🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 476.1

Radius: 9.2

Gravity: 5.63 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.69 AU - 0.71 AU

Year: 391 Days

Day: 13.5 Hours

Environment

Temp: -151 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 41,000,058 km

• M1: 114,442 km (0.116 R)
• M2: 540,647 km (0.109 R)
• M3: 874,400 km (0.102 R)
• M4: 1,181,973 km (0.074 R)
• M5: 1,716,785 km (0.042 R)
• M6: 2,009,698 km (0.089 R)
• M7: 2,458,791 km (0.116 R)
• M8: 2,863,453 km (0.109 R)
• M9: 3,675,769 km (0.117 R)
• M10: 4,620,629 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491.6

Radius: 10.4

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.7 AU - 0.78 AU

Year: 424 Days

Day: 7.9 Hours

Environment

Temp: -169 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 41,000,058 km

• M1: 129,402 km (0.09 R)
• M2: 581,188 km (0.104 R)
• M3: 935,735 km (0.11 R)
• M4: 1,291,030 km (0.084 R)
• M5: 1,723,667 km (0.105 R)
• M6: 2,176,350 km (0.09 R)
• M7: 2,555,431 km (0.047 R)
• M8: 3,158,759 km (0.075 R)
• M9: 3,552,949 km (0.079 R)
• M10: 4,292,262 km (0.064 R)
• M11: 4,720,262 km (0.11 R)
• M12: 5,100,988 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 227.8

Radius: 14.3

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.09 AU - 1.29 AU

Year: 866 Days

Day: 7.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,000,058 km

• M1: 177,872 km (0.057 R)
• M2: 757,713 km (0.075 R)
• M3: 1,655,300 km (0.076 R)
• M4: 2,708,170 km (0.065 R)
• M5: 3,402,005 km (0.083 R)
• M6: 3,964,493 km (0.069 R)
• M7: 4,559,145 km (0.117 R)
• M8: 5,212,887 km (0.118 R)
• M9: 5,805,145 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.7

Radius: 13.6

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.58 AU - 1.68 AU

Year: 1388 Days

Day: 8.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 41,000,058 km

• M1: 172,038 km (0.079 R)
• M2: 608,415 km (0.093 R)
• M3: 1,272,031 km (0.105 R)
• M4: 1,865,485 km (0.09 R)
• M5: 2,397,904 km (0.076 R)
• M6: 3,518,991 km (0.052 R)
• M7: 5,020,355 km (0.101 R)
• M8: 5,445,362 km (0.119 R)
• M9: 6,751,950 km (0.105 R)
• M10: 8,364,316 km (0.105 R)
• M11: 9,739,869 km (0.102 R)
• M12: 10,281,562 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 855.2

Radius: 14.4

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1.76 AU - 1.94 AU

Year: 1678 Days

Day: 14.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 41,000,058 km

• M1: 179,069 km (0.075 R)
• M2: 767,886 km (0.093 R)
• M3: 1,354,010 km (0.09 R)
• M4: 1,917,396 km (0.098 R)
• M5: 2,609,735 km (0.09 R)
• M6: 3,207,827 km (0.047 R)
• M7: 3,772,260 km (0.066 R)
• M8: 5,829,231 km (0.077 R)
• M9: 6,859,661 km (0.118 R)
• M10: 8,990,832 km (0.105 R)
• M11: 10,330,481 km (0.104 R)
• M12: 11,876,575 km (0.118 R)
• M13: 13,741,612 km (0.114 R)
• M14: 14,655,206 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 228.7

Radius: 12.1

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.62 AU - 2.24 AU

Year: 1788 Days

Day: 5.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 41,000,058 km

• M1: 150,495 km (0.103 R)
• M2: 883,375 km (0.047 R)
• M3: 1,419,983 km (0.05 R)
• M4: 2,535,086 km (0.083 R)
• M5: 3,392,730 km (0.085 R)
• M6: 3,969,131 km (0.044 R)
• M7: 4,609,858 km (0.096 R)
• M8: 6,185,274 km (0.084 R)
• M9: 6,906,934 km (0.108 R)
• M10: 7,288,408 km (0.089 R)
• M11: 8,464,397 km (0.114 R)
• M12: 10,214,094 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 286.8

Radius: 7.5

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 5.06 AU - 7.1 AU

Year: 9997 Days

Day: 17 Hours

Environment

Temp: -232 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 41,000,058 km

• M1: 93,349 km (0.087 R)
• M2: 383,719 km (0.046 R)
• M3: 797,057 km (0.093 R)
• M4: 1,058,704 km (0.056 R)
• M5: 1,413,700 km (0.027 R)
• M6: 1,919,341 km (0.098 R)
• M7: 2,347,639 km (0.104 R)
• M8: 2,916,560 km (0.073 R)
• M9: 3,287,114 km (0.098 R)
• M10: 3,528,715 km (0.113 R)
• M11: 5,538,412 km (0.077 R)
• M12: 6,140,544 km (0.072 R)
• M13: 6,542,812 km (0.07 R)
• M14: 8,170,138 km (0.064 R)
• M15: 8,492,522 km (0.026 R)
• M16: 9,292,721 km (0.101 R)
• M17: 13,054,808 km (0.068 R)
• M18: 14,234,088 km (0.101 R)
• M19: 16,482,245 km (0.042 R)
• M20: 17,791,076 km (0.041 R)
• M21: 20,026,966 km (0.064 R)
• M22: 20,613,988 km (0.106 R)
• M23: 21,439,619 km (0.12 R)
• M24: 23,237,187 km (0.105 R)
• M25: 24,879,921 km (0.089 R)
• M26: 25,217,563 km (0.077 R)
• M27: 28,211,914 km (0.087 R)
• M28: 29,135,681 km (0.094 R)
• M29: 33,543,882 km (0.114 R)
• M30: 33,852,652 km (0.052 R)
• M31: 35,318,860 km (0.042 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 223.4

Radius: 4.5

Gravity: 11.03 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 6.62 AU - 8.6 AU

Year: 13999 Days

Day: 17.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 41,000,058 km

• M1: 75,547 km (0.091 R)
• M2: 215,571 km (0.091 R)
• M3: 525,687 km (0.08 R)
• M4: 894,894 km (0.118 R)
• M5: 1,407,118 km (0.029 R)
• M6: 2,520,724 km (0.105 R)
• M7: 2,897,860 km (0.071 R)
• M8: 5,557,860 km (0.091 R)
• M9: 6,159,992 km (0.064 R)
• M10: 7,813,198 km (0.106 R)
• M11: 7,976,858 km (0.063 R)
• M12: 9,930,606 km (0.054 R)
• M13: 15,064,655 km (0.114 R)
• M14: 29,419,020 km (0.076 R)
• M15: 38,627,068 km (0.05 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 206.3

Radius: 4

Gravity: 12.89 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 7.33 AU - 8.19 AU

Year: 14415 Days

Day: 20.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 41,000,058 km

• M1: 131,646 km (0.071 R)
• M2: 309,069 km (0.106 R)
• M3: 528,679 km (0.102 R)
• M4: 720,763 km (0.086 R)
• M5: 1,090,419 km (0.09 R)
• M6: 1,745,957 km (0.04 R)
• M7: 3,490,717 km (0.041 R)
• M8: 4,383,218 km (0.069 R)
• M9: 5,016,465 km (0.094 R)
• M10: 6,009,346 km (0.105 R)
• M11: 8,248,079 km (0.048 R)
• M12: 9,621,686 km (0.102 R)
• M13: 9,809,282 km (0.112 R)
• M14: 10,885,639 km (0.04 R)
• M15: 11,089,391 km (0.102 R)
• M16: 13,327,525 km (0.114 R)
• M17: 15,590,492 km (0.086 R)
• M18: 17,325,677 km (0.103 R)
• M19: 27,861,257 km (0.096 R)
• M20: 29,803,187 km (0.066 R)
• M21: 37,193,322 km (0.051 R)
• M22: 39,304,148 km (0.074 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: 408 - 12,995 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit