🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 317.3

Radius: 11.2

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.44 AU - 0.66 AU

Year: 272 Days

Day: 7.6 Hours

Environment

Temp: -137 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 29,151,553 km

• M1: 139,276 km (0.112 R)
• M2: 501,602 km (0.065 R)
• M3: 909,256 km (0.102 R)
• M4: 1,280,259 km (0.079 R)
• M5: 1,682,677 km (0.035 R)
• M6: 2,051,735 km (0.109 R)
• M7: 2,436,501 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.6

Radius: 14.8

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.5 AU - 0.62 AU

Year: 279 Days

Day: 8.1 Hours

Environment

Temp: -136 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 29,151,553 km

• M1: 184,155 km (0.114 R)
• M2: 660,026 km (0.114 R)
• M3: 1,183,319 km (0.078 R)
• M4: 1,951,355 km (0.064 R)
• M5: 2,484,671 km (0.088 R)
• M6: 2,979,391 km (0.095 R)
• M7: 3,507,920 km (0.098 R)
• M8: 4,039,591 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.8

Radius: 12

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.7 AU - 0.74 AU

Year: 407 Days

Day: 7.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 29,151,553 km

• M1: 149,299 km (0.103 R)
• M2: 812,765 km (0.113 R)
• M3: 1,272,479 km (0.09 R)
• M4: 2,933,165 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185.2

Radius: 14.4

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.75 AU - 0.77 AU

Year: 442 Days

Day: 12.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 29,151,553 km

• M1: 179,069 km (0.11 R)
• M2: 654,939 km (0.058 R)
• M3: 1,222,065 km (0.086 R)
• M4: 1,807,292 km (0.056 R)
• M5: 2,620,356 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.7

Radius: 8.5

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.63 AU - 0.89 AU

Year: 442 Days

Day: 11.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 29,151,553 km

• M1: 105,766 km (0.097 R)
• M2: 404,662 km (0.029 R)
• M3: 677,379 km (0.104 R)
• M4: 1,025,194 km (0.102 R)
• M5: 1,468,453 km (0.081 R)
• M6: 1,804,599 km (0.055 R)
• M7: 2,341,207 km (0.059 R)
• M8: 3,194,214 km (0.101 R)
• M9: 3,653,629 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 73.9

Radius: 12.4

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.93 AU - 0.97 AU

Year: 617 Days

Day: 14.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 29,151,553 km

• M1: 154,235 km (0.063 R)
• M2: 580,589 km (0.102 R)
• M3: 1,035,816 km (0.099 R)
• M4: 3,276,493 km (0.044 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 985.4

Radius: 9.7

Gravity: 10.47 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 2.12 AU - 2.44 AU

Year: 2296 Days

Day: 13.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 29,151,553 km

• M1: 120,725 km (0.085 R)
• M2: 466,895 km (0.117 R)
• M3: 1,184,067 km (0.118 R)
• M4: 1,636,152 km (0.1 R)
• M5: 2,161,390 km (0.036 R)
• M6: 2,671,818 km (0.099 R)
• M7: 4,368,707 km (0.037 R)
• M8: 4,834,554 km (0.1 R)
• M9: 5,333,314 km (0.088 R)
• M10: 6,051,234 km (0.088 R)
• M11: 7,399,709 km (0.083 R)
• M12: 8,325,869 km (0.105 R)
• M13: 8,628,506 km (0.076 R)
• M14: 9,008,335 km (0.047 R)
• M15: 10,523,761 km (0.119 R)
• M16: 11,199,345 km (0.077 R)
• M17: 12,947,845 km (0.11 R)
• M18: 15,519,134 km (0.045 R)
• M19: 16,342,071 km (0.114 R)
• M20: 17,031,867 km (0.113 R)
• M21: 18,526,350 km (0.109 R)
• M22: 18,927,721 km (0.096 R)
• M23: 19,688,576 km (0.109 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636.5

Radius: 14.5

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 3.36 AU - 4.22 AU

Year: 4920 Days

Day: 10.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 29,151,553 km

• M1: 180,265 km (0.116 R)
• M2: 1,002,306 km (0.098 R)
• M3: 1,476,531 km (0.096 R)
• M4: 1,993,092 km (0.097 R)
• M5: 2,516,087 km (0.073 R)
• M6: 3,000,335 km (0.114 R)
• M7: 5,517,469 km (0.101 R)
• M8: 6,756,289 km (0.118 R)
• M9: 7,459,099 km (0.111 R)
• M10: 7,918,215 km (0.05 R)
• M11: 9,615,104 km (0.075 R)
• M12: 10,245,809 km (0.112 R)
• M13: 10,725,719 km (0.117 R)
• M14: 12,500,548 km (0.028 R)
• M15: 14,087,931 km (0.069 R)
• M16: 15,125,093 km (0.096 R)
• M17: 18,672,058 km (0.085 R)
• M18: 20,742,194 km (0.072 R)
• M19: 22,156,492 km (0.063 R)
• M20: 23,861,459 km (0.055 R)
• M21: 25,176,723 km (0.062 R)
• M22: 26,621,539 km (0.042 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: 183 - 19,037 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit