🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.12

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.44 AU - 0.68 AU

Year: 157 Days

Day: 16.7 Hours

Environment

Temp: 132 °C

Axial Tilt: 9.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.8

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.65 AU - 0.83 AU

Year: 239 Days

Day: 39.7 Hours

Environment

Temp: 86 °C

Axial Tilt: 31.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 68,356,016 km

• M1: 43,832 km (0.071 R)
• M2: 65,225 km (0.058 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.13

Radius: 0.44

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.76 AU - 1.18 AU

Year: 358 Days

Day: 30.8 Hours

Environment

Temp: 10 °C

Axial Tilt: 43.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 68,356,016 km

• M1: 10,322 km (0.102 R)
• M2: 94,845 km (0.057 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.44

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.18 AU - 1.56 AU

Year: 601 Days

Day: 13 Hours

Environment

Temp: -27 °C

Axial Tilt: 38.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 2.33 AU - 3.27 AU

Year: 1756 Days

Day: 37.6 Hours

Environment

Temp: -95 °C

Axial Tilt: 19.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,356,016 km

• M1: 973,882 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.6

Radius: 13.5

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 4.56 AU - 6.38 AU

Year: 4794 Days

Day: 6.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 68,356,016 km

• M1: 167,849 km (0.026 R)
• M2: 782,546 km (0.096 R)
• M3: 1,235,080 km (0.066 R)
• M4: 1,757,775 km (0.111 R)
• M5: 3,115,824 km (0.092 R)
• M6: 4,105,414 km (0.099 R)
• M7: 4,994,624 km (0.063 R)
• M8: 5,607,227 km (0.098 R)
• M9: 6,402,639 km (0.112 R)
• M10: 7,126,693 km (0.1 R)
• M11: 7,750,815 km (0.12 R)
• M12: 8,443,603 km (0.075 R)
• M13: 10,657,951 km (0.118 R)
• M14: 11,395,917 km (0.112 R)
• M15: 12,084,815 km (0.054 R)
• M16: 13,770,484 km (0.097 R)
• M17: 14,319,508 km (0.111 R)
• M18: 14,835,471 km (0.064 R)
• M19: 15,266,762 km (0.1 R)
• M20: 17,979,570 km (0.067 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.7

Radius: 9.3

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 5.86 AU - 6.22 AU

Year: 5563 Days

Day: 7 Hours

Environment

Temp: -163 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 68,356,016 km

• M1: 119,977 km (0.076 R)
• M2: 516,113 km (0.11 R)
• M3: 1,337,106 km (0.06 R)
• M4: 3,721,995 km (0.059 R)
• M5: 5,599,299 km (0.039 R)
• M6: 6,655,609 km (0.116 R)
• M7: 8,379,725 km (0.076 R)
• M8: 9,725,657 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 291.9

Radius: 3.2

Gravity: 28.51 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 14.03 AU - 15.17 AU

Year: 20905 Days

Day: 24.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 68,356,016 km

• M1: 39,793 km (0.118 R)
• M2: 181,612 km (0.076 R)
• M3: 463,454 km (0.115 R)
• M4: 747,541 km (0.046 R)
• M5: 938,727 km (0.086 R)
• M6: 1,099,694 km (0.066 R)
• M7: 1,695,542 km (0.076 R)
• M8: 2,062,805 km (0.087 R)
• M9: 2,698,746 km (0.068 R)
• M10: 2,905,490 km (0.097 R)
• M11: 3,197,654 km (0.096 R)
• M12: 3,783,330 km (0.086 R)
• M13: 5,303,394 km (0.12 R)
• M14: 8,470,531 km (0.062 R)
• M15: 9,685,265 km (0.081 R)
• M16: 10,006,153 km (0.053 R)
• M17: 13,155,038 km (0.115 R)
• M18: 15,200,939 km (0.109 R)
• M19: 15,927,386 km (0.101 R)
• M20: 16,905,906 km (0.081 R)
• M21: 17,449,096 km (0.086 R)
• M22: 20,167,439 km (0.08 R)
• M23: 23,249,603 km (0.099 R)
• M24: 24,408,239 km (0.109 R)
• M25: 25,101,625 km (0.083 R)
• M26: 26,320,698 km (0.091 R)
• M27: 29,763,244 km (0.112 R)
• M28: 32,414,867 km (0.069 R)
• M29: 39,791,837 km (0.075 R)
• M30: 44,012,292 km (0.105 R)
• M31: 44,303,858 km (0.1 R)
• M32: 46,380,725 km (0.114 R)
• M33: 48,211,803 km (0.052 R)
• M34: 48,832,635 km (0.097 R)
• M35: 51,854,960 km (0.026 R)
• M36: 52,999,085 km (0.073 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 349.3

Radius: 4.3

Gravity: 18.89 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 12.61 AU - 19.27 AU

Year: 23848 Days

Day: 21.8 Hours

Environment

Temp: -195 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 68,356,016 km

• M1: 53,706 km (0.077 R)
• M2: 236,963 km (0.103 R)
• M3: 425,905 km (0.11 R)
• M4: 2,068,639 km (0.059 R)
• M5: 2,208,663 km (0.119 R)
• M6: 3,860,822 km (0.096 R)
• M7: 4,012,364 km (0.073 R)
• M8: 4,359,581 km (0.101 R)
• M9: 6,072,327 km (0.06 R)
• M10: 6,402,789 km (0.042 R)
• M11: 8,287,572 km (0.11 R)
• M12: 13,380,183 km (0.092 R)
• M13: 15,941,149 km (0.027 R)
• M14: 18,126,924 km (0.091 R)
• M15: 21,059,640 km (0.11 R)
• M16: 24,396,570 km (0.095 R)
• M17: 24,915,226 km (0.114 R)
• M18: 28,409,982 km (0.05 R)
• M19: 28,753,459 km (0.06 R)
• M20: 30,393,051 km (0.092 R)
• M21: 36,352,283 km (0.082 R)
• M22: 40,248,260 km (0.114 R)
• M23: 40,536,685 km (0.093 R)
• M24: 46,917,782 km (0.097 R)
• M25: 49,185,087 km (0.114 R)
• M26: 49,846,011 km (0.12 R)
• M27: 54,993,075 km (0.12 R)
• M28: 61,623,402 km (0.076 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 180 - 13,879 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit