🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 105.1

Radius: 11.5

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.69 AU - 0.89 AU

Year: 446 Days

Day: 12.8 Hours

Environment

Temp: -142 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 77,646,162 km

• M1: 143,016 km (0.053 R)
• M2: 594,801 km (0.042 R)
• M3: 955,930 km (0.107 R)
• M4: 1,429,557 km (0.077 R)
• M5: 2,203,577 km (0.102 R)
• M6: 2,665,834 km (0.063 R)
• M7: 3,119,564 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 965.6

Radius: 9.5

Gravity: 10.7 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.08 AU - 1.2 AU

Year: 774 Days

Day: 13.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 77,646,162 km

• M1: 118,182 km (0.112 R)
• M2: 480,658 km (0.108 R)
• M3: 1,002,605 km (0.092 R)
• M4: 1,367,325 km (0.084 R)
• M5: 2,138,950 km (0.097 R)
• M6: 2,552,140 km (0.086 R)
• M7: 2,852,532 km (0.118 R)
• M8: 3,163,397 km (0.091 R)
• M9: 3,853,641 km (0.038 R)
• M10: 4,350,755 km (0.1 R)
• M11: 5,204,510 km (0.118 R)
• M12: 5,731,693 km (0.081 R)
• M13: 6,533,388 km (0.037 R)
• M14: 6,938,499 km (0.119 R)
• M15: 8,203,648 km (0.098 R)
• M16: 8,702,258 km (0.096 R)
• M17: 9,445,610 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 722.5

Radius: 8.7

Gravity: 9.55 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.5 AU - 1.66 AU

Year: 1263 Days

Day: 7.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 77,646,162 km

• M1: 108,309 km (0.073 R)
• M2: 384,018 km (0.097 R)
• M3: 786,735 km (0.117 R)
• M4: 1,269,936 km (0.077 R)
• M5: 2,035,578 km (0.084 R)
• M6: 2,398,203 km (0.115 R)
• M7: 3,389,738 km (0.095 R)
• M8: 4,037,946 km (0.098 R)
• M9: 4,651,596 km (0.116 R)
• M10: 5,161,875 km (0.108 R)
• M11: 5,536,468 km (0.071 R)
• M12: 5,974,041 km (0.027 R)
• M13: 6,481,926 km (0.117 R)
• M14: 7,018,235 km (0.034 R)
• M15: 7,557,385 km (0.097 R)
• M16: 8,631,797 km (0.098 R)
• M17: 10,610,827 km (0.106 R)
• M18: 11,217,896 km (0.118 R)
• M19: 11,494,951 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 977.7

Radius: 15

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.68 AU - 2.34 AU

Year: 1812 Days

Day: 14.4 Hours

Environment

Temp: -179 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 77,646,162 km

• M1: 187,147 km (0.07 R)
• M2: 686,056 km (0.034 R)
• M3: 1,177,335 km (0.103 R)
• M4: 1,786,199 km (0.109 R)
• M5: 2,631,875 km (0.079 R)
• M6: 4,124,114 km (0.106 R)
• M7: 4,794,911 km (0.052 R)
• M8: 6,330,533 km (0.107 R)
• M9: 7,484,980 km (0.105 R)
• M10: 8,710,934 km (0.085 R)
• M11: 10,610,379 km (0.096 R)
• M12: 11,135,318 km (0.1 R)
• M13: 11,716,804 km (0.117 R)
• M14: 13,281,598 km (0.114 R)
• M15: 14,294,077 km (0.113 R)
• M16: 15,357,568 km (0.091 R)
• M17: 16,127,997 km (0.081 R)
• M18: 17,025,434 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.9

Radius: 8.6

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 2.59 AU - 3.63 AU

Year: 3487 Days

Day: 13.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 77,646,162 km

• M1: 109,057 km (0.109 R)
• M2: 502,050 km (0.117 R)
• M3: 877,242 km (0.071 R)
• M4: 1,200,972 km (0.094 R)
• M5: 3,267,816 km (0.072 R)
• M6: 3,815,494 km (0.077 R)
• M7: 4,844,129 km (0.079 R)
• M8: 5,745,157 km (0.077 R)
• M9: 6,682,986 km (0.086 R)
• M10: 9,351,812 km (0.093 R)
• M11: 10,872,474 km (0.074 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 205.8

Radius: 6.6

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 6.99 AU - 11.13 AU

Year: 17339 Days

Day: 21.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 77,646,162 km

• M1: 83,027 km (0.069 R)
• M2: 293,661 km (0.091 R)
• M3: 535,411 km (0.032 R)
• M4: 1,012,778 km (0.119 R)
• M5: 1,500,317 km (0.098 R)
• M6: 2,825,754 km (0.094 R)
• M7: 4,353,298 km (0.115 R)
• M8: 6,326,344 km (0.116 R)
• M9: 8,031,910 km (0.073 R)
• M10: 8,292,060 km (0.113 R)
• M11: 11,320,071 km (0.063 R)
• M12: 14,306,792 km (0.05 R)
• M13: 15,144,540 km (0.086 R)
• M14: 32,798,436 km (0.053 R)
• M15: 33,019,242 km (0.086 R)
• M16: 35,980,831 km (0.055 R)
• M17: 39,114,607 km (0.119 R)
• M18: 40,114,370 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 864.4

Radius: 7.5

Gravity: 15.37 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 8.57 AU - 10.25 AU

Year: 18353 Days

Day: 18.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 77,646,162 km

• M1: 94,247 km (0.113 R)
• M2: 435,330 km (0.104 R)
• M3: 677,230 km (0.1 R)
• M4: 941,719 km (0.082 R)
• M5: 1,262,008 km (0.114 R)
• M6: 1,552,975 km (0.117 R)
• M7: 1,869,674 km (0.051 R)
• M8: 2,448,618 km (0.112 R)
• M9: 2,706,674 km (0.066 R)
• M10: 3,141,406 km (0.094 R)
• M11: 3,446,885 km (0.114 R)
• M12: 3,741,742 km (0.081 R)
• M13: 4,909,204 km (0.117 R)
• M14: 5,399,286 km (0.093 R)
• M15: 7,543,921 km (0.083 R)
• M16: 10,200,331 km (0.058 R)
• M17: 10,563,405 km (0.085 R)
• M18: 12,305,023 km (0.112 R)
• M19: 13,066,626 km (0.071 R)
• M20: 13,351,311 km (0.065 R)
• M21: 14,155,250 km (0.09 R)
• M22: 19,118,159 km (0.111 R)
• M23: 19,670,474 km (0.077 R)
• M24: 20,518,694 km (0.089 R)
• M25: 25,349,210 km (0.083 R)
• M26: 26,693,945 km (0.05 R)
• M27: 27,267,952 km (0.102 R)
• M28: 28,085,504 km (0.1 R)
• M29: 30,886,874 km (0.078 R)
• M30: 36,473,158 km (0.112 R)
• M31: 39,355,310 km (0.075 R)
• M32: 51,338,399 km (0.094 R)
• M33: 53,123,700 km (0.089 R)
• M34: 58,921,066 km (0.11 R)
• M35: 60,877,507 km (0.047 R)
• M36: 61,472,757 km (0.114 R)
• M37: 62,674,926 km (0.1 R)
• M38: 70,001,631 km (0.066 R)
• M39: 77,181,730 km (0.09 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 163 - 18,600 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit