🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 689.6

Radius: 9.9

Gravity: 7.04 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.72 AU - 0.76 AU

Year: 418 Days

Day: 8.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 27,812,516 km

• M1: 123,119 km (0.076 R)
• M2: 595,400 km (0.07 R)
• M3: 1,111,662 km (0.078 R)
• M4: 1,446,013 km (0.106 R)
• M5: 1,772,436 km (0.118 R)
• M6: 2,881,704 km (0.096 R)
• M7: 3,324,065 km (0.111 R)
• M8: 4,234,966 km (0.04 R)
• M9: 4,558,696 km (0.104 R)
• M10: 5,067,777 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 252.8

Radius: 10.4

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.69 AU - 0.83 AU

Year: 435 Days

Day: 10.7 Hours

Environment

Temp: -146 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 27,812,516 km

• M1: 129,402 km (0.104 R)
• M2: 546,331 km (0.102 R)
• M3: 1,106,725 km (0.052 R)
• M4: 1,706,164 km (0.072 R)
• M5: 2,215,544 km (0.083 R)
• M6: 3,173,719 km (0.102 R)
• M7: 4,164,356 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 504.4

Radius: 12.5

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.73 AU - 1.03 AU

Year: 542 Days

Day: 7.1 Hours

Environment

Temp: -159 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 27,812,516 km

• M1: 155,432 km (0.118 R)
• M2: 599,738 km (0.056 R)
• M3: 1,227,600 km (0.117 R)
• M4: 1,716,636 km (0.05 R)
• M5: 2,354,072 km (0.091 R)
• M6: 3,224,881 km (0.09 R)
• M7: 4,187,992 km (0.082 R)
• M8: 5,124,475 km (0.092 R)
• M9: 5,892,810 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.6

Radius: 13.8

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 1.14 AU - 1.38 AU

Year: 928 Days

Day: 12.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 27,812,516 km

• M1: 171,589 km (0.081 R)
• M2: 645,515 km (0.083 R)
• M3: 1,101,788 km (0.116 R)
• M4: 1,672,205 km (0.117 R)
• M5: 2,608,239 km (0.12 R)
• M6: 3,208,725 km (0.101 R)
• M7: 3,703,894 km (0.113 R)
• M8: 4,449,340 km (0.096 R)
• M9: 5,031,126 km (0.113 R)
• M10: 5,824,593 km (0.111 R)
• M11: 6,413,261 km (0.045 R)
• M12: 7,087,947 km (0.085 R)
• M13: 8,606,066 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 795.2

Radius: 13.7

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.38 AU - 1.48 AU

Year: 1122 Days

Day: 11 Hours

Environment

Temp: -172 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,812,516 km

• M1: 170,392 km (0.119 R)
• M2: 736,470 km (0.103 R)
• M3: 1,294,321 km (0.12 R)
• M4: 2,081,056 km (0.069 R)
• M5: 2,541,967 km (0.11 R)
• M6: 4,097,186 km (0.102 R)
• M7: 4,643,967 km (0.084 R)
• M8: 5,360,391 km (0.068 R)
• M9: 6,216,540 km (0.096 R)
• M10: 7,337,177 km (0.083 R)
• M11: 8,958,369 km (0.077 R)
• M12: 9,853,413 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 739.3

Radius: 15

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 2.37 AU - 3.29 AU

Year: 3123 Days

Day: 13.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 27,812,516 km

• M1: 186,549 km (0.048 R)
• M2: 674,088 km (0.087 R)
• M3: 1,216,380 km (0.12 R)
• M4: 1,699,881 km (0.097 R)
• M5: 2,925,536 km (0.105 R)
• M6: 3,740,695 km (0.115 R)
• M7: 4,749,732 km (0.068 R)
• M8: 5,536,019 km (0.08 R)
• M9: 6,350,878 km (0.064 R)
• M10: 7,951,725 km (0.095 R)
• M11: 9,770,087 km (0.114 R)
• M12: 11,379,910 km (0.116 R)
• M13: 12,382,365 km (0.098 R)
• M14: 13,020,999 km (0.072 R)
• M15: 13,971,244 km (0.096 R)
• M16: 15,640,009 km (0.049 R)
• M17: 19,614,226 km (0.064 R)
• M18: 20,169,832 km (0.106 R)
• M19: 21,248,134 km (0.061 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 710.4

Radius: 11

Gravity: 5.87 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 2.69 AU - 3.65 AU

Year: 3703 Days

Day: 14 Hours

Environment

Temp: -214 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 27,812,516 km

• M1: 137,780 km (0.092 R)
• M2: 530,175 km (0.037 R)
• M3: 1,039,107 km (0.066 R)
• M4: 1,469,949 km (0.06 R)
• M5: 1,928,017 km (0.087 R)
• M6: 3,228,172 km (0.093 R)
• M7: 3,615,033 km (0.088 R)
• M8: 4,186,646 km (0.114 R)
• M9: 4,576,797 km (0.091 R)
• M10: 4,966,201 km (0.086 R)
• M11: 5,537,814 km (0.089 R)
• M12: 7,192,666 km (0.09 R)
• M13: 8,168,941 km (0.086 R)
• M14: 11,808,059 km (0.118 R)
• M15: 13,019,353 km (0.091 R)
• M16: 18,033,724 km (0.109 R)
• M17: 18,885,834 km (0.11 R)
• M18: 22,844,343 km (0.054 R)
• M19: 24,059,227 km (0.09 R)
• M20: 24,424,695 km (0.096 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 957.9

Radius: 8.7

Gravity: 12.66 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.83 AU - 3.55 AU

Year: 3738 Days

Day: 14.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 27,812,516 km

• M1: 126,410 km (0.116 R)
• M2: 863,778 km (0.082 R)
• M3: 1,522,906 km (0.114 R)
• M4: 1,921,435 km (0.045 R)
• M5: 3,172,073 km (0.065 R)
• M6: 3,509,267 km (0.111 R)
• M7: 4,117,083 km (0.057 R)
• M8: 5,320,299 km (0.111 R)
• M9: 6,273,686 km (0.106 R)
• M10: 6,678,947 km (0.108 R)
• M11: 7,302,770 km (0.118 R)
• M12: 8,440,611 km (0.044 R)
• M13: 10,150,066 km (0.069 R)
• M14: 10,709,412 km (0.07 R)
• M15: 12,078,682 km (0.105 R)
• M16: 13,715,731 km (0.045 R)
• M17: 15,551,746 km (0.103 R)
• M18: 17,122,075 km (0.079 R)
• M19: 17,852,860 km (0.079 R)
• M20: 18,667,869 km (0.074 R)
• M21: 19,836,977 km (0.051 R)
• M22: 21,123,369 km (0.113 R)
• M23: 23,339,961 km (0.11 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 481 - 12,330 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit