🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 583.1

Radius: 12.9

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.49 AU - 0.71 AU

Year: 310 Days

Day: 8.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,578,280 km

• M1: 160,519 km (0.1 R)
• M2: 650,452 km (0.082 R)
• M3: 1,061,696 km (0.094 R)
• M4: 1,543,401 km (0.109 R)
• M5: 1,947,465 km (0.11 R)
• M6: 2,398,203 km (0.104 R)
• M7: 3,580,924 km (0.112 R)
• M8: 4,240,501 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 848.5

Radius: 9.9

Gravity: 8.66 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.61 AU - 0.99 AU

Year: 477 Days

Day: 14.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,578,280 km

• M1: 123,119 km (0.093 R)
• M2: 435,928 km (0.092 R)
• M3: 766,091 km (0.086 R)
• M4: 1,135,597 km (0.091 R)
• M5: 1,588,281 km (0.113 R)
• M6: 1,966,015 km (0.07 R)
• M7: 2,364,843 km (0.115 R)
• M8: 3,314,939 km (0.069 R)
• M9: 3,643,606 km (0.086 R)
• M10: 4,134,885 km (0.118 R)
• M11: 5,035,165 km (0.083 R)
• M12: 6,191,557 km (0.061 R)
• M13: 6,692,710 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 168.2

Radius: 9.8

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.87 AU - 1.07 AU

Year: 637 Days

Day: 10.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,578,280 km

• M1: 122,072 km (0.053 R)
• M2: 587,920 km (0.096 R)
• M3: 1,283,101 km (0.07 R)
• M4: 1,878,052 km (0.062 R)
• M5: 2,252,046 km (0.067 R)
• M6: 2,927,032 km (0.101 R)
• M7: 3,960,304 km (0.056 R)
• M8: 4,393,540 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845.4

Radius: 9.1

Gravity: 10.21 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.98 AU - 1.2 AU

Year: 759 Days

Day: 9.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,578,280 km

• M1: 113,545 km (0.119 R)
• M2: 403,166 km (0.096 R)
• M3: 717,920 km (0.062 R)
• M4: 1,119,890 km (0.108 R)
• M5: 1,652,608 km (0.089 R)
• M6: 2,118,904 km (0.111 R)
• M7: 2,706,375 km (0.119 R)
• M8: 3,398,714 km (0.103 R)
• M9: 3,698,059 km (0.096 R)
• M10: 4,449,489 km (0.085 R)
• M11: 5,168,906 km (0.119 R)
• M12: 6,045,549 km (0.087 R)
• M13: 6,860,259 km (0.041 R)
• M14: 7,317,580 km (0.119 R)
• M15: 8,654,386 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 777.4

Radius: 9.6

Gravity: 8.44 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.15 AU - 1.31 AU

Year: 910 Days

Day: 5.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,578,280 km

• M1: 119,379 km (0.12 R)
• M2: 419,921 km (0.099 R)
• M3: 739,911 km (0.041 R)
• M4: 1,048,382 km (0.069 R)
• M5: 1,376,151 km (0.118 R)
• M6: 2,570,989 km (0.107 R)
• M7: 3,459,750 km (0.108 R)
• M8: 4,006,979 km (0.051 R)
• M9: 4,386,210 km (0.088 R)
• M10: 6,021,464 km (0.053 R)
• M11: 6,564,953 km (0.102 R)
• M12: 7,283,920 km (0.082 R)
• M13: 8,499,553 km (0.047 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444.3

Radius: 11

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.08 AU - 1.56 AU

Year: 1011 Days

Day: 6.4 Hours

Environment

Temp: -196 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,578,280 km

• M1: 136,882 km (0.083 R)
• M2: 501,003 km (0.067 R)
• M3: 1,313,320 km (0.091 R)
• M4: 1,903,483 km (0.077 R)
• M5: 2,386,535 km (0.109 R)
• M6: 2,816,479 km (0.093 R)
• M7: 3,205,284 km (0.057 R)
• M8: 3,999,649 km (0.076 R)
• M9: 5,450,449 km (0.057 R)
• M10: 6,078,760 km (0.067 R)
• M11: 6,495,689 km (0.075 R)
• M12: 7,066,106 km (0.094 R)
• M13: 8,132,140 km (0.068 R)
• M14: 8,717,068 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 171

Radius: 13.5

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 4.21 AU - 4.87 AU

Year: 6451 Days

Day: 14.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,578,280 km

• M1: 167,998 km (0.111 R)
• M2: 986,299 km (0.073 R)
• M3: 1,921,285 km (0.083 R)
• M4: 2,735,098 km (0.096 R)
• M5: 5,628,021 km (0.111 R)
• M6: 8,832,408 km (0.092 R)
• M7: 13,613,855 km (0.113 R)
• M8: 16,580,680 km (0.066 R)
• M9: 19,161,692 km (0.12 R)
• M10: 19,647,137 km (0.115 R)
• M11: 20,140,810 km (0.107 R)
• M12: 21,476,121 km (0.093 R)
• M13: 22,265,249 km (0.088 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 320.8

Radius: 6.4

Gravity: 7.83 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 5.66 AU - 8.88 AU

Year: 13072 Days

Day: 19.6 Hours

Environment

Temp: -238 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 57,578,280 km

• M1: 79,586 km (0.045 R)
• M2: 398,978 km (0.11 R)
• M3: 878,439 km (0.05 R)
• M4: 2,403,439 km (0.06 R)
• M5: 2,880,058 km (0.105 R)
• M6: 3,208,874 km (0.096 R)
• M7: 4,208,936 km (0.083 R)
• M8: 5,023,048 km (0.063 R)
• M9: 5,467,353 km (0.05 R)
• M10: 5,699,080 km (0.069 R)
• M11: 6,006,803 km (0.106 R)
• M12: 6,398,002 km (0.108 R)
• M13: 7,964,591 km (0.119 R)
• M14: 8,393,039 km (0.077 R)
• M15: 9,578,901 km (0.051 R)
• M16: 11,615,527 km (0.07 R)
• M17: 11,944,044 km (0.108 R)
• M18: 12,677,223 km (0.118 R)
• M19: 13,680,576 km (0.114 R)
• M20: 15,250,905 km (0.105 R)
• M21: 15,578,823 km (0.116 R)
• M22: 16,113,187 km (0.112 R)
• M23: 16,728,931 km (0.086 R)
• M24: 18,080,249 km (0.091 R)
• M25: 19,733,904 km (0.115 R)
• M26: 21,159,871 km (0.092 R)
• M27: 23,774,393 km (0.095 R)
• M28: 24,393,279 km (0.101 R)
• M29: 25,387,357 km (0.097 R)
• M30: 29,230,377 km (0.096 R)
• M31: 35,123,037 km (0.12 R)
• M32: 37,686,247 km (0.072 R)
• M33: 39,874,116 km (0.116 R)
• M34: 40,122,299 km (0.111 R)
• M35: 42,661,274 km (0.092 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 267.8

Radius: 5.6

Gravity: 8.54 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 9.11 AU - 10.87 AU

Year: 21056 Days

Day: 24.1 Hours

Environment

Temp: -245 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,578,280 km

• M1: 76,445 km (0.102 R)
• M2: 572,361 km (0.052 R)
• M3: 1,189,004 km (0.104 R)
• M4: 2,231,701 km (0.083 R)
• M5: 3,480,993 km (0.082 R)
• M6: 9,175,585 km (0.051 R)
• M7: 9,430,351 km (0.108 R)
• M8: 12,741,550 km (0.114 R)
• M9: 19,710,716 km (0.086 R)
• M10: 25,715,276 km (0.104 R)
• M11: 33,670,591 km (0.07 R)
• M12: 34,399,282 km (0.107 R)
• M13: 36,266,862 km (0.061 R)
• M14: 41,160,508 km (0.031 R)
• M15: 44,997,095 km (0.036 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: 354 - 12,452 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit