🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.71

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.48 AU - 0.74 AU

Year: 308 Days

Day: 41.4 Hours

Environment

Temp: -122 °C

Axial Tilt: 17.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 677.6

Radius: 15

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.63 AU - 0.75 AU

Year: 370 Days

Day: 9.4 Hours

Environment

Temp: -127 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 60,445,180 km

• M1: 193,729 km (0.114 R)
• M2: 745,446 km (0.088 R)
• M3: 1,232,238 km (0.116 R)
• M4: 1,867,580 km (0.029 R)
• M5: 2,513,693 km (0.095 R)
• M6: 3,018,436 km (0.118 R)
• M7: 3,685,643 km (0.109 R)
• M8: 4,671,642 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879.4

Radius: 8.9

Gravity: 11.1 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.69 AU - 0.75 AU

Year: 394 Days

Day: 11.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,445,180 km

• M1: 110,702 km (0.06 R)
• M2: 415,732 km (0.077 R)
• M3: 695,032 km (0.08 R)
• M4: 1,179,579 km (0.104 R)
• M5: 1,502,711 km (0.106 R)
• M6: 1,909,018 km (0.06 R)
• M7: 2,213,899 km (0.094 R)
• M8: 2,774,143 km (0.087 R)
• M9: 3,054,789 km (0.12 R)
• M10: 3,499,244 km (0.064 R)
• M11: 3,986,185 km (0.119 R)
• M12: 4,459,662 km (0.094 R)
• M13: 5,159,631 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.4

Radius: 8.4

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.95 AU - 1.23 AU

Year: 735 Days

Day: 12.9 Hours

Environment

Temp: -154 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,445,180 km

• M1: 117,584 km (0.114 R)
• M2: 398,230 km (0.052 R)
• M3: 817,702 km (0.102 R)
• M4: 1,484,310 km (0.105 R)
• M5: 1,899,444 km (0.113 R)
• M6: 2,676,306 km (0.1 R)
• M7: 3,552,800 km (0.118 R)
• M8: 4,004,735 km (0.098 R)
• M9: 4,522,942 km (0.057 R)
• M10: 4,932,840 km (0.043 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969

Radius: 14.2

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.39 AU - 1.71 AU

Year: 1246 Days

Day: 13.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,445,180 km

• M1: 176,675 km (0.12 R)
• M2: 639,830 km (0.05 R)
• M3: 1,244,505 km (0.104 R)
• M4: 1,902,885 km (0.087 R)
• M5: 2,453,405 km (0.119 R)
• M6: 2,966,975 km (0.087 R)
• M7: 3,584,365 km (0.115 R)
• M8: 4,142,814 km (0.12 R)
• M9: 4,917,731 km (0.031 R)
• M10: 5,609,920 km (0.104 R)
• M11: 6,535,632 km (0.091 R)
• M12: 8,311,658 km (0.109 R)
• M13: 8,779,749 km (0.1 R)
• M14: 9,801,204 km (0.03 R)
• M15: 10,969,563 km (0.051 R)
• M16: 11,786,667 km (0.105 R)
• M17: 12,492,021 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 933.9

Radius: 12

Gravity: 6.49 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.71 AU - 1.93 AU

Year: 1585 Days

Day: 11.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,445,180 km

• M1: 149,897 km (0.105 R)
• M2: 804,687 km (0.062 R)
• M3: 1,383,780 km (0.114 R)
• M4: 2,182,633 km (0.113 R)
• M5: 3,463,191 km (0.073 R)
• M6: 4,364,219 km (0.112 R)
• M7: 5,303,245 km (0.08 R)
• M8: 6,098,507 km (0.107 R)
• M9: 6,732,652 km (0.073 R)
• M10: 7,106,796 km (0.081 R)
• M11: 8,313,453 km (0.078 R)
• M12: 8,870,555 km (0.116 R)
• M13: 9,288,382 km (0.055 R)
• M14: 9,991,043 km (0.111 R)
• M15: 10,873,521 km (0.086 R)
• M16: 11,465,181 km (0.075 R)
• M17: 11,884,204 km (0.092 R)
• M18: 14,930,017 km (0.042 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 826.9

Radius: 11.4

Gravity: 6.36 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 3.05 AU - 4.03 AU

Year: 4301 Days

Day: 12.5 Hours

Environment

Temp: -214 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 60,445,180 km

• M1: 142,417 km (0.096 R)
• M2: 615,894 km (0.066 R)
• M3: 1,020,557 km (0.117 R)
• M4: 1,979,778 km (0.117 R)
• M5: 2,410,470 km (0.05 R)
• M6: 3,715,562 km (0.113 R)
• M7: 4,647,707 km (0.067 R)
• M8: 5,729,449 km (0.082 R)
• M9: 6,237,034 km (0.056 R)
• M10: 7,138,661 km (0.06 R)
• M11: 7,834,440 km (0.074 R)
• M12: 8,728,437 km (0.111 R)
• M13: 10,942,187 km (0.083 R)
• M14: 12,894,439 km (0.033 R)
• M15: 13,715,731 km (0.103 R)
• M16: 15,236,693 km (0.061 R)
• M17: 15,691,321 km (0.07 R)
• M18: 18,675,649 km (0.111 R)
• M19: 20,678,914 km (0.083 R)
• M20: 23,794,439 km (0.113 R)
• M21: 24,329,700 km (0.115 R)
• M22: 25,029,519 km (0.08 R)
• M23: 25,983,654 km (0.068 R)
• M24: 26,551,228 km (0.114 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.1

Radius: 12

Gravity: 5.79 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 4.47 AU - 4.89 AU

Year: 6537 Days

Day: 7.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 60,445,180 km

• M1: 149,299 km (0.096 R)
• M2: 686,654 km (0.067 R)
• M3: 1,528,890 km (0.059 R)
• M4: 1,925,474 km (0.088 R)
• M5: 3,034,294 km (0.067 R)
• M6: 3,532,155 km (0.076 R)
• M7: 4,009,073 km (0.1 R)
• M8: 4,474,921 km (0.031 R)
• M9: 5,271,530 km (0.098 R)
• M10: 8,033,555 km (0.045 R)
• M11: 8,566,273 km (0.098 R)
• M12: 10,887,583 km (0.11 R)
• M13: 11,438,702 km (0.094 R)
• M14: 14,537,622 km (0.073 R)
• M15: 15,144,690 km (0.045 R)
• M16: 16,215,362 km (0.112 R)
• M17: 23,065,448 km (0.115 R)
• M18: 24,823,223 km (0.051 R)
• M19: 27,303,556 km (0.117 R)
• M20: 28,887,798 km (0.081 R)
• M21: 29,365,164 km (0.061 R)
• M22: 31,027,646 km (0.118 R)
• M23: 34,326,129 km (0.116 R)
• M24: 35,077,559 km (0.055 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 981.5

Radius: 5.6

Gravity: 31.3 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 6.32 AU - 7.58 AU

Year: 11830 Days

Day: 24.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 60,445,180 km

• M1: 69,713 km (0.061 R)
• M2: 340,784 km (0.027 R)
• M3: 612,902 km (0.108 R)
• M4: 2,219,733 km (0.108 R)
• M5: 2,886,491 km (0.085 R)
• M6: 3,542,029 km (0.107 R)
• M7: 4,200,409 km (0.085 R)
• M8: 4,574,703 km (0.089 R)
• M9: 4,971,137 km (0.076 R)
• M10: 5,984,812 km (0.086 R)
• M11: 6,663,538 km (0.091 R)
• M12: 6,872,676 km (0.047 R)
• M13: 7,348,098 km (0.072 R)
• M14: 7,984,637 km (0.079 R)
• M15: 9,007,437 km (0.074 R)
• M16: 9,211,638 km (0.113 R)
• M17: 9,951,101 km (0.089 R)
• M18: 13,505,845 km (0.109 R)
• M19: 18,147,119 km (0.092 R)
• M20: 18,886,582 km (0.076 R)
• M21: 19,306,054 km (0.057 R)
• M22: 20,425,495 km (0.1 R)
• M23: 20,689,834 km (0.119 R)
• M24: 27,740,532 km (0.106 R)
• M25: 35,345,639 km (0.099 R)
• M26: 35,726,814 km (0.074 R)
• M27: 36,497,243 km (0.114 R)
• M28: 39,010,188 km (0.052 R)
• M29: 44,821,018 km (0.091 R)
• M30: 45,118,419 km (0.119 R)
• M31: 47,699,281 km (0.111 R)
• M32: 49,104,603 km (0.043 R)
• M33: 50,056,794 km (0.076 R)
• M34: 55,002,500 km (0.1 R)
• M35: 55,685,563 km (0.118 R)
• M36: 56,720,781 km (0.117 R)
• M37: 59,364,923 km (0.047 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 498 - 15,739 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit