🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.63 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.26 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.3

Radius: 0.62

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.11 AU - 1.41 AU

Year: 416 Days

Day: 32.8 Hours

Environment

Temp: 175 °C

Axial Tilt: 37.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 86,043,359 km

• M1: 176,226 km (0.028 R)
• M2: 423,362 km (0.105 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.67

Radius: 1.48

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.56 AU - 1.84 AU

Year: 652 Days

Day: 47.9 Hours

Environment

Temp: 158 °C

Axial Tilt: 38.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.15

Radius: 1.06

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.61 AU - 2.13 AU

Year: 753 Days

Day: 41.4 Hours

Environment

Temp: 133 °C

Axial Tilt: 18.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.19

Radius: 1.77

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 2.78 AU - 4.24 AU

Year: 1935 Days

Day: 17.9 Hours

Environment

Temp: -46 °C

Axial Tilt: 49.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 6.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.26

Radius: 0.58

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 6.08 AU - 6.32 AU

Year: 4544 Days

Day: 47.1 Hours

Environment

Temp: -104 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 13.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 27.7

Radius: 13.4

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 11.58 AU - 14.98 AU

Year: 14244 Days

Day: 5.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 86,043,359 km

• M1: 166,802 km (0.079 R)
• M2: 686,355 km (0.043 R)
• M3: 1,549,385 km (0.075 R)
• M4: 2,177,696 km (0.072 R)
• M5: 3,105,502 km (0.091 R)
• M6: 3,585,412 km (0.11 R)
• M7: 4,562,885 km (0.056 R)
• M8: 5,210,943 km (0.058 R)
• M9: 5,788,540 km (0.118 R)
• M10: 7,162,746 km (0.106 R)
• M11: 8,918,127 km (0.066 R)
• M12: 11,269,357 km (0.089 R)
• M13: 13,585,431 km (0.091 R)
• M14: 15,228,764 km (0.094 R)
• M15: 16,572,303 km (0.114 R)
• M16: 18,446,465 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 16.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 773

Radius: 9.2

Gravity: 9.13 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 15.46 AU - 17.46 AU

Year: 19655 Days

Day: 6.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 86,043,359 km

• M1: 114,742 km (0.103 R)
• M2: 818,001 km (0.103 R)
• M3: 1,365,679 km (0.081 R)
• M4: 2,975,651 km (0.076 R)
• M5: 3,269,611 km (0.075 R)
• M6: 4,824,232 km (0.117 R)
• M7: 6,032,235 km (0.059 R)
• M8: 7,724,935 km (0.084 R)
• M9: 10,244,163 km (0.098 R)
• M10: 11,364,053 km (0.114 R)
• M11: 13,337,099 km (0.04 R)
• M12: 18,124,979 km (0.075 R)
• M13: 18,748,952 km (0.088 R)
• M14: 21,586,973 km (0.12 R)
• M15: 24,808,114 km (0.081 R)
• M16: 27,745,767 km (0.08 R)
• M17: 28,098,968 km (0.112 R)
• M18: 39,253,135 km (0.104 R)
• M19: 49,673,524 km (0.065 R)
• M20: 61,197,796 km (0.098 R)
• M21: 73,255,385 km (0.088 R)
• M22: 74,383,053 km (0.109 R)
• M23: 75,522,091 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 21.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 462.8

Radius: 5.9

Gravity: 13.3 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 20.56 AU - 22.36 AU

Year: 29260 Days

Day: 21.7 Hours

Environment

Temp: -179 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 86,043,359 km

• M1: 92,003 km (0.104 R)
• M2: 1,232,387 km (0.061 R)
• M3: 1,861,297 km (0.081 R)
• M4: 2,659,401 km (0.065 R)
• M5: 3,162,948 km (0.081 R)
• M6: 4,463,402 km (0.105 R)
• M7: 5,575,513 km (0.076 R)
• M8: 6,085,641 km (0.094 R)
• M9: 6,813,585 km (0.112 R)
• M10: 7,052,642 km (0.053 R)
• M11: 7,855,235 km (0.066 R)
• M12: 9,760,363 km (0.106 R)
• M13: 10,249,698 km (0.104 R)
• M14: 12,513,563 km (0.072 R)
• M15: 13,237,916 km (0.077 R)
• M16: 15,252,101 km (0.09 R)
• M17: 16,078,330 km (0.074 R)
• M18: 16,417,020 km (0.093 R)
• M19: 17,550,822 km (0.091 R)
• M20: 19,300,369 km (0.068 R)
• M21: 19,683,041 km (0.092 R)
• M22: 21,672,393 km (0.115 R)
• M23: 25,699,119 km (0.11 R)
• M24: 27,344,247 km (0.052 R)
• M25: 34,488,443 km (0.113 R)
• M26: 37,514,957 km (0.113 R)
• M27: 41,819,337 km (0.093 R)
• M28: 47,128,416 km (0.1 R)
• M29: 47,996,682 km (0.09 R)
• M30: 56,684,877 km (0.102 R)
• M31: 59,663,820 km (0.09 R)
• M32: 61,913,622 km (0.042 R)
• M33: 68,556,964 km (0.091 R)
• M34: 71,023,833 km (0.059 R)
• M35: 72,394,150 km (0.106 R)
• M36: 74,951,824 km (0.118 R)

Kuiper Belt

Range: 37.2 - 61.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 200 - 14,446 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit