🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.5

Radius: 9.9

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.69 AU - 0.89 AU

Year: 494 Days

Day: 10.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 57,815,525 km

• M1: 125,363 km (0.093 R)
• M2: 500,405 km (0.063 R)
• M3: 1,208,900 km (0.091 R)
• M4: 2,283,163 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 294.7

Radius: 9.9

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.75 AU - 0.93 AU

Year: 541 Days

Day: 9.2 Hours

Environment

Temp: -176 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,815,525 km

• M1: 123,119 km (0.101 R)
• M2: 451,486 km (0.099 R)
• M3: 892,650 km (0.088 R)
• M4: 1,203,814 km (0.119 R)
• M5: 1,543,401 km (0.107 R)
• M6: 1,886,429 km (0.077 R)
• M7: 2,341,655 km (0.074 R)
• M8: 2,858,965 km (0.1 R)
• M9: 3,371,487 km (0.069 R)
• M10: 4,636,487 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 674.7

Radius: 9.8

Gravity: 7.03 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.69 AU - 2.33 AU

Year: 2003 Days

Day: 12.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 57,815,525 km

• M1: 121,922 km (0.103 R)
• M2: 678,127 km (0.107 R)
• M3: 1,206,357 km (0.04 R)
• M4: 1,598,603 km (0.061 R)
• M5: 2,040,066 km (0.117 R)
• M6: 2,374,268 km (0.098 R)
• M7: 2,745,121 km (0.076 R)
• M8: 3,170,577 km (0.081 R)
• M9: 3,764,032 km (0.057 R)
• M10: 4,654,887 km (0.037 R)
• M11: 5,194,936 km (0.115 R)
• M12: 5,704,167 km (0.086 R)
• M13: 6,425,977 km (0.107 R)
• M14: 7,263,725 km (0.102 R)
• M15: 8,702,108 km (0.077 R)
• M16: 10,286,200 km (0.08 R)
• M17: 10,756,237 km (0.081 R)
• M18: 11,165,237 km (0.08 R)
• M19: 12,699,513 km (0.066 R)
• M20: 14,147,919 km (0.094 R)
• M21: 15,656,016 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.8

Radius: 12.3

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.84 AU - 2.22 AU

Year: 2033 Days

Day: 12.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,815,525 km

• M1: 153,039 km (0.087 R)
• M2: 563,236 km (0.09 R)
• M3: 977,472 km (0.065 R)
• M4: 1,396,646 km (0.116 R)
• M5: 1,835,267 km (0.068 R)
• M6: 3,130,186 km (0.096 R)
• M7: 3,578,381 km (0.067 R)
• M8: 4,781,148 km (0.11 R)
• M9: 5,314,614 km (0.097 R)
• M10: 5,774,328 km (0.109 R)
• M11: 7,289,007 km (0.1 R)
• M12: 7,692,323 km (0.091 R)
• M13: 8,110,598 km (0.119 R)
• M14: 10,536,328 km (0.112 R)
• M15: 11,478,645 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.9

Radius: 11.3

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 2.7 AU - 3.14 AU

Year: 3507 Days

Day: 6.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 57,815,525 km

• M1: 140,622 km (0.102 R)
• M2: 549,922 km (0.068 R)
• M3: 1,455,737 km (0.118 R)
• M4: 1,865,485 km (0.111 R)
• M5: 2,543,463 km (0.092 R)
• M6: 3,059,127 km (0.073 R)
• M7: 4,045,874 km (0.1 R)
• M8: 4,892,898 km (0.116 R)
• M9: 5,258,365 km (0.025 R)
• M10: 5,641,934 km (0.105 R)
• M11: 6,044,352 km (0.096 R)
• M12: 6,408,623 km (0.097 R)
• M13: 6,847,095 km (0.12 R)
• M14: 9,571,870 km (0.088 R)
• M15: 9,952,148 km (0.093 R)
• M16: 10,421,736 km (0.116 R)
• M17: 14,479,428 km (0.025 R)
• M18: 15,546,809 km (0.101 R)
• M19: 16,394,580 km (0.12 R)
• M20: 16,884,962 km (0.086 R)
• M21: 18,124,829 km (0.075 R)
• M22: 19,424,386 km (0.118 R)
• M23: 20,345,460 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 680.3

Radius: 13.2

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 2.8 AU - 3.18 AU

Year: 3634 Days

Day: 9.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 57,815,525 km

• M1: 164,258 km (0.101 R)
• M2: 594,203 km (0.095 R)
• M3: 1,274,125 km (0.096 R)
• M4: 1,918,293 km (0.053 R)
• M5: 2,383,244 km (0.076 R)
• M6: 3,080,370 km (0.085 R)
• M7: 3,765,528 km (0.082 R)
• M8: 5,311,323 km (0.12 R)
• M9: 6,299,716 km (0.052 R)
• M10: 7,246,072 km (0.072 R)
• M11: 7,703,542 km (0.073 R)
• M12: 8,568,667 km (0.108 R)
• M13: 9,344,481 km (0.075 R)
• M14: 9,808,534 km (0.081 R)
• M15: 10,247,454 km (0.106 R)
• M16: 10,951,761 km (0.115 R)
• M17: 12,090,949 km (0.039 R)
• M18: 13,995,928 km (0.04 R)
• M19: 15,177,901 km (0.078 R)
• M20: 16,537,147 km (0.105 R)
• M21: 17,102,926 km (0.092 R)
• M22: 17,564,884 km (0.113 R)
• M23: 18,453,496 km (0.08 R)
• M24: 18,939,539 km (0.075 R)
• M25: 19,937,357 km (0.089 R)
• M26: 20,513,907 km (0.09 R)
• M27: 21,366,316 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 655.4

Radius: 14.1

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 2.82 AU - 3.22 AU

Year: 3689 Days

Day: 5.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 57,815,525 km

• M1: 175,777 km (0.081 R)
• M2: 660,774 km (0.094 R)
• M3: 1,338,602 km (0.116 R)
• M4: 1,777,671 km (0.108 R)
• M5: 2,553,785 km (0.094 R)
• M6: 3,226,676 km (0.081 R)
• M7: 3,665,597 km (0.056 R)
• M8: 4,166,450 km (0.112 R)
• M9: 5,516,571 km (0.12 R)
• M10: 6,092,224 km (0.078 R)
• M11: 6,860,558 km (0.108 R)
• M12: 7,792,852 km (0.096 R)
• M13: 8,377,630 km (0.086 R)
• M14: 9,404,919 km (0.109 R)
• M15: 10,068,535 km (0.109 R)
• M16: 11,754,054 km (0.1 R)
• M17: 12,432,181 km (0.086 R)
• M18: 15,197,947 km (0.111 R)
• M19: 17,178,922 km (0.088 R)
• M20: 18,291,481 km (0.113 R)
• M21: 19,513,696 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 764.6

Radius: 4.6

Gravity: 36.13 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 5.39 AU - 6.81 AU

Year: 10590 Days

Day: 21.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 57,815,525 km

• M1: 57,146 km (0.074 R)
• M2: 256,860 km (0.075 R)
• M3: 433,983 km (0.065 R)
• M4: 637,137 km (0.115 R)
• M5: 1,072,916 km (0.107 R)
• M6: 1,239,269 km (0.064 R)
• M7: 1,492,688 km (0.099 R)
• M8: 2,049,790 km (0.111 R)
• M9: 2,671,070 km (0.102 R)
• M10: 2,866,445 km (0.069 R)
• M11: 7,652,978 km (0.092 R)
• M12: 11,203,235 km (0.106 R)
• M13: 11,655,170 km (0.108 R)
• M14: 12,534,806 km (0.079 R)
• M15: 12,898,927 km (0.078 R)
• M16: 13,207,547 km (0.061 R)
• M17: 14,163,178 km (0.066 R)
• M18: 14,758,129 km (0.059 R)
• M19: 15,301,020 km (0.086 R)
• M20: 17,455,080 km (0.099 R)
• M21: 18,840,206 km (0.051 R)
• M22: 19,237,538 km (0.101 R)
• M23: 20,379,868 km (0.108 R)
• M24: 20,714,368 km (0.118 R)
• M25: 22,709,406 km (0.064 R)
• M26: 27,379,402 km (0.119 R)
• M27: 29,991,381 km (0.081 R)
• M28: 40,108,386 km (0.055 R)
• M29: 40,370,481 km (0.08 R)
• M30: 41,563,824 km (0.057 R)
• M31: 42,780,653 km (0.119 R)
• M32: 43,191,448 km (0.075 R)
• M33: 45,284,921 km (0.053 R)
• M34: 47,885,231 km (0.114 R)
• M35: 48,328,041 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 638.4

Radius: 7

Gravity: 13.03 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 5.97 AU - 8.53 AU

Year: 13722 Days

Day: 15.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 57,815,525 km

• M1: 88,412 km (0.101 R)
• M2: 676,930 km (0.077 R)
• M3: 925,712 km (0.077 R)
• M4: 1,466,059 km (0.038 R)
• M5: 1,978,731 km (0.113 R)
• M6: 3,155,767 km (0.096 R)
• M7: 3,537,840 km (0.068 R)
• M8: 4,644,864 km (0.03 R)
• M9: 4,937,777 km (0.113 R)
• M10: 5,453,441 km (0.026 R)
• M11: 5,928,863 km (0.062 R)
• M12: 6,391,868 km (0.083 R)
• M13: 6,962,285 km (0.091 R)
• M14: 7,789,860 km (0.119 R)
• M15: 8,536,354 km (0.085 R)
• M16: 9,483,607 km (0.029 R)
• M17: 10,225,164 km (0.115 R)
• M18: 11,119,161 km (0.086 R)
• M19: 12,064,320 km (0.102 R)
• M20: 13,126,016 km (0.083 R)
• M21: 17,372,053 km (0.083 R)
• M22: 17,683,964 km (0.088 R)
• M23: 17,920,329 km (0.12 R)
• M24: 19,134,016 km (0.079 R)
• M25: 20,315,241 km (0.075 R)
• M26: 21,011,769 km (0.053 R)
• M27: 22,636,851 km (0.059 R)
• M28: 24,246,972 km (0.117 R)
• M29: 24,538,838 km (0.108 R)
• M30: 26,135,197 km (0.066 R)
• M31: 29,866,317 km (0.117 R)
• M32: 35,664,880 km (0.054 R)
• M33: 36,042,465 km (0.051 R)
• M34: 38,496,020 km (0.057 R)
• M35: 38,893,352 km (0.104 R)
• M36: 46,371,750 km (0.077 R)
• M37: 47,577,808 km (0.057 R)
• M38: 50,209,833 km (0.109 R)
• M39: 52,125,134 km (0.07 R)
• M40: 57,469,817 km (0.062 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 216 - 14,037 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit