🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.62

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.52 AU - 0.52 AU

Year: 142 Days

Day: 29.6 Hours

Environment

Temp: 197 °C

Axial Tilt: 6.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.39

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.52 AU - 0.68 AU

Year: 176 Days

Day: 42.7 Hours

Environment

Temp: 192 °C

Axial Tilt: 25.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.45

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.92 AU - 1.22 AU

Year: 419 Days

Day: 28.9 Hours

Environment

Temp: 0 °C

Axial Tilt: 41.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 51,380,788 km

• M1: 238,010 km (0.091 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.91 AU - 1.35 AU

Year: 455 Days

Day: 16.2 Hours

Environment

Temp: -1 °C

Axial Tilt: 8.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.36

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.87 AU - 1.43 AU

Year: 467 Days

Day: 42.2 Hours

Environment

Temp: -7 °C

Axial Tilt: 9.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 6 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.3

Radius: 14.7

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 4.21 AU - 5.25 AU

Year: 3896 Days

Day: 11.2 Hours

Environment

Temp: -137 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 51,380,788 km

• M1: 186,549 km (0.099 R)
• M2: 756,217 km (0.116 R)
• M3: 2,283,462 km (0.106 R)
• M4: 3,148,138 km (0.073 R)
• M5: 6,307,046 km (0.118 R)
• M6: 7,661,206 km (0.049 R)
• M7: 8,741,752 km (0.113 R)
• M8: 9,921,630 km (0.092 R)
• M9: 10,379,998 km (0.084 R)
• M10: 11,520,083 km (0.086 R)
• M11: 12,645,209 km (0.09 R)
• M12: 13,739,966 km (0.092 R)
• M13: 14,310,532 km (0.092 R)
• M14: 15,005,115 km (0.079 R)
• M15: 15,666,338 km (0.055 R)
• M16: 16,462,049 km (0.064 R)
• M17: 17,524,792 km (0.09 R)
• M18: 19,591,188 km (0.059 R)
• M19: 20,049,555 km (0.092 R)
• M20: 21,056,199 km (0.051 R)
• M21: 21,955,582 km (0.113 R)
• M22: 22,664,825 km (0.054 R)
• M23: 23,170,167 km (0.112 R)
• M24: 24,203,739 km (0.063 R)
• M25: 25,037,148 km (0.114 R)
• M26: 26,283,598 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994.4

Radius: 10.7

Gravity: 8.69 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 7.45 AU - 8.43 AU

Year: 8474 Days

Day: 5 Hours

Environment

Temp: -166 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 51,380,788 km

• M1: 133,142 km (0.107 R)
• M2: 722,707 km (0.106 R)
• M3: 1,521,859 km (0.098 R)
• M4: 1,988,006 km (0.107 R)
• M5: 2,356,914 km (0.043 R)
• M6: 3,188,679 km (0.091 R)
• M7: 4,013,561 km (0.059 R)
• M8: 4,668,501 km (0.09 R)
• M9: 5,800,358 km (0.035 R)
• M10: 7,186,682 km (0.066 R)
• M11: 8,418,770 km (0.087 R)
• M12: 9,687,809 km (0.107 R)
• M13: 10,549,791 km (0.093 R)
• M14: 12,719,858 km (0.092 R)
• M15: 13,628,665 km (0.084 R)
• M16: 15,440,146 km (0.053 R)
• M17: 16,193,970 km (0.072 R)
• M18: 16,828,863 km (0.037 R)
• M19: 22,869,176 km (0.105 R)
• M20: 26,759,020 km (0.105 R)
• M21: 28,451,720 km (0.092 R)
• M22: 31,939,295 km (0.104 R)
• M23: 33,956,921 km (0.072 R)
• M24: 34,416,636 km (0.08 R)
• M25: 40,261,275 km (0.113 R)
• M26: 41,295,595 km (0.114 R)
• M27: 46,030,367 km (0.111 R)
• M28: 48,021,515 km (0.062 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 250

Radius: 6.4

Gravity: 6.1 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 11.97 AU - 14.63 AU

Year: 18371 Days

Day: 21.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 51,380,788 km

• M1: 80,035 km (0.094 R)
• M2: 314,305 km (0.116 R)
• M3: 1,330,823 km (0.092 R)
• M4: 1,607,878 km (0.113 R)
• M5: 2,699,344 km (0.108 R)
• M6: 3,772,858 km (0.11 R)
• M7: 4,073,550 km (0.059 R)
• M8: 6,377,507 km (0.104 R)
• M9: 6,844,851 km (0.038 R)
• M10: 9,381,582 km (0.052 R)
• M11: 10,089,030 km (0.06 R)
• M12: 10,508,951 km (0.088 R)
• M13: 11,723,985 km (0.12 R)
• M14: 15,997,847 km (0.079 R)
• M15: 16,424,799 km (0.117 R)
• M16: 30,053,763 km (0.055 R)
• M17: 31,807,798 km (0.12 R)
• M18: 34,683,518 km (0.03 R)
• M19: 38,104,971 km (0.118 R)
• M20: 39,508,349 km (0.119 R)
• M21: 41,211,072 km (0.093 R)
• M22: 44,342,305 km (0.027 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 449 - 13,814 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit