque) is a mass of land in which the inhabitants dwell. This creates a distinct eyeball shape when viewed from above. i based hyem off of the real planet LHS 1140 B.

biology: as of right now, the only biological attributes i have fleshed out is solely for binary I. high oxygen levels in binary I make significant changes to biological makeup. increased immune systems have created more aggressive bacteria for outworlders, larger flora, and sea gigantism occur to handle the raised oxygen levels. most above water species process oxygen through respiratory diffusion to offset the need for significantly larger bodies than the ecosystem can handle. working out the specifics, but it is a mix of hemolymphs and trachea systems (think abt how big bugs got during the carboniferous period). off world visitors utilize a mix of mobile ventilators and oximeters to prevent toxicity. there are currently two designs for the oximeters, one that connects to the earlobes and one that is a film and wire attached to a ring. the earlobe version is more expensive but higher quality. less likely to break and slower to oxidation. however, the film and wire one os easier to replace. both experience rusting significantly faster than if it were a normal environment. to obtain/replace one, you have to purchase it through BAHC stationaries.