🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 204.3

Radius: 10.7

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.56 AU - 0.76 AU

Year: 358 Days

Day: 7.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 9,601,134 km

• M1: 133,142 km (0.092 R)
• M2: 571,314 km (0.093 R)
• M3: 1,072,467 km (0.085 R)
• M4: 1,476,681 km (0.06 R)
• M5: 1,942,678 km (0.112 R)
• M6: 2,288,997 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 366.1

Radius: 10.8

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.56 AU - 0.88 AU

Year: 407 Days

Day: 6.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 9,601,134 km

• M1: 134,339 km (0.109 R)
• M2: 520,451 km (0.1 R)
• M3: 902,823 km (0.062 R)
• M4: 1,367,923 km (0.08 R)
• M5: 2,104,842 km (0.11 R)
• M6: 2,475,546 km (0.053 R)
• M7: 3,297,137 km (0.103 R)
• M8: 3,661,707 km (0.105 R)
• M9: 4,499,156 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.5

Radius: 12.4

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.76 AU - 0.78 AU

Year: 451 Days

Day: 7.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 9,601,134 km

• M1: 154,235 km (0.037 R)
• M2: 861,235 km (0.08 R)
• M3: 1,322,296 km (0.116 R)
• M4: 2,208,513 km (0.085 R)
• M5: 3,379,266 km (0.118 R)
• M6: 4,052,307 km (0.083 R)
• M7: 4,604,024 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 786.3

Radius: 14.1

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.71 AU - 1.19 AU

Year: 617 Days

Day: 11.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 9,601,134 km

• M1: 175,329 km (0.105 R)
• M2: 739,163 km (0.089 R)
• M3: 1,329,476 km (0.108 R)
• M4: 2,091,977 km (0.034 R)
• M5: 2,682,439 km (0.055 R)
• M6: 3,281,429 km (0.038 R)
• M7: 3,840,925 km (0.051 R)
• M8: 4,294,356 km (0.045 R)
• M9: 4,882,725 km (0.067 R)
• M10: 5,328,078 km (0.037 R)
• M11: 6,420,741 km (0.115 R)
• M12: 6,956,899 km (0.1 R)
• M13: 7,456,107 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.1

Radius: 8.4

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.79 AU - 1.29 AU

Year: 707 Days

Day: 11.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 9,601,134 km

• M1: 104,419 km (0.115 R)
• M2: 417,976 km (0.056 R)
• M3: 734,825 km (0.069 R)
• M4: 1,079,199 km (0.104 R)
• M5: 1,375,702 km (0.065 R)
• M6: 1,659,639 km (0.034 R)
• M7: 2,463,279 km (0.095 R)
• M8: 2,810,944 km (0.12 R)
• M9: 3,226,377 km (0.081 R)
• M10: 5,877,102 km (0.071 R)
• M11: 6,147,126 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619.3

Radius: 13.9

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1 AU - 1.34 AU

Year: 844 Days

Day: 14 Hours

Environment

Temp: -183 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 9,601,134 km

• M1: 172,935 km (0.117 R)
• M2: 619,335 km (0.101 R)
• M3: 1,152,053 km (0.119 R)
• M4: 2,014,934 km (0.091 R)
• M5: 2,530,298 km (0.117 R)
• M6: 3,436,712 km (0.101 R)
• M7: 3,921,409 km (0.095 R)
• M8: 4,500,652 km (0.084 R)
• M9: 6,193,202 km (0.049 R)
• M10: 6,827,946 km (0.102 R)
• M11: 7,412,874 km (0.081 R)
• M12: 8,327,814 km (0.078 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 496.6

Radius: 11.9

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.26 AU - 1.62 AU

Year: 1152 Days

Day: 6.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 9,601,134 km

• M1: 147,952 km (0.099 R)
• M2: 753,225 km (0.091 R)
• M3: 1,177,934 km (0.104 R)
• M4: 1,669,512 km (0.117 R)
• M5: 2,139,100 km (0.071 R)
• M6: 2,684,683 km (0.112 R)
• M7: 3,961,501 km (0.036 R)
• M8: 4,699,916 km (0.094 R)
• M9: 6,810,742 km (0.103 R)
• M10: 7,351,987 km (0.089 R)
• M11: 8,654,985 km (0.098 R)
• M12: 9,066,080 km (0.055 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 135.6

Radius: 13.7

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.63 AU - 2.55 AU

Year: 2015 Days

Day: 8.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 9,601,134 km

• M1: 198,516 km (0.056 R)
• M2: 651,948 km (0.11 R)
• M3: 1,106,426 km (0.068 R)
• M4: 1,705,416 km (0.088 R)
• M5: 2,385,488 km (0.105 R)
• M6: 3,109,691 km (0.107 R)
• M7: 3,749,371 km (0.109 R)
• M8: 4,342,976 km (0.089 R)
• M9: 5,071,667 km (0.055 R)
• M10: 5,543,349 km (0.084 R)
• M11: 8,103,866 km (0.115 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: 305 - 15,135 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit