🌌 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: 0.81

Radius: 0.92

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.6 AU - 0.82 AU

Year: 176 Days

Day: 39.2 Hours

Environment

Temp: 341 °C

Axial Tilt: 31.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 83,509,851 km

• M1: 23,038 km (0.119 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.25

Radius: 0.57

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.74 AU - 0.78 AU

Year: 194 Days

Day: 28.9 Hours

Environment

Temp: 307 °C

Axial Tilt: 1.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.16

Radius: 0.48

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.77 AU - 0.79 AU

Year: 202 Days

Day: 24.1 Hours

Environment

Temp: 323 °C

Axial Tilt: 178.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.8

Radius: 1.51

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.89 AU - 1.15 AU

Year: 302 Days

Day: 33.9 Hours

Environment

Temp: 268 °C

Axial Tilt: 29.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 5 - Terrestrial

Semi-Major Axis: 2.67 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.54

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.03 AU - 3.31 AU

Year: 1280 Days

Day: 15.7 Hours

Environment

Temp: 5 °C

Axial Tilt: 4.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 2.91 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.79

Radius: 1.26

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 2.85 AU - 2.97 AU

Year: 1456 Days

Day: 40.7 Hours

Environment

Temp: -2 °C

Axial Tilt: 18.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 7 - Terrestrial

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.64

Radius: 0.84

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 3.4 AU - 4.14 AU

Year: 2148 Days

Day: 20.4 Hours

Environment

Temp: -43 °C

Axial Tilt: 35 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 10.15 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 16.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 169.3

Radius: 12.2

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 16.14 AU - 16.9 AU

Year: 19699 Days

Day: 11.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 160.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 83,509,851 km

• M1: 151,842 km (0.056 R)
• M2: 613,501 km (0.088 R)
• M3: 999,164 km (0.077 R)
• M4: 4,798,053 km (0.092 R)
• M5: 5,460,921 km (0.099 R)
• M6: 8,119,873 km (0.032 R)
• M7: 8,605,019 km (0.04 R)
• M8: 9,203,111 km (0.056 R)
• M9: 10,026,947 km (0.104 R)
• M10: 12,972,379 km (0.08 R)
• M11: 20,999,053 km (0.111 R)
• M12: 23,206,669 km (0.116 R)
• M13: 23,648,282 km (0.099 R)
• M14: 33,931,340 km (0.101 R)
• M15: 35,308,389 km (0.075 R)
• M16: 37,322,425 km (0.046 R)
• M17: 38,419,276 km (0.086 R)
• M18: 42,493,425 km (0.117 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 154

Radius: 5.5

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 15.61 AU - 19.83 AU

Year: 21884 Days

Day: 16.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 83,509,851 km

• M1: 68,516 km (0.104 R)
• M2: 292,763 km (0.098 R)
• M3: 478,863 km (0.092 R)
• M4: 853,456 km (0.097 R)
• M5: 2,244,716 km (0.118 R)
• M6: 3,781,535 km (0.117 R)
• M7: 4,509,179 km (0.046 R)
• M8: 5,734,834 km (0.098 R)
• M9: 6,386,632 km (0.06 R)
• M10: 7,046,359 km (0.097 R)
• M11: 9,106,022 km (0.058 R)
• M12: 11,535,641 km (0.083 R)
• M13: 13,541,150 km (0.051 R)
• M14: 14,691,708 km (0.05 R)
• M15: 15,290,847 km (0.089 R)
• M16: 18,455,889 km (0.086 R)
• M17: 19,948,278 km (0.105 R)
• M18: 23,260,075 km (0.05 R)
• M19: 23,439,144 km (0.093 R)
• M20: 28,221,190 km (0.046 R)
• M21: 29,145,854 km (0.079 R)
• M22: 32,373,877 km (0.106 R)
• M23: 33,273,259 km (0.034 R)
• M24: 46,952,638 km (0.098 R)

Planet 10 - Ice Giant

Semi-Major Axis: 23.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 328.9

Radius: 7.2

Gravity: 6.34 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 17.99 AU - 28.79 AU

Year: 33187 Days

Day: 17.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 83,509,851 km

• M1: 93,050 km (0.113 R)
• M2: 388,356 km (0.067 R)
• M3: 737,069 km (0.06 R)
• M4: 1,014,573 km (0.069 R)
• M5: 1,286,542 km (0.09 R)
• M6: 1,607,130 km (0.071 R)
• M7: 2,000,423 km (0.112 R)
• M8: 2,550,793 km (0.084 R)
• M9: 3,485,331 km (0.081 R)
• M10: 4,813,012 km (0.06 R)
• M11: 8,695,376 km (0.119 R)
• M12: 10,207,362 km (0.116 R)
• M13: 10,961,186 km (0.099 R)
• M14: 13,007,535 km (0.1 R)
• M15: 14,661,190 km (0.056 R)
• M16: 17,048,622 km (0.081 R)
• M17: 19,211,209 km (0.099 R)
• M18: 21,855,351 km (0.096 R)
• M19: 22,683,076 km (0.057 R)
• M20: 26,551,677 km (0.102 R)
• M21: 28,458,153 km (0.089 R)
• M22: 32,675,017 km (0.096 R)
• M23: 36,420,649 km (0.077 R)
• M24: 38,620,485 km (0.098 R)
• M25: 39,373,112 km (0.102 R)
• M26: 46,084,821 km (0.093 R)
• M27: 54,455,719 km (0.113 R)
• M28: 55,592,364 km (0.114 R)
• M29: 60,296,768 km (0.114 R)
• M30: 63,576,402 km (0.082 R)
• M31: 65,898,909 km (0.089 R)
• M32: 67,189,191 km (0.112 R)
• M33: 76,696,884 km (0.094 R)
• M34: 76,933,547 km (0.11 R)

Kuiper Belt

Range: 37.4 - 60.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 346 - 20,281 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit