🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.56 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.95

Radius: 0.98

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.86 AU - 1.36 AU

Year: 436 Days

Day: 46.4 Hours

Environment

Temp: 11 °C

Axial Tilt: 33.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.18 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.66

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.96 AU - 1.4 AU

Year: 478 Days

Day: 46.7 Hours

Environment

Temp: -7 °C

Axial Tilt: 14.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 65,675,234 km

• M1: 517,908 km (0.118 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.99

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.53 AU - 1.97 AU

Year: 863 Days

Day: 31.8 Hours

Environment

Temp: -66 °C

Axial Tilt: 22.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.15 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.3

Radius: 13.2

Gravity: 5.05 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 4.32 AU - 4.78 AU

Year: 3618 Days

Day: 15 Hours

Environment

Temp: -142 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 65,675,234 km

• M1: 164,857 km (0.044 R)
• M2: 741,407 km (0.088 R)
• M3: 1,225,356 km (0.09 R)
• M4: 1,760,318 km (0.106 R)
• M5: 2,269,549 km (0.116 R)
• M6: 2,774,143 km (0.063 R)
• M7: 4,659,525 km (0.069 R)
• M8: 6,221,327 km (0.067 R)
• M9: 6,993,102 km (0.068 R)
• M10: 7,553,645 km (0.068 R)
• M11: 8,037,744 km (0.075 R)
• M12: 8,616,239 km (0.054 R)
• M13: 9,417,635 km (0.062 R)
• M14: 12,216,013 km (0.093 R)
• M15: 12,691,135 km (0.08 R)
• M16: 13,227,893 km (0.115 R)
• M17: 15,091,583 km (0.044 R)
• M18: 15,805,763 km (0.1 R)
• M19: 16,427,492 km (0.113 R)
• M20: 18,268,144 km (0.064 R)
• M21: 18,827,341 km (0.111 R)
• M22: 19,849,842 km (0.109 R)
• M23: 21,043,932 km (0.118 R)
• M24: 22,355,756 km (0.094 R)
• M25: 22,995,736 km (0.106 R)

Planet 5 - Ice Giant

Semi-Major Axis: 18.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 200.9

Radius: 6.7

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 14.03 AU - 22.93 AU

Year: 29615 Days

Day: 21.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 86.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 65,675,234 km

• M1: 83,924 km (0.064 R)
• M2: 491,878 km (0.114 R)
• M3: 708,346 km (0.11 R)
• M4: 1,209,798 km (0.04 R)
• M5: 2,293,635 km (0.103 R)
• M6: 3,299,082 km (0.102 R)
• M7: 4,737,615 km (0.083 R)
• M8: 5,824,443 km (0.064 R)
• M9: 8,135,581 km (0.091 R)
• M10: 9,359,441 km (0.108 R)
• M11: 9,959,478 km (0.059 R)
• M12: 10,996,191 km (0.089 R)
• M13: 11,540,728 km (0.104 R)
• M14: 11,850,844 km (0.119 R)
• M15: 17,683,964 km (0.093 R)
• M16: 20,345,759 km (0.103 R)
• M17: 22,774,780 km (0.092 R)
• M18: 23,460,387 km (0.047 R)
• M19: 24,667,492 km (0.054 R)
• M20: 30,145,018 km (0.052 R)
• M21: 32,055,682 km (0.058 R)
• M22: 33,540,591 km (0.075 R)
• M23: 43,574,419 km (0.038 R)
• M24: 50,495,714 km (0.094 R)
• M25: 54,736,963 km (0.088 R)
• M26: 55,436,932 km (0.096 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 204 - 13,761 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit