🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 809.8

Radius: 14.1

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.73 AU - 0.75 AU

Year: 405 Days

Day: 12 Hours

Environment

Temp: -142 °C

Axial Tilt: 128 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,459,599 km

• M1: 175,329 km (0.108 R)
• M2: 652,696 km (0.119 R)
• M3: 1,204,712 km (0.032 R)
• M4: 1,790,088 km (0.043 R)
• M5: 2,573,383 km (0.116 R)
• M6: 3,023,822 km (0.079 R)
• M7: 3,479,347 km (0.101 R)
• M8: 4,007,428 km (0.076 R)
• M9: 4,488,235 km (0.083 R)
• M10: 5,419,332 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 677.8

Radius: 14

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 3.71 AU - 3.79 AU

Year: 4617 Days

Day: 9.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,459,599 km

• M1: 174,880 km (0.079 R)
• M2: 638,783 km (0.058 R)
• M3: 1,094,757 km (0.106 R)
• M4: 1,975,589 km (0.091 R)
• M5: 2,690,069 km (0.117 R)
• M6: 3,349,796 km (0.117 R)
• M7: 4,492,574 km (0.106 R)
• M8: 5,289,033 km (0.086 R)
• M9: 6,423,134 km (0.052 R)
• M10: 7,678,260 km (0.08 R)
• M11: 10,069,133 km (0.103 R)
• M12: 13,273,071 km (0.091 R)
• M13: 16,331,151 km (0.043 R)
• M14: 16,863,121 km (0.095 R)
• M15: 18,848,883 km (0.084 R)
• M16: 24,259,240 km (0.1 R)
• M17: 25,579,740 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 263.7

Radius: 9

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 3.68 AU - 5.52 AU

Year: 6273 Days

Day: 14.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,459,599 km

• M1: 112,049 km (0.109 R)
• M2: 504,743 km (0.043 R)
• M3: 1,764,656 km (0.102 R)
• M4: 3,546,367 km (0.05 R)
• M5: 4,923,116 km (0.103 R)
• M6: 6,564,355 km (0.112 R)
• M7: 8,875,193 km (0.1 R)
• M8: 9,806,440 km (0.077 R)
• M9: 12,512,366 km (0.053 R)
• M10: 18,472,644 km (0.077 R)
• M11: 23,691,067 km (0.085 R)
• M12: 24,796,146 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.8

Radius: 11.4

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 4.83 AU - 5.23 AU

Year: 7173 Days

Day: 12 Hours

Environment

Temp: -227 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,459,599 km

• M1: 141,819 km (0.078 R)
• M2: 1,463,217 km (0.04 R)
• M3: 2,583,705 km (0.069 R)
• M4: 3,800,085 km (0.093 R)
• M5: 4,510,376 km (0.119 R)
• M6: 5,723,914 km (0.094 R)
• M7: 7,323,115 km (0.111 R)
• M8: 7,917,168 km (0.052 R)
• M9: 8,423,108 km (0.108 R)
• M10: 12,027,669 km (0.077 R)
• M11: 18,913,060 km (0.107 R)
• M12: 20,462,894 km (0.089 R)
• M13: 23,494,944 km (0.109 R)
• M14: 29,132,689 km (0.105 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 154.2

Radius: 6.3

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 5.42 AU - 8.38 AU

Year: 11524 Days

Day: 23.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,459,599 km

• M1: 80,932 km (0.088 R)
• M2: 772,673 km (0.101 R)
• M3: 2,018,973 km (0.079 R)
• M4: 2,895,766 km (0.061 R)
• M5: 3,129,887 km (0.104 R)
• M6: 6,124,986 km (0.112 R)
• M7: 6,847,095 km (0.114 R)
• M8: 8,697,620 km (0.113 R)
• M9: 11,329,196 km (0.081 R)
• M10: 18,031,331 km (0.091 R)
• M11: 18,227,753 km (0.069 R)
• M12: 30,819,854 km (0.085 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 364.5

Radius: 7.7

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 6.77 AU - 8.91 AU

Year: 13957 Days

Day: 17.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,459,599 km

• M1: 113,844 km (0.072 R)
• M2: 465,848 km (0.103 R)
• M3: 1,301,202 km (0.109 R)
• M4: 1,712,148 km (0.054 R)
• M5: 2,298,571 km (0.095 R)
• M6: 4,932,391 km (0.111 R)
• M7: 8,019,792 km (0.115 R)
• M8: 8,417,423 km (0.088 R)
• M9: 10,397,351 km (0.069 R)
• M10: 14,205,664 km (0.076 R)
• M11: 16,419,114 km (0.113 R)
• M12: 18,545,798 km (0.111 R)
• M13: 21,517,111 km (0.116 R)
• M14: 22,895,057 km (0.097 R)
• M15: 26,112,608 km (0.115 R)
• M16: 29,307,120 km (0.103 R)
• M17: 30,356,550 km (0.103 R)
• M18: 32,087,397 km (0.081 R)
• M19: 37,673,381 km (0.098 R)
• M20: 39,797,522 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 205

Radius: 6.8

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 8.84 AU - 13.66 AU

Year: 23992 Days

Day: 16.5 Hours

Environment

Temp: -235 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 57,459,599 km

• M1: 84,523 km (0.111 R)
• M2: 478,115 km (0.071 R)
• M3: 791,822 km (0.1 R)
• M4: 1,104,631 km (0.095 R)
• M5: 1,602,941 km (0.116 R)
• M6: 2,502,623 km (0.118 R)
• M7: 3,110,140 km (0.061 R)
• M8: 5,816,216 km (0.083 R)
• M9: 6,390,223 km (0.074 R)
• M10: 7,342,862 km (0.092 R)
• M11: 10,710,011 km (0.042 R)
• M12: 11,049,149 km (0.102 R)
• M13: 12,415,726 km (0.085 R)
• M14: 13,758,666 km (0.085 R)
• M15: 14,914,609 km (0.109 R)
• M16: 17,966,405 km (0.098 R)
• M17: 20,188,981 km (0.097 R)
• M18: 21,321,736 km (0.106 R)
• M19: 26,791,782 km (0.088 R)
• M20: 27,103,095 km (0.1 R)
• M21: 27,945,181 km (0.111 R)
• M22: 29,792,266 km (0.054 R)
• M23: 41,080,024 km (0.091 R)
• M24: 41,910,891 km (0.057 R)
• M25: 42,753,127 km (0.116 R)
• M26: 51,164,267 km (0.076 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 328 - 11,969 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit