🌌 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: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.6

Radius: 12.2

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.97 AU - 1.03 AU

Year: 636 Days

Day: 7.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 50,522,656 km

• M1: 151,692 km (0.052 R)
• M2: 634,744 km (0.082 R)
• M3: 1,262,157 km (0.114 R)
• M4: 2,560,368 km (0.071 R)
• M5: 3,043,120 km (0.048 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.9

Radius: 11.9

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 2.86 AU - 2.98 AU

Year: 3173 Days

Day: 8.8 Hours

Environment

Temp: -195 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 50,522,656 km

• M1: 147,952 km (0.027 R)
• M2: 869,463 km (0.116 R)
• M3: 1,665,174 km (0.109 R)
• M4: 2,163,933 km (0.093 R)
• M5: 2,927,481 km (0.088 R)
• M6: 3,530,959 km (0.115 R)
• M7: 4,419,271 km (0.098 R)
• M8: 5,111,310 km (0.097 R)
• M9: 8,953,732 km (0.085 R)
• M10: 9,513,078 km (0.052 R)
• M11: 11,839,026 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 589

Radius: 11.8

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 3.69 AU - 3.77 AU

Year: 4580 Days

Day: 7.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 50,522,656 km

• M1: 147,504 km (0.079 R)
• M2: 538,104 km (0.102 R)
• M3: 1,141,432 km (0.077 R)
• M4: 1,832,275 km (0.118 R)
• M5: 2,667,480 km (0.102 R)
• M6: 3,257,942 km (0.029 R)
• M7: 3,762,087 km (0.068 R)
• M8: 4,979,365 km (0.093 R)
• M9: 6,321,258 km (0.057 R)
• M10: 6,914,414 km (0.05 R)
• M11: 7,374,876 km (0.097 R)
• M12: 9,034,215 km (0.11 R)
• M13: 9,706,508 km (0.096 R)
• M14: 10,798,872 km (0.039 R)
• M15: 12,111,892 km (0.085 R)
• M16: 13,783,798 km (0.079 R)
• M17: 15,217,245 km (0.079 R)
• M18: 15,998,595 km (0.118 R)
• M19: 18,068,880 km (0.072 R)
• M20: 18,818,066 km (0.116 R)
• M21: 20,849,754 km (0.12 R)
• M22: 26,362,885 km (0.096 R)
• M23: 27,002,864 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723.3

Radius: 9.6

Gravity: 7.85 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 3.67 AU - 4.31 AU

Year: 5067 Days

Day: 12.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 50,522,656 km

• M1: 119,828 km (0.108 R)
• M2: 426,504 km (0.115 R)
• M3: 920,924 km (0.116 R)
• M4: 1,478,775 km (0.094 R)
• M5: 1,828,684 km (0.117 R)
• M6: 2,576,524 km (0.113 R)
• M7: 3,246,872 km (0.092 R)
• M8: 3,645,102 km (0.093 R)
• M9: 4,878,536 km (0.102 R)
• M10: 9,794,173 km (0.118 R)
• M11: 10,719,884 km (0.071 R)
• M12: 11,180,646 km (0.084 R)
• M13: 13,314,510 km (0.05 R)
• M14: 14,009,841 km (0.079 R)
• M15: 14,338,806 km (0.073 R)
• M16: 16,301,530 km (0.078 R)
• M17: 19,639,956 km (0.097 R)
• M18: 19,983,134 km (0.096 R)
• M19: 20,823,425 km (0.046 R)
• M20: 22,275,721 km (0.076 R)
• M21: 23,102,848 km (0.104 R)
• M22: 28,588,153 km (0.096 R)
• M23: 29,296,200 km (0.119 R)
• M24: 29,654,487 km (0.057 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 43.2

Radius: 9.9

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 4.35 AU - 5.31 AU

Year: 6749 Days

Day: 14.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,522,656 km

• M1: 149,598 km (0.088 R)
• M2: 463,604 km (0.09 R)
• M3: 1,624,932 km (0.072 R)
• M4: 2,099,905 km (0.055 R)
• M5: 4,232,573 km (0.116 R)
• M6: 6,589,337 km (0.083 R)
• M7: 9,675,990 km (0.068 R)
• M8: 13,286,086 km (0.119 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 778.6

Radius: 7.1

Gravity: 15.45 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 6.19 AU - 6.49 AU

Year: 10150 Days

Day: 20.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 50,522,656 km

• M1: 88,562 km (0.063 R)
• M2: 353,949 km (0.111 R)
• M3: 974,780 km (0.12 R)
• M4: 1,280,558 km (0.089 R)
• M5: 1,561,951 km (0.091 R)
• M6: 1,835,715 km (0.108 R)
• M7: 2,540,770 km (0.102 R)
• M8: 3,126,296 km (0.107 R)
• M9: 3,389,289 km (0.103 R)
• M10: 3,692,973 km (0.114 R)
• M11: 5,527,641 km (0.051 R)
• M12: 9,184,711 km (0.118 R)
• M13: 10,552,185 km (0.103 R)
• M14: 10,819,516 km (0.093 R)
• M15: 12,880,227 km (0.077 R)
• M16: 14,654,009 km (0.039 R)
• M17: 15,325,105 km (0.11 R)
• M18: 15,876,672 km (0.112 R)
• M19: 21,621,679 km (0.097 R)
• M20: 27,190,161 km (0.081 R)
• M21: 34,224,103 km (0.069 R)
• M22: 34,457,925 km (0.111 R)
• M23: 36,366,943 km (0.072 R)
• M24: 37,471,125 km (0.099 R)
• M25: 41,711,477 km (0.067 R)
• M26: 42,380,628 km (0.097 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: 436 - 19,419 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit