🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.76

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.47 AU - 0.71 AU

Year: 198 Days

Day: 25.4 Hours

Environment

Temp: 29 °C

Axial Tilt: 26 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 94,385,503 km

• M1: 49,068 km (0.105 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.48

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.99 AU - 1.09 AU

Year: 463 Days

Day: 24.8 Hours

Environment

Temp: -62 °C

Axial Tilt: 31.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.95

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.39 AU - 1.99 AU

Year: 959 Days

Day: 25.9 Hours

Environment

Temp: -104 °C

Axial Tilt: 33.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 639.2

Radius: 9.9

Gravity: 6.52 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 2.74 AU - 3.5 AU

Year: 2406 Days

Day: 7.8 Hours

Environment

Temp: -144 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 94,385,503 km

• M1: 123,119 km (0.086 R)
• M2: 450,439 km (0.076 R)
• M3: 1,174,343 km (0.098 R)
• M4: 1,840,652 km (0.032 R)
• M5: 2,757,089 km (0.079 R)
• M6: 3,232,960 km (0.025 R)
• M7: 4,167,797 km (0.109 R)
• M8: 4,997,018 km (0.088 R)
• M9: 6,428,819 km (0.039 R)
• M10: 6,980,835 km (0.068 R)
• M11: 7,474,658 km (0.083 R)
• M12: 7,960,551 km (0.08 R)
• M13: 9,406,265 km (0.091 R)
• M14: 9,972,942 km (0.062 R)
• M15: 12,055,344 km (0.077 R)
• M16: 12,938,271 km (0.096 R)
• M17: 14,136,251 km (0.102 R)
• M18: 17,373,549 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 366.2

Radius: 14.7

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 2.75 AU - 3.63 AU

Year: 2487 Days

Day: 14.4 Hours

Environment

Temp: -150 °C

Axial Tilt: 126.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 94,385,503 km

• M1: 182,809 km (0.064 R)
• M2: 640,129 km (0.092 R)
• M3: 1,949,709 km (0.115 R)
• M4: 2,895,916 km (0.108 R)
• M5: 4,186,945 km (0.029 R)
• M6: 4,921,172 km (0.057 R)
• M7: 5,670,358 km (0.092 R)
• M8: 6,343,548 km (0.079 R)
• M9: 7,150,629 km (0.111 R)
• M10: 7,735,706 km (0.092 R)
• M11: 8,292,360 km (0.061 R)
• M12: 9,323,238 km (0.079 R)
• M13: 11,009,356 km (0.067 R)
• M14: 11,601,764 km (0.1 R)
• M15: 12,850,756 km (0.077 R)
• M16: 14,756,484 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 530.7

Radius: 9.6

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 5.88 AU - 5.9 AU

Year: 6240 Days

Day: 11.6 Hours

Environment

Temp: -174 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 94,385,503 km

• M1: 120,277 km (0.112 R)
• M2: 675,883 km (0.06 R)
• M3: 1,037,162 km (0.099 R)
• M4: 1,345,184 km (0.109 R)
• M5: 2,425,281 km (0.094 R)
• M6: 3,661,557 km (0.113 R)
• M7: 4,171,237 km (0.104 R)
• M8: 4,807,328 km (0.105 R)
• M9: 5,162,772 km (0.09 R)
• M10: 6,368,681 km (0.057 R)
• M11: 6,798,326 km (0.107 R)
• M12: 7,569,652 km (0.112 R)
• M13: 9,078,796 km (0.076 R)
• M14: 10,101,746 km (0.052 R)
• M15: 13,794,569 km (0.094 R)
• M16: 15,318,972 km (0.056 R)
• M17: 16,395,627 km (0.056 R)
• M18: 19,171,117 km (0.074 R)
• M19: 20,491,767 km (0.04 R)
• M20: 25,716,472 km (0.069 R)
• M21: 27,580,462 km (0.103 R)
• M22: 29,897,434 km (0.082 R)
• M23: 30,728,749 km (0.065 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 540

Radius: 9.9

Gravity: 5.51 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 6.39 AU - 7.11 AU

Year: 7656 Days

Day: 11.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 94,385,503 km

• M1: 123,119 km (0.114 R)
• M2: 441,314 km (0.088 R)
• M3: 1,181,374 km (0.067 R)
• M4: 1,574,817 km (0.074 R)
• M5: 1,993,840 km (0.098 R)
• M6: 3,080,071 km (0.095 R)
• M7: 4,258,902 km (0.108 R)
• M8: 4,575,600 km (0.107 R)
• M9: 5,559,655 km (0.055 R)
• M10: 6,234,491 km (0.072 R)
• M11: 6,574,527 km (0.064 R)
• M12: 6,891,226 km (0.074 R)
• M13: 7,404,047 km (0.078 R)
• M14: 8,060,932 km (0.098 R)
• M15: 8,589,012 km (0.109 R)
• M16: 9,535,219 km (0.086 R)
• M17: 9,987,752 km (0.103 R)
• M18: 10,645,085 km (0.119 R)
• M19: 11,890,637 km (0.109 R)
• M20: 12,308,913 km (0.118 R)
• M21: 13,397,985 km (0.065 R)
• M22: 16,272,060 km (0.027 R)
• M23: 16,658,172 km (0.082 R)
• M24: 16,984,445 km (0.06 R)
• M25: 18,332,770 km (0.088 R)
• M26: 19,461,785 km (0.105 R)
• M27: 23,207,566 km (0.117 R)
• M28: 25,723,653 km (0.071 R)
• M29: 28,509,315 km (0.083 R)
• M30: 31,291,686 km (0.06 R)
• M31: 34,249,984 km (0.117 R)
• M32: 35,419,390 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 707.3

Radius: 7.4

Gravity: 12.92 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 9.71 AU - 15.25 AU

Year: 19247 Days

Day: 18.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 94,385,503 km

• M1: 92,302 km (0.117 R)
• M2: 344,673 km (0.083 R)
• M3: 1,408,015 km (0.056 R)
• M4: 2,477,042 km (0.099 R)
• M5: 3,614,434 km (0.065 R)
• M6: 3,946,242 km (0.093 R)
• M7: 4,847,869 km (0.115 R)
• M8: 5,252,232 km (0.039 R)
• M9: 5,880,244 km (0.039 R)
• M10: 6,212,500 km (0.116 R)
• M11: 6,601,156 km (0.086 R)
• M12: 9,450,845 km (0.07 R)
• M13: 10,141,090 km (0.066 R)
• M14: 11,751,062 km (0.096 R)
• M15: 12,413,332 km (0.078 R)
• M16: 16,671,785 km (0.109 R)
• M17: 18,724,268 km (0.078 R)
• M18: 24,687,837 km (0.066 R)
• M19: 29,098,581 km (0.073 R)
• M20: 29,699,516 km (0.114 R)
• M21: 33,480,303 km (0.038 R)
• M22: 34,273,022 km (0.103 R)
• M23: 37,711,678 km (0.111 R)
• M24: 41,373,386 km (0.086 R)
• M25: 43,212,392 km (0.102 R)
• M26: 50,077,887 km (0.089 R)
• M27: 55,220,613 km (0.096 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 898.3

Radius: 4.5

Gravity: 44.36 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 13.06 AU - 15.96 AU

Year: 24129 Days

Day: 20.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 94,385,503 km

• M1: 57,595 km (0.114 R)
• M2: 253,718 km (0.11 R)
• M3: 624,571 km (0.083 R)
• M4: 1,343,688 km (0.062 R)
• M5: 1,565,542 km (0.066 R)
• M6: 1,733,091 km (0.114 R)
• M7: 2,380,401 km (0.064 R)
• M8: 2,654,165 km (0.051 R)
• M9: 3,507,920 km (0.101 R)
• M10: 3,829,257 km (0.079 R)
• M11: 4,065,771 km (0.077 R)
• M12: 6,509,751 km (0.087 R)
• M13: 7,713,865 km (0.087 R)
• M14: 8,256,755 km (0.11 R)
• M15: 16,710,681 km (0.097 R)
• M16: 17,988,845 km (0.083 R)
• M17: 21,152,690 km (0.078 R)
• M18: 21,678,227 km (0.096 R)
• M19: 22,428,760 km (0.101 R)
• M20: 22,865,287 km (0.104 R)
• M21: 23,642,747 km (0.043 R)
• M22: 23,981,287 km (0.115 R)
• M23: 24,783,879 km (0.069 R)
• M24: 31,859,559 km (0.115 R)
• M25: 33,675,079 km (0.076 R)
• M26: 35,854,421 km (0.106 R)
• M27: 42,952,989 km (0.115 R)
• M28: 51,497,421 km (0.105 R)
• M29: 52,639,152 km (0.086 R)
• M30: 54,579,287 km (0.117 R)
• M31: 54,973,029 km (0.104 R)
• M32: 59,014,415 km (0.026 R)
• M33: 61,319,419 km (0.11 R)
• M34: 64,778,122 km (0.066 R)
• M35: 66,331,397 km (0.118 R)
• M36: 77,408,670 km (0.096 R)
• M37: 77,905,485 km (0.106 R)
• M38: 78,404,543 km (0.108 R)
• M39: 82,732,709 km (0.079 R)
• M40: 89,382,783 km (0.115 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 446 - 13,094 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit