🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 754.2

Radius: 11.8

Gravity: 5.42 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.54 AU - 0.68 AU

Year: 323 Days

Day: 10.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 41,011,690 km

• M1: 151,243 km (0.049 R)
• M2: 596,896 km (0.05 R)
• M3: 1,183,918 km (0.099 R)
• M4: 1,706,762 km (0.12 R)
• M5: 2,633,222 km (0.101 R)
• M6: 3,161,601 km (0.118 R)
• M7: 3,795,896 km (0.072 R)
• M8: 4,260,547 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163.7

Radius: 9

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.51 AU - 0.75 AU

Year: 339 Days

Day: 8.1 Hours

Environment

Temp: -156 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 41,011,690 km

• M1: 112,049 km (0.09 R)
• M2: 645,216 km (0.065 R)
• M3: 944,711 km (0.11 R)
• M4: 1,478,326 km (0.111 R)
• M5: 2,111,125 km (0.026 R)
• M6: 2,896,813 km (0.036 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 57

Radius: 12.9

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.16 AU - 1.62 AU

Year: 1112 Days

Day: 7.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 41,011,690 km

• M1: 162,014 km (0.101 R)
• M2: 687,402 km (0.114 R)
• M3: 1,180,776 km (0.055 R)
• M4: 1,834,519 km (0.116 R)
• M5: 3,446,585 km (0.119 R)
• M6: 3,850,200 km (0.072 R)
• M7: 4,795,659 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.5

Radius: 11.6

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.28 AU - 2.12 AU

Year: 1503 Days

Day: 7.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 97.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 41,011,690 km

• M1: 144,212 km (0.103 R)
• M2: 522,695 km (0.08 R)
• M3: 2,036,476 km (0.106 R)
• M4: 4,443,655 km (0.026 R)
• M5: 5,156,339 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 86

Radius: 12.7

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.86 AU - 1.86 AU

Year: 1721 Days

Day: 6 Hours

Environment

Temp: -199 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 41,011,690 km

• M1: 158,424 km (0.113 R)
• M2: 824,583 km (0.115 R)
• M3: 1,546,692 km (0.109 R)
• M4: 2,045,003 km (0.045 R)
• M5: 2,545,109 km (0.087 R)
• M6: 3,514,353 km (0.071 R)
• M7: 5,093,209 km (0.058 R)
• M8: 6,647,531 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 431.5

Radius: 12.3

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 2.09 AU - 2.91 AU

Year: 2681 Days

Day: 10.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 41,011,690 km

• M1: 153,039 km (0.093 R)
• M2: 565,929 km (0.119 R)
• M3: 1,244,654 km (0.05 R)
• M4: 1,822,551 km (0.089 R)
• M5: 2,218,985 km (0.106 R)
• M6: 3,000,784 km (0.065 R)
• M7: 3,648,094 km (0.096 R)
• M8: 4,386,658 km (0.064 R)
• M9: 5,429,954 km (0.047 R)
• M10: 6,367,783 km (0.052 R)
• M11: 6,766,611 km (0.112 R)
• M12: 8,854,399 km (0.068 R)
• M13: 9,869,121 km (0.114 R)
• M14: 10,296,223 km (0.12 R)
• M15: 11,263,972 km (0.053 R)
• M16: 11,730,567 km (0.117 R)
• M17: 13,948,356 km (0.108 R)
• M18: 15,273,643 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 443.4

Radius: 14.3

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.18 AU - 3.14 AU

Year: 2942 Days

Day: 12.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 41,011,690 km

• M1: 178,171 km (0.042 R)
• M2: 663,467 km (0.035 R)
• M3: 1,143,526 km (0.052 R)
• M4: 2,224,670 km (0.105 R)
• M5: 2,673,613 km (0.037 R)
• M6: 3,167,286 km (0.052 R)
• M7: 4,160,766 km (0.071 R)
• M8: 4,655,486 km (0.088 R)
• M9: 5,120,586 km (0.079 R)
• M10: 5,665,870 km (0.084 R)
• M11: 6,328,888 km (0.059 R)
• M12: 7,043,217 km (0.108 R)
• M13: 7,841,322 km (0.107 R)
• M14: 8,503,293 km (0.073 R)
• M15: 8,998,761 km (0.093 R)
• M16: 9,583,539 km (0.106 R)
• M17: 10,452,403 km (0.104 R)
• M18: 11,452,315 km (0.05 R)
• M19: 12,098,578 km (0.076 R)
• M20: 13,332,312 km (0.072 R)
• M21: 18,072,171 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 139.7

Radius: 3.8

Gravity: 9.67 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 6.98 AU - 10.5 AU

Year: 17525 Days

Day: 15.1 Hours

Environment

Temp: -239 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 41,011,690 km

• M1: 72,405 km (0.098 R)
• M2: 310,864 km (0.045 R)
• M3: 432,039 km (0.113 R)
• M4: 818,300 km (0.078 R)
• M5: 1,142,329 km (0.091 R)
• M6: 1,864,588 km (0.099 R)
• M7: 3,147,689 km (0.072 R)
• M8: 3,372,834 km (0.075 R)
• M9: 3,560,579 km (0.089 R)
• M10: 3,957,013 km (0.064 R)
• M11: 5,015,717 km (0.119 R)
• M12: 6,642,145 km (0.088 R)
• M13: 6,788,602 km (0.048 R)
• M14: 7,713,715 km (0.07 R)
• M15: 7,916,570 km (0.102 R)
• M16: 11,245,272 km (0.108 R)
• M17: 14,708,911 km (0.082 R)
• M18: 20,321,076 km (0.075 R)
• M19: 20,786,026 km (0.11 R)
• M20: 21,817,503 km (0.074 R)
• M21: 23,217,141 km (0.063 R)
• M22: 24,939,162 km (0.091 R)
• M23: 38,602,683 km (0.12 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 444 - 17,814 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit