🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.47

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.54 AU - 0.72 AU

Year: 328 Days

Day: 34.5 Hours

Environment

Temp: -131 °C

Axial Tilt: 44.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 750.2

Radius: 14.6

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.71 AU - 1.11 AU

Year: 569 Days

Day: 8.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 56,264,263 km

• M1: 181,612 km (0.079 R)
• M2: 662,419 km (0.063 R)
• M3: 1,178,532 km (0.103 R)
• M4: 1,824,346 km (0.11 R)
• M5: 2,404,337 km (0.08 R)
• M6: 3,275,296 km (0.082 R)
• M7: 4,959,169 km (0.094 R)
• M8: 5,502,808 km (0.108 R)
• M9: 7,101,411 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.3

Radius: 12.6

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.65 AU - 2.57 AU

Year: 2011 Days

Day: 14.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 56,264,263 km

• M1: 156,779 km (0.062 R)
• M2: 608,415 km (0.083 R)
• M3: 1,089,222 km (0.08 R)
• M4: 1,519,017 km (0.076 R)
• M5: 2,577,721 km (0.035 R)
• M6: 3,038,632 km (0.119 R)
• M7: 3,995,759 km (0.094 R)
• M8: 5,124,924 km (0.101 R)
• M9: 5,859,749 km (0.109 R)
• M10: 6,501,972 km (0.026 R)
• M11: 8,657,827 km (0.091 R)
• M12: 9,111,707 km (0.108 R)
• M13: 9,641,134 km (0.065 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375.7

Radius: 14.4

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 2.21 AU - 2.69 AU

Year: 2516 Days

Day: 8.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 56,264,263 km

• M1: 179,069 km (0.034 R)
• M2: 666,758 km (0.073 R)
• M3: 1,275,920 km (0.059 R)
• M4: 1,814,772 km (0.045 R)
• M5: 2,850,139 km (0.056 R)
• M6: 3,321,372 km (0.051 R)
• M7: 3,774,504 km (0.045 R)
• M8: 4,463,252 km (0.067 R)
• M9: 5,234,729 km (0.059 R)
• M10: 6,391,868 km (0.117 R)
• M11: 7,290,802 km (0.097 R)
• M12: 7,916,271 km (0.11 R)
• M13: 8,608,310 km (0.118 R)
• M14: 10,569,538 km (0.062 R)
• M15: 11,598,024 km (0.087 R)
• M16: 13,389,608 km (0.074 R)
• M17: 14,461,327 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 812.9

Radius: 13.5

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 3.57 AU - 5.39 AU

Year: 6221 Days

Day: 12.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 56,264,263 km

• M1: 168,148 km (0.082 R)
• M2: 884,423 km (0.104 R)
• M3: 1,454,989 km (0.089 R)
• M4: 2,613,325 km (0.09 R)
• M5: 3,325,112 km (0.089 R)
• M6: 4,498,857 km (0.068 R)
• M7: 5,996,780 km (0.043 R)
• M8: 6,807,451 km (0.099 R)
• M9: 7,922,105 km (0.084 R)
• M10: 8,814,456 km (0.083 R)
• M11: 9,682,872 km (0.096 R)
• M12: 11,590,245 km (0.104 R)
• M13: 12,579,236 km (0.078 R)
• M14: 15,698,053 km (0.11 R)
• M15: 17,907,314 km (0.106 R)
• M16: 22,536,620 km (0.085 R)
• M17: 24,325,212 km (0.081 R)
• M18: 27,817,126 km (0.092 R)
• M19: 33,454,572 km (0.088 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 62.8

Radius: 4.7

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 5.32 AU - 7 AU

Year: 10030 Days

Day: 16.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 108.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 56,264,263 km

• M1: 69,563 km (0.077 R)
• M2: 1,091,466 km (0.077 R)
• M3: 2,507,111 km (0.087 R)
• M4: 2,709,816 km (0.109 R)
• M5: 3,384,203 km (0.109 R)
• M6: 3,892,088 km (0.091 R)
• M7: 5,693,545 km (0.065 R)
• M8: 10,992,452 km (0.062 R)
• M9: 13,321,990 km (0.046 R)
• M10: 13,557,457 km (0.111 R)
• M11: 16,280,138 km (0.039 R)
• M12: 19,226,318 km (0.07 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 608.5

Radius: 5.6

Gravity: 19.4 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 5.43 AU - 8.87 AU

Year: 12542 Days

Day: 17.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 56,264,263 km

• M1: 79,586 km (0.111 R)
• M2: 327,919 km (0.056 R)
• M3: 517,309 km (0.087 R)
• M4: 800,199 km (0.039 R)
• M5: 1,021,155 km (0.109 R)
• M6: 1,573,171 km (0.081 R)
• M7: 1,992,943 km (0.03 R)
• M8: 2,736,743 km (0.044 R)
• M9: 3,006,319 km (0.092 R)
• M10: 4,236,313 km (0.091 R)
• M11: 5,144,222 km (0.115 R)
• M12: 5,769,242 km (0.077 R)
• M13: 6,062,603 km (0.113 R)
• M14: 6,679,545 km (0.099 R)
• M15: 6,962,135 km (0.108 R)
• M16: 8,082,474 km (0.071 R)
• M17: 8,685,503 km (0.079 R)
• M18: 11,745,677 km (0.118 R)
• M19: 12,397,475 km (0.105 R)
• M20: 14,231,096 km (0.101 R)
• M21: 14,835,172 km (0.077 R)
• M22: 16,094,038 km (0.116 R)
• M23: 20,380,167 km (0.057 R)
• M24: 23,102,399 km (0.09 R)
• M25: 27,266,157 km (0.085 R)
• M26: 33,402,961 km (0.106 R)
• M27: 40,532,795 km (0.099 R)
• M28: 50,595,197 km (0.088 R)
• M29: 52,789,349 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 899.5

Radius: 6.6

Gravity: 20.65 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 6.44 AU - 8.96 AU

Year: 14017 Days

Day: 18.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 56,264,263 km

• M1: 82,129 km (0.054 R)
• M2: 518,357 km (0.097 R)
• M3: 1,001,109 km (0.065 R)
• M4: 1,209,648 km (0.057 R)
• M5: 1,784,852 km (0.084 R)
• M6: 2,420,194 km (0.062 R)
• M7: 3,094,731 km (0.091 R)
• M8: 5,524,051 km (0.112 R)
• M9: 6,105,239 km (0.069 R)
• M10: 7,252,954 km (0.104 R)
• M11: 7,526,418 km (0.045 R)
• M12: 14,478,082 km (0.054 R)
• M13: 14,985,368 km (0.079 R)
• M14: 15,504,323 km (0.09 R)
• M15: 16,421,807 km (0.071 R)
• M16: 18,030,433 km (0.096 R)
• M17: 19,741,384 km (0.084 R)
• M18: 21,557,801 km (0.115 R)
• M19: 25,940,570 km (0.067 R)
• M20: 26,473,288 km (0.084 R)
• M21: 32,086,948 km (0.079 R)
• M22: 33,825,425 km (0.071 R)
• M23: 37,896,881 km (0.102 R)
• M24: 40,833,038 km (0.119 R)
• M25: 59,085,025 km (0.12 R)
• M26: 62,830,059 km (0.095 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 224.3

Radius: 6.7

Gravity: 5 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 8.47 AU - 12.47 AU

Year: 22224 Days

Day: 20.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 56,264,263 km

• M1: 83,476 km (0.096 R)
• M2: 322,234 km (0.061 R)
• M3: 532,718 km (0.065 R)
• M4: 1,189,153 km (0.106 R)
• M5: 1,757,027 km (0.084 R)
• M6: 2,596,720 km (0.088 R)
• M7: 3,289,358 km (0.102 R)
• M8: 4,275,507 km (0.075 R)
• M9: 4,488,086 km (0.105 R)
• M10: 5,340,494 km (0.068 R)
• M11: 7,063,862 km (0.071 R)
• M12: 8,259,448 km (0.061 R)
• M13: 8,686,400 km (0.054 R)
• M14: 9,481,513 km (0.108 R)
• M15: 10,324,198 km (0.072 R)
• M16: 11,273,247 km (0.087 R)
• M17: 15,870,838 km (0.111 R)
• M18: 16,980,406 km (0.071 R)
• M19: 20,361,467 km (0.068 R)
• M20: 27,572,832 km (0.108 R)
• M21: 28,848,005 km (0.075 R)
• M22: 33,144,755 km (0.063 R)
• M23: 36,192,811 km (0.104 R)
• M24: 39,956,694 km (0.093 R)
• M25: 51,516,869 km (0.092 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: 213 - 14,509 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit