🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 265

Radius: 9.7

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.42 AU - 0.68 AU

Year: 272 Days

Day: 14.5 Hours

Environment

Temp: -142 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 70,695,950 km

• M1: 121,174 km (0.087 R)
• M2: 475,871 km (0.094 R)
• M3: 974,481 km (0.099 R)
• M4: 1,322,146 km (0.069 R)
• M5: 2,170,067 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 754.4

Radius: 9.5

Gravity: 8.36 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.71 AU - 0.83 AU

Year: 451 Days

Day: 11 Hours

Environment

Temp: -169 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 70,695,950 km

• M1: 118,182 km (0.049 R)
• M2: 434,731 km (0.101 R)
• M3: 752,477 km (0.042 R)
• M4: 1,075,758 km (0.101 R)
• M5: 1,413,550 km (0.098 R)
• M6: 1,854,266 km (0.118 R)
• M7: 2,356,615 km (0.1 R)
• M8: 2,671,220 km (0.115 R)
• M9: 3,036,538 km (0.108 R)
• M10: 3,362,212 km (0.072 R)
• M11: 3,737,104 km (0.075 R)
• M12: 4,056,945 km (0.093 R)
• M13: 4,985,349 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 504.9

Radius: 13.8

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.94 AU - 2.4 AU

Year: 2132 Days

Day: 12.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 130.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 70,695,950 km

• M1: 172,038 km (0.084 R)
• M2: 635,641 km (0.082 R)
• M3: 1,455,438 km (0.062 R)
• M4: 1,914,703 km (0.027 R)
• M5: 3,571,948 km (0.04 R)
• M6: 5,367,572 km (0.044 R)
• M7: 6,115,411 km (0.112 R)
• M8: 6,617,462 km (0.109 R)
• M9: 9,066,828 km (0.054 R)
• M10: 9,856,106 km (0.082 R)
• M11: 10,442,679 km (0.1 R)
• M12: 11,310,197 km (0.046 R)
• M13: 13,563,291 km (0.079 R)
• M14: 14,952,158 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.9

Radius: 10.4

Gravity: 6.79 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 2.92 AU - 3.94 AU

Year: 4236 Days

Day: 11.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 70,695,950 km

• M1: 129,552 km (0.061 R)
• M2: 482,154 km (0.078 R)
• M3: 814,860 km (0.103 R)
• M4: 1,192,594 km (0.03 R)
• M5: 1,524,103 km (0.11 R)
• M6: 2,844,604 km (0.099 R)
• M7: 3,270,658 km (0.05 R)
• M8: 4,023,435 km (0.106 R)
• M9: 4,465,197 km (0.073 R)
• M10: 5,529,736 km (0.082 R)
• M11: 6,472,053 km (0.082 R)
• M12: 10,753,394 km (0.114 R)
• M13: 11,745,976 km (0.063 R)
• M14: 12,602,573 km (0.085 R)
• M15: 13,246,742 km (0.095 R)
• M16: 14,440,084 km (0.11 R)
• M17: 17,582,537 km (0.083 R)
• M18: 20,404,252 km (0.057 R)
• M19: 20,947,891 km (0.075 R)
• M20: 21,501,104 km (0.038 R)
• M21: 23,812,241 km (0.095 R)
• M22: 25,027,873 km (0.025 R)
• M23: 26,928,066 km (0.103 R)
• M24: 27,335,869 km (0.059 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 79.2

Radius: 5.6

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 4.67 AU - 6.93 AU

Year: 9315 Days

Day: 22.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 70,695,950 km

• M1: 69,713 km (0.095 R)
• M2: 357,838 km (0.099 R)
• M3: 600,037 km (0.095 R)
• M4: 817,852 km (0.068 R)
• M5: 1,317,060 km (0.07 R)
• M6: 1,691,204 km (0.089 R)
• M7: 2,065,947 km (0.116 R)
• M8: 2,273,289 km (0.1 R)
• M9: 2,509,803 km (0.096 R)
• M10: 3,032,199 km (0.031 R)
• M11: 3,227,574 km (0.095 R)
• M12: 5,309,976 km (0.101 R)
• M13: 6,958,844 km (0.036 R)
• M14: 10,127,028 km (0.102 R)
• M15: 11,057,826 km (0.113 R)
• M16: 11,565,561 km (0.096 R)
• M17: 11,956,460 km (0.105 R)
• M18: 13,849,621 km (0.096 R)
• M19: 17,813,366 km (0.025 R)
• M20: 18,985,466 km (0.077 R)
• M21: 21,287,777 km (0.108 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 280.5

Radius: 4.2

Gravity: 15.9 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 5.39 AU - 8.49 AU

Year: 12192 Days

Day: 18.4 Hours

Environment

Temp: -240 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 70,695,950 km

• M1: 197,469 km (0.075 R)
• M2: 572,062 km (0.111 R)
• M3: 717,023 km (0.067 R)
• M4: 905,217 km (0.099 R)
• M5: 1,332,319 km (0.116 R)
• M6: 1,591,123 km (0.097 R)
• M7: 2,008,800 km (0.106 R)
• M8: 2,140,746 km (0.09 R)
• M9: 2,727,319 km (0.068 R)
• M10: 4,210,731 km (0.098 R)
• M11: 4,595,198 km (0.087 R)
• M12: 8,727,989 km (0.058 R)
• M13: 12,808,570 km (0.111 R)
• M14: 13,379,734 km (0.069 R)
• M15: 14,695,597 km (0.117 R)
• M16: 18,936,846 km (0.099 R)
• M17: 19,378,759 km (0.082 R)
• M18: 24,443,245 km (0.113 R)
• M19: 26,218,523 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 407.5

Radius: 6.8

Gravity: 8.81 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 7.52 AU - 7.62 AU

Year: 13889 Days

Day: 16.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 70,695,950 km

• M1: 84,672 km (0.106 R)
• M2: 326,423 km (0.054 R)
• M3: 610,808 km (0.11 R)
• M4: 905,516 km (0.084 R)
• M5: 1,450,800 km (0.108 R)
• M6: 1,741,618 km (0.106 R)
• M7: 2,601,657 km (0.103 R)
• M8: 5,154,245 km (0.097 R)
• M9: 5,835,514 km (0.044 R)
• M10: 6,575,126 km (0.079 R)
• M11: 8,239,252 km (0.111 R)
• M12: 8,465,295 km (0.073 R)
• M13: 9,608,821 km (0.118 R)
• M14: 10,011,987 km (0.03 R)
• M15: 12,552,159 km (0.114 R)
• M16: 15,837,328 km (0.1 R)
• M17: 16,614,190 km (0.087 R)
• M18: 19,493,949 km (0.096 R)
• M19: 20,716,912 km (0.077 R)
• M20: 21,474,774 km (0.093 R)
• M21: 21,903,671 km (0.086 R)
• M22: 28,215,954 km (0.12 R)
• M23: 45,245,278 km (0.097 R)
• M24: 47,526,645 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 621.3

Radius: 7.5

Gravity: 11.05 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 6.6 AU - 10.36 AU

Year: 16467 Days

Day: 24.6 Hours

Environment

Temp: -238 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 70,695,950 km

• M1: 94,097 km (0.056 R)
• M2: 357,838 km (0.12 R)
• M3: 708,944 km (0.099 R)
• M4: 1,020,407 km (0.114 R)
• M5: 1,718,431 km (0.04 R)
• M6: 2,887,239 km (0.03 R)
• M7: 6,631,374 km (0.114 R)
• M8: 7,555,740 km (0.073 R)
• M9: 8,969,739 km (0.112 R)
• M10: 9,931,503 km (0.101 R)
• M11: 10,380,297 km (0.067 R)
• M12: 11,684,491 km (0.072 R)
• M13: 12,248,326 km (0.051 R)
• M14: 13,702,866 km (0.118 R)
• M15: 15,791,402 km (0.088 R)
• M16: 16,636,330 km (0.094 R)
• M17: 19,438,448 km (0.113 R)
• M18: 20,950,883 km (0.076 R)
• M19: 26,594,013 km (0.092 R)
• M20: 29,589,412 km (0.088 R)
• M21: 31,227,658 km (0.1 R)
• M22: 35,716,641 km (0.096 R)
• M23: 38,798,956 km (0.105 R)
• M24: 45,640,665 km (0.056 R)
• M25: 46,412,590 km (0.047 R)
• M26: 50,897,235 km (0.096 R)
• M27: 53,585,359 km (0.118 R)
• M28: 54,444,499 km (0.037 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 514

Radius: 4.4

Gravity: 26.55 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 8.78 AU - 10.96 AU

Year: 20678 Days

Day: 16.8 Hours

Environment

Temp: -236 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 70,695,950 km

• M1: 59,540 km (0.046 R)
• M2: 244,443 km (0.086 R)
• M3: 401,820 km (0.093 R)
• M4: 562,638 km (0.111 R)
• M5: 1,106,276 km (0.1 R)
• M6: 1,556,117 km (0.118 R)
• M7: 1,849,927 km (0.079 R)
• M8: 2,220,930 km (0.064 R)
• M9: 4,117,532 km (0.114 R)
• M10: 4,923,416 km (0.062 R)
• M11: 5,593,165 km (0.117 R)
• M12: 5,749,944 km (0.115 R)
• M13: 8,163,705 km (0.038 R)
• M14: 9,480,615 km (0.092 R)
• M15: 13,980,819 km (0.064 R)
• M16: 14,342,696 km (0.066 R)
• M17: 16,486,433 km (0.046 R)
• M18: 21,396,235 km (0.082 R)
• M19: 22,660,936 km (0.116 R)
• M20: 29,975,823 km (0.088 R)
• M21: 30,215,479 km (0.092 R)
• M22: 32,937,113 km (0.104 R)
• M23: 35,148,768 km (0.03 R)
• M24: 37,457,512 km (0.038 R)
• M25: 43,437,238 km (0.084 R)
• M26: 45,933,577 km (0.1 R)
• M27: 55,963,965 km (0.12 R)
• M28: 63,535,263 km (0.089 R)
• M29: 65,933,018 km (0.075 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 365 - 12,387 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit