🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.57

Radius: 0.8

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.42 AU - 0.62 AU

Year: 238 Days

Day: 43.7 Hours

Environment

Temp: -118 °C

Axial Tilt: 76.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 0.86 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 535.8

Radius: 12.3

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.15 AU - 1.23 AU

Year: 825 Days

Day: 13.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 47,671,571 km

• M1: 153,039 km (0.083 R)
• M2: 536,458 km (0.043 R)
• M3: 1,155,943 km (0.109 R)
• M4: 1,604,138 km (0.093 R)
• M5: 3,069,898 km (0.066 R)
• M6: 3,704,342 km (0.117 R)
• M7: 4,267,279 km (0.119 R)
• M8: 4,938,076 km (0.091 R)
• M9: 5,454,189 km (0.095 R)
• M10: 5,869,472 km (0.104 R)
• M11: 6,408,174 km (0.119 R)
• M12: 6,849,787 km (0.089 R)
• M13: 7,379,513 km (0.117 R)
• M14: 8,079,781 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.7

Radius: 14

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.75 AU - 2.65 AU

Year: 2075 Days

Day: 12.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 47,671,571 km

• M1: 174,132 km (0.085 R)
• M2: 770,728 km (0.112 R)
• M3: 1,305,092 km (0.091 R)
• M4: 1,940,883 km (0.063 R)
• M5: 2,791,795 km (0.096 R)
• M6: 3,617,426 km (0.088 R)
• M7: 4,220,904 km (0.093 R)
• M8: 5,713,891 km (0.115 R)
• M9: 8,826,723 km (0.057 R)
• M10: 9,365,575 km (0.113 R)
• M11: 9,896,198 km (0.058 R)
• M12: 10,572,082 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 304.3

Radius: 14.8

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 2.82 AU - 3.08 AU

Year: 3222 Days

Day: 10.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 47,671,571 km

• M1: 184,454 km (0.115 R)
• M2: 894,446 km (0.083 R)
• M3: 1,381,836 km (0.068 R)
• M4: 2,322,208 km (0.115 R)
• M5: 2,891,428 km (0.106 R)
• M6: 5,050,275 km (0.095 R)
• M7: 6,167,471 km (0.117 R)
• M8: 6,935,507 km (0.105 R)
• M9: 7,472,862 km (0.109 R)
• M10: 8,007,376 km (0.058 R)
• M11: 9,836,359 km (0.095 R)
• M12: 10,334,221 km (0.114 R)
• M13: 11,732,063 km (0.099 R)
• M14: 13,167,156 km (0.091 R)
• M15: 13,641,531 km (0.102 R)
• M16: 14,172,154 km (0.109 R)
• M17: 17,085,722 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 997.6

Radius: 10.1

Gravity: 9.78 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 3.27 AU - 3.61 AU

Year: 4057 Days

Day: 7.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 47,671,571 km

• M1: 125,812 km (0.067 R)
• M2: 500,704 km (0.106 R)
• M3: 879,037 km (0.105 R)
• M4: 1,591,123 km (0.055 R)
• M5: 1,952,851 km (0.075 R)
• M6: 2,306,500 km (0.077 R)
• M7: 3,087,401 km (0.117 R)
• M8: 3,466,332 km (0.113 R)
• M9: 3,943,998 km (0.037 R)
• M10: 4,270,421 km (0.056 R)
• M11: 4,846,223 km (0.109 R)
• M12: 5,416,490 km (0.091 R)
• M13: 5,821,003 km (0.102 R)
• M14: 6,691,064 km (0.061 R)
• M15: 7,191,618 km (0.1 R)
• M16: 7,970,874 km (0.045 R)
• M17: 8,610,704 km (0.075 R)
• M18: 10,426,224 km (0.025 R)
• M19: 11,897,967 km (0.108 R)
• M20: 15,022,768 km (0.075 R)
• M21: 17,262,547 km (0.096 R)
• M22: 18,917,848 km (0.09 R)
• M23: 22,101,440 km (0.057 R)
• M24: 28,373,480 km (0.061 R)
• M25: 29,331,355 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 804.1

Radius: 9.6

Gravity: 8.73 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 3.2 AU - 3.91 AU

Year: 4253 Days

Day: 5.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 47,671,571 km

• M1: 119,379 km (0.066 R)
• M2: 439,369 km (0.11 R)
• M3: 799,601 km (0.027 R)
• M4: 1,170,903 km (0.072 R)
• M5: 1,645,128 km (0.113 R)
• M6: 2,320,861 km (0.095 R)
• M7: 2,891,128 km (0.1 R)
• M8: 3,594,089 km (0.092 R)
• M9: 3,941,306 km (0.094 R)
• M10: 4,263,539 km (0.037 R)
• M11: 4,779,951 km (0.1 R)
• M12: 8,994,273 km (0.093 R)
• M13: 10,311,183 km (0.114 R)
• M14: 10,615,615 km (0.059 R)
• M15: 12,472,124 km (0.105 R)
• M16: 13,068,870 km (0.068 R)
• M17: 15,140,651 km (0.116 R)
• M18: 19,723,881 km (0.091 R)
• M19: 20,397,520 km (0.066 R)
• M20: 21,156,131 km (0.096 R)
• M21: 21,862,083 km (0.074 R)
• M22: 25,312,857 km (0.059 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.3

Radius: 8

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 5.01 AU - 6.97 AU

Year: 9321 Days

Day: 7.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 47,671,571 km

• M1: 99,632 km (0.082 R)
• M2: 405,709 km (0.108 R)
• M3: 842,984 km (0.103 R)
• M4: 1,278,463 km (0.106 R)
• M5: 1,585,139 km (0.104 R)
• M6: 1,926,821 km (0.077 R)
• M7: 2,447,571 km (0.113 R)
• M8: 2,982,084 km (0.116 R)
• M9: 3,657,518 km (0.08 R)
• M10: 4,185,748 km (0.077 R)
• M11: 6,203,674 km (0.055 R)
• M12: 6,588,290 km (0.089 R)
• M13: 7,195,209 km (0.117 R)
• M14: 8,442,705 km (0.082 R)
• M15: 8,835,549 km (0.108 R)
• M16: 10,175,198 km (0.114 R)
• M17: 10,665,580 km (0.064 R)
• M18: 14,272,834 km (0.06 R)
• M19: 14,549,889 km (0.102 R)
• M20: 15,636,119 km (0.05 R)
• M21: 15,930,827 km (0.096 R)
• M22: 16,470,426 km (0.07 R)
• M23: 18,685,672 km (0.12 R)
• M24: 21,452,035 km (0.107 R)
• M25: 29,181,608 km (0.11 R)
• M26: 29,989,287 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 401.5

Radius: 5

Gravity: 16.06 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 6.83 AU - 8.09 AU

Year: 12955 Days

Day: 18.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 47,671,571 km

• M1: 62,532 km (0.109 R)
• M2: 762,351 km (0.106 R)
• M3: 1,107,323 km (0.067 R)
• M4: 1,607,728 km (0.118 R)
• M5: 2,695,305 km (0.111 R)
• M6: 3,768,819 km (0.082 R)
• M7: 5,393,452 km (0.119 R)
• M8: 5,697,734 km (0.072 R)
• M9: 5,871,716 km (0.091 R)
• M10: 6,527,404 km (0.087 R)
• M11: 7,030,502 km (0.093 R)
• M12: 7,558,881 km (0.064 R)
• M13: 9,593,711 km (0.092 R)
• M14: 9,939,881 km (0.08 R)
• M15: 16,887,056 km (0.111 R)
• M16: 17,758,314 km (0.105 R)
• M17: 20,796,946 km (0.101 R)
• M18: 22,395,549 km (0.112 R)
• M19: 23,893,772 km (0.102 R)
• M20: 24,438,159 km (0.094 R)
• M21: 26,505,003 km (0.088 R)
• M22: 31,521,319 km (0.098 R)
• M23: 32,066,304 km (0.119 R)
• M24: 35,001,264 km (0.063 R)
• M25: 35,939,243 km (0.079 R)
• M26: 36,773,550 km (0.097 R)
• M27: 37,377,327 km (0.069 R)
• M28: 38,853,409 km (0.104 R)
• M29: 39,228,302 km (0.085 R)
• M30: 41,010,311 km (0.115 R)
• M31: 43,379,792 km (0.049 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 509 - 15,071 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit