🌌 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: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.62

Radius: 0.83

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.49 AU - 0.53 AU

Year: 127 Days

Day: 44 Hours

Environment

Temp: 276 °C

Axial Tilt: 36.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 91,867,320 km

• M1: 24,983 km (0.11 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.44

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.83 AU - 0.99 AU

Year: 302 Days

Day: 23.7 Hours

Environment

Temp: 112 °C

Axial Tilt: 29.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.55 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.21

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 1.23 AU - 1.87 AU

Year: 672 Days

Day: 18.4 Hours

Environment

Temp: 4 °C

Axial Tilt: 115.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.26

Radius: 0.58

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.41 AU - 2.01 AU

Year: 779 Days

Day: 32.1 Hours

Environment

Temp: -36 °C

Axial Tilt: 119.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.48

Radius: 1.17

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.74 AU - 2.36 AU

Year: 1022 Days

Day: 39 Hours

Environment

Temp: -47 °C

Axial Tilt: 24.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.88 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 7.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 369.1

Radius: 13

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 5.93 AU - 9.49 AU

Year: 7455 Days

Day: 10.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 91,867,320 km

• M1: 161,715 km (0.043 R)
• M2: 642,523 km (0.108 R)
• M3: 1,049,279 km (0.074 R)
• M4: 1,844,392 km (0.107 R)
• M5: 2,842,808 km (0.113 R)
• M6: 3,411,430 km (0.117 R)
• M7: 3,892,686 km (0.065 R)
• M8: 5,705,513 km (0.049 R)
• M9: 6,549,844 km (0.05 R)
• M10: 7,475,705 km (0.095 R)
• M11: 8,102,370 km (0.087 R)
• M12: 8,723,949 km (0.038 R)
• M13: 9,931,503 km (0.059 R)
• M14: 10,553,083 km (0.032 R)
• M15: 12,987,190 km (0.115 R)
• M16: 13,515,719 km (0.115 R)
• M17: 15,362,205 km (0.094 R)
• M18: 16,194,418 km (0.102 R)
• M19: 18,013,678 km (0.09 R)
• M20: 20,175,367 km (0.03 R)
• M21: 20,885,060 km (0.067 R)
• M22: 21,464,751 km (0.103 R)
• M23: 22,129,564 km (0.099 R)
• M24: 22,732,144 km (0.11 R)
• M25: 24,127,893 km (0.03 R)
• M26: 24,927,493 km (0.101 R)
• M27: 25,333,951 km (0.087 R)
• M28: 29,373,841 km (0.113 R)
• M29: 30,655,745 km (0.054 R)
• M30: 31,499,328 km (0.105 R)
• M31: 31,974,600 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687.8

Radius: 12.9

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 10.41 AU - 12.17 AU

Year: 13211 Days

Day: 14.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 91,867,320 km

• M1: 160,519 km (0.035 R)
• M2: 765,792 km (0.067 R)
• M3: 1,173,296 km (0.075 R)
• M4: 1,580,502 km (0.117 R)
• M5: 2,782,520 km (0.107 R)
• M6: 3,552,650 km (0.116 R)
• M7: 5,136,742 km (0.118 R)
• M8: 5,806,492 km (0.086 R)
• M9: 6,653,964 km (0.085 R)
• M10: 7,626,499 km (0.083 R)
• M11: 9,540,754 km (0.081 R)
• M12: 11,230,911 km (0.106 R)
• M13: 15,338,419 km (0.069 R)
• M14: 18,683,428 km (0.111 R)
• M15: 19,174,408 km (0.078 R)
• M16: 22,486,954 km (0.105 R)
• M17: 36,943,643 km (0.097 R)
• M18: 47,266,195 km (0.04 R)
• M19: 50,987,592 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 555.7

Radius: 6.6

Gravity: 12.76 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 18.09 AU - 20.45 AU

Year: 29459 Days

Day: 24.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 91,867,320 km

• M1: 82,129 km (0.119 R)
• M2: 318,045 km (0.068 R)
• M3: 773,122 km (0.073 R)
• M4: 1,019,958 km (0.109 R)
• M5: 1,658,292 km (0.095 R)
• M6: 5,781,808 km (0.117 R)
• M7: 7,177,855 km (0.096 R)
• M8: 8,007,824 km (0.085 R)
• M9: 9,795,070 km (0.074 R)
• M10: 10,424,279 km (0.094 R)
• M11: 13,287,881 km (0.087 R)
• M12: 13,746,848 km (0.11 R)
• M13: 15,520,031 km (0.109 R)
• M14: 19,416,158 km (0.078 R)
• M15: 20,915,577 km (0.088 R)
• M16: 21,328,168 km (0.086 R)
• M17: 21,641,127 km (0.095 R)
• M18: 27,687,724 km (0.086 R)
• M19: 30,497,321 km (0.066 R)
• M20: 43,138,341 km (0.095 R)
• M21: 47,784,552 km (0.101 R)
• M22: 53,134,770 km (0.098 R)
• M23: 53,517,890 km (0.036 R)
• M24: 55,854,908 km (0.101 R)
• M25: 56,251,043 km (0.095 R)
• M26: 70,164,842 km (0.077 R)
• M27: 70,395,223 km (0.11 R)
• M28: 72,255,622 km (0.085 R)
• M29: 75,831,909 km (0.082 R)
• M30: 82,307,103 km (0.092 R)

Kuiper Belt

Range: 31.5 - 50.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 172 - 18,916 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit