🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.29

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.5 AU - 0.72 AU

Year: 308 Days

Day: 12.4 Hours

Environment

Temp: -133 °C

Axial Tilt: 36 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 26,381,377 km

• M1: 37,699 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 537

Radius: 14.2

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.74 AU - 1.06 AU

Year: 551 Days

Day: 9.3 Hours

Environment

Temp: -154 °C

Axial Tilt: 48.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 26,381,377 km

• M1: 176,675 km (0.089 R)
• M2: 624,721 km (0.026 R)
• M3: 1,263,952 km (0.034 R)
• M4: 1,942,080 km (0.082 R)
• M5: 2,658,653 km (0.101 R)
• M6: 3,571,500 km (0.099 R)
• M7: 5,805,744 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.1

Radius: 14.2

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.8 AU - 1.02 AU

Year: 561 Days

Day: 5.8 Hours

Environment

Temp: -162 °C

Axial Tilt: 68.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 26,381,377 km

• M1: 176,525 km (0.042 R)
• M2: 622,028 km (0.096 R)
• M3: 1,114,504 km (0.041 R)
• M4: 1,827,488 km (0.092 R)
• M5: 2,347,490 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.5

Radius: 14.7

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.2 AU - 1.44 AU

Year: 979 Days

Day: 9 Hours

Environment

Temp: -167 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 26,381,377 km

• M1: 182,809 km (0.112 R)
• M2: 949,498 km (0.12 R)
• M3: 1,474,437 km (0.066 R)
• M4: 2,325,798 km (0.089 R)
• M5: 2,845,651 km (0.025 R)
• M6: 3,314,640 km (0.044 R)
• M7: 3,882,663 km (0.042 R)
• M8: 4,359,731 km (0.066 R)
• M9: 4,820,791 km (0.084 R)
• M10: 5,635,352 km (0.049 R)
• M11: 6,792,342 km (0.114 R)
• M12: 7,715,660 km (0.114 R)
• M13: 9,842,194 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 203.1

Radius: 9.2

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.38 AU - 2.58 AU

Year: 2522 Days

Day: 14 Hours

Environment

Temp: -203 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 26,381,377 km

• M1: 123,269 km (0.096 R)
• M2: 505,790 km (0.092 R)
• M3: 847,173 km (0.101 R)
• M4: 1,556,865 km (0.11 R)
• M5: 2,346,742 km (0.111 R)
• M6: 4,340,433 km (0.115 R)
• M7: 5,300,253 km (0.102 R)
• M8: 6,324,400 km (0.085 R)
• M9: 7,136,566 km (0.095 R)
• M10: 7,528,064 km (0.079 R)
• M11: 7,933,773 km (0.094 R)
• M12: 8,584,375 km (0.116 R)
• M13: 9,087,622 km (0.103 R)
• M14: 10,548,744 km (0.105 R)
• M15: 11,617,771 km (0.099 R)
• M16: 12,419,316 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.7

Radius: 12.4

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 2.38 AU - 2.98 AU

Year: 2833 Days

Day: 14.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 26,381,377 km

• M1: 154,385 km (0.113 R)
• M2: 662,569 km (0.093 R)
• M3: 1,359,097 km (0.111 R)
• M4: 2,191,310 km (0.092 R)
• M5: 2,609,735 km (0.088 R)
• M6: 3,032,050 km (0.109 R)
• M7: 4,346,267 km (0.055 R)
• M8: 5,131,805 km (0.079 R)
• M9: 7,776,397 km (0.12 R)
• M10: 8,424,754 km (0.025 R)
• M11: 9,285,689 km (0.101 R)
• M12: 12,179,511 km (0.089 R)
• M13: 13,599,793 km (0.108 R)
• M14: 15,678,605 km (0.097 R)
• M15: 19,037,376 km (0.027 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 276

Radius: 14.6

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 3.79 AU - 5.47 AU

Year: 6433 Days

Day: 9.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 26,381,377 km

• M1: 181,612 km (0.114 R)
• M2: 685,906 km (0.033 R)
• M3: 1,519,466 km (0.086 R)
• M4: 2,040,665 km (0.104 R)
• M5: 2,505,914 km (0.05 R)
• M6: 3,042,970 km (0.099 R)
• M7: 4,104,218 km (0.116 R)
• M8: 6,639,602 km (0.116 R)
• M9: 7,277,488 km (0.118 R)
• M10: 7,782,530 km (0.094 R)
• M11: 10,165,774 km (0.035 R)
• M12: 13,445,557 km (0.114 R)
• M13: 13,900,036 km (0.114 R)
• M14: 14,364,687 km (0.069 R)
• M15: 15,379,858 km (0.116 R)
• M16: 16,158,216 km (0.094 R)
• M17: 17,021,096 km (0.092 R)
• M18: 17,553,515 km (0.082 R)
• M19: 20,384,056 km (0.09 R)
• M20: 21,119,928 km (0.116 R)
• M21: 22,291,878 km (0.106 R)
• M22: 23,289,097 km (0.109 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 169 - 11,677 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit