🌌 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: 0.25

Radius: 0.57

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.4 AU - 0.64 AU

Year: 142 Days

Day: 34.2 Hours

Environment

Temp: 140 °C

Axial Tilt: 11 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 40,758,688 km

• M1: 13,464 km (0.071 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.42

Radius: 1.15

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.96 AU - 1.14 AU

Year: 408 Days

Day: 39.4 Hours

Environment

Temp: 10 °C

Axial Tilt: 49 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 40,758,688 km

• M1: 32,164 km (0.119 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.53

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.54 AU - 1.62 AU

Year: 752 Days

Day: 15.7 Hours

Environment

Temp: -56 °C

Axial Tilt: 22.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.54 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291

Radius: 12.7

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 4.6 AU - 6.38 AU

Year: 4872 Days

Day: 6.7 Hours

Environment

Temp: -143 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,758,688 km

• M1: 175,777 km (0.12 R)
• M2: 608,714 km (0.084 R)
• M3: 1,618,649 km (0.065 R)
• M4: 3,763,733 km (0.05 R)
• M5: 4,847,719 km (0.053 R)
• M6: 7,530,458 km (0.102 R)
• M7: 10,075,566 km (0.088 R)
• M8: 11,079,966 km (0.115 R)
• M9: 11,585,308 km (0.106 R)
• M10: 13,381,679 km (0.067 R)
• M11: 14,003,707 km (0.04 R)
• M12: 16,741,498 km (0.111 R)
• M13: 17,295,459 km (0.108 R)
• M14: 20,564,023 km (0.061 R)
• M15: 21,135,486 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.7

Radius: 9.1

Gravity: 7.85 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 5.15 AU - 7.11 AU

Year: 5748 Days

Day: 11 Hours

Environment

Temp: -166 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 40,758,688 km

• M1: 113,246 km (0.095 R)
• M2: 1,837,959 km (0.111 R)
• M3: 2,465,822 km (0.072 R)
• M4: 3,375,377 km (0.054 R)
• M5: 3,679,060 km (0.085 R)
• M6: 3,977,359 km (0.088 R)
• M7: 4,519,202 km (0.073 R)
• M8: 6,378,404 km (0.095 R)
• M9: 7,156,463 km (0.097 R)
• M10: 8,578,839 km (0.098 R)
• M11: 9,526,243 km (0.047 R)
• M12: 11,579,174 km (0.105 R)
• M13: 12,223,343 km (0.078 R)
• M14: 13,583,337 km (0.037 R)
• M15: 13,910,956 km (0.096 R)
• M16: 14,810,488 km (0.099 R)
• M17: 16,049,458 km (0.052 R)
• M18: 16,415,823 km (0.088 R)
• M19: 17,742,008 km (0.088 R)
• M20: 18,068,132 km (0.056 R)
• M21: 18,866,984 km (0.118 R)
• M22: 23,063,504 km (0.085 R)
• M23: 24,482,739 km (0.068 R)
• M24: 28,284,021 km (0.1 R)
• M25: 29,725,396 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926.8

Radius: 12.5

Gravity: 5.93 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 7.3 AU - 8.88 AU

Year: 8715 Days

Day: 8.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 40,758,688 km

• M1: 155,432 km (0.089 R)
• M2: 576,999 km (0.077 R)
• M3: 1,042,548 km (0.093 R)
• M4: 1,536,969 km (0.093 R)
• M5: 2,697,998 km (0.058 R)
• M6: 4,069,660 km (0.092 R)
• M7: 5,421,277 km (0.093 R)
• M8: 6,038,817 km (0.105 R)
• M9: 6,856,968 km (0.11 R)
• M10: 9,709,500 km (0.114 R)
• M11: 16,693,178 km (0.114 R)
• M12: 17,705,357 km (0.094 R)
• M13: 18,453,197 km (0.12 R)
• M14: 23,927,282 km (0.109 R)
• M15: 24,564,868 km (0.118 R)
• M16: 26,545,544 km (0.036 R)
• M17: 27,525,260 km (0.105 R)
• M18: 28,124,699 km (0.102 R)
• M19: 28,630,639 km (0.09 R)
• M20: 32,677,710 km (0.115 R)
• M21: 33,349,704 km (0.108 R)
• M22: 40,973,810 km (0.041 R)
• M23: 46,514,316 km (0.059 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 361.5

Radius: 14.9

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 7.25 AU - 11.41 AU

Year: 10794 Days

Day: 11.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 40,758,688 km

• M1: 299,046 km (0.111 R)
• M2: 834,607 km (0.062 R)
• M3: 1,313,918 km (0.116 R)
• M4: 2,394,164 km (0.11 R)
• M5: 4,032,411 km (0.108 R)
• M6: 4,561,089 km (0.097 R)
• M7: 5,441,772 km (0.058 R)
• M8: 7,858,526 km (0.118 R)
• M9: 8,818,346 km (0.102 R)
• M10: 11,072,636 km (0.082 R)
• M11: 13,398,434 km (0.115 R)
• M12: 16,295,546 km (0.105 R)
• M13: 17,165,608 km (0.037 R)
• M14: 20,648,844 km (0.035 R)
• M15: 22,638,047 km (0.066 R)
• M16: 23,891,378 km (0.085 R)
• M17: 32,820,726 km (0.07 R)
• M18: 34,317,004 km (0.096 R)
• M19: 40,394,567 km (0.092 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 227 - 19,284 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit