🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502.3

Radius: 14.5

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.67 AU - 0.73 AU

Year: 378 Days

Day: 11.1 Hours

Environment

Temp: -129 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 90,834,569 km

• M1: 180,565 km (0.08 R)
• M2: 995,125 km (0.056 R)
• M3: 1,480,121 km (0.063 R)
• M4: 2,545,408 km (0.078 R)
• M5: 3,173,420 km (0.081 R)
• M6: 3,679,210 km (0.035 R)
• M7: 4,566,924 km (0.05 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 957.3

Radius: 13

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.96 AU - 1.14 AU

Year: 695 Days

Day: 7.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 90,834,569 km

• M1: 172,636 km (0.084 R)
• M2: 604,974 km (0.081 R)
• M3: 1,151,455 km (0.093 R)
• M4: 1,562,251 km (0.051 R)
• M5: 2,007,155 km (0.098 R)
• M6: 2,649,677 km (0.072 R)
• M7: 3,426,539 km (0.095 R)
• M8: 3,974,516 km (0.075 R)
• M9: 4,398,925 km (0.088 R)
• M10: 5,662,728 km (0.106 R)
• M11: 6,453,353 km (0.117 R)
• M12: 7,525,820 km (0.074 R)
• M13: 8,031,162 km (0.09 R)
• M14: 8,765,986 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 546.5

Radius: 9.5

Gravity: 6.06 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.88 AU - 1.24 AU

Year: 705 Days

Day: 10.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 90,834,569 km

• M1: 118,182 km (0.106 R)
• M2: 443,707 km (0.117 R)
• M3: 830,717 km (0.096 R)
• M4: 1,796,222 km (0.115 R)
• M5: 2,254,889 km (0.104 R)
• M6: 2,700,990 km (0.052 R)
• M7: 3,180,600 km (0.114 R)
• M8: 3,539,934 km (0.05 R)
• M9: 3,855,436 km (0.093 R)
• M10: 5,188,802 km (0.046 R)
• M11: 6,279,969 km (0.027 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.5

Radius: 10.6

Gravity: 0.16 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.75 AU - 2.39 AU

Year: 1923 Days

Day: 8.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 90,834,569 km

• M1: 132,095 km (0.112 R)
• M2: 591,360 km (0.12 R)
• M3: 1,123,181 km (0.09 R)
• M4: 1,716,336 km (0.066 R)
• M5: 2,081,804 km (0.043 R)
• M6: 2,481,829 km (0.086 R)
• M7: 3,771,811 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.3

Radius: 14.7

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 4.32 AU - 6.6 AU

Year: 8238 Days

Day: 6.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 90,834,569 km

• M1: 183,706 km (0.096 R)
• M2: 963,410 km (0.117 R)
• M3: 1,637,049 km (0.119 R)
• M4: 2,099,606 km (0.079 R)
• M5: 2,720,138 km (0.03 R)
• M6: 3,181,049 km (0.114 R)
• M7: 4,864,773 km (0.073 R)
• M8: 5,408,711 km (0.067 R)
• M9: 7,152,125 km (0.102 R)
• M10: 8,844,675 km (0.106 R)
• M11: 10,041,159 km (0.096 R)
• M12: 11,064,857 km (0.038 R)
• M13: 14,445,470 km (0.117 R)
• M14: 16,460,852 km (0.086 R)
• M15: 24,246,374 km (0.09 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 383

Radius: 6.6

Gravity: 8.79 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 5.29 AU - 8.73 AU

Year: 11984 Days

Day: 23.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 90,834,569 km

• M1: 82,428 km (0.067 R)
• M2: 300,542 km (0.077 R)
• M3: 810,820 km (0.028 R)
• M4: 1,539,212 km (0.079 R)
• M5: 1,845,439 km (0.119 R)
• M6: 3,568,657 km (0.118 R)
• M7: 4,938,824 km (0.112 R)
• M8: 5,313,866 km (0.088 R)
• M9: 6,263,064 km (0.071 R)
• M10: 7,006,865 km (0.107 R)
• M11: 7,440,400 km (0.053 R)
• M12: 8,317,492 km (0.115 R)
• M13: 9,687,509 km (0.113 R)
• M14: 10,076,913 km (0.105 R)
• M15: 11,739,543 km (0.089 R)
• M16: 12,070,454 km (0.097 R)
• M17: 12,578,488 km (0.079 R)
• M18: 14,564,101 km (0.07 R)
• M19: 15,532,149 km (0.112 R)
• M20: 16,542,383 km (0.09 R)
• M21: 17,381,477 km (0.061 R)
• M22: 18,102,240 km (0.072 R)
• M23: 18,469,952 km (0.115 R)
• M24: 22,258,069 km (0.069 R)
• M25: 23,890,630 km (0.033 R)
• M26: 29,975,524 km (0.065 R)
• M27: 30,802,052 km (0.097 R)
• M28: 32,177,305 km (0.117 R)
• M29: 34,372,355 km (0.09 R)
• M30: 35,163,727 km (0.12 R)
• M31: 39,425,920 km (0.091 R)
• M32: 40,043,909 km (0.057 R)
• M33: 44,285,458 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 206.2

Radius: 7.8

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 6.84 AU - 7.28 AU

Year: 12112 Days

Day: 23.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 132.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 90,834,569 km

• M1: 97,239 km (0.082 R)
• M2: 410,646 km (0.101 R)
• M3: 707,748 km (0.12 R)
• M4: 1,671,307 km (0.044 R)
• M5: 3,392,281 km (0.101 R)
• M6: 5,275,120 km (0.092 R)
• M7: 6,422,087 km (0.038 R)
• M8: 7,611,839 km (0.088 R)
• M9: 10,421,137 km (0.115 R)
• M10: 13,348,169 km (0.104 R)
• M11: 15,889,388 km (0.095 R)
• M12: 18,876,409 km (0.095 R)
• M13: 20,988,132 km (0.026 R)
• M14: 24,905,802 km (0.101 R)
• M15: 27,260,173 km (0.107 R)
• M16: 33,943,009 km (0.115 R)
• M17: 34,782,253 km (0.087 R)
• M18: 35,850,382 km (0.027 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 892.6

Radius: 5.7

Gravity: 27.47 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 9.21 AU - 12.35 AU

Year: 22853 Days

Day: 24.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 90,834,569 km

• M1: 70,909 km (0.081 R)
• M2: 435,779 km (0.107 R)
• M3: 830,119 km (0.099 R)
• M4: 1,011,282 km (0.087 R)
• M5: 1,405,622 km (0.069 R)
• M6: 1,611,618 km (0.049 R)
• M7: 2,284,509 km (0.066 R)
• M8: 2,546,156 km (0.092 R)
• M9: 3,045,065 km (0.083 R)
• M10: 3,606,805 km (0.103 R)
• M11: 4,895,590 km (0.09 R)
• M12: 5,496,375 km (0.108 R)
• M13: 5,923,477 km (0.056 R)
• M14: 9,137,887 km (0.083 R)
• M15: 12,613,344 km (0.071 R)
• M16: 14,047,689 km (0.108 R)
• M17: 15,671,275 km (0.104 R)
• M18: 17,146,459 km (0.104 R)
• M19: 18,056,164 km (0.092 R)
• M20: 21,493,773 km (0.094 R)
• M21: 24,200,148 km (0.103 R)
• M22: 25,343,525 km (0.093 R)
• M23: 26,522,506 km (0.074 R)
• M24: 27,247,158 km (0.118 R)
• M25: 31,069,533 km (0.055 R)
• M26: 40,546,408 km (0.112 R)
• M27: 42,156,680 km (0.099 R)
• M28: 50,115,137 km (0.082 R)
• M29: 56,205,566 km (0.077 R)
• M30: 58,814,403 km (0.049 R)
• M31: 62,346,409 km (0.076 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 358 - 16,108 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit