🌌 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: 59.5

Radius: 13.5

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.54 AU - 0.64 AU

Year: 313 Days

Day: 5.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 34,441,025 km

• M1: 172,786 km (0.039 R)
• M2: 610,359 km (0.091 R)
• M3: 1,305,241 km (0.055 R)
• M4: 1,921,734 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 398.7

Radius: 9.1

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.84 AU - 1.1 AU

Year: 659 Days

Day: 10.8 Hours

Environment

Temp: -168 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 34,441,025 km

• M1: 113,246 km (0.041 R)
• M2: 438,322 km (0.088 R)
• M3: 831,914 km (0.112 R)
• M4: 1,146,518 km (0.084 R)
• M5: 1,803,851 km (0.086 R)
• M6: 2,176,350 km (0.079 R)
• M7: 2,975,801 km (0.107 R)
• M8: 3,375,227 km (0.087 R)
• M9: 3,665,447 km (0.094 R)
• M10: 4,139,373 km (0.108 R)
• M11: 4,428,247 km (0.083 R)
• M12: 5,127,916 km (0.079 R)
• M13: 5,599,448 km (0.078 R)
• M14: 6,493,894 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 741

Radius: 13.2

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.07 AU - 1.45 AU

Year: 976 Days

Day: 9.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 34,441,025 km

• M1: 164,258 km (0.105 R)
• M2: 732,132 km (0.085 R)
• M3: 1,157,140 km (0.055 R)
• M4: 2,209,411 km (0.103 R)
• M5: 2,647,134 km (0.043 R)
• M6: 3,102,809 km (0.102 R)
• M7: 4,109,603 km (0.1 R)
• M8: 4,797,454 km (0.033 R)
• M9: 5,421,576 km (0.113 R)
• M10: 6,056,769 km (0.106 R)
• M11: 6,996,094 km (0.098 R)
• M12: 7,427,385 km (0.063 R)
• M13: 8,159,965 km (0.086 R)
• M14: 9,420,328 km (0.111 R)
• M15: 10,279,169 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.7

Radius: 10.1

Gravity: 9.05 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 3.93 AU - 4.07 AU

Year: 5522 Days

Day: 12.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 34,441,025 km

• M1: 128,355 km (0.067 R)
• M2: 848,070 km (0.1 R)
• M3: 1,173,147 km (0.078 R)
• M4: 1,754,633 km (0.089 R)
• M5: 2,248,007 km (0.068 R)
• M6: 2,812,889 km (0.068 R)
• M7: 3,150,082 km (0.073 R)
• M8: 3,741,742 km (0.073 R)
• M9: 4,076,841 km (0.053 R)
• M10: 4,617,189 km (0.108 R)
• M11: 5,501,761 km (0.077 R)
• M12: 6,495,390 km (0.104 R)
• M13: 7,053,091 km (0.099 R)
• M14: 7,871,690 km (0.109 R)
• M15: 8,224,293 km (0.046 R)
• M16: 9,131,005 km (0.115 R)
• M17: 9,786,394 km (0.091 R)
• M18: 10,756,536 km (0.081 R)
• M19: 11,388,288 km (0.113 R)
• M20: 11,993,411 km (0.094 R)
• M21: 13,377,790 km (0.119 R)
• M22: 13,768,090 km (0.104 R)
• M23: 15,224,426 km (0.056 R)
• M24: 15,588,697 km (0.113 R)
• M25: 17,169,796 km (0.111 R)
• M26: 17,831,169 km (0.048 R)
• M27: 18,304,197 km (0.054 R)
• M28: 18,855,016 km (0.092 R)
• M29: 19,345,997 km (0.113 R)
• M30: 19,702,040 km (0.043 R)
• M31: 20,796,049 km (0.084 R)
• M32: 29,427,696 km (0.037 R)
• M33: 33,338,484 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 931.2

Radius: 13.2

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 3.21 AU - 4.91 AU

Year: 5647 Days

Day: 5.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 34,441,025 km

• M1: 165,754 km (0.044 R)
• M2: 1,292,825 km (0.11 R)
• M3: 1,793,379 km (0.062 R)
• M4: 2,440,839 km (0.088 R)
• M5: 3,656,322 km (0.108 R)
• M6: 4,491,227 km (0.119 R)
• M7: 5,509,989 km (0.12 R)
• M8: 6,746,714 km (0.094 R)
• M9: 10,311,931 km (0.111 R)
• M10: 11,418,955 km (0.119 R)
• M11: 16,204,741 km (0.071 R)
• M12: 18,377,350 km (0.1 R)
• M13: 18,862,197 km (0.11 R)
• M14: 19,284,362 km (0.098 R)
• M15: 20,887,154 km (0.108 R)
• M16: 25,880,132 km (0.118 R)
• M17: 28,283,871 km (0.111 R)
• M18: 28,837,682 km (0.087 R)
• M19: 35,844,248 km (0.085 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 41.2

Radius: 7.9

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 5.66 AU - 8.3 AU

Year: 12729 Days

Day: 19.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 34,441,025 km

• M1: 105,167 km (0.1 R)
• M2: 1,994,439 km (0.065 R)
• M3: 2,378,157 km (0.089 R)
• M4: 3,672,628 km (0.111 R)
• M5: 4,585,474 km (0.056 R)
• M6: 10,599,608 km (0.084 R)
• M7: 11,426,136 km (0.1 R)
• M8: 12,563,977 km (0.119 R)
• M9: 13,113,899 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 388.4

Radius: 5.1

Gravity: 14.93 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 8.46 AU - 8.5 AU

Year: 17045 Days

Day: 23.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 34,441,025 km

• M1: 63,429 km (0.117 R)
• M2: 254,316 km (0.114 R)
• M3: 495,767 km (0.066 R)
• M4: 946,955 km (0.119 R)
• M5: 1,226,703 km (0.105 R)
• M6: 1,414,149 km (0.073 R)
• M7: 1,667,867 km (0.039 R)
• M8: 1,951,355 km (0.042 R)
• M9: 3,521,983 km (0.073 R)
• M10: 4,105,115 km (0.062 R)
• M11: 6,047,494 km (0.093 R)
• M12: 8,819,991 km (0.044 R)
• M13: 9,166,909 km (0.119 R)
• M14: 10,869,781 km (0.039 R)
• M15: 11,384,248 km (0.079 R)
• M16: 12,277,647 km (0.086 R)
• M17: 13,410,252 km (0.042 R)
• M18: 15,026,358 km (0.083 R)
• M19: 22,333,616 km (0.106 R)
• M20: 25,379,578 km (0.078 R)
• M21: 30,115,099 km (0.112 R)
• M22: 30,562,396 km (0.111 R)
• M23: 31,356,013 km (0.111 R)
• M24: 33,340,429 km (0.108 R)
• M25: 33,819,291 km (0.104 R)
• M26: 35,407,123 km (0.106 R)
• M27: 39,259,568 km (0.071 R)
• M28: 47,784,253 km (0.107 R)
• M29: 48,699,044 km (0.12 R)
• M30: 51,992,590 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 55.3

Radius: 4.1

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 8.78 AU - 10.98 AU

Year: 21436 Days

Day: 23.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 34,441,025 km

• M1: 51,162 km (0.081 R)
• M2: 181,612 km (0.066 R)
• M3: 392,844 km (0.081 R)
• M4: 601,383 km (0.118 R)
• M5: 1,007,691 km (0.037 R)
• M6: 1,438,683 km (0.026 R)
• M7: 1,655,450 km (0.116 R)
• M8: 2,473,601 km (0.087 R)
• M9: 2,862,256 km (0.072 R)
• M10: 9,451,893 km (0.074 R)
• M11: 9,759,316 km (0.096 R)
• M12: 10,210,055 km (0.085 R)
• M13: 12,152,733 km (0.117 R)
• M14: 12,621,423 km (0.107 R)
• M15: 14,734,044 km (0.056 R)
• M16: 20,361,317 km (0.104 R)
• M17: 26,137,590 km (0.118 R)
• M18: 29,722,703 km (0.034 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 456 - 14,419 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit