Eos
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
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| 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 | Eos Topógrafo | Eos flyby. Take first pictures of Eos. | |
| EosTopo-2 | 23.V.1710 AN | Eos Topógrafo | Eos orbiter. | |
| EosTopo-3 | 18.XIII.1712 AN | Eos Topógrafo | Eos orbiter and impacter. First impact landing on Eos. | |
| EosTopo-4 | 20.IV.1714 AN | Eos Topógrafo | Eos orbiter and lander. First controlled landing on Eos. |
Mythology

Eos, revered as the Lady Divine of Dawn in the mystical Reformed Stripping Path, a religion based in Bassaridia Vaeringheim, holds a prominent place within the pantheon of Planetary Divines. Born from the first rays of light that pierced through the primordial darkness, she emerged as the embodiment of the dawn's beauty and significance. Eos is believed to be the daughter of the primordial deities of light and creation, instilling her essence with the power to awaken the world each morning and guide the sun on its journey across the heavens.
Eos is also purported to be the subject of worship by a deviant cult or new religious movement in Tiegang, although little is known of the beliefs and practices of this secretive group.
Epithets
Eos is celebrated under a range of epithets that reflect her divine nature and the profound impact she has on the cosmos. Among these titles are "Rose-Fingered," evoking the delicate touch of dawn as it paints the sky with hues of pink and gold; "Goddess of the Dawn," emphasizing her role as the celestial herald of a new day; "Bringer of Light," symbolizing the illumination and enlightenment she bestows upon the world; and "Bearer of New Beginnings," signifying her association with fresh starts and the endless cycle of renewal.
Worship and Festivals in Bassaridia Vaeringheim

In the realm of Bassaridia Vaeringheim, Eos commands unwavering devotion from her followers, who honor her presence through elaborate rituals and joyous festivals. The most revered of these celebrations is the Dawnrise Festival. This ceremonial practice takes place during the earliest hours of the morning, just before the break of dawn when the first light of Eos begins to illuminate the sky. Participants of the Order gather in a secluded outdoor location, often atop a high hill or mountain, where they can witness the majestic spectacle of the sunrise. Clad in pink or red robes symbolizing purity and enlightenment, they form a circle around a central altar adorned with symbols representing Eos and the dawn. As the sky begins to transition from darkness to light, participants engage in silent meditation and contemplation, focusing their thoughts and intentions on the divine presence of Eos. They reflect on the symbolism of the dawn – a time of new beginnings, renewal, and enlightenment – and the role that Eos plays as the Lady Divine of Dawn. As the first rays of sunlight begin to crest over the horizon, participants offer prayers and invocations to Eos, expressing gratitude for the gift of each new day and the opportunity for spiritual growth and transformation. They meditate on the symbolism of light overcoming darkness, representing the triumph of knowledge and enlightenment over ignorance and shadow.
Order of Aurora Mystica
At the heart of Eos's worship lies the Order of Aurora Mystica, a cult based in the city of Luminaria, which is devoted to the study and reverence of the Lady Divine of Dawn. Comprised of devout mystics and scholars, the Order is dedicated to upholding the ancient teachings of Eos. Operating in relative openness, the Order conducts sacred rites and rituals in public sanctuaries, where devotees commune with the goddess and seek her guidance in matters both mundane and profound. Members of the Order, known as Aurora Mystics, are distinguished by their flowing red or pink robes adorned with intricate symbols representing the dawn and its significance. They lead lives of disciplined devotion, forsaking worldly pursuits in favor of spiritual enlightenment and the pursuit of divine truth.
Mythology
Legend holds that Eos emerges from the realm of the celestial heavens each morning, dressed in robes of shimmering light that mirror the colors of dawn itself. With gentle grace, she traverses the celestial expanse, parting the veil of night and ushering forth the first rays of sunlight. Eos is revered as the celestial guide who leads the sun on its daily journey across the sky, ensuring the balance and harmony of the cosmos. Her presence symbolizes the eternal cycle of life, death, and rebirth, offering hope and renewal to all who behold her radiant visage.
Iconography and Depictions
In art and iconography, Eos is portrayed as a luminous goddess adorned in robes of celestial light, her radiant presence filling the heavens with a sense of awe and wonder. She is often depicted riding a chariot drawn by celestial steeds, their fiery mane trailing behind them as they carry the goddess across the sky. Symbols of dawn, such as blooming flowers, and the golden orb of the sun, are frequently incorporated into depictions of Eos, serving as visual reminders of her divine nature and the power she wields over the forces of light and darkness. Additionally, the rooster, herald of the dawn, and the lark, whose melodious song heralds the break of day, are revered as sacred creatures associated with Eos and her realm.