🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.08

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.53 AU - 0.57 AU

Year: 155 Days

Day: 22.3 Hours

Environment

Temp: 141 °C

Axial Tilt: 37.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.75

Radius: 0.89

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.58 AU - 0.84 AU

Year: 228 Days

Day: 13.2 Hours

Environment

Temp: 174 °C

Axial Tilt: 161.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.39

Radius: 0.69

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.68 AU - 1.08 AU

Year: 314 Days

Day: 46.5 Hours

Environment

Temp: 31 °C

Axial Tilt: 35 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 27,557,203 km

• M1: 173,085 km (0.101 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.16

Radius: 1.58

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.81 AU - 1.03 AU

Year: 336 Days

Day: 28.9 Hours

Environment

Temp: 24 °C

Axial Tilt: 1.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.79

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.04 AU - 1.12 AU

Year: 427 Days

Day: 44 Hours

Environment

Temp: 16 °C

Axial Tilt: 12.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 27,557,203 km

• M1: 106,214 km (0.117 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.31

Radius: 0.63

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.1 AU - 1.2 AU

Year: 470 Days

Day: 12.2 Hours

Environment

Temp: 1 °C

Axial Tilt: 38.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 7 - Terrestrial

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.75

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 2.18 AU - 3.56 AU

Year: 1851 Days

Day: 46.7 Hours

Environment

Temp: -105 °C

Axial Tilt: 3.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.93 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 4.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 726.8

Radius: 14.4

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 4.27 AU - 5.69 AU

Year: 4232 Days

Day: 13.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (76)

Outer Limit: 27,557,203 km

• M1: 210,634 km (0.033 R)
• M2: 314,305 km (0.109 R)
• M3: 406,308 km (0.085 R)
• M4: 532,269 km (0.095 R)
• M5: 719,117 km (0.092 R)
• M6: 968,048 km (0.063 R)
• M7: 1,317,209 km (0.097 R)
• M8: 1,418,188 km (0.085 R)
• M9: 1,801,458 km (0.092 R)
• M10: 1,898,547 km (0.094 R)
• M11: 2,375,315 km (0.119 R)
• M12: 2,627,836 km (0.105 R)
• M13: 2,738,838 km (0.043 R)
• M14: 2,870,484 km (0.101 R)
• M15: 3,258,242 km (0.071 R)
• M16: 3,519,589 km (0.051 R)
• M17: 3,683,848 km (0.047 R)
• M18: 3,871,742 km (0.114 R)
• M19: 4,127,256 km (0.078 R)
• M20: 4,278,948 km (0.116 R)
• M21: 4,432,585 km (0.094 R)
• M22: 4,655,336 km (0.056 R)
• M23: 4,745,394 km (0.052 R)
• M24: 4,858,939 km (0.088 R)
• M25: 5,463,763 km (0.11 R)
• M26: 5,582,993 km (0.102 R)
• M27: 6,068,138 km (0.105 R)
• M28: 6,950,018 km (0.106 R)
• M29: 7,131,181 km (0.075 R)
• M30: 7,498,444 km (0.084 R)
• M31: 7,631,137 km (0.095 R)
• M32: 7,791,356 km (0.067 R)
• M33: 8,006,927 km (0.104 R)
• M34: 8,665,008 km (0.095 R)
• M35: 9,455,034 km (0.077 R)
• M36: 9,829,627 km (0.104 R)
• M37: 10,062,701 km (0.089 R)
• M38: 10,386,131 km (0.105 R)
• M39: 10,564,003 km (0.106 R)
• M40: 10,952,808 km (0.115 R)
• M41: 11,498,990 km (0.073 R)
• M42: 12,147,497 km (0.105 R)
• M43: 12,429,189 km (0.117 R)
• M44: 12,555,001 km (0.116 R)
• M45: 12,681,262 km (0.091 R)
• M46: 12,871,550 km (0.113 R)
• M47: 13,286,984 km (0.1 R)
• M48: 14,295,423 km (0.107 R)
• M49: 14,493,341 km (0.103 R)
• M50: 14,825,448 km (0.056 R)
• M51: 15,429,674 km (0.081 R)
• M52: 15,768,812 km (0.108 R)
• M53: 16,696,768 km (0.11 R)
• M54: 17,185,055 km (0.041 R)
• M55: 17,571,915 km (0.087 R)
• M56: 18,246,901 km (0.103 R)
• M57: 18,677,743 km (0.115 R)
• M58: 18,894,361 km (0.088 R)
• M59: 19,257,285 km (0.063 R)
• M60: 19,366,641 km (0.103 R)
• M61: 19,585,952 km (0.044 R)
• M62: 20,322,871 km (0.097 R)
• M63: 20,844,070 km (0.068 R)
• M64: 20,956,418 km (0.089 R)
• M65: 21,256,810 km (0.096 R)
• M66: 21,710,092 km (0.101 R)
• M67: 22,090,220 km (0.092 R)
• M68: 22,357,701 km (0.06 R)
• M69: 23,166,427 km (0.088 R)
• M70: 24,220,344 km (0.091 R)
• M71: 24,338,377 km (0.049 R)
• M72: 24,496,203 km (0.097 R)
• M73: 25,369,854 km (0.114 R)
• M74: 25,609,809 km (0.077 R)
• M75: 26,699,330 km (0.11 R)
• M76: 27,106,685 km (0.086 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 369 - 11,217 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit