🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 925.4

Radius: 12.9

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.7 AU - 0.92 AU

Year: 503 Days

Day: 11.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,878,677 km

• M1: 161,566 km (0.092 R)
• M2: 619,186 km (0.085 R)
• M3: 1,241,812 km (0.078 R)
• M4: 1,655,450 km (0.063 R)
• M5: 2,172,311 km (0.108 R)
• M6: 2,807,204 km (0.069 R)
• M7: 3,309,554 km (0.104 R)
• M8: 4,111,398 km (0.077 R)
• M9: 6,427,772 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 157

Radius: 12.5

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.98 AU - 1.22 AU

Year: 796 Days

Day: 7.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 70,878,677 km

• M1: 155,582 km (0.117 R)
• M2: 580,739 km (0.096 R)
• M3: 1,061,995 km (0.047 R)
• M4: 2,051,136 km (0.114 R)
• M5: 3,095,479 km (0.067 R)
• M6: 4,235,714 km (0.112 R)
• M7: 4,634,692 km (0.067 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501.2

Radius: 11.5

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.54 AU - 1.86 AU

Year: 1530 Days

Day: 7.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 70,878,677 km

• M1: 143,016 km (0.086 R)
• M2: 517,459 km (0.084 R)
• M3: 978,520 km (0.101 R)
• M4: 1,402,929 km (0.067 R)
• M5: 2,098,260 km (0.098 R)
• M6: 2,689,620 km (0.116 R)
• M7: 3,481,442 km (0.069 R)
• M8: 3,983,043 km (0.087 R)
• M9: 4,349,857 km (0.065 R)
• M10: 5,653,603 km (0.047 R)
• M11: 6,028,196 km (0.114 R)
• M12: 6,513,790 km (0.104 R)
• M13: 7,025,565 km (0.119 R)
• M14: 8,494,018 km (0.078 R)
• M15: 9,016,264 km (0.06 R)
• M16: 10,914,212 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 362.2

Radius: 10.5

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 1.94 AU - 2.9 AU

Year: 2599 Days

Day: 10.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 70,878,677 km

• M1: 130,599 km (0.069 R)
• M2: 619,784 km (0.103 R)
• M3: 1,080,695 km (0.111 R)
• M4: 1,509,891 km (0.089 R)
• M5: 2,087,189 km (0.108 R)
• M6: 2,636,662 km (0.088 R)
• M7: 3,666,045 km (0.077 R)
• M8: 4,007,428 km (0.103 R)
• M9: 4,651,297 km (0.107 R)
• M10: 4,987,593 km (0.107 R)
• M11: 6,345,942 km (0.108 R)
• M12: 6,734,298 km (0.084 R)
• M13: 7,558,732 km (0.085 R)
• M14: 9,145,666 km (0.093 R)
• M15: 12,721,354 km (0.097 R)
• M16: 13,382,427 km (0.083 R)
• M17: 14,773,089 km (0.077 R)
• M18: 15,364,898 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464.3

Radius: 10.9

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 2.05 AU - 2.93 AU

Year: 2712 Days

Day: 7.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 70,878,677 km

• M1: 135,536 km (0.103 R)
• M2: 532,269 km (0.025 R)
• M3: 1,214,436 km (0.067 R)
• M4: 1,773,782 km (0.059 R)
• M5: 2,182,633 km (0.084 R)
• M6: 2,938,401 km (0.087 R)
• M7: 3,712,720 km (0.095 R)
• M8: 4,368,707 km (0.087 R)
• M9: 4,965,453 km (0.084 R)
• M10: 5,713,292 km (0.106 R)
• M11: 7,432,770 km (0.081 R)
• M12: 9,823,344 km (0.088 R)
• M13: 11,823,169 km (0.079 R)
• M14: 14,629,625 km (0.044 R)
• M15: 15,050,443 km (0.057 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 28.3

Radius: 12.3

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 3.41 AU - 3.53 AU

Year: 4462 Days

Day: 7.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,878,677 km

• M1: 153,039 km (0.078 R)
• M2: 543,938 km (0.105 R)
• M3: 1,167,013 km (0.063 R)
• M4: 1,635,853 km (0.088 R)
• M5: 2,030,193 km (0.087 R)
• M6: 2,708,170 km (0.091 R)
• M7: 5,817,113 km (0.116 R)
• M8: 6,337,415 km (0.094 R)
• M9: 9,675,392 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70.5

Radius: 11.6

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 4.49 AU - 5.13 AU

Year: 7282 Days

Day: 12.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 70,878,677 km

• M1: 144,362 km (0.072 R)
• M2: 645,964 km (0.084 R)
• M3: 1,043,146 km (0.034 R)
• M4: 2,305,453 km (0.086 R)
• M5: 2,754,246 km (0.066 R)
• M6: 3,811,155 km (0.108 R)
• M7: 4,484,645 km (0.082 R)
• M8: 5,029,331 km (0.082 R)
• M9: 5,916,297 km (0.109 R)
• M10: 7,512,655 km (0.091 R)
• M11: 7,937,663 km (0.085 R)
• M12: 9,658,936 km (0.055 R)
• M13: 10,052,827 km (0.116 R)
• M14: 12,902,517 km (0.065 R)
• M15: 14,281,062 km (0.104 R)
• M16: 15,559,824 km (0.07 R)
• M17: 16,302,428 km (0.065 R)
• M18: 17,381,477 km (0.115 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.9

Radius: 13.4

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 4.47 AU - 5.17 AU

Year: 7304 Days

Day: 6.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 70,878,677 km

• M1: 180,864 km (0.072 R)
• M2: 610,509 km (0.114 R)
• M3: 1,151,754 km (0.09 R)
• M4: 1,664,725 km (0.041 R)
• M5: 2,554,533 km (0.083 R)
• M6: 3,107,896 km (0.044 R)
• M7: 3,694,619 km (0.113 R)
• M8: 5,506,398 km (0.082 R)
• M9: 6,007,701 km (0.089 R)
• M10: 6,711,858 km (0.052 R)
• M11: 7,508,168 km (0.119 R)
• M12: 8,694,329 km (0.118 R)
• M13: 12,308,614 km (0.11 R)
• M14: 12,950,388 km (0.093 R)
• M15: 14,593,721 km (0.117 R)
• M16: 16,822,281 km (0.107 R)
• M17: 17,613,205 km (0.086 R)
• M18: 21,330,263 km (0.086 R)
• M19: 23,452,907 km (0.049 R)
• M20: 25,369,405 km (0.111 R)
• M21: 25,885,967 km (0.114 R)
• M22: 27,659,150 km (0.066 R)
• M23: 29,417,374 km (0.101 R)
• M24: 31,347,635 km (0.085 R)
• M25: 33,566,770 km (0.101 R)
• M26: 34,504,150 km (0.114 R)
• M27: 35,032,381 km (0.093 R)
• M28: 35,566,146 km (0.09 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 339.3

Radius: 3.8

Gravity: 23.5 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 7.16 AU - 8.94 AU

Year: 15765 Days

Day: 24.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 70,878,677 km

• M1: 57,296 km (0.075 R)
• M2: 331,808 km (0.082 R)
• M3: 495,917 km (0.038 R)
• M4: 2,029,146 km (0.102 R)
• M5: 2,502,324 km (0.063 R)
• M6: 4,071,306 km (0.082 R)
• M7: 4,214,022 km (0.086 R)
• M8: 4,479,259 km (0.119 R)
• M9: 5,274,671 km (0.057 R)
• M10: 6,618,210 km (0.031 R)
• M11: 10,428,468 km (0.119 R)
• M12: 12,044,424 km (0.092 R)
• M13: 15,553,391 km (0.063 R)
• M14: 16,472,222 km (0.097 R)
• M15: 16,908,150 km (0.045 R)
• M16: 24,310,402 km (0.113 R)
• M17: 39,883,840 km (0.12 R)
• M18: 40,669,079 km (0.081 R)
• M19: 41,331,498 km (0.085 R)
• M20: 50,302,583 km (0.113 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 675.2

Radius: 3.5

Gravity: 55.12 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 7.69 AU - 9.97 AU

Year: 18111 Days

Day: 16.1 Hours

Environment

Temp: -243 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 70,878,677 km

• M1: 43,533 km (0.085 R)
• M2: 268,528 km (0.107 R)
• M3: 423,212 km (0.079 R)
• M4: 718,519 km (0.109 R)
• M5: 1,110,914 km (0.102 R)
• M6: 1,406,968 km (0.059 R)
• M7: 1,649,017 km (0.072 R)
• M8: 2,343,002 km (0.11 R)
• M9: 2,803,165 km (0.053 R)
• M10: 5,442,969 km (0.112 R)
• M11: 6,160,141 km (0.103 R)
• M12: 6,628,382 km (0.114 R)
• M13: 8,897,932 km (0.117 R)
• M14: 9,275,068 km (0.061 R)
• M15: 9,832,170 km (0.046 R)
• M16: 10,411,114 km (0.117 R)
• M17: 12,350,501 km (0.055 R)
• M18: 12,550,065 km (0.064 R)
• M19: 13,092,806 km (0.104 R)
• M20: 13,300,298 km (0.113 R)
• M21: 15,885,648 km (0.093 R)
• M22: 16,042,876 km (0.056 R)
• M23: 19,767,264 km (0.096 R)
• M24: 20,594,092 km (0.071 R)
• M25: 22,811,282 km (0.079 R)
• M26: 23,925,786 km (0.059 R)
• M27: 26,814,521 km (0.085 R)
• M28: 27,826,700 km (0.12 R)
• M29: 33,787,876 km (0.068 R)
• M30: 35,904,686 km (0.118 R)
• M31: 37,133,333 km (0.034 R)
• M32: 37,688,192 km (0.113 R)
• M33: 45,888,997 km (0.106 R)
• M34: 48,645,637 km (0.099 R)
• M35: 50,317,543 km (0.116 R)
• M36: 56,288,293 km (0.116 R)
• M37: 63,500,556 km (0.102 R)
• M38: 64,493,138 km (0.05 R)
• M39: 66,713,021 km (0.03 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 438 - 17,231 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit