✦ Galactic Catalogue ✦

Argo

Volcanic world · Uncommon

Born in the First Light

bookyourplanet.com/p/Argo

The record

Catalog ID
AS-148RZH4
Type
Volcanic world
Atmosphere
Dense, cloud-covered
Diameter
2,826 km
Moons
2
Rarity
41 / 99 · Uncommon
Claimed
28 September 2026
Ring system
None
Region
Aquila Stretch

Argo presents as smouldering grey, with vast lava plains broken by active shield volcanoes, with two moons in stable co-orbital configurations. Surface temperatures range from 400 to 1,100°C at 6 atm, with explosive caldera events reshaping entire regions. At 2,826 km across, the surface material is primarily fresh basalt overlaying a partially molten upper mantle. A world still releasing its formation heat at this rate is young by planetary standards, or unusually rich in radioactive interior elements — possibly both.

The certificate

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Catalog ID —

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The signal

Sent 28 September 2026

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