🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.15

Radius: 0.47

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.51 AU - 0.55 AU

Year: 139 Days

Day: 16.1 Hours

Environment

Temp: 170 °C

Axial Tilt: 10.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 68,005,227 km

• M1: 17,204 km (0.087 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.42

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.57 AU - 0.75 AU

Year: 193 Days

Day: 40.1 Hours

Environment

Temp: 228 °C

Axial Tilt: 18.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 68,005,227 km

• M1: 316,100 km (0.059 R)
• M2: 385,963 km (0.087 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.01

Radius: 1

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.83 AU - 0.99 AU

Year: 312 Days

Day: 35.9 Hours

Environment

Temp: 167 °C

Axial Tilt: 33.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.35 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.32

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 1.05 AU - 1.65 AU

Year: 565 Days

Day: 13.5 Hours

Environment

Temp: 2 °C

Axial Tilt: 44.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.48

Radius: 1.17

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 2.1 AU - 2.8 AU

Year: 1380 Days

Day: 46.8 Hours

Environment

Temp: -82 °C

Axial Tilt: 28.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.75

Radius: 1.25

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 2.36 AU - 2.6 AU

Year: 1406 Days

Day: 41.9 Hours

Environment

Temp: -77 °C

Axial Tilt: 21.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,005,227 km

• M1: 202,855 km (0.049 R)

Asteroid Belt

Center: 6.73 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 10.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40.7

Radius: 11

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 10.15 AU - 11.81 AU

Year: 13094 Days

Day: 6.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 68,005,227 km

• M1: 342,130 km (0.115 R)
• M2: 819,348 km (0.119 R)
• M3: 1,921,585 km (0.082 R)
• M4: 2,037,972 km (0.055 R)
• M5: 2,308,594 km (0.109 R)
• M6: 3,468,726 km (0.064 R)
• M7: 3,593,490 km (0.098 R)
• M8: 4,297,348 km (0.114 R)
• M9: 5,063,439 km (0.104 R)
• M10: 5,639,391 km (0.12 R)
• M11: 5,723,465 km (0.082 R)
• M12: 6,279,670 km (0.1 R)
• M13: 6,366,736 km (0.082 R)
• M14: 6,630,626 km (0.116 R)
• M15: 6,853,228 km (0.076 R)
• M16: 7,768,468 km (0.105 R)
• M17: 8,455,870 km (0.113 R)
• M18: 9,286,587 km (0.111 R)
• M19: 9,914,000 km (0.085 R)
• M20: 10,322,702 km (0.066 R)
• M21: 11,368,840 km (0.09 R)
• M22: 12,284,379 km (0.06 R)
• M23: 12,750,975 km (0.094 R)
• M24: 12,917,028 km (0.097 R)
• M25: 14,157,045 km (0.111 R)
• M26: 14,300,360 km (0.079 R)
• M27: 14,386,528 km (0.09 R)
• M28: 15,111,779 km (0.098 R)
• M29: 15,611,735 km (0.118 R)
• M30: 16,567,515 km (0.087 R)
• M31: 16,809,415 km (0.097 R)
• M32: 18,912,612 km (0.12 R)
• M33: 19,515,042 km (0.065 R)
• M34: 19,866,747 km (0.087 R)
• M35: 21,689,298 km (0.054 R)
• M36: 22,119,990 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 536.5

Radius: 6.9

Gravity: 11.27 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 12 AU - 16.24 AU

Year: 19095 Days

Day: 18.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 68,005,227 km

• M1: 134,339 km (0.083 R)
• M2: 249,828 km (0.092 R)
• M3: 404,064 km (0.039 R)
• M4: 569,220 km (0.069 R)
• M5: 670,348 km (0.087 R)
• M6: 1,059,153 km (0.059 R)
• M7: 1,981,125 km (0.099 R)
• M8: 2,529,999 km (0.107 R)
• M9: 2,597,617 km (0.081 R)
• M10: 4,031,513 km (0.095 R)
• M11: 4,190,386 km (0.056 R)
• M12: 4,637,983 km (0.067 R)
• M13: 4,721,010 km (0.066 R)
• M14: 5,934,398 km (0.083 R)
• M15: 6,251,994 km (0.087 R)
• M16: 6,528,750 km (0.096 R)
• M17: 7,626,499 km (0.105 R)
• M18: 7,724,636 km (0.087 R)
• M19: 7,922,254 km (0.106 R)
• M20: 8,780,348 km (0.074 R)
• M21: 9,561,698 km (0.098 R)
• M22: 10,968,217 km (0.115 R)
• M23: 11,079,069 km (0.047 R)
• M24: 11,357,919 km (0.099 R)
• M25: 11,752,110 km (0.087 R)
• M26: 11,922,352 km (0.085 R)
• M27: 12,380,570 km (0.12 R)
• M28: 13,137,236 km (0.085 R)
• M29: 15,124,644 km (0.037 R)
• M30: 15,186,428 km (0.1 R)
• M31: 15,807,708 km (0.086 R)
• M32: 16,437,365 km (0.109 R)
• M33: 16,627,953 km (0.095 R)
• M34: 17,656,289 km (0.115 R)
• M35: 17,981,814 km (0.067 R)
• M36: 19,572,039 km (0.11 R)
• M37: 20,656,923 km (0.104 R)
• M38: 20,725,439 km (0.103 R)
• M39: 23,525,013 km (0.108 R)
• M40: 23,811,343 km (0.106 R)
• M41: 24,750,220 km (0.047 R)
• M42: 25,701,064 km (0.102 R)
• M43: 27,865,147 km (0.089 R)
• M44: 28,320,074 km (0.082 R)
• M45: 28,396,219 km (0.115 R)
• M46: 28,777,544 km (0.078 R)
• M47: 29,083,771 km (0.053 R)
• M48: 29,314,301 km (0.12 R)
• M49: 30,787,840 km (0.088 R)
• M50: 30,944,320 km (0.085 R)
• M51: 31,179,637 km (0.059 R)
• M52: 31,809,893 km (0.07 R)
• M53: 33,163,155 km (0.064 R)
• M54: 35,023,704 km (0.063 R)
• M55: 35,925,480 km (0.099 R)
• M56: 36,337,921 km (0.111 R)
• M57: 36,668,981 km (0.088 R)
• M58: 36,834,885 km (0.116 R)
• M59: 37,501,045 km (0.088 R)
• M60: 37,835,545 km (0.032 R)
• M61: 37,919,320 km (0.089 R)
• M62: 38,171,093 km (0.088 R)
• M63: 40,719,044 km (0.085 R)
• M64: 41,407,793 km (0.042 R)
• M65: 41,667,046 km (0.105 R)
• M66: 44,465,723 km (0.115 R)
• M67: 45,263,678 km (0.049 R)
• M68: 46,784,041 km (0.091 R)
• M69: 48,411,816 km (0.095 R)
• M70: 48,684,981 km (0.084 R)
• M71: 49,141,255 km (0.05 R)
• M72: 50,980,710 km (0.117 R)
• M73: 51,629,965 km (0.077 R)
• M74: 51,815,915 km (0.064 R)
• M75: 52,002,015 km (0.107 R)
• M76: 52,468,461 km (0.076 R)
• M77: 52,561,960 km (0.107 R)
• M78: 53,030,052 km (0.107 R)
• M79: 54,064,820 km (0.032 R)
• M80: 54,348,158 km (0.087 R)
• M81: 55,106,171 km (0.11 R)
• M82: 56,249,847 km (0.114 R)
• M83: 57,208,769 km (0.098 R)
• M84: 59,045,681 km (0.025 R)
• M85: 60,020,162 km (0.12 R)
• M86: 60,803,606 km (0.12 R)
• M87: 62,876,284 km (0.112 R)
• M88: 63,771,478 km (0.071 R)
• M89: 64,070,973 km (0.102 R)
• M90: 64,170,904 km (0.067 R)
• M91: 64,971,851 km (0.032 R)
• M92: 65,072,231 km (0.08 R)
• M93: 65,172,612 km (0.037 R)
• M94: 65,373,671 km (0.084 R)

Kuiper Belt

Range: 30.5 - 50.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 428 - 13,958 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit