🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.5

Radius: 10.1

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.76 AU - 1.24 AU

Year: 656 Days

Day: 5.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,756,496 km

• M1: 131,197 km (0.117 R)
• M2: 451,187 km (0.113 R)
• M3: 785,239 km (0.082 R)
• M4: 1,235,678 km (0.094 R)
• M5: 1,964,370 km (0.119 R)
• M6: 2,365,741 km (0.06 R)
• M7: 2,719,839 km (0.111 R)
• M8: 3,500,141 km (0.078 R)
• M9: 3,859,176 km (0.06 R)
• M10: 4,964,555 km (0.108 R)
• M11: 5,338,998 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 577.4

Radius: 13.4

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.14 AU - 1.68 AU

Year: 1098 Days

Day: 10.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 162.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,756,496 km

• M1: 166,652 km (0.102 R)
• M2: 705,504 km (0.097 R)
• M3: 1,275,621 km (0.071 R)
• M4: 1,748,949 km (0.106 R)
• M5: 2,191,310 km (0.114 R)
• M6: 2,857,768 km (0.05 R)
• M7: 4,340,881 km (0.055 R)
• M8: 4,813,311 km (0.077 R)
• M9: 5,281,403 km (0.027 R)
• M10: 5,945,917 km (0.113 R)
• M11: 6,575,574 km (0.116 R)
• M12: 7,467,477 km (0.102 R)
• M13: 8,789,623 km (0.071 R)
• M14: 9,608,073 km (0.111 R)
• M15: 10,201,677 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.4

Radius: 13.9

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.87 AU - 2.07 AU

Year: 1814 Days

Day: 11.7 Hours

Environment

Temp: -195 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,756,496 km

• M1: 172,935 km (0.057 R)
• M2: 624,721 km (0.063 R)
• M3: 1,307,336 km (0.115 R)
• M4: 1,968,558 km (0.114 R)
• M5: 2,464,924 km (0.092 R)
• M6: 2,998,689 km (0.067 R)
• M7: 3,504,779 km (0.101 R)
• M8: 4,884,370 km (0.09 R)
• M9: 5,332,117 km (0.083 R)
• M10: 5,905,675 km (0.032 R)
• M11: 7,581,022 km (0.099 R)
• M12: 10,809,194 km (0.029 R)
• M13: 12,293,205 km (0.064 R)
• M14: 13,601,289 km (0.106 R)
• M15: 14,493,191 km (0.082 R)
• M16: 15,234,598 km (0.098 R)
• M17: 16,542,832 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 885.8

Radius: 8.1

Gravity: 13.5 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 2.24 AU - 3.36 AU

Year: 3074 Days

Day: 6.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 57,756,496 km

• M1: 100,829 km (0.088 R)
• M2: 374,144 km (0.075 R)
• M3: 631,901 km (0.116 R)
• M4: 1,187,358 km (0.083 R)
• M5: 1,818,063 km (0.049 R)
• M6: 2,528,354 km (0.107 R)
• M7: 3,150,830 km (0.074 R)
• M8: 4,019,545 km (0.118 R)
• M9: 4,793,565 km (0.114 R)
• M10: 5,772,383 km (0.071 R)
• M11: 7,223,632 km (0.062 R)
• M12: 7,679,607 km (0.082 R)
• M13: 8,977,219 km (0.084 R)
• M14: 9,275,966 km (0.108 R)
• M15: 10,870,679 km (0.116 R)
• M16: 11,955,563 km (0.069 R)
• M17: 13,839,000 km (0.102 R)
• M18: 16,130,241 km (0.073 R)
• M19: 16,796,550 km (0.113 R)
• M20: 17,136,436 km (0.076 R)
• M21: 19,027,652 km (0.096 R)
• M22: 19,335,226 km (0.083 R)
• M23: 22,390,912 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 551.3

Radius: 13

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 2.56 AU - 3.58 AU

Year: 3529 Days

Day: 14.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 57,756,496 km

• M1: 167,998 km (0.031 R)
• M2: 899,532 km (0.089 R)
• M3: 1,317,957 km (0.061 R)
• M4: 2,031,689 km (0.092 R)
• M5: 2,471,058 km (0.083 R)
• M6: 6,316,022 km (0.117 R)
• M7: 8,039,090 km (0.101 R)
• M8: 9,711,894 km (0.097 R)
• M9: 10,450,159 km (0.097 R)
• M10: 11,100,611 km (0.065 R)
• M11: 11,951,523 km (0.065 R)
• M12: 12,891,297 km (0.08 R)
• M13: 13,450,045 km (0.093 R)
• M14: 13,976,480 km (0.104 R)
• M15: 16,382,164 km (0.1 R)
• M16: 19,534,041 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 203

Radius: 12.7

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 3.05 AU - 3.21 AU

Year: 3633 Days

Day: 13 Hours

Environment

Temp: -206 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,756,496 km

• M1: 158,125 km (0.088 R)
• M2: 690,843 km (0.082 R)
• M3: 1,244,205 km (0.094 R)
• M4: 1,705,865 km (0.101 R)
• M5: 2,766,065 km (0.092 R)
• M6: 3,383,605 km (0.082 R)
• M7: 3,851,098 km (0.103 R)
• M8: 5,450,898 km (0.086 R)
• M9: 6,323,352 km (0.07 R)
• M10: 7,657,765 km (0.075 R)
• M11: 8,944,457 km (0.106 R)
• M12: 9,605,679 km (0.097 R)
• M13: 11,440,048 km (0.072 R)
• M14: 13,841,543 km (0.117 R)
• M15: 14,279,566 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 964.7

Radius: 5.8

Gravity: 28.68 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 5.16 AU - 7.16 AU

Year: 10030 Days

Day: 23.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 57,756,496 km

• M1: 72,405 km (0.039 R)
• M2: 276,158 km (0.11 R)
• M3: 555,906 km (0.117 R)
• M4: 1,410,708 km (0.097 R)
• M5: 1,704,967 km (0.064 R)
• M6: 2,057,270 km (0.091 R)
• M7: 2,337,916 km (0.116 R)
• M8: 2,839,667 km (0.049 R)
• M9: 3,487,126 km (0.113 R)
• M10: 4,466,992 km (0.075 R)
• M11: 5,271,081 km (0.075 R)
• M12: 6,712,008 km (0.087 R)
• M13: 6,954,955 km (0.107 R)
• M14: 10,399,745 km (0.096 R)
• M15: 11,169,875 km (0.055 R)
• M16: 12,761,446 km (0.111 R)
• M17: 13,772,728 km (0.088 R)
• M18: 14,904,585 km (0.072 R)
• M19: 20,306,265 km (0.113 R)
• M20: 20,559,535 km (0.098 R)
• M21: 25,781,547 km (0.095 R)
• M22: 26,277,913 km (0.077 R)
• M23: 26,780,562 km (0.115 R)
• M24: 29,390,446 km (0.107 R)
• M25: 30,041,048 km (0.057 R)
• M26: 33,205,192 km (0.043 R)
• M27: 33,674,481 km (0.056 R)
• M28: 35,841,855 km (0.074 R)
• M29: 37,337,235 km (0.072 R)
• M30: 37,717,513 km (0.115 R)
• M31: 39,133,756 km (0.07 R)
• M32: 44,583,307 km (0.088 R)
• M33: 51,921,382 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 913.8

Radius: 6.7

Gravity: 20.36 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 7.18 AU - 7.2 AU

Year: 12647 Days

Day: 24.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 57,756,496 km

• M1: 83,326 km (0.093 R)
• M2: 331,060 km (0.109 R)
• M3: 598,840 km (0.094 R)
• M4: 1,337,255 km (0.11 R)
• M5: 1,901,539 km (0.114 R)
• M6: 2,462,979 km (0.107 R)
• M7: 3,006,768 km (0.11 R)
• M8: 4,424,656 km (0.115 R)
• M9: 5,261,656 km (0.088 R)
• M10: 5,699,080 km (0.099 R)
• M11: 8,798,599 km (0.108 R)
• M12: 13,262,001 km (0.089 R)
• M13: 15,640,158 km (0.074 R)
• M14: 17,321,937 km (0.03 R)
• M15: 18,952,255 km (0.082 R)
• M16: 21,954,385 km (0.065 R)
• M17: 22,609,474 km (0.07 R)
• M18: 24,353,935 km (0.042 R)
• M19: 28,880,767 km (0.071 R)
• M20: 32,351,437 km (0.119 R)
• M21: 34,062,238 km (0.102 R)
• M22: 36,609,741 km (0.081 R)
• M23: 41,937,220 km (0.102 R)
• M24: 58,085,861 km (0.119 R)
• M25: 60,607,333 km (0.117 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 586.8

Radius: 5.4

Gravity: 20.12 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 7.43 AU - 8.17 AU

Year: 14291 Days

Day: 17.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 57,756,496 km

• M1: 67,469 km (0.08 R)
• M2: 290,369 km (0.101 R)
• M3: 508,184 km (0.114 R)
• M4: 1,228,049 km (0.077 R)
• M5: 1,656,198 km (0.108 R)
• M6: 2,849,391 km (0.094 R)
• M7: 3,182,994 km (0.066 R)
• M8: 3,927,991 km (0.12 R)
• M9: 4,101,674 km (0.087 R)
• M10: 4,464,599 km (0.09 R)
• M11: 6,133,363 km (0.109 R)
• M12: 9,509,039 km (0.113 R)
• M13: 9,823,195 km (0.068 R)
• M14: 10,920,345 km (0.116 R)
• M15: 12,219,154 km (0.075 R)
• M16: 14,838,463 km (0.077 R)
• M17: 17,262,996 km (0.074 R)
• M18: 19,769,957 km (0.092 R)
• M19: 20,627,751 km (0.094 R)
• M20: 22,233,684 km (0.091 R)
• M21: 23,729,663 km (0.102 R)
• M22: 24,894,881 km (0.083 R)
• M23: 25,591,857 km (0.106 R)
• M24: 28,080,418 km (0.077 R)
• M25: 33,652,939 km (0.077 R)
• M26: 37,534,255 km (0.042 R)
• M27: 41,982,698 km (0.053 R)
• M28: 42,544,587 km (0.103 R)
• M29: 43,683,625 km (0.118 R)
• M30: 43,971,601 km (0.034 R)
• M31: 47,983,068 km (0.062 R)
• M32: 48,597,317 km (0.105 R)
• M33: 50,630,053 km (0.116 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 382 - 14,815 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit