🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38.9

Radius: 11.9

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.49 AU - 0.59 AU

Year: 269 Days

Day: 9.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 73,072,106 km

• M1: 151,393 km (0.07 R)
• M2: 563,685 km (0.094 R)
• M3: 1,178,233 km (0.096 R)
• M4: 1,627,625 km (0.063 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 640.8

Radius: 13.5

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.73 AU - 1.13 AU

Year: 608 Days

Day: 7.9 Hours

Environment

Temp: -167 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 73,072,106 km

• M1: 167,849 km (0.112 R)
• M2: 1,101,938 km (0.078 R)
• M3: 1,535,622 km (0.104 R)
• M4: 2,566,202 km (0.11 R)
• M5: 3,314,042 km (0.065 R)
• M6: 4,426,302 km (0.116 R)
• M7: 5,027,685 km (0.076 R)
• M8: 6,336,966 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83.3

Radius: 11.3

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.97 AU - 1.03 AU

Year: 678 Days

Day: 10.5 Hours

Environment

Temp: -170 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 73,072,106 km

• M1: 153,188 km (0.079 R)
• M2: 770,728 km (0.115 R)
• M3: 1,240,615 km (0.119 R)
• M4: 2,040,066 km (0.079 R)
• M5: 2,771,749 km (0.084 R)
• M6: 3,949,533 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 123.5

Radius: 8.8

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.89 AU - 1.31 AU

Year: 782 Days

Day: 9.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 73,072,106 km

• M1: 109,506 km (0.115 R)
• M2: 436,078 km (0.12 R)
• M3: 830,717 km (0.119 R)
• M4: 1,303,596 km (0.107 R)
• M5: 1,659,788 km (0.107 R)
• M6: 1,993,990 km (0.12 R)
• M7: 3,137,367 km (0.072 R)
• M8: 3,570,901 km (0.097 R)
• M9: 4,558,247 km (0.086 R)
• M10: 4,924,912 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 333.7

Radius: 9.8

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 1.43 AU - 1.99 AU

Year: 1517 Days

Day: 13.8 Hours

Environment

Temp: -196 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 73,072,106 km

• M1: 121,922 km (0.11 R)
• M2: 440,865 km (0.071 R)
• M3: 1,188,106 km (0.064 R)
• M4: 1,876,556 km (0.117 R)
• M5: 2,748,262 km (0.079 R)
• M6: 3,282,776 km (0.051 R)
• M7: 3,981,847 km (0.077 R)
• M8: 4,298,246 km (0.052 R)
• M9: 5,173,543 km (0.037 R)
• M10: 7,749,768 km (0.071 R)
• M11: 8,060,483 km (0.07 R)
• M12: 8,957,771 km (0.033 R)
• M13: 9,770,237 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.1

Radius: 11.1

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 1.37 AU - 2.21 AU

Year: 1624 Days

Day: 5.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 73,072,106 km

• M1: 138,079 km (0.078 R)
• M2: 644,318 km (0.112 R)
• M3: 1,018,911 km (0.106 R)
• M4: 1,557,314 km (0.119 R)
• M5: 2,190,711 km (0.102 R)
• M6: 2,891,428 km (0.089 R)
• M7: 3,748,623 km (0.109 R)
• M8: 6,032,983 km (0.054 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 665.1

Radius: 14.8

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.79 AU - 2.55 AU

Year: 2168 Days

Day: 8.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 73,072,106 km

• M1: 184,155 km (0.078 R)
• M2: 744,549 km (0.106 R)
• M3: 1,260,512 km (0.081 R)
• M4: 2,251,897 km (0.085 R)
• M5: 3,881,018 km (0.115 R)
• M6: 4,647,108 km (0.102 R)
• M7: 5,326,432 km (0.119 R)
• M8: 6,046,447 km (0.089 R)
• M9: 8,507,332 km (0.118 R)
• M10: 9,391,306 km (0.115 R)
• M11: 9,908,465 km (0.119 R)
• M12: 11,151,624 km (0.091 R)
• M13: 13,639,436 km (0.082 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.9

Radius: 8.4

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.94 AU - 3.12 AU

Year: 2729 Days

Day: 12.6 Hours

Environment

Temp: -204 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,072,106 km

• M1: 104,419 km (0.115 R)
• M2: 448,494 km (0.112 R)
• M3: 1,302,698 km (0.114 R)
• M4: 2,604,200 km (0.106 R)
• M5: 3,767,772 km (0.096 R)
• M6: 4,111,099 km (0.062 R)
• M7: 4,675,233 km (0.096 R)
• M8: 4,986,695 km (0.08 R)
• M9: 6,249,750 km (0.089 R)
• M10: 6,863,102 km (0.046 R)
• M11: 7,915,373 km (0.101 R)
• M12: 8,209,333 km (0.058 R)
• M13: 8,571,659 km (0.071 R)
• M14: 8,850,509 km (0.082 R)
• M15: 10,688,020 km (0.032 R)
• M16: 10,974,949 km (0.058 R)
• M17: 13,335,753 km (0.101 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385.8

Radius: 10.5

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 3.66 AU - 5.94 AU

Year: 7133 Days

Day: 5.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 73,072,106 km

• M1: 130,599 km (0.088 R)
• M2: 474,824 km (0.103 R)
• M3: 1,181,225 km (0.106 R)
• M4: 1,648,269 km (0.075 R)
• M5: 5,927,965 km (0.107 R)
• M6: 6,270,694 km (0.119 R)
• M7: 6,860,259 km (0.047 R)
• M8: 7,962,047 km (0.075 R)
• M9: 9,055,159 km (0.118 R)
• M10: 11,346,400 km (0.113 R)
• M11: 12,073,446 km (0.057 R)
• M12: 12,882,920 km (0.118 R)
• M13: 13,513,475 km (0.066 R)
• M14: 17,673,193 km (0.11 R)
• M15: 22,995,736 km (0.079 R)
• M16: 29,208,984 km (0.111 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 664.4

Radius: 3.2

Gravity: 64.88 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 7.89 AU - 10.63 AU

Year: 19112 Days

Day: 22.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 73,072,106 km

• M1: 40,092 km (0.065 R)
• M2: 306,526 km (0.084 R)
• M3: 517,309 km (0.088 R)
• M4: 2,478,089 km (0.09 R)
• M5: 5,765,801 km (0.086 R)
• M6: 8,167,146 km (0.117 R)
• M7: 9,223,756 km (0.118 R)
• M8: 10,368,030 km (0.084 R)
• M9: 11,412,522 km (0.08 R)
• M10: 11,603,708 km (0.117 R)
• M11: 12,190,581 km (0.12 R)
• M12: 14,363,041 km (0.067 R)
• M13: 14,661,040 km (0.097 R)
• M14: 22,301,602 km (0.12 R)
• M15: 23,411,169 km (0.052 R)
• M16: 27,986,171 km (0.112 R)
• M17: 29,275,705 km (0.087 R)
• M18: 31,595,669 km (0.066 R)
• M19: 34,964,762 km (0.114 R)
• M20: 50,834,254 km (0.066 R)
• M21: 53,103,055 km (0.093 R)
• M22: 67,107,510 km (0.033 R)
• M23: 71,333,351 km (0.107 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 417 - 14,628 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit