🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.68 AU - 0.94 AU

Year: 268 Days

Day: 21.2 Hours

Environment

Temp: 121 °C

Axial Tilt: 20.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 65,502,085 km

• M1: 119,977 km (0.044 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.11

Radius: 0.41

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.89 AU - 1.05 AU

Year: 351 Days

Day: 14.7 Hours

Environment

Temp: 45 °C

Axial Tilt: 7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 65,502,085 km

• M1: 9,574 km (0.101 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.06

Radius: 1.02

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 1.1 AU - 1.52 AU

Year: 550 Days

Day: 33.6 Hours

Environment

Temp: -20 °C

Axial Tilt: 35.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.21

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.45 AU - 1.59 AU

Year: 688 Days

Day: 43.8 Hours

Environment

Temp: -29 °C

Axial Tilt: 1.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.4

Radius: 1.14

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.48 AU - 1.86 AU

Year: 792 Days

Day: 24 Hours

Environment

Temp: -44 °C

Axial Tilt: 12.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,502,085 km

• M1: 45,627 km (0.101 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.49

Radius: 1.17

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.43 AU - 2.01 AU

Year: 828 Days

Day: 39.7 Hours

Environment

Temp: -47 °C

Axial Tilt: 34.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 7.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.3

Radius: 12

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 7.12 AU - 8.16 AU

Year: 7752 Days

Day: 8.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 65,502,085 km

• M1: 149,448 km (0.071 R)
• M2: 560,842 km (0.067 R)
• M3: 984,354 km (0.108 R)
• M4: 1,369,569 km (0.089 R)
• M5: 1,909,318 km (0.106 R)
• M6: 2,540,621 km (0.088 R)
• M7: 3,066,008 km (0.047 R)
• M8: 4,618,834 km (0.077 R)
• M9: 5,988,403 km (0.099 R)
• M10: 6,490,304 km (0.06 R)
• M11: 6,956,451 km (0.106 R)
• M12: 7,411,527 km (0.096 R)
• M13: 8,526,929 km (0.074 R)
• M14: 10,616,063 km (0.084 R)
• M15: 12,357,233 km (0.088 R)
• M16: 13,320,494 km (0.102 R)
• M17: 18,653,957 km (0.095 R)
• M18: 23,773,495 km (0.082 R)
• M19: 25,110,451 km (0.092 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319.2

Radius: 13.3

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 7.79 AU - 9.39 AU

Year: 9242 Days

Day: 5.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 65,502,085 km

• M1: 165,455 km (0.109 R)
• M2: 581,337 km (0.063 R)
• M3: 1,200,822 km (0.1 R)
• M4: 2,001,320 km (0.054 R)
• M5: 2,513,992 km (0.039 R)
• M6: 2,936,157 km (0.118 R)
• M7: 4,930,895 km (0.113 R)
• M8: 5,539,310 km (0.108 R)
• M9: 6,427,921 km (0.107 R)
• M10: 7,594,934 km (0.109 R)
• M11: 8,170,138 km (0.083 R)
• M12: 10,346,638 km (0.1 R)
• M13: 11,794,446 km (0.117 R)
• M14: 13,483,406 km (0.081 R)
• M15: 14,328,484 km (0.059 R)
• M16: 16,249,171 km (0.053 R)
• M17: 18,268,294 km (0.08 R)
• M18: 23,514,242 km (0.096 R)
• M19: 24,080,470 km (0.105 R)
• M20: 24,905,054 km (0.119 R)
• M21: 25,578,244 km (0.061 R)
• M22: 26,177,084 km (0.043 R)
• M23: 27,048,941 km (0.094 R)
• M24: 31,603,448 km (0.084 R)
• M25: 32,293,244 km (0.099 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 345

Radius: 7.9

Gravity: 5.53 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 13.93 AU - 17.17 AU

Year: 22510 Days

Day: 22.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 65,502,085 km

• M1: 119,678 km (0.036 R)
• M2: 519,105 km (0.035 R)
• M3: 957,875 km (0.066 R)
• M4: 2,009,249 km (0.078 R)
• M5: 4,639,030 km (0.104 R)
• M6: 8,127,503 km (0.118 R)
• M7: 8,876,539 km (0.083 R)
• M8: 9,508,441 km (0.096 R)
• M9: 10,685,776 km (0.097 R)
• M10: 15,685,786 km (0.065 R)
• M11: 19,506,216 km (0.042 R)
• M12: 21,120,227 km (0.117 R)
• M13: 30,425,065 km (0.038 R)
• M14: 44,973,757 km (0.109 R)
• M15: 46,517,458 km (0.119 R)
• M16: 47,302,398 km (0.099 R)
• M17: 55,820,501 km (0.114 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 205 - 12,146 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit