🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.8

Radius: 9.8

Gravity: 9.66 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.51 AU - 0.67 AU

Year: 313 Days

Day: 10.8 Hours

Environment

Temp: -144 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 32,253,628 km

• M1: 122,072 km (0.052 R)
• M2: 434,133 km (0.095 R)
• M3: 784,342 km (0.078 R)
• M4: 1,120,189 km (0.103 R)
• M5: 1,463,815 km (0.104 R)
• M6: 1,970,503 km (0.099 R)
• M7: 2,300,366 km (0.116 R)
• M8: 2,999,437 km (0.111 R)
• M9: 3,821,627 km (0.108 R)
• M10: 4,889,008 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.1

Radius: 13.2

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.9 AU - 0.98 AU

Year: 629 Days

Day: 8.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,253,628 km

• M1: 164,408 km (0.112 R)
• M2: 602,879 km (0.103 R)
• M3: 1,120,189 km (0.085 R)
• M4: 1,735,934 km (0.087 R)
• M5: 2,219,883 km (0.055 R)
• M6: 2,750,806 km (0.055 R)
• M7: 3,674,124 km (0.08 R)
• M8: 4,186,646 km (0.113 R)
• M9: 4,955,280 km (0.043 R)
• M10: 5,512,831 km (0.047 R)
• M11: 6,130,670 km (0.101 R)
• M12: 6,734,148 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 744.3

Radius: 13.4

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.03 AU - 1.35 AU

Year: 896 Days

Day: 15 Hours

Environment

Temp: -178 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 32,253,628 km

• M1: 168,298 km (0.11 R)
• M2: 801,545 km (0.074 R)
• M3: 1,476,381 km (0.099 R)
• M4: 2,049,640 km (0.113 R)
• M5: 2,867,791 km (0.102 R)
• M6: 3,339,623 km (0.073 R)
• M7: 4,050,063 km (0.1 R)
• M8: 5,133,451 km (0.059 R)
• M9: 5,957,586 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.1

Radius: 14.5

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.66 AU - 1.7 AU

Year: 1503 Days

Day: 12 Hours

Environment

Temp: -187 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,253,628 km

• M1: 180,265 km (0.118 R)
• M2: 797,955 km (0.101 R)
• M3: 1,350,420 km (0.096 R)
• M4: 1,884,784 km (0.039 R)
• M5: 2,453,704 km (0.082 R)
• M6: 3,411,729 km (0.115 R)
• M7: 5,241,012 km (0.092 R)
• M8: 6,154,606 km (0.108 R)
• M9: 7,604,060 km (0.116 R)
• M10: 8,134,833 km (0.115 R)
• M11: 10,253,887 km (0.065 R)
• M12: 11,441,844 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 982.7

Radius: 10.6

Gravity: 8.75 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 2.04 AU - 2.7 AU

Year: 2518 Days

Day: 14.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 32,253,628 km

• M1: 131,796 km (0.084 R)
• M2: 478,863 km (0.106 R)
• M3: 1,307,635 km (0.075 R)
• M4: 1,742,067 km (0.087 R)
• M5: 2,084,347 km (0.035 R)
• M6: 2,486,765 km (0.112 R)
• M7: 2,842,509 km (0.082 R)
• M8: 3,543,525 km (0.115 R)
• M9: 5,213,935 km (0.053 R)
• M10: 5,854,812 km (0.06 R)
• M11: 6,320,211 km (0.119 R)
• M12: 6,809,994 km (0.079 R)
• M13: 7,639,963 km (0.056 R)
• M14: 10,144,531 km (0.041 R)
• M15: 11,226,572 km (0.111 R)
• M16: 13,198,272 km (0.113 R)
• M17: 15,493,552 km (0.049 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 540.4

Radius: 11.5

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 2.46 AU - 2.96 AU

Year: 3079 Days

Day: 5.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,253,628 km

• M1: 145,260 km (0.03 R)
• M2: 507,885 km (0.107 R)
• M3: 1,183,768 km (0.105 R)
• M4: 2,044,554 km (0.092 R)
• M5: 2,664,787 km (0.089 R)
• M6: 4,096,438 km (0.084 R)
• M7: 4,807,776 km (0.049 R)
• M8: 5,400,034 km (0.083 R)
• M9: 5,987,356 km (0.071 R)
• M10: 6,588,739 km (0.064 R)
• M11: 8,105,661 km (0.067 R)
• M12: 8,876,838 km (0.106 R)
• M13: 9,550,178 km (0.089 R)
• M14: 10,682,485 km (0.065 R)
• M15: 12,029,015 km (0.098 R)
• M16: 12,502,193 km (0.116 R)
• M17: 13,122,127 km (0.117 R)
• M18: 14,519,969 km (0.085 R)
• M19: 17,013,018 km (0.068 R)
• M20: 18,502,265 km (0.08 R)
• M21: 19,778,783 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.9

Radius: 9.6

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 2.28 AU - 3.26 AU

Year: 3182 Days

Day: 8.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 32,253,628 km

• M1: 119,379 km (0.101 R)
• M2: 470,186 km (0.085 R)
• M3: 1,621,940 km (0.091 R)
• M4: 1,923,679 km (0.118 R)
• M5: 3,243,880 km (0.104 R)
• M6: 3,621,166 km (0.084 R)
• M7: 4,568,121 km (0.111 R)
• M8: 5,363,233 km (0.103 R)
• M9: 6,917,106 km (0.05 R)
• M10: 10,117,304 km (0.113 R)
• M11: 12,018,244 km (0.064 R)
• M12: 14,281,211 km (0.104 R)
• M13: 14,923,435 km (0.099 R)
• M14: 15,441,343 km (0.047 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 268.8

Radius: 12.5

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 4.06 AU - 5.5 AU

Year: 7214 Days

Day: 10.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 32,253,628 km

• M1: 160,668 km (0.088 R)
• M2: 1,075,309 km (0.115 R)
• M3: 1,520,513 km (0.102 R)
• M4: 1,938,489 km (0.084 R)
• M5: 2,645,788 km (0.075 R)
• M6: 3,835,390 km (0.05 R)
• M7: 4,358,235 km (0.045 R)
• M8: 6,371,523 km (0.085 R)
• M9: 8,336,192 km (0.051 R)
• M10: 10,244,761 km (0.106 R)
• M11: 12,236,059 km (0.072 R)
• M12: 12,673,333 km (0.116 R)
• M13: 16,615,387 km (0.076 R)
• M14: 20,618,775 km (0.084 R)
• M15: 27,474,846 km (0.108 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 172.7

Radius: 5.2

Gravity: 6.39 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 5.77 AU - 6.89 AU

Year: 10993 Days

Day: 17.6 Hours

Environment

Temp: -238 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 32,253,628 km

• M1: 64,776 km (0.111 R)
• M2: 249,230 km (0.077 R)
• M3: 498,610 km (0.108 R)
• M4: 849,716 km (0.105 R)
• M5: 1,070,822 km (0.093 R)
• M6: 1,296,565 km (0.091 R)
• M7: 1,492,688 km (0.116 R)
• M8: 2,063,553 km (0.12 R)
• M9: 2,332,231 km (0.08 R)
• M10: 3,017,539 km (0.117 R)
• M11: 3,759,694 km (0.1 R)
• M12: 4,064,125 km (0.118 R)
• M13: 7,773,405 km (0.042 R)
• M14: 7,961,150 km (0.117 R)
• M15: 8,502,844 km (0.092 R)
• M16: 9,616,450 km (0.12 R)
• M17: 9,789,385 km (0.065 R)
• M18: 10,593,175 km (0.119 R)
• M19: 11,979,349 km (0.066 R)
• M20: 15,754,900 km (0.057 R)
• M21: 16,793,857 km (0.082 R)
• M22: 22,376,550 km (0.09 R)
• M23: 25,872,653 km (0.062 R)
• M24: 26,715,038 km (0.073 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 512 - 19,470 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit