Grund-A
Grund-A
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| Grund-A gas planet texture |
Grund-A is the 6th fictional planet and the gravitational sovereign of the Los Star System. Its massive golden-orange bands and 85,069 km radius make it the primary anchor for the outer planetary systems.
Scientific Profile:
Mass: 420.15 Earths (Super-Gas Giant scale)
Radius: 85,069 km (The largest planet in the Los System)
Orbital Distance: 6.74 A.U.
Upper Atmospheric Temp: -193.9°F
Surface Temp: No solid surface but about 200°F as deeper in has layers temperature rises.
Core Temp: 69,530°F
The Binary Anchor: Los Carlords & Grund-A
Unlike our Solar System, the Los Star System functions as a gravitational binary-analog. Because Los Carlords possesses a mass of 1.30 Suns, its interaction with the super-giant Grund-A creates a "Gravitational Lock."
Asteroid Belt Shielding: The combined mass of the Star and the 6th planet creates a much stronger resonance than Jupiter. This prevents asteroids from drifting into the inner los system, protecting the rocky "Twin Hearts" (Southway, Northway).
Orbital Stability: This binary-pull ensures that even at 6.74 A.U., Grund-A maintains a perfect, stable orbit that prevents the outer "Ice Giants" from drifting inward.
Moons of "Grund-A"
Satellite Profile: Annexa (Grund-A I) The"Ring-Gap Shepherd"
Mass: 1.1e20 kg
Radius: 296.38 km (Irregular/Oblong shape)
Orbital Velocity: 31.76 km/s (High-velocity inner orbit)
Orbital Period: 9.6 Hours.
Distance to Grund-A: 84,000 km.
⚠️ Technical Disclaimer: Current simulations render Annexa as spherical, but its low mass and proximity to the Roche Limit suggest an Irregular/Potato-shaped geometry.
Surface Observation: Annexa orbits directly within the "Abyssal Gap" of Grund-A's ring system. Its gravitational presence clears the debris, maintaining the sharp definition of the inner and outer ring boundaries.
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| Harria |
Satellite Profile: Harria (Grund-A II)
The "Rugged Sentinel"
Mass: 1.9e20 kg
Radius: 424.39 km
Orbital Velocity: 26.51 km/s
Orbital Period: 16.5 Hours
Distance to Grund-A: 160,588 km
Surface Analysis: Unlike the smoother icy moons, Harria features a highly irregular and bumpy topography. Due to its relatively small size and proximity to the gas giant, it has a high density of impact craters and jagged geological formations.
Orbital Dynamics: Harria is Tidally Locked to Grund-A, meaning the same "bumpy" face always looks down toward the planet’s swirling clouds.
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| Tirga |
Satellite Profile: Tirga (Grund-A III) The "Orbital Bridge"
Mass: 1.7e20 kg
Radius: 400.92 km
Orbital Velocity: 21.51 km/s
Orbital Period: 30.8 Hours
Distance to Grund-A: 284,346 km
Surface Analysis: Tirga presents a high-albedo, rocky crust. Unlike the "bumpy" topography of its neighbor Harria, Tirga has a more consolidated spherical geometry due to its slightly higher mass-to-radius ratio.
Orbital Dynamics: As the Third Closest Inner Moon, Tirga orbits directly between Harria and the Veris/Amenda binary pair. It acts as a gravitational buffer, marking the final boundary before the exotic icy environments of the mid-orbital chain.
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| Veris texture |
Satellite Survey: Volcanic Moon "Veris"
(Grund-A IIII)
Veris is the inner-most major satellite of the Grundian system. Despite its distance from Los Carlords, it is a high-temperature Volcanic World powered by the crushing tidal forces of the gas giant, Grund-A.
Atmospheric Temperature: 280°F (137.7°C)
A thick, super-heated greenhouse atmosphere.
Geology: Active Sulfur Volcanism. The moon is characterized by yellow and orange lava plains and constant seismic activity.
Tidal Bending: The gravitational "Tug" from Grund-A is so strong that the moon's crust physically bends and flexes, generating massive internal friction.
Physical Scale: 2,020 km Radius (Massive terrestrial moon).
Orbital Velocity: 18.37 km/s.
Distance to Grund-A: 420,000 km.
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| Veris (Cloud map texture) |
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| Amenda (satellite map texture) |
Satellite Survey: Primary Moon "Amenda" (Grund-A V)
Amenda is the second major satellite from Veris of the Grundian system. Characterized by its high-albedo "Mirror Crust," it is a world of extreme temperature contrasts and sub-surface liquid oceans.
Physical Scale: 1,830 km Radius (Larger than most inner-system moons).
Mass: 0.014 Earths.
Orbital Period: 4.2 Days (approx. 4 days).
Distance to Grund-A: 700,250 km.
Atmospheric Temperature: -210°F (Thin nitrogen-heavy exosphere).
Surface Temperature: -240°F (Deep-freeze ice).
🌊 The Cryo-Ocean Dynamics
Despite the surface temperature of -240°F, Amenda hides a vast liquid water ocean beneath its crust. The tidal friction generated by its 4.2-day orbit around the massive Grund-A creates enough internal heat to prevent the core from freezing solid.
Protector of the inner moons
Amenda is the centerpiece of a tight lunar cluster. Its massive 0.014 gravity helps stabilize the orbits of the smaller satellites, Tigro and Houria, preventing them from being pulled into Grund-A's crushing atmosphere.
The Binary Satellites: Veris & Amenda
The Grundian system is dominated by the Binary Twins, two massive moons that share nearly identical physical profiles but possess opposite elemental compositions.
The Proximity Resonance: Orbiting Grund-A at 420,000km (Veris) and 700,250km (Amenda), these two worlds are locked in a gravitational dance.
The Contrast Profile: Veris (The Fire Twin): 2,020km Radius. Surface temperature of 280°F due to extreme tidal bending from Grund-A.
Amenda (The Ice Twin): 1,830km Radius. Surface temperature of -240°F with a sub-surface liquid ocean.
Gravitational Stabilization: The combined mass of these twins (0.034 Earths total) helps clear the path for the smaller outer moons, Turera and Hogus, acting as a secondary shield for the gas giant.
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| Gammo texture |
Satellite Survey: Gammo (The Mars-Class Giant) (Grund-A VI)
A high-density, cratered super-satellite. With a 3,170 km radius, it dominates the orbital path with its immense gravitational pull.
Surface Composition & Regolith
Gammo’s distinct ochre and charcoal coloration indicates a high concentration of Ferrous Silicates and ancient Impact Glass. Unlike the icy shells of Veris and Amenda, Gammo is a "Dry Giant." Its surface is covered in a thick layer of fine-grain regolith that has remained undisturbed for millions of cycles, making it the most stable landing site in the Grundian system.
The Anchor of the Los Star System
Due to its massive 3,170km radius, Gammo acts as the gravitational "Anchor." It prevents the inner moons from drifting into Grund-A's crushing gravity well. Any ship entering the Grundian system must first calculate its "Gammo-Sling"—using the moon's heavy mass to decelerate before reaching the gas giant's inner rings.
The "Mars-Class" Anchor of the 6th Planet
Mass: 0.030 Earths.
Radius: 3,170 km (Nearly the size of Mars)
Orbital Velocity: 11.65 km/s
Distance to Host Star (Los Carlords): 6.74 A.U.
Orbital Distance from Grund-A: 1,200,000 km
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| Gromqu texture map |
Satellite Profile: Gromqu (Grund-A VII) The "Independent Sentinel
Surface Topology & Cryo-Fractures
Gromqu’s surface is characterized by a massive network of Planetary-Scale Fractures. Unlike the smooth craters of the inner moons, these deep "scars" suggest internal thermal stress or ancient Cryo-volcanic activity.
Visual Signature: High-contrast "Frost-Veins" (Blue-White) indicate subsurface ice deposits that have seeped through the Tectonic Cracks in the silica crust.
Atmospheric Interaction: Despite its distance from Los Carlords, the pale-tan regions suggest a thin layer of Tholin-Rich Dust settling from the outer system.
Mass: 0.024 Earths
Radius: 2,350 km (Second largest moon in the system)
Orbital Velocity: 10.15 km/s
Orbital Period: 12.2 Days
Rotation Period: 9.23 Days
Distance to Grund-A: 1,600,065 km
Tidal Lock: NO (Active Independent Rotation)
Surface Analysis: Gromqu’s pale, sand-colored crust indicates a composition of light silicates and possibly frozen nitrogen. Despite its planetary scale, it remains geologically quiet compared to the inner moons.
Orbital Dynamics: At a distance of over 1.6 million kilometers, Gromqu marks the outer boundary of the Grundian orbital sphere. As a true moon of Grund-A, its unique independent rotation suggests it formed within the primary planetary disk, retaining its own angular momentum despite the immense age of the system.
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| Mizula texture |
Satellite Profile: Mizula (The Geometric Sentinel VIII) The Farthest Moon of Grund-A
Mass: 0.013 Earths
Radius: 1,585 km (Roughly half the size of Earth's Moon)
Orbit Time: 35 Days (36 relative to Grund-A's orbit)
Rotation Period: 23.4 Days (Not Tidally Locked)
Orbital Path: Highly Elliptical
Apoapsis (Furthest): 3,894,470 km
Periapsis (Closest): 3,538,934 km
Surface Observation: Mizula is unique for its highly geometric terrain. The southern hemisphere features distinct square and rectangular patterns in the crust, suggesting a bizarre crystalline geological formation or artificial-looking tectonic fractures.
Orbital Dynamics: As the most distant satellite, Mizula’s orbit is heavily influenced by the gravitational pull of Los Carlords, leading to its 36-day relative orbital cycle and its independence from Grund-A's tidal locking.
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Visit the 5th planet [Northway]
OFFICIAL LORE DISCLAIMER: PROJECT L.S.O.
Non-Affiliation: This project is a work of Speculative Astronomy and Fictional Science. It is NOT affiliated with, endorsed by, or related to:
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