🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 531.4

Radius: 9.6

Gravity: 5.77 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.72 AU - 1.02 AU

Year: 524 Days

Day: 6.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 74,557,186 km

• M1: 119,379 km (0.069 R)
• M2: 459,116 km (0.088 R)
• M3: 1,061,098 km (0.029 R)
• M4: 1,478,625 km (0.056 R)
• M5: 1,818,811 km (0.066 R)
• M6: 2,501,127 km (0.09 R)
• M7: 2,826,951 km (0.087 R)
• M8: 3,345,308 km (0.065 R)
• M9: 3,678,312 km (0.113 R)
• M10: 4,074,298 km (0.071 R)
• M11: 4,484,196 km (0.09 R)
• M12: 5,062,691 km (0.041 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.3

Radius: 12.8

Gravity: 2.86 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.71 AU - 2.27 AU

Year: 1813 Days

Day: 9.9 Hours

Environment

Temp: -187 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 74,557,186 km

• M1: 159,920 km (0.061 R)
• M2: 1,329,027 km (0.071 R)
• M3: 1,890,618 km (0.066 R)
• M4: 2,848,643 km (0.085 R)
• M5: 3,252,856 km (0.108 R)
• M6: 3,695,666 km (0.074 R)
• M7: 4,287,774 km (0.116 R)
• M8: 4,862,230 km (0.032 R)
• M9: 5,422,773 km (0.048 R)
• M10: 5,865,433 km (0.101 R)
• M11: 6,332,328 km (0.108 R)
• M12: 8,719,461 km (0.037 R)
• M13: 11,437,954 km (0.099 R)
• M14: 12,020,638 km (0.114 R)
• M15: 13,404,119 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 217.9

Radius: 11.5

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 2.24 AU - 2.44 AU

Year: 2311 Days

Day: 14.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 74,557,186 km

• M1: 146,905 km (0.082 R)
• M2: 531,072 km (0.111 R)
• M3: 1,118,244 km (0.062 R)
• M4: 1,558,511 km (0.105 R)
• M5: 2,018,674 km (0.086 R)
• M6: 2,470,609 km (0.108 R)
• M7: 2,894,120 km (0.08 R)
• M8: 3,320,923 km (0.099 R)
• M9: 4,249,477 km (0.05 R)
• M10: 4,727,143 km (0.058 R)
• M11: 5,510,886 km (0.049 R)
• M12: 5,923,028 km (0.099 R)
• M13: 7,310,698 km (0.081 R)
• M14: 9,473,584 km (0.028 R)
• M15: 10,035,175 km (0.116 R)
• M16: 11,501,683 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 531.1

Radius: 14.1

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 2.01 AU - 2.95 AU

Year: 2522 Days

Day: 14.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 177.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 74,557,186 km

• M1: 175,777 km (0.064 R)
• M2: 915,090 km (0.109 R)
• M3: 1,473,838 km (0.101 R)
• M4: 2,075,820 km (0.055 R)
• M5: 2,566,052 km (0.077 R)
• M6: 3,535,446 km (0.045 R)
• M7: 3,990,523 km (0.091 R)
• M8: 4,694,232 km (0.086 R)
• M9: 5,719,426 km (0.068 R)
• M10: 7,341,516 km (0.112 R)
• M11: 8,212,624 km (0.093 R)
• M12: 8,722,154 km (0.036 R)
• M13: 10,089,030 km (0.092 R)
• M14: 13,858,148 km (0.101 R)
• M15: 16,703,649 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 769.5

Radius: 14.2

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 2.61 AU - 3.23 AU

Year: 3222 Days

Day: 11.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 74,557,186 km

• M1: 176,675 km (0.057 R)
• M2: 628,909 km (0.075 R)
• M3: 1,198,877 km (0.101 R)
• M4: 2,011,493 km (0.107 R)
• M5: 2,453,555 km (0.104 R)
• M6: 3,775,551 km (0.109 R)
• M7: 4,641,124 km (0.071 R)
• M8: 5,451,795 km (0.119 R)
• M9: 6,588,440 km (0.098 R)
• M10: 7,042,021 km (0.027 R)
• M11: 9,329,522 km (0.113 R)
• M12: 11,504,974 km (0.116 R)
• M13: 12,075,690 km (0.107 R)
• M14: 12,990,630 km (0.09 R)
• M15: 15,745,924 km (0.075 R)
• M16: 16,231,219 km (0.104 R)
• M17: 17,805,737 km (0.072 R)
• M18: 20,996,360 km (0.111 R)
• M19: 22,590,475 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 670.2

Radius: 14.6

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 5 AU - 6.11 AU

Year: 8442 Days

Day: 7 Hours

Environment

Temp: -216 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 74,557,186 km

• M1: 181,761 km (0.077 R)
• M2: 650,900 km (0.114 R)
• M3: 1,192,594 km (0.082 R)
• M4: 2,027,500 km (0.045 R)
• M5: 2,522,370 km (0.112 R)
• M6: 3,294,893 km (0.099 R)
• M7: 3,936,369 km (0.095 R)
• M8: 4,980,263 km (0.068 R)
• M9: 5,632,360 km (0.065 R)
• M10: 6,098,357 km (0.116 R)
• M11: 6,554,182 km (0.071 R)
• M12: 7,774,601 km (0.082 R)
• M13: 9,788,189 km (0.099 R)
• M14: 11,018,482 km (0.079 R)
• M15: 18,108,373 km (0.06 R)
• M16: 19,278,678 km (0.105 R)
• M17: 27,195,696 km (0.104 R)
• M18: 28,341,017 km (0.086 R)
• M19: 34,005,690 km (0.08 R)
• M20: 36,583,411 km (0.114 R)
• M21: 38,689,749 km (0.11 R)
• M22: 41,747,829 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 29.6

Radius: 4.1

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 8.44 AU - 8.74 AU

Year: 16256 Days

Day: 17.7 Hours

Environment

Temp: -237 °C

Axial Tilt: 113.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 74,557,186 km

• M1: 53,855 km (0.11 R)
• M2: 188,643 km (0.101 R)
• M3: 417,976 km (0.087 R)
• M4: 742,305 km (0.118 R)
• M5: 1,063,042 km (0.045 R)
• M6: 1,921,734 km (0.071 R)
• M7: 2,968,770 km (0.109 R)
• M8: 3,165,341 km (0.111 R)
• M9: 4,169,741 km (0.04 R)
• M10: 6,393,813 km (0.078 R)
• M11: 6,661,444 km (0.077 R)
• M12: 6,813,285 km (0.119 R)
• M13: 8,856,792 km (0.113 R)
• M14: 9,491,686 km (0.088 R)
• M15: 10,317,316 km (0.061 R)
• M16: 13,414,441 km (0.075 R)
• M17: 14,150,463 km (0.09 R)
• M18: 18,475,038 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 801.9

Radius: 5.3

Gravity: 28.55 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 8.95 AU - 9.39 AU

Year: 17930 Days

Day: 18.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 74,557,186 km

• M1: 65,973 km (0.12 R)
• M2: 514,916 km (0.03 R)
• M3: 796,010 km (0.094 R)
• M4: 1,564,943 km (0.075 R)
• M5: 1,808,489 km (0.097 R)
• M6: 2,263,715 km (0.111 R)
• M7: 2,484,073 km (0.068 R)
• M8: 2,694,557 km (0.12 R)
• M9: 3,962,848 km (0.051 R)
• M10: 11,472,810 km (0.111 R)
• M11: 15,442,839 km (0.111 R)
• M12: 17,562,790 km (0.051 R)
• M13: 18,339,652 km (0.09 R)
• M14: 21,775,167 km (0.114 R)
• M15: 23,282,365 km (0.032 R)
• M16: 25,507,035 km (0.086 R)
• M17: 26,167,809 km (0.062 R)
• M18: 32,252,254 km (0.076 R)
• M19: 33,546,425 km (0.119 R)
• M20: 38,348,666 km (0.062 R)
• M21: 40,688,826 km (0.056 R)
• M22: 41,590,452 km (0.118 R)
• M23: 42,351,905 km (0.117 R)
• M24: 45,010,259 km (0.084 R)
• M25: 49,798,289 km (0.097 R)
• M26: 51,699,827 km (0.068 R)
• M27: 56,015,576 km (0.117 R)
• M28: 57,130,828 km (0.118 R)
• M29: 59,022,194 km (0.08 R)
• M30: 61,937,109 km (0.084 R)
• M31: 63,530,326 km (0.104 R)
• M32: 65,765,318 km (0.071 R)
• M33: 68,684,870 km (0.071 R)
• M34: 71,472,178 km (0.065 R)
• M35: 73,224,418 km (0.069 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 463 - 14,373 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit