🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.58 AU - 0.82 AU

Year: 212 Days

Day: 34.2 Hours

Environment

Temp: 211 °C

Axial Tilt: 34.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.65

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1 AU - 1.38 AU

Year: 469 Days

Day: 32.3 Hours

Environment

Temp: 11 °C

Axial Tilt: 32.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 54,181,118 km

• M1: 106,962 km (0.065 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.09

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 2.33 AU - 3.23 AU

Year: 1676 Days

Day: 32.9 Hours

Environment

Temp: -90 °C

Axial Tilt: 11.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.71

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 3 AU - 3.92 AU

Year: 2328 Days

Day: 20.3 Hours

Environment

Temp: -111 °C

Axial Tilt: 18.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.48 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 7.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.5

Radius: 14.6

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 6.77 AU - 8.23 AU

Year: 7428 Days

Day: 5.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 54,181,118 km

• M1: 182,061 km (0.072 R)
• M2: 736,620 km (0.085 R)
• M3: 1,644,380 km (0.11 R)
• M4: 2,355,119 km (0.085 R)
• M5: 3,049,253 km (0.099 R)
• M6: 3,562,075 km (0.071 R)
• M7: 4,509,478 km (0.109 R)
• M8: 5,210,045 km (0.083 R)
• M9: 10,992,601 km (0.103 R)
• M10: 13,693,291 km (0.114 R)
• M11: 14,663,882 km (0.086 R)
• M12: 19,987,921 km (0.039 R)
• M13: 21,637,686 km (0.052 R)
• M14: 24,498,746 km (0.067 R)
• M15: 25,656,484 km (0.055 R)
• M16: 29,250,273 km (0.108 R)
• M17: 32,739,045 km (0.113 R)
• M18: 37,654,083 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 471.8

Radius: 9.1

Gravity: 5.7 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 7.68 AU - 9.44 AU

Year: 9057 Days

Day: 9.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 54,181,118 km

• M1: 116,537 km (0.058 R)
• M2: 1,097,001 km (0.079 R)
• M3: 2,896,664 km (0.104 R)
• M4: 4,537,902 km (0.118 R)
• M5: 5,111,909 km (0.096 R)
• M6: 8,648,103 km (0.115 R)
• M7: 9,484,954 km (0.117 R)
• M8: 9,899,639 km (0.116 R)
• M9: 10,422,932 km (0.12 R)
• M10: 11,733,410 km (0.11 R)
• M11: 14,077,010 km (0.113 R)
• M12: 14,375,458 km (0.1 R)
• M13: 15,931,126 km (0.106 R)
• M14: 16,451,876 km (0.113 R)
• M15: 17,118,634 km (0.056 R)
• M16: 18,082,343 km (0.038 R)
• M17: 18,649,020 km (0.105 R)
• M18: 18,936,697 km (0.027 R)
• M19: 21,740,759 km (0.085 R)
• M20: 22,139,737 km (0.099 R)
• M21: 22,543,651 km (0.086 R)
• M22: 23,117,359 km (0.114 R)
• M23: 23,616,866 km (0.118 R)
• M24: 24,293,946 km (0.118 R)
• M25: 25,333,801 km (0.083 R)
• M26: 26,493,633 km (0.05 R)
• M27: 29,498,606 km (0.066 R)
• M28: 32,308,203 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.9

Radius: 14.1

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 8.84 AU - 9.54 AU

Year: 10075 Days

Day: 5.5 Hours

Environment

Temp: -171 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 54,181,118 km

• M1: 175,478 km (0.084 R)
• M2: 866,920 km (0.112 R)
• M3: 1,451,847 km (0.093 R)
• M4: 2,753,498 km (0.071 R)
• M5: 3,551,005 km (0.103 R)
• M6: 4,084,321 km (0.109 R)
• M7: 4,555,106 km (0.085 R)
• M8: 6,050,187 km (0.104 R)
• M9: 6,739,982 km (0.087 R)
• M10: 7,441,447 km (0.092 R)
• M11: 8,763,443 km (0.074 R)
• M12: 9,315,310 km (0.084 R)
• M13: 9,841,595 km (0.071 R)
• M14: 11,814,492 km (0.119 R)
• M15: 12,546,325 km (0.087 R)
• M16: 13,070,665 km (0.12 R)
• M17: 15,184,782 km (0.089 R)
• M18: 22,886,380 km (0.097 R)
• M19: 24,024,670 km (0.088 R)
• M20: 24,562,624 km (0.074 R)
• M21: 25,384,515 km (0.074 R)
• M22: 27,960,889 km (0.104 R)
• M23: 29,669,746 km (0.106 R)
• M24: 33,851,904 km (0.108 R)
• M25: 35,792,039 km (0.079 R)
• M26: 41,927,496 km (0.083 R)
• M27: 45,789,365 km (0.062 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.9

Radius: 8.3

Gravity: 6.73 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 10.15 AU - 13.39 AU

Year: 14603 Days

Day: 12.7 Hours

Environment

Temp: -182 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 54,181,118 km

• M1: 119,529 km (0.053 R)
• M2: 679,025 km (0.081 R)
• M3: 1,031,926 km (0.12 R)
• M4: 1,341,893 km (0.078 R)
• M5: 1,858,754 km (0.074 R)
• M6: 2,118,156 km (0.119 R)
• M7: 2,401,943 km (0.095 R)
• M8: 4,225,242 km (0.117 R)
• M9: 6,822,411 km (0.039 R)
• M10: 7,532,851 km (0.119 R)
• M11: 10,277,075 km (0.107 R)
• M12: 11,667,587 km (0.111 R)
• M13: 17,791,226 km (0.035 R)
• M14: 19,704,732 km (0.12 R)
• M15: 22,016,917 km (0.11 R)
• M16: 23,376,612 km (0.096 R)
• M17: 34,260,306 km (0.111 R)
• M18: 45,739,998 km (0.101 R)
• M19: 46,468,240 km (0.104 R)

Kuiper Belt

Range: 30.3 - 56.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 293 - 13,612 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit