🌌 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: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 53.5

Radius: 8.6

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.6 AU - 0.6 AU

Year: 321 Days

Day: 9.1 Hours

Environment

Temp: -152 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 69,342,809 km

• M1: 106,962 km (0.114 R)
• M2: 957,875 km (0.068 R)
• M3: 1,315,863 km (0.092 R)
• M4: 1,853,368 km (0.051 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.4

Radius: 9.5

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.03 AU - 1.05 AU

Year: 732 Days

Day: 6.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 69,342,809 km

• M1: 119,379 km (0.102 R)
• M2: 453,431 km (0.053 R)
• M3: 785,987 km (0.119 R)
• M4: 1,114,205 km (0.107 R)
• M5: 1,430,904 km (0.036 R)
• M6: 1,800,410 km (0.032 R)
• M7: 2,169,020 km (0.109 R)
• M8: 2,485,718 km (0.054 R)
• M9: 3,118,517 km (0.088 R)
• M10: 3,511,511 km (0.042 R)
• M11: 5,374,304 km (0.1 R)
• M12: 5,724,213 km (0.059 R)
• M13: 6,373,318 km (0.075 R)
• M14: 6,765,713 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.1

Radius: 14.8

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.61 AU - 2.49 AU

Year: 2026 Days

Day: 5.4 Hours

Environment

Temp: -199 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 69,342,809 km

• M1: 184,005 km (0.068 R)
• M2: 1,015,321 km (0.089 R)
• M3: 1,649,915 km (0.11 R)
• M4: 2,523,118 km (0.118 R)
• M5: 4,164,655 km (0.096 R)
• M6: 4,787,730 km (0.104 R)
• M7: 5,376,398 km (0.103 R)
• M8: 6,993,551 km (0.045 R)
• M9: 8,701,360 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 515.6

Radius: 14.7

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.79 AU - 2.81 AU

Year: 2408 Days

Day: 13.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 69,342,809 km

• M1: 182,809 km (0.055 R)
• M2: 680,072 km (0.107 R)
• M3: 1,491,491 km (0.107 R)
• M4: 2,063,703 km (0.119 R)
• M5: 2,611,979 km (0.072 R)
• M6: 3,209,473 km (0.059 R)
• M7: 4,558,546 km (0.083 R)
• M8: 5,158,434 km (0.083 R)
• M9: 6,182,431 km (0.093 R)
• M10: 6,974,402 km (0.119 R)
• M11: 8,134,683 km (0.118 R)
• M12: 9,086,575 km (0.111 R)
• M13: 10,361,747 km (0.101 R)
• M14: 10,837,019 km (0.07 R)
• M15: 14,002,809 km (0.111 R)
• M16: 15,701,793 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 484.3

Radius: 12.1

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 2.46 AU - 2.64 AU

Year: 2811 Days

Day: 14.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 69,342,809 km

• M1: 150,795 km (0.105 R)
• M2: 671,096 km (0.068 R)
• M3: 1,085,931 km (0.114 R)
• M4: 1,516,174 km (0.096 R)
• M5: 2,210,907 km (0.116 R)
• M6: 2,676,306 km (0.099 R)
• M7: 3,257,045 km (0.105 R)
• M8: 3,844,815 km (0.11 R)
• M9: 4,716,073 km (0.099 R)
• M10: 5,940,382 km (0.071 R)
• M11: 6,410,269 km (0.103 R)
• M12: 11,508,564 km (0.056 R)
• M13: 12,832,206 km (0.11 R)
• M14: 13,397,985 km (0.089 R)
• M15: 14,439,785 km (0.073 R)
• M16: 15,583,760 km (0.048 R)
• M17: 16,633,338 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 951.4

Radius: 13.8

Gravity: 5 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 3.53 AU - 4.45 AU

Year: 5501 Days

Day: 10.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 69,342,809 km

• M1: 172,187 km (0.078 R)
• M2: 743,501 km (0.085 R)
• M3: 1,256,921 km (0.115 R)
• M4: 1,756,877 km (0.078 R)
• M5: 2,424,533 km (0.086 R)
• M6: 2,934,213 km (0.116 R)
• M7: 4,665,359 km (0.051 R)
• M8: 5,613,062 km (0.095 R)
• M9: 6,052,431 km (0.055 R)
• M10: 6,859,362 km (0.083 R)
• M11: 8,895,987 km (0.086 R)
• M12: 12,064,619 km (0.061 R)
• M13: 13,343,532 km (0.115 R)
• M14: 14,418,692 km (0.082 R)
• M15: 14,947,670 km (0.038 R)
• M16: 16,295,696 km (0.11 R)
• M17: 19,445,330 km (0.101 R)
• M18: 22,506,700 km (0.117 R)
• M19: 23,703,035 km (0.107 R)
• M20: 24,275,695 km (0.081 R)
• M21: 27,907,184 km (0.085 R)
• M22: 30,137,389 km (0.11 R)
• M23: 32,785,720 km (0.074 R)
• M24: 33,908,003 km (0.07 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 337.4

Radius: 3

Gravity: 37.49 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 5.77 AU - 8.97 AU

Year: 13811 Days

Day: 15.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 69,342,809 km

• M1: 37,848 km (0.118 R)
• M2: 147,653 km (0.118 R)
• M3: 284,386 km (0.08 R)
• M4: 412,591 km (0.08 R)
• M5: 685,757 km (0.059 R)
• M6: 861,833 km (0.076 R)
• M7: 1,475,783 km (0.109 R)
• M8: 1,588,879 km (0.069 R)
• M9: 1,769,444 km (0.045 R)
• M10: 1,881,044 km (0.079 R)
• M11: 2,299,618 km (0.057 R)
• M12: 3,512,708 km (0.083 R)
• M13: 3,740,844 km (0.032 R)
• M14: 4,603,126 km (0.096 R)
• M15: 5,192,542 km (0.047 R)
• M16: 6,223,122 km (0.12 R)
• M17: 6,595,022 km (0.108 R)
• M18: 7,220,341 km (0.106 R)
• M19: 8,143,510 km (0.094 R)
• M20: 9,284,642 km (0.116 R)
• M21: 9,380,385 km (0.039 R)
• M22: 10,424,877 km (0.078 R)
• M23: 11,878,669 km (0.109 R)
• M24: 12,683,057 km (0.098 R)
• M25: 13,894,351 km (0.116 R)
• M26: 16,195,914 km (0.05 R)
• M27: 16,826,170 km (0.101 R)
• M28: 22,469,301 km (0.114 R)
• M29: 22,902,387 km (0.115 R)
• M30: 24,873,937 km (0.1 R)
• M31: 25,618,037 km (0.047 R)
• M32: 30,820,004 km (0.108 R)
• M33: 37,646,603 km (0.051 R)
• M34: 38,257,112 km (0.06 R)
• M35: 38,503,201 km (0.055 R)
• M36: 41,021,980 km (0.079 R)
• M37: 41,150,784 km (0.077 R)
• M38: 42,190,489 km (0.069 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 382.7

Radius: 8

Gravity: 5.98 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 7.85 AU - 7.87 AU

Year: 15211 Days

Day: 22.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 69,342,809 km

• M1: 99,931 km (0.086 R)
• M2: 610,210 km (0.048 R)
• M3: 963,560 km (0.071 R)
• M4: 1,478,625 km (0.115 R)
• M5: 2,276,880 km (0.063 R)
• M6: 2,760,679 km (0.118 R)
• M7: 3,360,267 km (0.037 R)
• M8: 3,664,998 km (0.099 R)
• M9: 4,214,172 km (0.097 R)
• M10: 4,599,686 km (0.101 R)
• M11: 4,944,060 km (0.056 R)
• M12: 5,791,233 km (0.04 R)
• M13: 7,176,509 km (0.095 R)
• M14: 8,443,154 km (0.059 R)
• M15: 9,008,634 km (0.025 R)
• M16: 10,162,782 km (0.102 R)
• M17: 11,132,625 km (0.076 R)
• M18: 14,018,667 km (0.101 R)
• M19: 15,703,438 km (0.111 R)
• M20: 16,558,390 km (0.106 R)
• M21: 18,516,327 km (0.104 R)
• M22: 19,228,712 km (0.086 R)
• M23: 21,475,373 km (0.071 R)
• M24: 22,527,943 km (0.103 R)
• M25: 27,386,882 km (0.103 R)
• M26: 28,104,054 km (0.111 R)
• M27: 29,790,322 km (0.06 R)
• M28: 34,063,136 km (0.03 R)
• M29: 37,461,252 km (0.112 R)
• M30: 38,855,803 km (0.035 R)
• M31: 40,022,367 km (0.106 R)
• M32: 40,680,299 km (0.115 R)
• M33: 44,781,075 km (0.107 R)
• M34: 46,495,766 km (0.052 R)
• M35: 47,516,024 km (0.118 R)
• M36: 47,810,133 km (0.058 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 522.4

Radius: 6.2

Gravity: 13.59 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 7.96 AU - 10.86 AU

Year: 19925 Days

Day: 20.1 Hours

Environment

Temp: -244 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 69,342,809 km

• M1: 77,043 km (0.068 R)
• M2: 355,594 km (0.105 R)
• M3: 814,710 km (0.108 R)
• M4: 1,022,651 km (0.103 R)
• M5: 1,597,556 km (0.104 R)
• M6: 2,368,134 km (0.089 R)
• M7: 3,671,730 km (0.102 R)
• M8: 3,938,164 km (0.054 R)
• M9: 4,217,613 km (0.098 R)
• M10: 5,208,848 km (0.037 R)
• M11: 5,897,298 km (0.103 R)
• M12: 6,222,075 km (0.093 R)
• M13: 7,041,422 km (0.118 R)
• M14: 8,427,297 km (0.114 R)
• M15: 9,428,406 km (0.067 R)
• M16: 10,447,616 km (0.112 R)
• M17: 10,983,924 km (0.069 R)
• M18: 16,585,018 km (0.057 R)
• M19: 19,099,160 km (0.084 R)
• M20: 22,634,158 km (0.04 R)
• M21: 23,632,125 km (0.109 R)
• M22: 27,133,463 km (0.083 R)
• M23: 28,602,814 km (0.076 R)
• M24: 35,807,746 km (0.117 R)
• M25: 36,615,724 km (0.095 R)
• M26: 40,838,573 km (0.117 R)
• M27: 42,166,105 km (0.113 R)
• M28: 44,133,915 km (0.081 R)
• M29: 44,596,621 km (0.085 R)
• M30: 46,004,038 km (0.089 R)
• M31: 48,415,107 km (0.1 R)
• M32: 51,759,218 km (0.088 R)
• M33: 52,618,657 km (0.098 R)
• M34: 65,070,137 km (0.042 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: 304 - 11,626 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit