🌌 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 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 756.7

Radius: 8.3

Gravity: 10.98 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.49 AU - 0.77 AU

Year: 333 Days

Day: 8.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,153,950 km

• M1: 103,223 km (0.067 R)
• M2: 684,261 km (0.091 R)
• M3: 1,034,768 km (0.026 R)
• M4: 1,355,058 km (0.097 R)
• M5: 1,636,451 km (0.034 R)
• M6: 1,911,262 km (0.084 R)
• M7: 2,355,269 km (0.059 R)
• M8: 2,717,445 km (0.065 R)
• M9: 3,542,777 km (0.094 R)
• M10: 3,981,996 km (0.065 R)
• M11: 4,307,970 km (0.042 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623

Radius: 14.8

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.89 AU - 1.19 AU

Year: 707 Days

Day: 11.4 Hours

Environment

Temp: -179 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 52,153,950 km

• M1: 184,155 km (0.105 R)
• M2: 758,910 km (0.058 R)
• M3: 1,313,170 km (0.118 R)
• M4: 1,834,818 km (0.098 R)
• M5: 2,324,601 km (0.096 R)
• M6: 3,277,241 km (0.052 R)
• M7: 3,837,485 km (0.096 R)
• M8: 4,588,167 km (0.109 R)
• M9: 5,471,093 km (0.071 R)
• M10: 6,146,977 km (0.062 R)
• M11: 6,669,223 km (0.119 R)
• M12: 7,553,496 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.7

Radius: 8.7

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.77 AU - 1.91 AU

Year: 1664 Days

Day: 11.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 52,153,950 km

• M1: 108,159 km (0.041 R)
• M2: 528,978 km (0.118 R)
• M3: 848,220 km (0.083 R)
• M4: 1,320,201 km (0.095 R)
• M5: 1,669,662 km (0.109 R)
• M6: 1,949,559 km (0.11 R)
• M7: 2,452,208 km (0.109 R)
• M8: 2,842,060 km (0.074 R)
• M9: 3,120,163 km (0.072 R)
• M10: 3,445,688 km (0.106 R)
• M11: 4,283,137 km (0.058 R)
• M12: 4,560,940 km (0.049 R)
• M13: 4,925,211 km (0.117 R)
• M14: 5,487,998 km (0.064 R)
• M15: 5,900,589 km (0.114 R)
• M16: 7,023,171 km (0.114 R)
• M17: 7,559,928 km (0.101 R)
• M18: 8,853,651 km (0.108 R)
• M19: 9,509,189 km (0.066 R)
• M20: 10,381,643 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 809

Radius: 10.8

Gravity: 6.94 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.73 AU - 2.41 AU

Year: 1986 Days

Day: 5.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 52,153,950 km

• M1: 134,339 km (0.097 R)
• M2: 509,979 km (0.05 R)
• M3: 1,562,400 km (0.085 R)
• M4: 2,247,858 km (0.098 R)
• M5: 2,813,936 km (0.089 R)
• M6: 3,220,693 km (0.096 R)
• M7: 3,793,802 km (0.089 R)
• M8: 4,747,638 km (0.085 R)
• M9: 5,212,289 km (0.104 R)
• M10: 5,610,519 km (0.062 R)
• M11: 6,285,055 km (0.093 R)
• M12: 6,682,537 km (0.097 R)
• M13: 8,349,207 km (0.115 R)
• M14: 8,863,075 km (0.088 R)
• M15: 10,313,277 km (0.075 R)
• M16: 12,036,196 km (0.098 R)
• M17: 14,759,924 km (0.066 R)
• M18: 16,191,277 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38.6

Radius: 14.3

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 2.25 AU - 3.51 AU

Year: 3259 Days

Day: 10.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 52,153,950 km

• M1: 177,872 km (0.097 R)
• M2: 723,455 km (0.1 R)
• M3: 4,177,072 km (0.08 R)
• M4: 4,776,062 km (0.106 R)
• M5: 6,687,324 km (0.09 R)
• M6: 7,838,928 km (0.04 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 337.5

Radius: 13.1

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 2.17 AU - 3.59 AU

Year: 3259 Days

Day: 12.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 139.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,153,950 km

• M1: 175,927 km (0.036 R)
• M2: 702,512 km (0.088 R)
• M3: 5,178,480 km (0.06 R)
• M4: 5,675,743 km (0.1 R)
• M5: 6,495,091 km (0.063 R)
• M6: 9,123,675 km (0.101 R)
• M7: 10,882,497 km (0.114 R)
• M8: 11,463,535 km (0.085 R)
• M9: 12,478,108 km (0.075 R)
• M10: 13,463,360 km (0.118 R)
• M11: 16,178,411 km (0.042 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 502.4

Radius: 6.2

Gravity: 13.07 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 5.78 AU - 6.56 AU

Year: 10220 Days

Day: 22.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 52,153,950 km

• M1: 78,090 km (0.119 R)
• M2: 349,909 km (0.094 R)
• M3: 630,854 km (0.113 R)
• M4: 1,247,497 km (0.109 R)
• M5: 1,650,513 km (0.08 R)
• M6: 2,259,077 km (0.061 R)
• M7: 3,251,809 km (0.051 R)
• M8: 3,509,716 km (0.083 R)
• M9: 4,066,669 km (0.105 R)
• M10: 4,394,437 km (0.063 R)
• M11: 4,710,239 km (0.094 R)
• M12: 5,355,155 km (0.118 R)
• M13: 5,715,686 km (0.107 R)
• M14: 7,973,716 km (0.11 R)
• M15: 9,068,922 km (0.037 R)
• M16: 9,628,867 km (0.084 R)
• M17: 9,868,822 km (0.069 R)
• M18: 10,360,849 km (0.104 R)
• M19: 12,894,439 km (0.111 R)
• M20: 14,585,194 km (0.115 R)
• M21: 15,813,393 km (0.072 R)
• M22: 17,249,382 km (0.116 R)
• M23: 18,473,841 km (0.106 R)
• M24: 21,827,676 km (0.086 R)
• M25: 24,572,049 km (0.088 R)
• M26: 26,492,885 km (0.079 R)
• M27: 27,441,934 km (0.084 R)
• M28: 28,610,294 km (0.063 R)
• M29: 31,465,070 km (0.114 R)
• M30: 33,616,586 km (0.096 R)
• M31: 37,852,151 km (0.089 R)
• M32: 42,558,500 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 166.6

Radius: 4.2

Gravity: 9.44 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 8.62 AU - 12.58 AU

Year: 23014 Days

Day: 15 Hours

Environment

Temp: -226 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 52,153,950 km

• M1: 52,210 km (0.062 R)
• M2: 253,868 km (0.094 R)
• M3: 507,735 km (0.047 R)
• M4: 754,572 km (0.098 R)
• M5: 1,233,135 km (0.111 R)
• M6: 1,711,998 km (0.073 R)
• M7: 2,229,158 km (0.113 R)
• M8: 3,025,467 km (0.049 R)
• M9: 3,312,246 km (0.104 R)
• M10: 4,799,997 km (0.092 R)
• M11: 19,906,989 km (0.084 R)
• M12: 24,587,457 km (0.072 R)
• M13: 24,872,441 km (0.108 R)
• M14: 32,275,591 km (0.117 R)
• M15: 34,007,635 km (0.111 R)
• M16: 38,288,229 km (0.046 R)
• M17: 39,185,217 km (0.053 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 315 - 10,526 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit