🌌 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: 292.4

Radius: 12.8

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.56 AU - 0.92 AU

Year: 439 Days

Day: 10.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 36,806,554 km

• M1: 168,447 km (0.099 R)
• M2: 612,154 km (0.106 R)
• M3: 1,013,675 km (0.075 R)
• M4: 1,422,526 km (0.116 R)
• M5: 2,248,157 km (0.118 R)
• M6: 2,849,540 km (0.091 R)
• M7: 3,958,509 km (0.042 R)
• M8: 4,455,174 km (0.068 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 75.9

Radius: 9.2

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1 AU - 1.04 AU

Year: 711 Days

Day: 11.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,806,554 km

• M1: 114,442 km (0.09 R)
• M2: 487,839 km (0.086 R)
• M3: 840,142 km (0.093 R)
• M4: 1,364,033 km (0.045 R)
• M5: 1,675,646 km (0.043 R)
• M6: 2,380,551 km (0.109 R)
• M7: 2,702,635 km (0.083 R)
• M8: 3,034,593 km (0.11 R)
• M9: 3,488,024 km (0.056 R)
• M10: 3,792,605 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.4

Radius: 12.6

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.44 AU - 2.24 AU

Year: 1723 Days

Day: 13.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,806,554 km

• M1: 156,629 km (0.084 R)
• M2: 581,188 km (0.116 R)
• M3: 1,023,997 km (0.117 R)
• M4: 1,730,099 km (0.12 R)
• M5: 2,248,606 km (0.038 R)
• M6: 2,659,850 km (0.059 R)
• M7: 3,214,260 km (0.08 R)
• M8: 3,637,323 km (0.089 R)
• M9: 4,097,635 km (0.06 R)
• M10: 4,738,213 km (0.098 R)
• M11: 5,626,226 km (0.075 R)
• M12: 10,423,531 km (0.064 R)
• M13: 11,137,861 km (0.086 R)
• M14: 11,770,510 km (0.108 R)
• M15: 12,348,556 km (0.039 R)
• M16: 12,985,993 km (0.073 R)
• M17: 14,283,305 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 188.3

Radius: 11.7

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 2.35 AU - 3.75 AU

Year: 3677 Days

Day: 6.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,806,554 km

• M1: 146,606 km (0.08 R)
• M2: 582,085 km (0.09 R)
• M3: 1,042,996 km (0.097 R)
• M4: 1,812,229 km (0.093 R)
• M5: 2,361,253 km (0.119 R)
• M6: 3,638,071 km (0.098 R)
• M7: 4,052,307 km (0.114 R)
• M8: 4,640,376 km (0.104 R)
• M9: 7,325,209 km (0.103 R)
• M10: 8,506,584 km (0.118 R)
• M11: 9,142,823 km (0.033 R)
• M12: 9,776,670 km (0.045 R)
• M13: 10,403,784 km (0.095 R)
• M14: 10,800,069 km (0.045 R)
• M15: 11,319,173 km (0.065 R)
• M16: 12,010,914 km (0.091 R)
• M17: 15,108,936 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 773.8

Radius: 14.7

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 2.97 AU - 4.61 AU

Year: 5093 Days

Day: 10 Hours

Environment

Temp: -224 °C

Axial Tilt: 159.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 36,806,554 km

• M1: 184,305 km (0.082 R)
• M2: 739,163 km (0.109 R)
• M3: 1,659,639 km (0.062 R)
• M4: 2,148,525 km (0.116 R)
• M5: 2,717,146 km (0.078 R)
• M6: 3,427,437 km (0.087 R)
• M7: 4,381,722 km (0.095 R)
• M8: 5,084,532 km (0.11 R)
• M9: 5,861,693 km (0.096 R)
• M10: 8,403,062 km (0.112 R)
• M11: 9,200,718 km (0.074 R)
• M12: 9,703,067 km (0.098 R)
• M13: 11,753,007 km (0.094 R)
• M14: 12,245,334 km (0.067 R)
• M15: 14,917,152 km (0.078 R)
• M16: 16,633,787 km (0.113 R)
• M17: 19,078,516 km (0.026 R)
• M18: 20,246,277 km (0.088 R)
• M19: 25,235,216 km (0.079 R)
• M20: 30,896,448 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.3

Radius: 9.6

Gravity: 8.66 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 3.85 AU - 4.57 AU

Year: 5963 Days

Day: 7.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 36,806,554 km

• M1: 120,277 km (0.106 R)
• M2: 525,089 km (0.099 R)
• M3: 943,813 km (0.112 R)
• M4: 1,387,670 km (0.104 R)
• M5: 1,851,274 km (0.111 R)
• M6: 2,911,623 km (0.119 R)
• M7: 3,343,213 km (0.085 R)
• M8: 5,361,737 km (0.108 R)
• M9: 6,273,836 km (0.097 R)
• M10: 7,068,200 km (0.084 R)
• M11: 10,451,805 km (0.099 R)
• M12: 11,717,702 km (0.07 R)
• M13: 14,318,461 km (0.088 R)
• M14: 16,569,460 km (0.094 R)
• M15: 21,607,468 km (0.069 R)
• M16: 23,249,753 km (0.108 R)
• M17: 24,060,274 km (0.062 R)
• M18: 27,134,810 km (0.056 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.2

Radius: 11.8

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 4.01 AU - 4.53 AU

Year: 6091 Days

Day: 5.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,806,554 km

• M1: 146,756 km (0.075 R)
• M2: 742,604 km (0.083 R)
• M3: 1,482,365 km (0.088 R)
• M4: 1,850,974 km (0.098 R)
• M5: 2,605,995 km (0.115 R)
• M6: 3,133,627 km (0.118 R)
• M7: 4,494,818 km (0.109 R)
• M8: 5,083,784 km (0.116 R)
• M9: 6,132,914 km (0.085 R)
• M10: 8,274,109 km (0.115 R)
• M11: 12,157,520 km (0.092 R)
• M12: 15,231,457 km (0.096 R)
• M13: 16,343,717 km (0.078 R)
• M14: 17,795,116 km (0.088 R)
• M15: 18,789,343 km (0.056 R)
• M16: 20,952,678 km (0.085 R)
• M17: 22,596,310 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 88.7

Radius: 5.8

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 8.08 AU - 9.96 AU

Year: 18699 Days

Day: 23.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,806,554 km

• M1: 72,106 km (0.114 R)
• M2: 297,251 km (0.028 R)
• M3: 507,586 km (0.112 R)
• M4: 717,771 km (0.117 R)
• M5: 1,034,469 km (0.101 R)
• M6: 1,310,029 km (0.109 R)
• M7: 2,009,249 km (0.072 R)
• M8: 3,158,909 km (0.114 R)
• M9: 3,555,193 km (0.115 R)
• M10: 10,300,711 km (0.107 R)
• M11: 13,726,203 km (0.066 R)
• M12: 15,322,861 km (0.087 R)
• M13: 15,631,482 km (0.075 R)
• M14: 17,171,442 km (0.113 R)
• M15: 17,571,616 km (0.118 R)
• M16: 20,326,311 km (0.087 R)
• M17: 29,524,486 km (0.056 R)
• M18: 30,974,389 km (0.107 R)
• M19: 31,766,659 km (0.102 R)
• M20: 31,966,821 km (0.081 R)
• M21: 33,082,821 km (0.028 R)
• M22: 34,964,762 km (0.081 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: 362 - 16,610 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit