> For the complete documentation index, see [llms.txt](https://nbmofficialwiki.gitbook.io/nbm-shadow-depths/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://nbmofficialwiki.gitbook.io/nbm-shadow-depths/overview/nft-battle-miners-official-wiki/ii-arcadia/helios.md).

# HELIOS

In the Arcadian system, Helios is the closest planet to Astra Nova. Its proximity to the star, coupled with an atmosphere rich in carbon dioxide, renders its surface extremely hot and heavily irradiated. However, the low gravity on Helios, combined with its thick crust rich in Fusium, makes underground operations safe and highly appealing. It is not out of the question that underground organisms could exist beneath Helios' surface. Helios has 2 moons: Ignis and Ceres.

<figure><img src="/files/sjCt3UalDkHv3Lu1FIrN" alt=""><figcaption><p>Overview of Helios' surface.</p></figcaption></figure>

| Attribute                   | Value    |
| --------------------------- | -------- |
| Element                     | Planet   |
| Distance from the star (AU) | 0.19     |
| Type                        | Telluric |
| Diameter (km)               | 4876.8   |
| Gravity (m/s2)              | 3.91     |
| Orbital period              | 74 days  |
| Temperature (C)             | 750      |
| Temperature (F)             | 1382     |
| Temperature (K)             | 1023.15  |
| Astralova Irradiance (W/m2) | 12450.6  |
| Water coverage (%)          | 0        |
| Water state                 | None     |