🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.48 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 144.9

Radius: 10

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.92 AU - 1 AU

Year: 638 Days

Day: 11.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 37,122,737 km

• M1: 124,465 km (0.111 R)
• M2: 462,407 km (0.096 R)
• M3: 1,161,179 km (0.109 R)
• M4: 1,519,017 km (0.087 R)
• M5: 1,892,712 km (0.068 R)
• M6: 2,633,222 km (0.06 R)
• M7: 3,357,874 km (0.111 R)
• M8: 3,703,594 km (0.076 R)
• M9: 4,036,450 km (0.074 R)
• M10: 4,389,202 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 984.8

Radius: 11.4

Gravity: 7.58 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.93 AU - 1.17 AU

Year: 730 Days

Day: 9.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 37,122,737 km

• M1: 141,819 km (0.08 R)
• M2: 533,915 km (0.106 R)
• M3: 972,835 km (0.082 R)
• M4: 1,723,966 km (0.11 R)
• M5: 2,192,207 km (0.048 R)
• M6: 2,650,425 km (0.108 R)
• M7: 3,212,016 km (0.082 R)
• M8: 3,806,518 km (0.064 R)
• M9: 4,660,422 km (0.105 R)
• M10: 5,087,076 km (0.081 R)
• M11: 7,772,507 km (0.039 R)
• M12: 8,272,164 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 213.2

Radius: 10.8

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.82 AU - 1.98 AU

Year: 1776 Days

Day: 5.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 37,122,737 km

• M1: 134,339 km (0.118 R)
• M2: 498,311 km (0.092 R)
• M3: 1,032,973 km (0.101 R)
• M4: 1,847,534 km (0.101 R)
• M5: 2,388,779 km (0.101 R)
• M6: 3,744,734 km (0.054 R)
• M7: 4,123,965 km (0.079 R)
• M8: 4,904,865 km (0.11 R)
• M9: 5,478,274 km (0.08 R)
• M10: 5,989,749 km (0.103 R)
• M11: 6,759,281 km (0.091 R)
• M12: 8,126,007 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.2

Radius: 14.3

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.98 AU - 2.22 AU

Year: 2064 Days

Day: 5.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 37,122,737 km

• M1: 177,872 km (0.057 R)
• M2: 793,318 km (0.085 R)
• M3: 1,343,538 km (0.052 R)
• M4: 2,003,115 km (0.039 R)
• M5: 2,666,133 km (0.061 R)
• M6: 3,308,207 km (0.051 R)
• M7: 3,819,533 km (0.092 R)
• M8: 5,365,477 km (0.075 R)
• M9: 8,965,251 km (0.12 R)
• M10: 10,125,981 km (0.104 R)
• M11: 11,077,573 km (0.106 R)
• M12: 11,662,500 km (0.085 R)
• M13: 12,123,711 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652.5

Radius: 9.6

Gravity: 7.08 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 2.3 AU - 2.68 AU

Year: 2665 Days

Day: 11.4 Hours

Environment

Temp: -199 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 37,122,737 km

• M1: 119,828 km (0.097 R)
• M2: 536,458 km (0.09 R)
• M3: 855,700 km (0.044 R)
• M4: 1,253,181 km (0.102 R)
• M5: 1,739,374 km (0.06 R)
• M6: 2,173,657 km (0.101 R)
• M7: 2,502,473 km (0.085 R)
• M8: 3,771,362 km (0.067 R)
• M9: 4,106,162 km (0.042 R)
• M10: 4,503,793 km (0.118 R)
• M11: 5,066,281 km (0.087 R)
• M12: 5,524,500 km (0.082 R)
• M13: 6,169,267 km (0.092 R)
• M14: 7,214,806 km (0.055 R)
• M15: 8,017,399 km (0.1 R)
• M16: 9,509,488 km (0.055 R)
• M17: 9,946,762 km (0.11 R)
• M18: 11,178,551 km (0.048 R)
• M19: 11,956,610 km (0.047 R)
• M20: 15,532,597 km (0.115 R)
• M21: 16,293,901 km (0.06 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 945

Radius: 13.3

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 2.43 AU - 3.13 AU

Year: 3144 Days

Day: 14.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 100.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 37,122,737 km

• M1: 165,605 km (0.079 R)
• M2: 674,986 km (0.087 R)
• M3: 1,234,182 km (0.036 R)
• M4: 1,722,021 km (0.082 R)
• M5: 2,661,197 km (0.086 R)
• M6: 3,302,672 km (0.085 R)
• M7: 4,024,183 km (0.086 R)
• M8: 5,755,030 km (0.074 R)
• M9: 6,680,143 km (0.068 R)
• M10: 7,115,024 km (0.062 R)
• M11: 7,568,755 km (0.062 R)
• M12: 10,015,278 km (0.042 R)
• M13: 10,503,715 km (0.104 R)
• M14: 11,136,514 km (0.099 R)
• M15: 11,974,412 km (0.071 R)
• M16: 13,285,338 km (0.098 R)
• M17: 14,380,993 km (0.088 R)
• M18: 14,898,452 km (0.103 R)
• M19: 16,751,670 km (0.107 R)
• M20: 23,018,624 km (0.113 R)
• M21: 24,232,461 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 504.3

Radius: 8.1

Gravity: 7.69 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 2.38 AU - 3.7 AU

Year: 3595 Days

Day: 14.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 37,122,737 km

• M1: 100,679 km (0.038 R)
• M2: 376,239 km (0.101 R)
• M3: 654,191 km (0.065 R)
• M4: 987,496 km (0.118 R)
• M5: 1,494,782 km (0.1 R)
• M6: 1,881,343 km (0.119 R)
• M7: 2,464,775 km (0.087 R)
• M8: 3,436,263 km (0.032 R)
• M9: 4,394,737 km (0.049 R)
• M10: 4,688,996 km (0.12 R)
• M11: 4,948,249 km (0.114 R)
• M12: 5,945,618 km (0.087 R)
• M13: 6,710,811 km (0.065 R)
• M14: 7,101,860 km (0.101 R)
• M15: 8,999,060 km (0.106 R)
• M16: 9,253,227 km (0.075 R)
• M17: 9,549,730 km (0.107 R)
• M18: 10,318,663 km (0.066 R)
• M19: 11,294,938 km (0.119 R)
• M20: 12,465,542 km (0.083 R)
• M21: 13,010,976 km (0.089 R)
• M22: 14,003,707 km (0.102 R)
• M23: 16,032,703 km (0.113 R)
• M24: 19,735,549 km (0.106 R)
• M25: 21,171,689 km (0.078 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 823.2

Radius: 12.8

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 3.82 AU - 4.94 AU

Year: 6217 Days

Day: 11.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 37,122,737 km

• M1: 159,172 km (0.115 R)
• M2: 689,497 km (0.068 R)
• M3: 1,536,370 km (0.044 R)
• M4: 2,171,413 km (0.105 R)
• M5: 2,782,072 km (0.094 R)
• M6: 3,687,139 km (0.112 R)
• M7: 4,272,665 km (0.106 R)
• M8: 4,863,277 km (0.102 R)
• M9: 6,044,502 km (0.099 R)
• M10: 7,186,233 km (0.075 R)
• M11: 9,183,514 km (0.093 R)
• M12: 11,127,838 km (0.11 R)
• M13: 11,679,405 km (0.052 R)
• M14: 14,956,197 km (0.047 R)
• M15: 18,176,889 km (0.1 R)
• M16: 19,585,652 km (0.108 R)
• M17: 20,169,084 km (0.102 R)
• M18: 22,461,223 km (0.118 R)
• M19: 27,285,604 km (0.077 R)
• M20: 29,604,222 km (0.093 R)
• M21: 30,958,681 km (0.084 R)
• M22: 31,551,537 km (0.106 R)
• M23: 33,582,777 km (0.11 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 350 - 14,091 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit