🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.82 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.81

Radius: 0.92

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.37 AU - 1.91 AU

Year: 800 Days

Day: 16.7 Hours

Environment

Temp: -65 °C

Axial Tilt: 22.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 81,396,765 km

• M1: 181,163 km (0.074 R)
• M2: 702,960 km (0.115 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.43

Radius: 0.71

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.71 AU - 2.19 AU

Year: 1037 Days

Day: 28.2 Hours

Environment

Temp: -74 °C

Axial Tilt: 5.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.36

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.83 AU - 2.51 AU

Year: 1217 Days

Day: 24.5 Hours

Environment

Temp: -90 °C

Axial Tilt: 46.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,396,765 km

• M1: 177,872 km (0.101 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 3.17 AU - 4.37 AU

Year: 2787 Days

Day: 43.8 Hours

Environment

Temp: -125 °C

Axial Tilt: 38 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.54

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 3.39 AU - 4.29 AU

Year: 2865 Days

Day: 40.6 Hours

Environment

Temp: -126 °C

Axial Tilt: 15.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,396,765 km

• M1: 27,975 km (0.106 R)

Asteroid Belt

Center: 6.67 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 9.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 12.7

Radius: 9

Gravity: 0.16 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 7.29 AU - 11.71 AU

Year: 11150 Days

Day: 5.9 Hours

Environment

Temp: -174 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 81,396,765 km

• M1: 112,348 km (0.095 R)
• M2: 1,121,535 km (0.112 R)
• M3: 4,054,850 km (0.035 R)
• M4: 5,505,950 km (0.093 R)
• M5: 6,361,051 km (0.032 R)
• M6: 6,757,186 km (0.116 R)
• M7: 9,746,600 km (0.053 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797.5

Radius: 11.6

Gravity: 5.93 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 8.24 AU - 12.8 AU

Year: 12993 Days

Day: 6.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 81,396,765 km

• M1: 144,811 km (0.033 R)
• M2: 529,726 km (0.115 R)
• M3: 1,323,193 km (0.115 R)
• M4: 4,394,587 km (0.076 R)
• M5: 5,974,490 km (0.046 R)
• M6: 9,163,019 km (0.047 R)
• M7: 10,439,538 km (0.117 R)
• M8: 13,740,116 km (0.112 R)
• M9: 15,699,549 km (0.107 R)
• M10: 17,679,776 km (0.066 R)
• M11: 21,043,633 km (0.092 R)
• M12: 25,413,836 km (0.107 R)
• M13: 26,438,282 km (0.116 R)
• M14: 28,459,948 km (0.054 R)
• M15: 30,354,605 km (0.073 R)
• M16: 34,393,448 km (0.095 R)
• M17: 39,451,651 km (0.12 R)
• M18: 43,955,894 km (0.118 R)
• M19: 55,150,751 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 623.6

Radius: 3.4

Gravity: 53.94 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 11.73 AU - 19.23 AU

Year: 23193 Days

Day: 23.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 81,396,765 km

• M1: 59,839 km (0.115 R)
• M2: 327,919 km (0.107 R)
• M3: 654,790 km (0.077 R)
• M4: 862,133 km (0.061 R)
• M5: 968,945 km (0.091 R)
• M6: 1,195,287 km (0.105 R)
• M7: 1,590,824 km (0.078 R)
• M8: 1,734,139 km (0.025 R)
• M9: 2,005,958 km (0.08 R)
• M10: 2,809,298 km (0.076 R)
• M11: 6,287,449 km (0.099 R)
• M12: 7,455,659 km (0.116 R)
• M13: 8,871,752 km (0.12 R)
• M14: 9,323,538 km (0.087 R)
• M15: 9,731,192 km (0.11 R)
• M16: 12,500,099 km (0.084 R)
• M17: 13,067,374 km (0.116 R)
• M18: 15,347,694 km (0.119 R)
• M19: 16,413,280 km (0.079 R)
• M20: 16,665,951 km (0.066 R)
• M21: 22,487,552 km (0.115 R)
• M22: 25,962,860 km (0.105 R)
• M23: 26,884,383 km (0.114 R)
• M24: 32,742,486 km (0.085 R)
• M25: 37,911,541 km (0.103 R)
• M26: 44,083,052 km (0.045 R)
• M27: 45,558,236 km (0.049 R)
• M28: 49,476,953 km (0.071 R)
• M29: 73,377,606 km (0.064 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 264 - 12,945 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit