🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549.7

Radius: 8.7

Gravity: 7.26 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.89 AU - 1.09 AU

Year: 626 Days

Day: 9.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 79,400,547 km

• M1: 108,159 km (0.082 R)
• M2: 420,220 km (0.064 R)
• M3: 863,629 km (0.098 R)
• M4: 1,362,388 km (0.049 R)
• M5: 1,740,721 km (0.102 R)
• M6: 2,096,764 km (0.086 R)
• M7: 2,460,287 km (0.054 R)
• M8: 3,229,070 km (0.118 R)
• M9: 3,583,467 km (0.064 R)
• M10: 4,222,400 km (0.046 R)
• M11: 5,441,623 km (0.091 R)
• M12: 6,401,293 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914.6

Radius: 12.5

Gravity: 5.85 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.98 AU - 1.04 AU

Year: 645 Days

Day: 11.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 79,400,547 km

• M1: 155,432 km (0.061 R)
• M2: 693,087 km (0.119 R)
• M3: 1,235,529 km (0.109 R)
• M4: 1,683,126 km (0.04 R)
• M5: 2,674,062 km (0.093 R)
• M6: 3,306,263 km (0.076 R)
• M7: 3,729,176 km (0.109 R)
• M8: 4,297,199 km (0.05 R)
• M9: 5,026,488 km (0.074 R)
• M10: 6,253,341 km (0.066 R)
• M11: 6,904,540 km (0.113 R)
• M12: 7,930,183 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 584.6

Radius: 11.8

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.3 AU - 1.64 AU

Year: 1133 Days

Day: 9 Hours

Environment

Temp: -187 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 79,400,547 km

• M1: 146,756 km (0.098 R)
• M2: 608,564 km (0.11 R)
• M3: 1,367,025 km (0.108 R)
• M4: 1,818,661 km (0.101 R)
• M5: 2,216,741 km (0.103 R)
• M6: 2,835,328 km (0.117 R)
• M7: 3,462,892 km (0.08 R)
• M8: 4,436,325 km (0.094 R)
• M9: 4,810,918 km (0.071 R)
• M10: 5,768,494 km (0.08 R)
• M11: 6,392,616 km (0.058 R)
• M12: 6,942,688 km (0.055 R)
• M13: 7,878,273 km (0.076 R)
• M14: 10,397,052 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161.6

Radius: 12.2

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.8 AU - 1.9 AU

Year: 1600 Days

Day: 7.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 79,400,547 km

• M1: 174,282 km (0.062 R)
• M2: 704,756 km (0.075 R)
• M3: 1,223,860 km (0.05 R)
• M4: 1,649,915 km (0.102 R)
• M5: 2,137,006 km (0.085 R)
• M6: 2,969,368 km (0.111 R)
• M7: 4,021,789 km (0.09 R)
• M8: 5,253,428 km (0.106 R)
• M9: 5,799,610 km (0.056 R)
• M10: 7,505,325 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244.2

Radius: 8.9

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.8 AU - 2.96 AU

Year: 2335 Days

Day: 7.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 79,400,547 km

• M1: 117,434 km (0.104 R)
• M2: 442,062 km (0.113 R)
• M3: 817,253 km (0.04 R)
• M4: 2,001,919 km (0.119 R)
• M5: 2,603,302 km (0.104 R)
• M6: 4,092,250 km (0.11 R)
• M7: 4,780,400 km (0.103 R)
• M8: 5,080,493 km (0.08 R)
• M9: 7,077,475 km (0.084 R)
• M10: 8,523,189 km (0.111 R)
• M11: 8,995,918 km (0.104 R)
• M12: 10,519,722 km (0.115 R)
• M13: 11,413,420 km (0.118 R)
• M14: 12,024,677 km (0.059 R)
• M15: 12,809,467 km (0.096 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 565.6

Radius: 5.3

Gravity: 20.14 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 6.48 AU - 7.54 AU

Year: 11801 Days

Day: 20.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 79,400,547 km

• M1: 66,122 km (0.069 R)
• M2: 283,039 km (0.046 R)
• M3: 550,520 km (0.078 R)
• M4: 1,042,099 km (0.069 R)
• M5: 1,379,741 km (0.052 R)
• M6: 2,366,938 km (0.1 R)
• M7: 3,063,764 km (0.088 R)
• M8: 3,702,398 km (0.116 R)
• M9: 4,852,506 km (0.079 R)
• M10: 5,577,607 km (0.108 R)
• M11: 6,524,711 km (0.08 R)
• M12: 7,036,485 km (0.107 R)
• M13: 10,898,504 km (0.11 R)
• M14: 12,967,592 km (0.108 R)
• M15: 13,336,201 km (0.084 R)
• M16: 14,030,036 km (0.104 R)
• M17: 17,415,436 km (0.058 R)
• M18: 19,415,410 km (0.067 R)
• M19: 23,319,914 km (0.071 R)
• M20: 24,233,060 km (0.114 R)
• M21: 24,792,107 km (0.078 R)
• M22: 27,114,764 km (0.064 R)
• M23: 28,534,597 km (0.078 R)
• M24: 32,299,527 km (0.037 R)
• M25: 32,976,457 km (0.058 R)
• M26: 36,747,670 km (0.079 R)
• M27: 39,500,869 km (0.094 R)
• M28: 40,145,187 km (0.074 R)
• M29: 40,927,584 km (0.055 R)
• M30: 41,322,672 km (0.114 R)
• M31: 41,853,295 km (0.108 R)
• M32: 42,254,218 km (0.05 R)
• M33: 48,579,665 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 779.5

Radius: 7.6

Gravity: 13.5 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 9.62 AU - 10.3 AU

Year: 19986 Days

Day: 22.8 Hours

Environment

Temp: -238 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 79,400,547 km

• M1: 103,223 km (0.031 R)
• M2: 596,596 km (0.11 R)
• M3: 1,260,811 km (0.063 R)
• M4: 1,854,116 km (0.12 R)
• M5: 2,867,492 km (0.117 R)
• M6: 3,436,861 km (0.119 R)
• M7: 3,733,364 km (0.082 R)
• M8: 4,515,313 km (0.105 R)
• M9: 5,721,969 km (0.118 R)
• M10: 6,850,086 km (0.117 R)
• M11: 8,119,873 km (0.081 R)
• M12: 8,975,274 km (0.055 R)
• M13: 11,117,366 km (0.082 R)
• M14: 11,504,824 km (0.114 R)
• M15: 11,768,266 km (0.092 R)
• M16: 13,289,078 km (0.074 R)
• M17: 13,578,999 km (0.091 R)
• M18: 15,648,236 km (0.104 R)
• M19: 17,139,129 km (0.066 R)
• M20: 22,075,559 km (0.053 R)
• M21: 25,584,976 km (0.055 R)
• M22: 27,180,138 km (0.119 R)
• M23: 34,633,852 km (0.098 R)
• M24: 41,157,665 km (0.108 R)
• M25: 43,184,567 km (0.1 R)
• M26: 63,679,326 km (0.09 R)
• M27: 65,964,882 km (0.062 R)
• M28: 75,194,622 km (0.044 R)
• M29: 76,116,145 km (0.105 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: 355 - 17,089 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit