🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.7

Radius: 9.8

Gravity: 7.76 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.66 AU - 0.82 AU

Year: 405 Days

Day: 5.8 Hours

Environment

Temp: -148 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,464,986 km

• M1: 133,740 km (0.113 R)
• M2: 439,070 km (0.118 R)
• M3: 791,373 km (0.078 R)
• M4: 1,181,374 km (0.079 R)
• M5: 1,531,284 km (0.115 R)
• M6: 2,040,515 km (0.07 R)
• M7: 3,146,193 km (0.077 R)
• M8: 3,604,411 km (0.079 R)
• M9: 4,026,576 km (0.116 R)
• M10: 4,818,547 km (0.097 R)
• M11: 5,347,974 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 224.1

Radius: 13.6

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.81 AU - 0.99 AU

Year: 543 Days

Day: 7.6 Hours

Environment

Temp: -146 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,464,986 km

• M1: 176,376 km (0.115 R)
• M2: 750,233 km (0.108 R)
• M3: 1,688,810 km (0.105 R)
• M4: 2,302,910 km (0.089 R)
• M5: 2,733,153 km (0.078 R)
• M6: 3,724,688 km (0.111 R)
• M7: 4,707,995 km (0.053 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 361.6

Radius: 14.4

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.78 AU - 1.1 AU

Year: 579 Days

Day: 5.5 Hours

Environment

Temp: -165 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,464,986 km

• M1: 181,313 km (0.036 R)
• M2: 942,467 km (0.06 R)
• M3: 1,411,755 km (0.098 R)
• M4: 1,900,342 km (0.079 R)
• M5: 2,384,141 km (0.113 R)
• M6: 3,155,767 km (0.096 R)
• M7: 4,010,270 km (0.073 R)
• M8: 4,774,416 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 743.3

Radius: 8.6

Gravity: 10.05 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 4.06 AU - 5.18 AU

Year: 6314 Days

Day: 5.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,464,986 km

• M1: 106,962 km (0.108 R)
• M2: 404,812 km (0.087 R)
• M3: 678,576 km (0.087 R)
• M4: 1,044,343 km (0.085 R)
• M5: 1,324,988 km (0.113 R)
• M6: 1,850,077 km (0.077 R)
• M7: 2,185,625 km (0.107 R)
• M8: 2,842,659 km (0.12 R)
• M9: 4,679,421 km (0.111 R)
• M10: 5,218,423 km (0.065 R)
• M11: 6,087,736 km (0.109 R)
• M12: 6,978,292 km (0.092 R)
• M13: 8,473,523 km (0.103 R)
• M14: 12,557,694 km (0.11 R)
• M15: 14,052,476 km (0.1 R)
• M16: 17,193,433 km (0.079 R)
• M17: 17,524,493 km (0.082 R)
• M18: 17,927,510 km (0.118 R)
• M19: 18,961,979 km (0.064 R)
• M20: 19,962,938 km (0.096 R)
• M21: 20,998,604 km (0.062 R)
• M22: 22,936,645 km (0.041 R)
• M23: 28,252,007 km (0.074 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 305

Radius: 7.6

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 5.26 AU - 8.72 AU

Year: 11750 Days

Day: 16.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 66,464,986 km

• M1: 102,923 km (0.077 R)
• M2: 745,297 km (0.032 R)
• M3: 1,170,603 km (0.111 R)
• M4: 1,852,919 km (0.07 R)
• M5: 2,959,046 km (0.118 R)
• M6: 3,799,936 km (0.09 R)
• M7: 4,316,198 km (0.112 R)
• M8: 4,849,215 km (0.074 R)
• M9: 5,393,751 km (0.112 R)
• M10: 6,045,998 km (0.1 R)
• M11: 6,356,114 km (0.045 R)
• M12: 7,121,307 km (0.103 R)
• M13: 8,790,072 km (0.105 R)
• M14: 10,854,223 km (0.116 R)
• M15: 11,313,040 km (0.071 R)
• M16: 12,106,507 km (0.115 R)
• M17: 13,686,111 km (0.084 R)
• M18: 14,833,377 km (0.108 R)
• M19: 16,306,168 km (0.106 R)
• M20: 18,442,126 km (0.105 R)
• M21: 19,169,172 km (0.056 R)
• M22: 19,539,875 km (0.096 R)
• M23: 19,839,670 km (0.114 R)
• M24: 20,835,692 km (0.113 R)
• M25: 21,784,442 km (0.113 R)
• M26: 22,106,975 km (0.084 R)
• M27: 23,177,198 km (0.07 R)
• M28: 25,243,145 km (0.103 R)
• M29: 26,411,953 km (0.117 R)
• M30: 27,994,250 km (0.103 R)
• M31: 29,148,547 km (0.087 R)
• M32: 30,837,806 km (0.066 R)
• M33: 31,449,212 km (0.094 R)
• M34: 31,964,876 km (0.077 R)
• M35: 33,332,051 km (0.073 R)
• M36: 34,518,961 km (0.059 R)
• M37: 36,748,867 km (0.083 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 26.5

Radius: 6.2

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 5.87 AU - 9.15 AU

Year: 13086 Days

Day: 21.6 Hours

Environment

Temp: -234 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 66,464,986 km

• M1: 81,680 km (0.03 R)
• M2: 619,784 km (0.109 R)
• M3: 1,389,166 km (0.079 R)
• M4: 1,733,839 km (0.112 R)
• M5: 3,152,775 km (0.069 R)
• M6: 3,885,356 km (0.098 R)
• M7: 4,187,394 km (0.104 R)
• M8: 5,505,501 km (0.105 R)
• M9: 6,450,660 km (0.048 R)
• M10: 7,049,650 km (0.077 R)
• M11: 7,873,336 km (0.079 R)
• M12: 12,885,613 km (0.103 R)
• M13: 16,902,315 km (0.06 R)
• M14: 17,653,147 km (0.056 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 475.6

Radius: 7.9

Gravity: 7.62 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 7.58 AU - 12.08 AU

Year: 19596 Days

Day: 19 Hours

Environment

Temp: -233 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 66,464,986 km

• M1: 99,034 km (0.11 R)
• M2: 874,549 km (0.094 R)
• M3: 1,586,635 km (0.051 R)
• M4: 2,018,524 km (0.099 R)
• M5: 2,334,624 km (0.106 R)
• M6: 5,790,335 km (0.052 R)
• M7: 6,516,034 km (0.058 R)
• M8: 6,857,566 km (0.116 R)
• M9: 9,216,276 km (0.066 R)
• M10: 11,382,752 km (0.045 R)
• M11: 11,878,669 km (0.099 R)
• M12: 14,219,577 km (0.046 R)
• M13: 17,011,223 km (0.088 R)
• M14: 17,659,430 km (0.113 R)
• M15: 18,156,544 km (0.111 R)
• M16: 20,418,613 km (0.052 R)
• M17: 24,561,128 km (0.042 R)
• M18: 25,599,038 km (0.114 R)
• M19: 26,450,250 km (0.03 R)
• M20: 27,873,374 km (0.068 R)
• M21: 39,434,148 km (0.032 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 200 - 16,781 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit