🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.74

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.7 AU - 0.72 AU

Year: 217 Days

Day: 16 Hours

Environment

Temp: 145 °C

Axial Tilt: 14.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.31

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.71 AU - 0.95 AU

Year: 275 Days

Day: 36.9 Hours

Environment

Temp: 116 °C

Axial Tilt: 32.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.65

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.13 AU - 1.33 AU

Year: 496 Days

Day: 39.1 Hours

Environment

Temp: -5 °C

Axial Tilt: 13.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 70,247,089 km

• M1: 178,919 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 558.7

Radius: 9

Gravity: 6.9 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 4.46 AU - 5.6 AU

Year: 4100 Days

Day: 5.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 70,247,089 km

• M1: 115,639 km (0.097 R)
• M2: 403,615 km (0.079 R)
• M3: 705,803 km (0.088 R)
• M4: 1,845,140 km (0.113 R)
• M5: 2,354,072 km (0.109 R)
• M6: 2,884,247 km (0.117 R)
• M7: 3,472,615 km (0.076 R)
• M8: 3,900,764 km (0.118 R)
• M9: 4,479,259 km (0.081 R)
• M10: 5,779,415 km (0.074 R)
• M11: 6,061,407 km (0.086 R)
• M12: 6,900,202 km (0.078 R)
• M13: 7,217,798 km (0.1 R)
• M14: 7,746,327 km (0.067 R)
• M15: 8,623,719 km (0.056 R)
• M16: 9,488,095 km (0.116 R)
• M17: 9,881,538 km (0.114 R)
• M18: 12,381,617 km (0.101 R)
• M19: 13,977,976 km (0.069 R)
• M20: 14,851,927 km (0.09 R)
• M21: 17,574,459 km (0.114 R)
• M22: 19,711,763 km (0.109 R)
• M23: 20,613,240 km (0.116 R)
• M24: 21,207,144 km (0.04 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 100.2

Radius: 9.1

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 5.14 AU - 6.44 AU

Year: 5063 Days

Day: 5.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 70,247,089 km

• M1: 114,742 km (0.093 R)
• M2: 444,455 km (0.12 R)
• M3: 838,047 km (0.098 R)
• M4: 1,235,379 km (0.117 R)
• M5: 1,976,038 km (0.084 R)
• M6: 3,318,978 km (0.1 R)
• M7: 4,777,109 km (0.044 R)
• M8: 5,166,811 km (0.103 R)
• M9: 5,554,270 km (0.07 R)
• M10: 9,623,332 km (0.111 R)
• M11: 10,531,690 km (0.072 R)
• M12: 11,382,154 km (0.058 R)
• M13: 11,843,514 km (0.106 R)
• M14: 13,600,391 km (0.06 R)
• M15: 14,474,043 km (0.041 R)
• M16: 15,338,270 km (0.08 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 288.1

Radius: 7.3

Gravity: 5.41 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 10.81 AU - 14.25 AU

Year: 16120 Days

Day: 19.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 70,247,089 km

• M1: 90,956 km (0.057 R)
• M2: 1,050,027 km (0.118 R)
• M3: 1,573,171 km (0.112 R)
• M4: 2,794,937 km (0.035 R)
• M5: 3,716,011 km (0.09 R)
• M6: 4,611,654 km (0.059 R)
• M7: 5,960,129 km (0.056 R)
• M8: 10,212,299 km (0.092 R)
• M9: 11,722,788 km (0.111 R)
• M10: 12,709,386 km (0.076 R)
• M11: 15,930,976 km (0.069 R)
• M12: 17,729,442 km (0.092 R)
• M13: 31,546,451 km (0.089 R)
• M14: 35,778,425 km (0.102 R)
• M15: 47,764,356 km (0.063 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 570.1

Radius: 4.2

Gravity: 32.32 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 13.25 AU - 15.15 AU

Year: 19447 Days

Day: 24.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 70,247,089 km

• M1: 53,107 km (0.055 R)
• M2: 257,458 km (0.027 R)
• M3: 630,854 km (0.093 R)
• M4: 1,243,757 km (0.033 R)
• M5: 1,480,421 km (0.057 R)
• M6: 2,309,492 km (0.102 R)
• M7: 2,461,932 km (0.092 R)
• M8: 3,724,389 km (0.086 R)
• M9: 4,152,388 km (0.062 R)
• M10: 6,448,715 km (0.11 R)
• M11: 9,038,853 km (0.038 R)
• M12: 10,801,265 km (0.095 R)
• M13: 14,322,650 km (0.095 R)
• M14: 15,985,131 km (0.095 R)
• M15: 16,221,346 km (0.079 R)
• M16: 16,539,989 km (0.104 R)
• M17: 31,232,445 km (0.1 R)
• M18: 36,397,910 km (0.12 R)
• M19: 40,188,720 km (0.086 R)
• M20: 43,618,700 km (0.071 R)
• M21: 44,389,279 km (0.095 R)
• M22: 45,012,354 km (0.105 R)
• M23: 45,641,114 km (0.066 R)
• M24: 51,395,096 km (0.11 R)
• M25: 55,969,351 km (0.099 R)
• M26: 59,290,274 km (0.112 R)
• M27: 61,383,148 km (0.101 R)
• M28: 61,575,680 km (0.094 R)
• M29: 69,617,164 km (0.094 R)
• M30: 70,036,786 km (0.037 R)

Kuiper Belt

Range: 30.2 - 52.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 208 - 15,359 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit