Altahe
From Mass Effect Wiki
| Altahe Milky Way / Styx Theta / Acheron | |
| |
| Planetary Map | |
| Orbital Distance: | 0.8 AU |
| Orbital Period: | 0.8 Earth Years |
| Keplerian Ratio: | 0.8 |
| Radius: | 4,404 km |
| Day Length: | 53.8 Earth Hours |
| Atm. Pressure: | 0.98 atm |
| Surface Temp: | 36 °C |
| Surface Gravity: | 1.1 g |
| Mass: | 0.521 Earth Masses |
| Satellites: | special |
Location: Milky Way / Styx Theta / Acheron System / Second planet
Prerequisite: Noveria
Contents |
[edit] Description
Altahe is an exceptional form of planet called a Roche World. Put simply, it is one half of a pair of small and unusually dense terrestrial worlds (Altahe and Ontahe) that orbit each other so closely, they effectively share a single atmosphere. That does not mean one could fly from one to the other, but both have identical atmospheres and dust from one often can be found on the other.
Both worlds share an atmosphere of nitrogen and ethane. The surface is warm, and mainly composed of silica dust and dark basaltic rocks, with extensive deposits of heavy metals and radioactives. Tidal effects from Ontahe create constant heavy wind.
[edit] Assignments
- Assignment: UNC: Listening Post Theta
- Collection: UNC: Asari Writings: Matriarch's Writings ×1
- Survey: UNC: Valuable Minerals: Heavy Metal ×1 / Rare Element ×1
[edit] Points of Interest
| Location | Appearance | Description |
|---|---|---|
| ➊ | Initial | Listening Post (UNC: Listening Post Theta) |
| ➋ | Initial | Anomaly (UNC: Asari Writings). If you listen carefully while near the wreckage, you can hear the rachni singing. "This downed satellite had one of Matriarch Dilinaga's writings stored in its payload. Whether it was placed before or after it crashed is uncertain." |
| ➌ | Discovery | Crashed Pod (salvage) |
| ➍ | Unmarked | Rachni colony |
[edit] Mineral Deposits
- Main article: UNC: Valuable Minerals
| Location | Class | Element |
|---|---|---|
| ➊ | Rare | Samarium |
| ➋ | Heavy | Gold |
[edit] Lifeforms
These rachni appear regardless of whether or not you allow the Rachni Queen on Noveria to live, as they were sent to Depot Sigma-23 before the lockdown at Peak 15.
[edit] Satellites
Ontahe is strictly speaking the second partner in a dual system, Charon to Altahe's Pluto. Both likely orbit with synchronous rotation to one another; Ontahe is always in the same place in Altahe's sky and always shows the same face.
[edit] Trivia
At the Mako landing site, Ontahe is visible near the horizon. This hints that the Mako has landed far from the equator (where Ontahe would be directly overhead), around one of the arctic circles.

