🌌 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: 369.4

Radius: 14.2

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.98 AU - 1 AU

Year: 626 Days

Day: 13.4 Hours

Environment

Temp: -151 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 33,251,240 km

• M1: 176,675 km (0.107 R)
• M2: 619,335 km (0.086 R)
• M3: 1,254,528 km (0.106 R)
• M4: 1,848,431 km (0.04 R)
• M5: 2,608,239 km (0.093 R)
• M6: 3,364,456 km (0.05 R)
• M7: 4,937,478 km (0.075 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 977.3

Radius: 13.5

Gravity: 5.36 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.91 AU - 1.29 AU

Year: 734 Days

Day: 9.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,251,240 km

• M1: 167,849 km (0.111 R)
• M2: 601,234 km (0.102 R)
• M3: 1,150,707 km (0.034 R)
• M4: 1,738,626 km (0.112 R)
• M5: 2,174,106 km (0.109 R)
• M6: 2,602,704 km (0.109 R)
• M7: 3,114,179 km (0.027 R)
• M8: 3,634,480 km (0.103 R)
• M9: 4,180,961 km (0.045 R)
• M10: 4,941,068 km (0.119 R)
• M11: 5,831,624 km (0.108 R)
• M12: 7,447,431 km (0.061 R)
• M13: 8,006,029 km (0.097 R)
• M14: 9,043,939 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 224.1

Radius: 14.6

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.5 AU - 1.52 AU

Year: 1180 Days

Day: 7.5 Hours

Environment

Temp: -171 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 33,251,240 km

• M1: 181,612 km (0.045 R)
• M2: 660,026 km (0.05 R)
• M3: 1,123,181 km (0.107 R)
• M4: 1,792,182 km (0.084 R)
• M5: 2,516,535 km (0.078 R)
• M6: 3,043,120 km (0.093 R)
• M7: 3,602,915 km (0.107 R)
• M8: 4,799,249 km (0.09 R)
• M9: 5,599,299 km (0.043 R)
• M10: 6,385,735 km (0.087 R)
• M11: 7,737,052 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 122.1

Radius: 11.1

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.27 AU - 1.87 AU

Year: 1251 Days

Day: 14.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,251,240 km

• M1: 138,079 km (0.098 R)
• M2: 554,709 km (0.107 R)
• M3: 915,539 km (0.103 R)
• M4: 1,420,881 km (0.032 R)
• M5: 2,134,612 km (0.036 R)
• M6: 2,604,798 km (0.074 R)
• M7: 3,298,483 km (0.076 R)
• M8: 3,930,534 km (0.071 R)
• M9: 4,370,951 km (0.098 R)
• M10: 5,069,124 km (0.096 R)
• M11: 5,679,932 km (0.062 R)
• M12: 6,225,815 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886

Radius: 11.5

Gravity: 6.7 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.4 AU - 2.9 AU

Year: 2743 Days

Day: 11 Hours

Environment

Temp: -196 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 33,251,240 km

• M1: 143,016 km (0.092 R)
• M2: 550,670 km (0.097 R)
• M3: 1,243,607 km (0.072 R)
• M4: 1,685,968 km (0.103 R)
• M5: 2,580,563 km (0.071 R)
• M6: 3,367,298 km (0.067 R)
• M7: 5,594,063 km (0.049 R)
• M8: 6,270,096 km (0.074 R)
• M9: 7,401,355 km (0.051 R)
• M10: 7,785,672 km (0.1 R)
• M11: 8,386,905 km (0.095 R)
• M12: 8,804,882 km (0.035 R)
• M13: 9,987,902 km (0.098 R)
• M14: 10,577,617 km (0.083 R)
• M15: 10,942,486 km (0.039 R)
• M16: 13,405,764 km (0.107 R)
• M17: 14,123,834 km (0.119 R)
• M18: 14,517,127 km (0.112 R)
• M19: 15,480,836 km (0.118 R)
• M20: 17,591,662 km (0.083 R)
• M21: 20,134,228 km (0.094 R)
• M22: 20,758,799 km (0.113 R)
• M23: 21,267,880 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216.7

Radius: 13.9

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 2.78 AU - 2.8 AU

Year: 2963 Days

Day: 9.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,251,240 km

• M1: 172,935 km (0.072 R)
• M2: 616,942 km (0.081 R)
• M3: 1,453,942 km (0.067 R)
• M4: 2,154,957 km (0.092 R)
• M5: 2,843,108 km (0.111 R)
• M6: 3,828,060 km (0.096 R)
• M7: 4,429,144 km (0.054 R)
• M8: 4,946,454 km (0.093 R)
• M9: 5,844,789 km (0.083 R)
• M10: 7,379,813 km (0.056 R)
• M11: 8,493,270 km (0.089 R)
• M12: 9,847,729 km (0.119 R)
• M13: 10,490,251 km (0.076 R)
• M14: 10,981,531 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 600.5

Radius: 13.2

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 3.92 AU - 5.18 AU

Year: 6171 Days

Day: 12.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,251,240 km

• M1: 164,258 km (0.11 R)
• M2: 852,259 km (0.03 R)
• M3: 1,546,543 km (0.12 R)
• M4: 2,378,457 km (0.079 R)
• M5: 3,139,162 km (0.081 R)
• M6: 3,687,887 km (0.079 R)
• M7: 4,816,453 km (0.077 R)
• M8: 5,974,789 km (0.115 R)
• M9: 6,686,875 km (0.048 R)
• M10: 7,239,789 km (0.064 R)
• M11: 8,280,841 km (0.106 R)
• M12: 9,938,385 km (0.09 R)
• M13: 17,168,300 km (0.055 R)
• M14: 25,928,602 km (0.036 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 190 - 18,222 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit