🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 591.5

Radius: 12.9

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.77 AU - 0.83 AU

Year: 462 Days

Day: 5.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 89.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 31,224,162 km

• M1: 160,519 km (0.065 R)
• M2: 624,571 km (0.105 R)
• M3: 1,148,313 km (0.114 R)
• M4: 1,583,045 km (0.102 R)
• M5: 2,030,193 km (0.103 R)
• M6: 2,610,932 km (0.098 R)
• M7: 3,021,877 km (0.082 R)
• M8: 3,911,835 km (0.098 R)
• M9: 4,454,127 km (0.089 R)
• M10: 5,077,202 km (0.076 R)
• M11: 5,524,350 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.3

Radius: 12.3

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.77 AU - 0.97 AU

Year: 524 Days

Day: 7.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 31,224,162 km

• M1: 153,039 km (0.095 R)
• M2: 606,171 km (0.066 R)
• M3: 1,497,175 km (0.077 R)
• M4: 2,046,798 km (0.081 R)
• M5: 2,763,222 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172.5

Radius: 9.3

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.76 AU - 1.08 AU

Year: 570 Days

Day: 11.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 31,224,162 km

• M1: 115,789 km (0.093 R)
• M2: 477,516 km (0.026 R)
• M3: 985,252 km (0.04 R)
• M4: 1,303,745 km (0.104 R)
• M5: 1,745,358 km (0.118 R)
• M6: 2,070,435 km (0.119 R)
• M7: 2,694,258 km (0.082 R)
• M8: 3,605,009 km (0.102 R)
• M9: 4,212,526 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 102.5

Radius: 8.7

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.4 AU - 2.18 AU

Year: 1546 Days

Day: 8.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 31,224,162 km

• M1: 108,159 km (0.114 R)
• M2: 480,060 km (0.089 R)
• M3: 775,216 km (0.095 R)
• M4: 1,445,863 km (0.111 R)
• M5: 1,966,314 km (0.037 R)
• M6: 3,278,886 km (0.114 R)
• M7: 3,820,281 km (0.065 R)
• M8: 4,606,866 km (0.119 R)
• M9: 5,234,579 km (0.075 R)
• M10: 6,320,660 km (0.036 R)
• M11: 6,761,824 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 915.7

Radius: 15

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.68 AU - 2.42 AU

Year: 1895 Days

Day: 5.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 125.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 31,224,162 km

• M1: 186,549 km (0.107 R)
• M2: 695,032 km (0.075 R)
• M3: 1,177,784 km (0.102 R)
• M4: 1,831,527 km (0.075 R)
• M5: 2,419,446 km (0.082 R)
• M6: 3,514,652 km (0.069 R)
• M7: 4,313,954 km (0.084 R)
• M8: 5,141,529 km (0.063 R)
• M9: 6,225,665 km (0.063 R)
• M10: 6,781,571 km (0.097 R)
• M11: 7,545,118 km (0.103 R)
• M12: 8,240,300 km (0.107 R)
• M13: 9,143,871 km (0.092 R)
• M14: 10,112,666 km (0.074 R)
• M15: 10,733,647 km (0.08 R)
• M16: 15,339,766 km (0.052 R)
• M17: 15,867,846 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 757

Radius: 9

Gravity: 9.35 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 3.76 AU - 5.62 AU

Year: 6558 Days

Day: 6.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 31,224,162 km

• M1: 114,891 km (0.112 R)
• M2: 433,235 km (0.11 R)
• M3: 759,957 km (0.08 R)
• M4: 1,300,005 km (0.088 R)
• M5: 1,710,951 km (0.079 R)
• M6: 2,126,235 km (0.096 R)
• M7: 2,427,973 km (0.101 R)
• M8: 2,777,584 km (0.1 R)
• M9: 3,354,283 km (0.091 R)
• M10: 3,765,827 km (0.054 R)
• M11: 4,690,342 km (0.104 R)
• M12: 5,632,958 km (0.113 R)
• M13: 6,350,729 km (0.031 R)
• M14: 8,535,606 km (0.08 R)
• M15: 9,706,359 km (0.118 R)
• M16: 10,496,535 km (0.09 R)
• M17: 11,581,867 km (0.116 R)
• M18: 12,794,807 km (0.105 R)
• M19: 13,630,161 km (0.083 R)
• M20: 18,015,324 km (0.067 R)
• M21: 18,992,946 km (0.049 R)
• M22: 19,639,807 km (0.088 R)
• M23: 21,129,802 km (0.094 R)
• M24: 22,454,491 km (0.067 R)
• M25: 23,504,219 km (0.09 R)
• M26: 31,386,082 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 939.1

Radius: 14.1

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 3.93 AU - 5.77 AU

Year: 6896 Days

Day: 6 Hours

Environment

Temp: -225 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 31,224,162 km

• M1: 180,565 km (0.068 R)
• M2: 672,442 km (0.068 R)
• M3: 1,113,457 km (0.077 R)
• M4: 2,706,824 km (0.104 R)
• M5: 3,847,208 km (0.108 R)
• M6: 4,695,728 km (0.104 R)
• M7: 5,225,902 km (0.077 R)
• M8: 6,692,710 km (0.089 R)
• M9: 7,327,753 km (0.108 R)
• M10: 9,386,369 km (0.066 R)
• M11: 10,524,659 km (0.054 R)
• M12: 11,647,241 km (0.115 R)
• M13: 18,416,096 km (0.03 R)
• M14: 21,686,156 km (0.12 R)
• M15: 23,926,983 km (0.036 R)
• M16: 26,226,751 km (0.025 R)
• M17: 27,524,512 km (0.109 R)
• M18: 31,986,269 km (0.117 R)
• M19: 33,682,559 km (0.038 R)
• M20: 35,326,490 km (0.064 R)
• M21: 35,773,788 km (0.063 R)
• M22: 37,023,379 km (0.073 R)
• M23: 38,892,754 km (0.11 R)
• M24: 40,335,475 km (0.043 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 80.3

Radius: 3.4

Gravity: 6.95 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 6.24 AU - 10.3 AU

Year: 15356 Days

Day: 19.3 Hours

Environment

Temp: -236 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 31,224,162 km

• M1: 42,486 km (0.089 R)
• M2: 156,180 km (0.113 R)
• M3: 284,386 km (0.095 R)
• M4: 998,416 km (0.115 R)
• M5: 1,214,585 km (0.088 R)
• M6: 1,583,643 km (0.111 R)
• M7: 2,319,665 km (0.103 R)
• M8: 3,258,990 km (0.045 R)
• M9: 3,710,775 km (0.082 R)
• M10: 3,939,959 km (0.085 R)
• M11: 4,606,118 km (0.102 R)
• M12: 4,817,201 km (0.107 R)
• M13: 4,952,288 km (0.094 R)
• M14: 5,459,873 km (0.106 R)
• M15: 5,786,595 km (0.046 R)
• M16: 8,844,974 km (0.117 R)
• M17: 9,295,264 km (0.108 R)
• M18: 10,375,211 km (0.065 R)
• M19: 10,783,613 km (0.103 R)
• M20: 11,202,637 km (0.096 R)
• M21: 13,408,756 km (0.045 R)
• M22: 14,613,169 km (0.082 R)
• M23: 14,726,115 km (0.057 R)
• M24: 17,936,186 km (0.119 R)
• M25: 19,737,644 km (0.095 R)
• M26: 22,547,241 km (0.108 R)
• M27: 26,190,249 km (0.078 R)
• M28: 27,201,231 km (0.097 R)
• M29: 28,413,273 km (0.073 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 360 - 19,344 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit