🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.57

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.69 AU - 0.71 AU

Year: 224 Days

Day: 24.8 Hours

Environment

Temp: 144 °C

Axial Tilt: 35.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 25,243,899 km

• M1: 56,249 km (0.069 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.35

Radius: 0.66

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.83 AU - 0.99 AU

Year: 332 Days

Day: 20.4 Hours

Environment

Temp: 33 °C

Axial Tilt: 19.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.53

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.85 AU - 1.03 AU

Year: 349 Days

Day: 45 Hours

Environment

Temp: 4 °C

Axial Tilt: 35.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.9

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.41 AU - 1.69 AU

Year: 739 Days

Day: 36.1 Hours

Environment

Temp: -57 °C

Axial Tilt: 16.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 2.82 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291.3

Radius: 11.5

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 3.35 AU - 4.81 AU

Year: 3155 Days

Day: 14.3 Hours

Environment

Temp: -136 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 25,243,899 km

• M1: 143,016 km (0.061 R)
• M2: 690,843 km (0.075 R)
• M3: 1,301,352 km (0.074 R)
• M4: 1,895,854 km (0.111 R)
• M5: 2,327,294 km (0.118 R)
• M6: 2,990,013 km (0.069 R)
• M7: 3,374,778 km (0.089 R)
• M8: 3,829,107 km (0.057 R)
• M9: 4,245,438 km (0.084 R)
• M10: 5,490,242 km (0.1 R)
• M11: 5,922,281 km (0.117 R)
• M12: 6,992,055 km (0.107 R)
• M13: 7,704,889 km (0.116 R)
• M14: 8,124,810 km (0.089 R)
• M15: 9,142,674 km (0.093 R)
• M16: 9,995,531 km (0.048 R)
• M17: 11,469,220 km (0.109 R)
• M18: 12,177,715 km (0.088 R)
• M19: 12,873,495 km (0.12 R)
• M20: 13,988,598 km (0.088 R)
• M21: 15,542,471 km (0.046 R)
• M22: 16,410,288 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319.6

Radius: 9.8

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 4.76 AU - 4.84 AU

Year: 4027 Days

Day: 9.4 Hours

Environment

Temp: -136 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 25,243,899 km

• M1: 121,922 km (0.093 R)
• M2: 459,864 km (0.043 R)
• M3: 1,280,707 km (0.07 R)
• M4: 1,723,966 km (0.112 R)
• M5: 2,096,016 km (0.116 R)
• M6: 2,747,963 km (0.104 R)
• M7: 3,121,808 km (0.098 R)
• M8: 4,786,085 km (0.109 R)
• M9: 5,136,293 km (0.104 R)
• M10: 5,604,684 km (0.092 R)
• M11: 6,236,735 km (0.104 R)
• M12: 10,555,177 km (0.073 R)
• M13: 12,409,293 km (0.069 R)
• M14: 14,326,988 km (0.091 R)
• M15: 14,762,318 km (0.072 R)
• M16: 15,761,332 km (0.079 R)
• M17: 17,018,852 km (0.046 R)
• M18: 18,342,045 km (0.042 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.4

Radius: 13.6

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 4.72 AU - 6.56 AU

Year: 5128 Days

Day: 13.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,243,899 km

• M1: 169,195 km (0.083 R)
• M2: 753,674 km (0.049 R)
• M3: 1,536,669 km (0.115 R)
• M4: 2,235,890 km (0.078 R)
• M5: 2,818,873 km (0.092 R)
• M6: 3,247,471 km (0.073 R)
• M7: 5,268,089 km (0.073 R)
• M8: 5,971,797 km (0.116 R)
• M9: 7,050,847 km (0.093 R)
• M10: 7,484,232 km (0.078 R)
• M11: 8,345,168 km (0.116 R)
• M12: 11,400,854 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 119.8

Radius: 13.9

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 7.54 AU - 9.04 AU

Year: 9139 Days

Day: 6.6 Hours

Environment

Temp: -175 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 25,243,899 km

• M1: 176,376 km (0.113 R)
• M2: 829,670 km (0.107 R)
• M3: 1,473,988 km (0.088 R)
• M4: 2,056,971 km (0.117 R)
• M5: 2,809,149 km (0.095 R)
• M6: 3,459,600 km (0.059 R)
• M7: 4,164,655 km (0.098 R)
• M8: 4,646,809 km (0.081 R)
• M9: 5,166,362 km (0.101 R)
• M10: 6,806,853 km (0.057 R)
• M11: 8,055,995 km (0.078 R)
• M12: 9,648,015 km (0.12 R)
• M13: 11,048,700 km (0.098 R)
• M14: 13,154,141 km (0.102 R)
• M15: 14,046,791 km (0.088 R)
• M16: 15,569,548 km (0.034 R)
• M17: 17,728,245 km (0.112 R)
• M18: 19,695,308 km (0.087 R)
• M19: 22,842,847 km (0.077 R)
• M20: 23,338,764 km (0.096 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 154 - 13,796 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit