🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.1

Radius: 10.4

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.48 AU - 0.66 AU

Year: 287 Days

Day: 14.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 85,781,831 km

• M1: 129,851 km (0.103 R)
• M2: 477,666 km (0.054 R)
• M3: 846,724 km (0.066 R)
• M4: 1,211,892 km (0.108 R)
• M5: 1,759,570 km (0.057 R)
• M6: 2,289,895 km (0.1 R)
• M7: 2,716,697 km (0.073 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225.8

Radius: 13.4

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.7 AU - 0.72 AU

Year: 399 Days

Day: 10.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 85,781,831 km

• M1: 166,652 km (0.115 R)
• M2: 640,279 km (0.067 R)
• M3: 1,104,930 km (0.112 R)
• M4: 1,963,023 km (0.12 R)
• M5: 2,462,680 km (0.099 R)
• M6: 3,734,412 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 633.1

Radius: 11.3

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.8 AU - 0.9 AU

Year: 523 Days

Day: 12.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 85,781,831 km

• M1: 140,622 km (0.098 R)
• M2: 507,735 km (0.062 R)
• M3: 896,390 km (0.101 R)
• M4: 2,001,620 km (0.093 R)
• M5: 2,406,731 km (0.089 R)
• M6: 2,802,267 km (0.113 R)
• M7: 3,276,941 km (0.102 R)
• M8: 3,635,677 km (0.112 R)
• M9: 4,089,856 km (0.104 R)
• M10: 4,905,165 km (0.098 R)
• M11: 5,293,521 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 459.7

Radius: 12.5

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.27 AU - 1.61 AU

Year: 1152 Days

Day: 8.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 85,781,831 km

• M1: 155,582 km (0.089 R)
• M2: 574,905 km (0.119 R)
• M3: 1,285,345 km (0.058 R)
• M4: 1,919,789 km (0.077 R)
• M5: 2,364,843 km (0.107 R)
• M6: 3,285,768 km (0.109 R)
• M7: 4,298,844 km (0.077 R)
• M8: 5,126,420 km (0.107 R)
• M9: 5,708,356 km (0.109 R)
• M10: 6,420,890 km (0.063 R)
• M11: 7,526,867 km (0.048 R)
• M12: 8,436,871 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888

Radius: 13.8

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.22 AU - 1.72 AU

Year: 1189 Days

Day: 14.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 85,781,831 km

• M1: 171,589 km (0.062 R)
• M2: 640,129 km (0.053 R)
• M3: 1,148,762 km (0.043 R)
• M4: 2,048,144 km (0.072 R)
• M5: 2,986,422 km (0.061 R)
• M6: 3,705,838 km (0.11 R)
• M7: 4,999,860 km (0.046 R)
• M8: 6,154,157 km (0.116 R)
• M9: 7,323,265 km (0.042 R)
• M10: 8,406,503 km (0.106 R)
• M11: 9,378,440 km (0.081 R)
• M12: 11,616,275 km (0.095 R)
• M13: 12,264,033 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 786.8

Radius: 11.4

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 1.53 AU - 2.45 AU

Year: 1872 Days

Day: 6.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 85,781,831 km

• M1: 141,819 km (0.052 R)
• M2: 559,795 km (0.091 R)
• M3: 1,085,632 km (0.046 R)
• M4: 1,510,191 km (0.107 R)
• M5: 1,999,675 km (0.098 R)
• M6: 2,691,864 km (0.106 R)
• M7: 3,319,278 km (0.042 R)
• M8: 4,931,045 km (0.11 R)
• M9: 5,799,760 km (0.116 R)
• M10: 6,714,252 km (0.074 R)
• M11: 7,318,926 km (0.038 R)
• M12: 7,751,713 km (0.102 R)
• M13: 8,110,299 km (0.093 R)
• M14: 9,386,369 km (0.117 R)
• M15: 10,828,791 km (0.1 R)
• M16: 11,545,216 km (0.062 R)
• M17: 12,053,549 km (0.119 R)
• M18: 12,454,472 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523.9

Radius: 14.5

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 2.05 AU - 3.25 AU

Year: 2877 Days

Day: 6.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 85,781,831 km

• M1: 180,415 km (0.101 R)
• M2: 717,172 km (0.105 R)
• M3: 1,235,080 km (0.114 R)
• M4: 1,705,865 km (0.076 R)
• M5: 2,170,067 km (0.078 R)
• M6: 3,143,350 km (0.118 R)
• M7: 3,684,596 km (0.095 R)
• M8: 5,071,218 km (0.025 R)
• M9: 6,726,369 km (0.108 R)
• M10: 8,226,985 km (0.067 R)
• M11: 8,886,263 km (0.06 R)
• M12: 9,832,021 km (0.105 R)
• M13: 10,766,708 km (0.12 R)
• M14: 12,090,201 km (0.068 R)
• M15: 12,683,506 km (0.095 R)
• M16: 13,296,109 km (0.057 R)
• M17: 14,020,462 km (0.113 R)
• M18: 15,796,488 km (0.049 R)
• M19: 16,301,231 km (0.069 R)
• M20: 18,651,713 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 836.9

Radius: 5.8

Gravity: 24.88 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 9.23 AU - 11.13 AU

Year: 21660 Days

Day: 17 Hours

Environment

Temp: -226 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 85,781,831 km

• M1: 72,106 km (0.102 R)
• M2: 912,098 km (0.055 R)
• M3: 1,317,209 km (0.046 R)
• M4: 4,812,414 km (0.102 R)
• M5: 5,394,649 km (0.085 R)
• M6: 7,625,003 km (0.057 R)
• M7: 9,027,633 km (0.113 R)
• M8: 9,610,317 km (0.12 R)
• M9: 13,050,170 km (0.116 R)
• M10: 15,043,562 km (0.044 R)
• M11: 15,448,972 km (0.092 R)
• M12: 15,778,536 km (0.106 R)
• M13: 16,196,961 km (0.059 R)
• M14: 19,240,979 km (0.085 R)
• M15: 20,106,403 km (0.045 R)
• M16: 24,378,768 km (0.102 R)
• M17: 29,094,243 km (0.046 R)
• M18: 32,196,603 km (0.072 R)
• M19: 33,827,370 km (0.118 R)
• M20: 35,370,023 km (0.113 R)
• M21: 36,958,902 km (0.064 R)
• M22: 49,434,916 km (0.115 R)
• M23: 50,330,259 km (0.104 R)
• M24: 81,733,245 km (0.036 R)
• M25: 82,984,482 km (0.167 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 245 - 12,408 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit