Eos
| ||
| Orbital characteristics | ||
| Mass (Kg) | 3.32E+07 | |
| Radius (Km) | 2,512 | |
| Solar Day (h) | 84.3 | |
| Orbital Period (days) | 110 | |
| Semi-Major Axis (Km) | 6.26E+07 | |
| Periapsis (AU) | .418 | |
| Apoapsis (AU) | .418 | |
| Albedo | .88 | |
| Surface Temperature (K) | 1,050 | |
| Surface Gravity (m/s^2) | 3.19 | |
| Axial Tile (degrees) | 14.6 | |
| Inclination (degrees) | 7.6 | |
| Orbital Speed (Km/s) | 41.2 | |
| Atmospheric Characteristics | ||
| Albedo | .88 | |
| Atmosphere Mass (kg) | 4.8E+20 | |
| Mass of Air Column (kg) | 6,054,914.19209738 | |
| Surface Density (kg/m3) | 65 | |
| Mean Molecular Weight Dry Air (g/mol) | 43.45 | |
| Degrees of Freedom | 7 | |
| Specific Heat Const Pressure (Cv) | 861.106546605293 | |
| Lapse Rate Dry Adiabatic (K/m) | 0.00370627320407923 | |
| Emissivity IR | 1 | |
| Visual Temperature (K) | 33.4355979742048 | |
| Effective Temperature (K) | 185.783157394342 | |
| Surface Pressure (lb/in2) | 19324235.1482289 | |
| Co2PPMV | N/A | |
| Co2 Emissions (Metric Ton per Capita) | N/A | |
| Heat Capacity of Land J/(kg K) | N/A | |
| Heat Capacity of Sea J/(kg K) | N/A | |
Eos is the planet closest to the star Atos.
North Polar Regions
The North Polar region of Eos is characterized by its extensive icy landscapes, composed primarily of frozen methane and ammonia. Temperatures here are low, reaching far below the planet's average, leading to a stark, reflective surface. The region experiences prolonged periods of darkness and daylight, similar to Micras' polar areas, due to the planet's axial tilt. The terrain is dotted with towering mountains and vast plains of frost, making it one of the most hostile environments on Eos.
Equatorial Regions
Eos' Equatorial region presents a stark contrast to its poles, featuring a hot and arid climate. The area is predominantly covered by vast deserts of fine, golden dust that give the planet a distinctive yellowish hue. The equatorial zone experiences extreme temperatures, with daytime temperatures reaching their peak. Despite the harsh conditions, the region is marked by occasional weather phenomena such as dust storms and rare but intense bouts of precipitation. These weather patterns contribute to the formation of eroded canyons and sporadic oases, providing a temporary respite from the otherwise relentless heat.
Southern Polar Regions
Similar to the North, the South Polar region of Eos is dominated by a frozen landscape, though it is somewhat less severe in its conditions. The ice here is mixed with rocky outcrops, creating a more varied terrain. This area experiences slightly milder temperatures compared to the North Pole, allowing for the presence of liquid water beneath the surface ice during the warmer periods. The South Polar region also showcases a network of subglacial lakes, which are of great interest to scientists studying the potential for microbial life in extreme environments. The interplay between ice and rock gives this region a rugged beauty, with jagged cliffs and deep crevasses punctuating the otherwise smooth icy plains.
Ongoing Research
Exploration
Research Probes
IASS-00E1
| ||
| Orbital characteristics | ||
| Mass (Kg) | 3,625 | |
| Radius (Km) | 12.2(m) | |
| Solar Day (h) | N/A | |
| Orbital Period (days) | .227 | |
| Semi-Major Axis (Km) | 5,810 | |
| Periapsis (AU) | .0000299 | |
| Apoapsis (AU) | .0000478 | |
| Albedo | N/A | |
| Surface Temperature (K) | 318 | |
| Surface Gravity (m/s^2) | .00000000163 | |
| Axial Tilt (degrees) | 31 | |
| Inclination (degrees) | 31 | |
| Orbital Speed (Km/s) | 42.2 | |
The first of the research probes to be launched as part of the Inner Atos System Survey, the IASS-00E1 was deployed on 36/1/35 PSSC, and arrived in orbit in early 36 PSSC. Deployed on a mission to gather geographic and atmospheric data relating to the Eosian surface, the it is expected that the data collected of the IASS-00E1 will greatly aid researchers in their efforts to compile multiple detailed maps of the planet.
The probe, which traveled to within 180,841 kilometers of the planet's surface before rapidly descending to an orbit at only around 5,550 km from the surface, is designed to remain in orbit, following its arrival at the planet, for around four years. With that said, it is unclear whether the probe will be able to fully withstand the high temperatures and extreme tidal pressures which it will experience while in orbit around Eos.
Eos Topográfo (EosTopo)
| Mission | Date | Launch site | Spacecraft | Mission aim |
|---|---|---|---|---|
| EosTopo-1 | 19.III.1709 AN |  Delgado SFC
|
Eos Topógrafo | Eos flyby. Take first pictures of Eos. |
| EosTopo-2 | 23.V.1710 AN | Delgado SFC
|
Eos Topógrafo | Eos orbiter. |
| EosTopo-3 | 18.XIII.1712 AN | Delgado SFC
|
Eos Topógrafo | Eos orbiter and impacter. First impact landing on Eos. |
| EosTopo-4 | 20.IV.1714 AN | Delgado SFC
|
Eos Topógrafo | Eos orbiter and lander. First controlled landing on Eos. |
Mythology
In the religious cosmology of the Reformed Stripping Path, Eos is venerated as the divine personification of dawn, enlightenment, and spiritual renewal. Widely regarded as a manifestation of the Lady Divine Eos, the planet serves as both a physical and symbolic representation of her role in the celestial order. According to canonical myth, Eos traverses the sky each cycle to dispel darkness and ignorance, illuminating the path of awakening for all sentient beings.
Her appearance is traditionally associated with moments of revelation, clarity, and inner transformation. Devotees interpret the planet’s brilliance and orbital constancy as metaphors for divine guidance and the cyclical nature of spiritual rebirth. Eos is particularly venerated in the city of Luminaria, where rituals of dawn observance and reflective meditation are central to local religious life.
The mythology of Eos emphasizes themes of progress, hope, and the pursuit of knowledge, positioning the planet as both a literal celestial body and a metaphysical beacon within the broader theology of the Host Spirit.
