🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.45

Radius: 0.73

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.55 AU - 0.79 AU

Year: 349 Days

Day: 36.8 Hours

Environment

Temp: -127 °C

Axial Tilt: 8.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 286.2

Radius: 8.5

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.64 AU - 0.72 AU

Year: 357 Days

Day: 13.5 Hours

Environment

Temp: -139 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 33,143,245 km

• M1: 105,766 km (0.118 R)
• M2: 591,959 km (0.076 R)
• M3: 897,138 km (0.1 R)
• M4: 1,196,185 km (0.118 R)
• M5: 1,705,117 km (0.107 R)
• M6: 2,465,822 km (0.082 R)
• M7: 2,840,116 km (0.106 R)
• M8: 3,113,730 km (0.087 R)
• M9: 3,467,379 km (0.03 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 224.7

Radius: 8.3

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.76 AU - 0.84 AU

Year: 455 Days

Day: 10.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 44.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,143,245 km

• M1: 103,223 km (0.074 R)
• M2: 384,467 km (0.095 R)
• M3: 775,815 km (0.1 R)
• M4: 1,165,517 km (0.082 R)
• M5: 1,728,454 km (0.095 R)
• M6: 2,176,051 km (0.116 R)
• M7: 2,942,291 km (0.116 R)
• M8: 3,377,022 km (0.073 R)
• M9: 3,796,345 km (0.111 R)
• M10: 4,054,701 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.4

Radius: 11.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.79 AU - 1.13 AU

Year: 598 Days

Day: 12.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 33,143,245 km

• M1: 145,559 km (0.101 R)
• M2: 601,533 km (0.069 R)
• M3: 1,170,005 km (0.068 R)
• M4: 1,577,958 km (0.084 R)
• M5: 2,424,533 km (0.053 R)
• M6: 2,833,832 km (0.09 R)
• M7: 3,518,692 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 710.6

Radius: 12.3

Gravity: 4.7 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.02 AU - 1.18 AU

Year: 734 Days

Day: 13.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,143,245 km

• M1: 153,039 km (0.117 R)
• M2: 629,508 km (0.083 R)
• M3: 1,059,153 km (0.078 R)
• M4: 1,549,684 km (0.105 R)
• M5: 1,938,489 km (0.118 R)
• M6: 2,393,566 km (0.098 R)
• M7: 2,836,675 km (0.094 R)
• M8: 4,254,115 km (0.09 R)
• M9: 5,119,688 km (0.095 R)
• M10: 5,594,661 km (0.108 R)
• M11: 7,266,717 km (0.096 R)
• M12: 8,230,276 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 361.8

Radius: 11.6

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.01 AU - 1.39 AU

Year: 836 Days

Day: 10.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 33,143,245 km

• M1: 144,212 km (0.1 R)
• M2: 633,846 km (0.117 R)
• M3: 1,030,430 km (0.063 R)
• M4: 1,406,070 km (0.1 R)
• M5: 1,908,869 km (0.049 R)
• M6: 2,934,811 km (0.099 R)
• M7: 3,332,293 km (0.106 R)
• M8: 3,807,116 km (0.103 R)
• M9: 4,266,980 km (0.094 R)
• M10: 4,667,603 km (0.087 R)
• M11: 5,385,823 km (0.045 R)
• M12: 5,781,060 km (0.116 R)
• M13: 6,215,044 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 702.8

Radius: 9

Gravity: 8.68 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.23 AU - 1.61 AU

Year: 1076 Days

Day: 14 Hours

Environment

Temp: -179 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,143,245 km

• M1: 112,198 km (0.113 R)
• M2: 544,835 km (0.093 R)
• M3: 1,072,168 km (0.061 R)
• M4: 1,922,632 km (0.101 R)
• M5: 2,290,044 km (0.114 R)
• M6: 3,575,838 km (0.119 R)
• M7: 4,882,276 km (0.109 R)
• M8: 6,900,950 km (0.113 R)
• M9: 8,734,272 km (0.102 R)
• M10: 9,899,340 km (0.055 R)

Asteroid Belt

Center: 3.49 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.9

Radius: 10.7

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 5.07 AU - 6.05 AU

Year: 8336 Days

Day: 11.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 33,143,245 km

• M1: 133,441 km (0.068 R)
• M2: 484,548 km (0.103 R)
• M3: 1,145,321 km (0.11 R)
• M4: 2,667,180 km (0.079 R)
• M5: 4,040,489 km (0.085 R)
• M6: 5,418,136 km (0.039 R)
• M7: 5,992,442 km (0.088 R)
• M8: 7,370,687 km (0.051 R)
• M9: 8,308,815 km (0.119 R)
• M10: 9,884,530 km (0.066 R)
• M11: 10,883,245 km (0.092 R)
• M12: 11,504,226 km (0.108 R)
• M13: 11,897,967 km (0.081 R)
• M14: 12,505,484 km (0.061 R)
• M15: 14,853,722 km (0.106 R)
• M16: 15,262,124 km (0.101 R)
• M17: 18,333,817 km (0.055 R)
• M18: 18,668,767 km (0.106 R)
• M19: 19,213,303 km (0.05 R)
• M20: 21,349,860 km (0.11 R)
• M21: 23,404,288 km (0.067 R)
• M22: 25,503,894 km (0.058 R)
• M23: 27,029,044 km (0.063 R)
• M24: 28,079,221 km (0.074 R)
• M25: 28,524,574 km (0.093 R)
• M26: 31,776,084 km (0.114 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 325 - 10,675 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit