🌌 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: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.5

Radius: 11.4

Gravity: 7.34 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.57 AU - 0.61 AU

Year: 302 Days

Day: 6.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 81,120,860 km

• M1: 141,819 km (0.115 R)
• M2: 500,255 km (0.03 R)
• M3: 856,298 km (0.067 R)
• M4: 1,441,675 km (0.051 R)
• M5: 1,816,118 km (0.069 R)
• M6: 2,530,298 km (0.114 R)
• M7: 3,168,632 km (0.097 R)
• M8: 3,644,055 km (0.096 R)
• M9: 4,570,215 km (0.061 R)
• M10: 5,044,291 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 306.7

Radius: 14

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.62 AU - 0.66 AU

Year: 341 Days

Day: 5.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 81,120,860 km

• M1: 174,132 km (0.101 R)
• M2: 621,130 km (0.107 R)
• M3: 1,104,331 km (0.062 R)
• M4: 1,673,551 km (0.107 R)
• M5: 2,154,359 km (0.076 R)
• M6: 2,737,192 km (0.071 R)
• M7: 3,434,468 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 317.3

Radius: 11.2

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.88 AU - 1.26 AU

Year: 738 Days

Day: 12.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,120,860 km

• M1: 139,276 km (0.09 R)
• M2: 512,373 km (0.104 R)
• M3: 1,016,667 km (0.11 R)
• M4: 1,567,636 km (0.112 R)
• M5: 2,473,750 km (0.101 R)
• M6: 3,288,012 km (0.099 R)
• M7: 3,738,451 km (0.115 R)
• M8: 4,388,454 km (0.115 R)
• M9: 6,131,718 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 353.7

Radius: 10.2

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 2.81 AU - 3.67 AU

Year: 3889 Days

Day: 7.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 81,120,860 km

• M1: 128,056 km (0.06 R)
• M2: 514,467 km (0.041 R)
• M3: 962,961 km (0.097 R)
• M4: 2,464,176 km (0.114 R)
• M5: 2,796,134 km (0.11 R)
• M6: 3,175,514 km (0.087 R)
• M7: 4,058,740 km (0.075 R)
• M8: 4,613,598 km (0.059 R)
• M9: 5,315,811 km (0.111 R)
• M10: 5,718,678 km (0.115 R)
• M11: 6,417,001 km (0.097 R)
• M12: 8,478,759 km (0.106 R)
• M13: 9,135,942 km (0.107 R)
• M14: 10,474,095 km (0.103 R)
• M15: 14,336,562 km (0.064 R)
• M16: 15,725,279 km (0.075 R)
• M17: 16,190,080 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 942.7

Radius: 8.8

Gravity: 12.17 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 2.75 AU - 3.87 AU

Year: 4016 Days

Day: 7.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 81,120,860 km

• M1: 115,938 km (0.074 R)
• M2: 417,228 km (0.055 R)
• M3: 1,945,969 km (0.072 R)
• M4: 2,408,077 km (0.099 R)
• M5: 3,092,038 km (0.053 R)
• M6: 3,387,345 km (0.07 R)
• M7: 4,198,165 km (0.095 R)
• M8: 5,105,626 km (0.117 R)
• M9: 5,379,539 km (0.063 R)
• M10: 6,199,485 km (0.062 R)
• M11: 6,479,981 km (0.06 R)
• M12: 7,617,524 km (0.065 R)
• M13: 9,773,229 km (0.077 R)
• M14: 14,094,962 km (0.078 R)
• M15: 14,636,207 km (0.099 R)
• M16: 16,284,626 km (0.032 R)
• M17: 17,429,498 km (0.101 R)
• M18: 18,243,311 km (0.11 R)
• M19: 19,744,675 km (0.077 R)
• M20: 23,289,546 km (0.117 R)
• M21: 24,276,294 km (0.119 R)
• M22: 25,688,348 km (0.089 R)
• M23: 26,090,018 km (0.075 R)
• M24: 26,659,537 km (0.1 R)
• M25: 27,320,610 km (0.102 R)
• M26: 28,077,127 km (0.05 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.7

Radius: 10.9

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 2.98 AU - 4.08 AU

Year: 4423 Days

Day: 14.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 81,120,860 km

• M1: 136,732 km (0.109 R)
• M2: 866,321 km (0.066 R)
• M3: 1,297,612 km (0.057 R)
• M4: 2,424,084 km (0.083 R)
• M5: 4,090,155 km (0.085 R)
• M6: 4,974,728 km (0.079 R)
• M7: 7,410,031 km (0.048 R)
• M8: 11,012,647 km (0.055 R)
• M9: 11,888,244 km (0.081 R)
• M10: 13,877,297 km (0.088 R)
• M11: 15,320,916 km (0.053 R)
• M12: 20,900,319 km (0.087 R)
• M13: 22,378,046 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772.8

Radius: 12.9

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 4.34 AU - 6.46 AU

Year: 8368 Days

Day: 11.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 174.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 81,120,860 km

• M1: 160,369 km (0.084 R)
• M2: 676,781 km (0.119 R)
• M3: 1,580,202 km (0.099 R)
• M4: 2,186,074 km (0.057 R)
• M5: 2,621,403 km (0.077 R)
• M6: 3,093,385 km (0.032 R)
• M7: 3,946,990 km (0.099 R)
• M8: 4,922,069 km (0.111 R)
• M9: 6,659,200 km (0.09 R)
• M10: 9,366,921 km (0.117 R)
• M11: 11,464,882 km (0.055 R)
• M12: 13,202,760 km (0.087 R)
• M13: 16,230,771 km (0.035 R)
• M14: 17,124,618 km (0.11 R)
• M15: 19,388,632 km (0.088 R)
• M16: 26,798,364 km (0.093 R)
• M17: 28,046,758 km (0.057 R)
• M18: 29,033,356 km (0.103 R)
• M19: 35,558,367 km (0.063 R)
• M20: 36,132,972 km (0.029 R)
• M21: 39,958,489 km (0.1 R)
• M22: 41,460,152 km (0.038 R)
• M23: 44,046,101 km (0.068 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 790.9

Radius: 7

Gravity: 16.14 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 8.64 AU - 10.98 AU

Year: 20490 Days

Day: 17.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 81,120,860 km

• M1: 99,183 km (0.065 R)
• M2: 583,731 km (0.096 R)
• M3: 816,206 km (0.114 R)
• M4: 1,034,918 km (0.091 R)
• M5: 1,595,012 km (0.07 R)
• M6: 2,083,898 km (0.107 R)
• M7: 3,216,205 km (0.077 R)
• M8: 3,681,903 km (0.091 R)
• M9: 5,672,003 km (0.046 R)
• M10: 6,133,662 km (0.052 R)
• M11: 6,395,907 km (0.092 R)
• M12: 8,716,918 km (0.086 R)
• M13: 9,104,826 km (0.084 R)
• M14: 10,523,163 km (0.071 R)
• M15: 11,091,186 km (0.093 R)
• M16: 12,288,268 km (0.107 R)
• M17: 13,495,673 km (0.108 R)
• M18: 14,015,077 km (0.107 R)
• M19: 15,816,085 km (0.087 R)
• M20: 18,480,124 km (0.118 R)
• M21: 18,936,248 km (0.102 R)
• M22: 19,306,353 km (0.116 R)
• M23: 22,858,405 km (0.099 R)
• M24: 26,939,585 km (0.089 R)
• M25: 28,120,510 km (0.109 R)
• M26: 28,602,514 km (0.072 R)
• M27: 33,190,831 km (0.087 R)
• M28: 36,937,659 km (0.112 R)
• M29: 44,277,978 km (0.12 R)
• M30: 61,960,596 km (0.094 R)
• M31: 62,571,853 km (0.099 R)
• M32: 64,221,468 km (0.073 R)
• M33: 70,223,634 km (0.083 R)
• M34: 71,110,600 km (0.118 R)
• M35: 73,815,928 km (0.082 R)
• M36: 75,194,023 km (0.033 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 313 - 13,858 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit