🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.5

Radius: 13.8

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.48 AU - 0.72 AU

Year: 315 Days

Day: 14.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 66,002,857 km

• M1: 171,589 km (0.075 R)
• M2: 666,907 km (0.108 R)
• M3: 1,175,241 km (0.095 R)
• M4: 2,528,204 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 655.4

Radius: 13.8

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.78 AU - 1.14 AU

Year: 638 Days

Day: 10.5 Hours

Environment

Temp: -171 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,002,857 km

• M1: 171,589 km (0.098 R)
• M2: 679,474 km (0.088 R)
• M3: 1,529,189 km (0.094 R)
• M4: 1,996,832 km (0.072 R)
• M5: 2,764,868 km (0.036 R)
• M6: 3,268,265 km (0.059 R)
• M7: 3,930,684 km (0.08 R)
• M8: 5,074,809 km (0.112 R)
• M9: 5,966,561 km (0.116 R)
• M10: 6,570,189 km (0.107 R)
• M11: 7,193,114 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652.5

Radius: 8.5

Gravity: 9.03 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1 AU - 1.14 AU

Year: 751 Days

Day: 11.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,002,857 km

• M1: 105,766 km (0.042 R)
• M2: 473,328 km (0.113 R)
• M3: 993,779 km (0.106 R)
• M4: 1,568,833 km (0.114 R)
• M5: 1,877,902 km (0.105 R)
• M6: 3,329,600 km (0.091 R)
• M7: 3,786,771 km (0.106 R)
• M8: 4,129,799 km (0.116 R)
• M9: 4,776,062 km (0.113 R)
• M10: 5,506,548 km (0.081 R)
• M11: 5,869,472 km (0.115 R)
• M12: 6,248,254 km (0.098 R)
• M13: 7,763,082 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.2

Radius: 14.5

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.91 AU - 1.37 AU

Year: 826 Days

Day: 14.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 92.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,002,857 km

• M1: 180,265 km (0.076 R)
• M2: 695,929 km (0.107 R)
• M3: 1,179,430 km (0.068 R)
• M4: 2,037,224 km (0.103 R)
• M5: 2,544,959 km (0.099 R)
• M6: 3,762,536 km (0.099 R)
• M7: 4,882,276 km (0.052 R)
• M8: 6,576,921 km (0.058 R)
• M9: 8,198,562 km (0.089 R)
• M10: 8,821,188 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 691.4

Radius: 14

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 2.3 AU - 3.28 AU

Year: 3161 Days

Day: 12.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 66,002,857 km

• M1: 176,825 km (0.107 R)
• M2: 629,508 km (0.085 R)
• M3: 1,277,267 km (0.061 R)
• M4: 2,072,678 km (0.083 R)
• M5: 3,145,146 km (0.088 R)
• M6: 3,698,658 km (0.072 R)
• M7: 5,501,013 km (0.034 R)
• M8: 6,004,260 km (0.103 R)
• M9: 7,289,156 km (0.105 R)
• M10: 9,253,825 km (0.055 R)
• M11: 10,398,698 km (0.106 R)
• M12: 11,507,966 km (0.099 R)
• M13: 12,604,069 km (0.117 R)
• M14: 13,061,540 km (0.106 R)
• M15: 13,816,710 km (0.102 R)
• M16: 14,501,120 km (0.075 R)
• M17: 15,570,146 km (0.102 R)
• M18: 17,021,096 km (0.1 R)
• M19: 17,467,795 km (0.116 R)
• M20: 18,094,910 km (0.082 R)
• M21: 18,619,101 km (0.056 R)
• M22: 19,454,605 km (0.102 R)
• M23: 19,943,191 km (0.091 R)
• M24: 20,691,480 km (0.06 R)
• M25: 21,653,095 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.9

Radius: 13.9

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 3.54 AU - 3.7 AU

Year: 4671 Days

Day: 8.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,002,857 km

• M1: 173,085 km (0.111 R)
• M2: 642,373 km (0.09 R)
• M3: 1,101,340 km (0.039 R)
• M4: 1,790,537 km (0.039 R)
• M5: 4,393,989 km (0.096 R)
• M6: 6,524,711 km (0.112 R)
• M7: 8,327,216 km (0.06 R)
• M8: 8,859,635 km (0.12 R)
• M9: 9,809,581 km (0.067 R)
• M10: 10,479,929 km (0.068 R)
• M11: 12,762,942 km (0.096 R)
• M12: 15,808,456 km (0.068 R)
• M13: 17,312,214 km (0.091 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 314.7

Radius: 6.7

Gravity: 7.01 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 9.81 AU - 11.65 AU

Year: 23839 Days

Day: 22.7 Hours

Environment

Temp: -243 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,002,857 km

• M1: 83,326 km (0.117 R)
• M2: 474,225 km (0.101 R)
• M3: 756,965 km (0.066 R)
• M4: 971,937 km (0.118 R)
• M5: 2,047,097 km (0.074 R)
• M6: 2,430,816 km (0.093 R)
• M7: 2,861,508 km (0.101 R)
• M8: 5,324,338 km (0.07 R)
• M9: 6,251,845 km (0.108 R)
• M10: 7,373,529 km (0.052 R)
• M11: 9,731,491 km (0.08 R)
• M12: 15,119,558 km (0.056 R)
• M13: 19,909,532 km (0.054 R)
• M14: 26,151,054 km (0.084 R)
• M15: 28,679,109 km (0.076 R)
• M16: 40,423,439 km (0.112 R)
• M17: 49,922,305 km (0.105 R)
• M18: 56,244,910 km (0.041 R)
• M19: 65,214,948 km (0.077 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 253 - 15,998 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit