🌌 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: 90.8

Radius: 13.7

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.52 AU - 0.68 AU

Year: 327 Days

Day: 12.3 Hours

Environment

Temp: -154 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 41,676,037 km

• M1: 170,542 km (0.089 R)
• M2: 599,139 km (0.116 R)
• M3: 1,124,976 km (0.09 R)
• M4: 1,564,495 km (0.062 R)
• M5: 2,000,273 km (0.064 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 114.8

Radius: 11.6

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.56 AU - 0.78 AU

Year: 385 Days

Day: 10.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 41,676,037 km

• M1: 156,479 km (0.099 R)
• M2: 584,030 km (0.037 R)
• M3: 1,095,804 km (0.073 R)
• M4: 1,815,969 km (0.086 R)
• M5: 2,431,713 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 476.7

Radius: 8.3

Gravity: 6.92 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.79 AU - 0.85 AU

Year: 522 Days

Day: 6 Hours

Environment

Temp: -157 °C

Axial Tilt: 113.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 41,676,037 km

• M1: 103,223 km (0.084 R)
• M2: 368,460 km (0.091 R)
• M3: 641,476 km (0.074 R)
• M4: 1,121,535 km (0.111 R)
• M5: 1,533,229 km (0.059 R)
• M6: 3,021,129 km (0.064 R)
• M7: 3,282,177 km (0.107 R)
• M8: 3,915,425 km (0.111 R)
• M9: 4,352,700 km (0.07 R)
• M10: 4,776,959 km (0.116 R)
• M11: 5,691,152 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.6

Radius: 14.6

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.45 AU - 2.19 AU

Year: 1726 Days

Day: 9.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 105.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 41,676,037 km

• M1: 181,761 km (0.059 R)
• M2: 700,716 km (0.116 R)
• M3: 1,267,842 km (0.116 R)
• M4: 1,943,576 km (0.117 R)
• M5: 2,533,739 km (0.082 R)
• M6: 3,104,754 km (0.105 R)
• M7: 4,780,400 km (0.083 R)
• M8: 5,236,673 km (0.107 R)
• M9: 6,062,753 km (0.047 R)
• M10: 7,923,152 km (0.063 R)
• M11: 8,510,922 km (0.083 R)
• M12: 9,242,904 km (0.058 R)
• M13: 10,170,411 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142.4

Radius: 11.6

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.96 AU - 3.76 AU

Year: 4329 Days

Day: 5.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 41,676,037 km

• M1: 144,212 km (0.097 R)
• M2: 682,017 km (0.106 R)
• M3: 1,621,641 km (0.055 R)
• M4: 2,596,720 km (0.078 R)
• M5: 3,033,695 km (0.086 R)
• M6: 5,860,048 km (0.054 R)
• M7: 8,328,712 km (0.102 R)
• M8: 9,656,094 km (0.09 R)
• M9: 10,352,621 km (0.116 R)
• M10: 10,713,302 km (0.099 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 670.7

Radius: 6.5

Gravity: 15.87 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 5.68 AU - 6.88 AU

Year: 11062 Days

Day: 19.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 41,676,037 km

• M1: 89,759 km (0.108 R)
• M2: 362,775 km (0.045 R)
• M3: 659,876 km (0.079 R)
• M4: 884,572 km (0.094 R)
• M5: 1,551,629 km (0.097 R)
• M6: 1,924,128 km (0.092 R)
• M7: 2,393,566 km (0.072 R)
• M8: 2,614,073 km (0.113 R)
• M9: 3,766,575 km (0.031 R)
• M10: 4,996,270 km (0.103 R)
• M11: 5,879,795 km (0.095 R)
• M12: 6,320,959 km (0.12 R)
• M13: 8,537,700 km (0.11 R)
• M14: 8,770,474 km (0.11 R)
• M15: 10,153,058 km (0.091 R)
• M16: 10,680,390 km (0.097 R)
• M17: 14,561,857 km (0.102 R)
• M18: 18,974,096 km (0.042 R)
• M19: 19,936,011 km (0.102 R)
• M20: 23,016,231 km (0.115 R)
• M21: 24,857,631 km (0.109 R)
• M22: 29,673,186 km (0.076 R)
• M23: 35,194,694 km (0.101 R)
• M24: 36,889,489 km (0.094 R)
• M25: 38,511,429 km (0.114 R)
• M26: 45,052,147 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 199.6

Radius: 4.5

Gravity: 9.86 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 6.51 AU - 8.89 AU

Year: 15019 Days

Day: 24.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 41,676,037 km

• M1: 56,997 km (0.052 R)
• M2: 435,928 km (0.049 R)
• M3: 762,500 km (0.097 R)
• M4: 1,332,169 km (0.112 R)
• M5: 1,886,728 km (0.074 R)
• M6: 2,861,957 km (0.042 R)
• M7: 3,553,249 km (0.079 R)
• M8: 3,698,957 km (0.078 R)
• M9: 4,133,539 km (0.073 R)
• M10: 4,349,558 km (0.118 R)
• M11: 4,687,649 km (0.106 R)
• M12: 5,012,725 km (0.069 R)
• M13: 5,908,069 km (0.058 R)
• M14: 7,018,384 km (0.106 R)
• M15: 7,287,062 km (0.101 R)
• M16: 9,879,443 km (0.037 R)
• M17: 10,217,086 km (0.065 R)
• M18: 12,461,951 km (0.091 R)
• M19: 13,142,622 km (0.112 R)
• M20: 14,454,296 km (0.044 R)
• M21: 16,785,031 km (0.076 R)
• M22: 19,806,908 km (0.082 R)
• M23: 20,811,009 km (0.119 R)
• M24: 23,256,784 km (0.09 R)
• M25: 24,112,783 km (0.036 R)
• M26: 25,346,218 km (0.094 R)
• M27: 29,994,223 km (0.081 R)
• M28: 35,627,331 km (0.116 R)
• M29: 39,710,007 km (0.114 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: 224 - 12,524 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit