🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198.2

Radius: 9.1

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.8 AU - 0.9 AU

Year: 498 Days

Day: 12.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 74,638,504 km

• M1: 113,246 km (0.033 R)
• M2: 661,073 km (0.077 R)
• M3: 1,118,992 km (0.07 R)
• M4: 2,451,610 km (0.111 R)
• M5: 3,190,773 km (0.032 R)
• M6: 3,551,603 km (0.073 R)
• M7: 4,168,694 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.8

Radius: 8.1

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.21 AU - 1.99 AU

Year: 1287 Days

Day: 6.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 108.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 74,638,504 km

• M1: 100,829 km (0.084 R)
• M2: 430,243 km (0.115 R)
• M3: 869,313 km (0.069 R)
• M4: 1,152,801 km (0.038 R)
• M5: 1,451,847 km (0.115 R)
• M6: 1,749,248 km (0.087 R)
• M7: 2,127,731 km (0.074 R)
• M8: 2,413,313 km (0.048 R)
• M9: 2,972,360 km (0.047 R)
• M10: 3,442,696 km (0.117 R)
• M11: 3,778,094 km (0.037 R)
• M12: 4,497,810 km (0.074 R)
• M13: 5,458,976 km (0.099 R)
• M14: 5,714,489 km (0.08 R)
• M15: 6,102,097 km (0.12 R)
• M16: 6,507,358 km (0.032 R)
• M17: 7,684,244 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 157.9

Radius: 14.1

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.73 AU - 2.01 AU

Year: 1626 Days

Day: 8.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,638,504 km

• M1: 176,525 km (0.087 R)
• M2: 762,351 km (0.047 R)
• M3: 1,610,571 km (0.043 R)
• M4: 3,043,120 km (0.061 R)
• M5: 3,780,488 km (0.068 R)
• M6: 4,470,134 km (0.084 R)
• M7: 5,982,419 km (0.053 R)
• M8: 6,791,145 km (0.107 R)
• M9: 8,349,805 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 835.5

Radius: 8.9

Gravity: 10.55 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 2.45 AU - 2.95 AU

Year: 2821 Days

Day: 14.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 74,638,504 km

• M1: 115,938 km (0.081 R)
• M2: 429,047 km (0.11 R)
• M3: 949,498 km (0.108 R)
• M4: 1,451,249 km (0.117 R)
• M5: 3,228,172 km (0.108 R)
• M6: 5,085,430 km (0.103 R)
• M7: 5,775,675 km (0.119 R)
• M8: 7,757,846 km (0.032 R)
• M9: 8,742,350 km (0.051 R)
• M10: 11,416,562 km (0.117 R)
• M11: 12,019,142 km (0.097 R)
• M12: 12,916,430 km (0.113 R)
• M13: 17,066,275 km (0.096 R)
• M14: 18,724,417 km (0.12 R)
• M15: 19,320,266 km (0.112 R)
• M16: 21,248,283 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.4

Radius: 8

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.43 AU - 3.17 AU

Year: 2979 Days

Day: 7.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 74.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 74,638,504 km

• M1: 99,483 km (0.112 R)
• M2: 461,958 km (0.079 R)
• M3: 712,086 km (0.075 R)
• M4: 967,001 km (0.118 R)
• M5: 1,652,608 km (0.107 R)
• M6: 2,836,376 km (0.09 R)
• M7: 3,140,209 km (0.119 R)
• M8: 3,781,086 km (0.103 R)
• M9: 4,219,707 km (0.096 R)
• M10: 6,184,675 km (0.113 R)
• M11: 9,670,306 km (0.101 R)
• M12: 10,106,683 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 836.4

Radius: 13.6

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 4.04 AU - 4.66 AU

Year: 5769 Days

Day: 11.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 74,638,504 km

• M1: 169,195 km (0.098 R)
• M2: 708,047 km (0.099 R)
• M3: 1,370,915 km (0.1 R)
• M4: 1,831,377 km (0.075 R)
• M5: 2,551,242 km (0.117 R)
• M6: 2,978,344 km (0.109 R)
• M7: 3,630,740 km (0.106 R)
• M8: 4,665,658 km (0.097 R)
• M9: 5,519,264 km (0.109 R)
• M10: 7,206,578 km (0.099 R)
• M11: 10,098,006 km (0.046 R)
• M12: 10,843,602 km (0.062 R)
• M13: 11,476,101 km (0.111 R)
• M14: 13,192,887 km (0.064 R)
• M15: 14,141,337 km (0.049 R)
• M16: 18,056,762 km (0.084 R)
• M17: 20,299,085 km (0.105 R)
• M18: 21,036,303 km (0.052 R)
• M19: 22,175,640 km (0.093 R)
• M20: 22,642,835 km (0.046 R)
• M21: 25,077,689 km (0.094 R)
• M22: 26,619,744 km (0.044 R)
• M23: 29,516,109 km (0.094 R)
• M24: 31,234,390 km (0.109 R)
• M25: 34,245,197 km (0.108 R)
• M26: 35,184,970 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.6

Radius: 12.2

Gravity: 5.78 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 4.24 AU - 5.84 AU

Year: 7194 Days

Day: 11.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 74,638,504 km

• M1: 157,527 km (0.118 R)
• M2: 709,244 km (0.032 R)
• M3: 1,213,538 km (0.066 R)
• M4: 1,624,483 km (0.11 R)
• M5: 2,017,776 km (0.101 R)
• M6: 3,440,003 km (0.11 R)
• M7: 4,283,286 km (0.079 R)
• M8: 6,000,670 km (0.098 R)
• M9: 9,678,533 km (0.09 R)
• M10: 12,646,555 km (0.028 R)
• M11: 15,269,305 km (0.115 R)
• M12: 16,373,487 km (0.067 R)
• M13: 17,810,075 km (0.1 R)
• M14: 20,388,544 km (0.08 R)
• M15: 21,089,859 km (0.059 R)
• M16: 26,458,029 km (0.088 R)
• M17: 29,014,357 km (0.104 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 718.6

Radius: 4.1

Gravity: 42.75 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 8.01 AU - 11.23 AU

Year: 18971 Days

Day: 17.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 74,638,504 km

• M1: 51,611 km (0.114 R)
• M2: 203,752 km (0.03 R)
• M3: 345,122 km (0.079 R)
• M4: 629,957 km (0.105 R)
• M5: 834,457 km (0.082 R)
• M6: 1,147,864 km (0.077 R)
• M7: 2,005,060 km (0.044 R)
• M8: 4,407,752 km (0.088 R)
• M9: 5,498,470 km (0.104 R)
• M10: 6,623,745 km (0.116 R)
• M11: 7,030,651 km (0.118 R)
• M12: 7,894,130 km (0.098 R)
• M13: 8,403,361 km (0.069 R)
• M14: 9,207,599 km (0.085 R)
• M15: 10,298,467 km (0.096 R)
• M16: 12,125,057 km (0.034 R)
• M17: 12,733,172 km (0.082 R)
• M18: 14,379,198 km (0.086 R)
• M19: 14,528,796 km (0.051 R)
• M20: 14,830,834 km (0.069 R)
• M21: 15,214,403 km (0.099 R)
• M22: 18,612,668 km (0.088 R)
• M23: 19,239,333 km (0.117 R)
• M24: 22,888,325 km (0.077 R)
• M25: 24,553,648 km (0.105 R)
• M26: 27,774,789 km (0.095 R)
• M27: 28,829,006 km (0.073 R)
• M28: 30,644,675 km (0.1 R)
• M29: 32,151,126 km (0.089 R)
• M30: 32,535,293 km (0.089 R)
• M31: 37,387,051 km (0.065 R)
• M32: 37,528,271 km (0.102 R)
• M33: 42,545,186 km (0.107 R)
• M34: 44,259,278 km (0.107 R)
• M35: 54,063,623 km (0.106 R)
• M36: 55,520,108 km (0.107 R)
• M37: 58,131,339 km (0.105 R)
• M38: 70,252,207 km (0.079 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: 360 - 15,442 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit