🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31.2

Radius: 13.1

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.65 AU - 0.77 AU

Year: 406 Days

Day: 13.4 Hours

Environment

Temp: -156 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 52,328,013 km

• M1: 205,996 km (0.091 R)
• M2: 859,440 km (0.114 R)
• M3: 1,438,084 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 292.9

Radius: 11.7

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.67 AU - 0.87 AU

Year: 458 Days

Day: 7.8 Hours

Environment

Temp: -162 °C

Axial Tilt: 78.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 52,328,013 km

• M1: 145,559 km (0.043 R)
• M2: 561,890 km (0.093 R)
• M3: 1,421,479 km (0.103 R)
• M4: 1,895,106 km (0.109 R)
• M5: 2,490,655 km (0.118 R)
• M6: 3,865,609 km (0.094 R)
• M7: 4,584,277 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 213.1

Radius: 15

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.79 AU - 1.27 AU

Year: 709 Days

Day: 5.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 52,328,013 km

• M1: 188,643 km (0.037 R)
• M2: 803,789 km (0.054 R)
• M3: 1,307,785 km (0.064 R)
• M4: 2,151,965 km (0.079 R)
• M5: 3,227,873 km (0.118 R)
• M6: 3,990,074 km (0.065 R)
• M7: 4,539,697 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 595.9

Radius: 11.4

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 2.76 AU - 4.16 AU

Year: 4365 Days

Day: 12.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 52,328,013 km

• M1: 141,819 km (0.052 R)
• M2: 550,969 km (0.107 R)
• M3: 983,905 km (0.046 R)
• M4: 1,343,389 km (0.052 R)
• M5: 1,986,660 km (0.107 R)
• M6: 2,690,966 km (0.032 R)
• M7: 3,996,806 km (0.043 R)
• M8: 5,251,633 km (0.076 R)
• M9: 5,798,563 km (0.06 R)
• M10: 6,752,848 km (0.06 R)
• M11: 8,267,975 km (0.076 R)
• M12: 9,124,573 km (0.101 R)
• M13: 9,634,402 km (0.105 R)
• M14: 10,840,460 km (0.084 R)
• M15: 11,367,942 km (0.106 R)
• M16: 11,774,848 km (0.065 R)
• M17: 15,942,944 km (0.117 R)
• M18: 16,683,603 km (0.11 R)
• M19: 17,506,541 km (0.104 R)
• M20: 18,604,290 km (0.091 R)
• M21: 18,980,230 km (0.114 R)
• M22: 19,877,069 km (0.12 R)
• M23: 24,340,770 km (0.08 R)
• M24: 24,790,761 km (0.092 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 776.8

Radius: 3.1

Gravity: 80.83 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 5.13 AU - 6.19 AU

Year: 9133 Days

Day: 15.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 52,328,013 km

• M1: 43,084 km (0.053 R)
• M2: 141,819 km (0.076 R)
• M3: 303,684 km (0.028 R)
• M4: 443,558 km (0.09 R)
• M5: 729,888 km (0.089 R)
• M6: 1,037,760 km (0.094 R)
• M7: 1,466,358 km (0.102 R)
• M8: 2,213,749 km (0.106 R)
• M9: 2,439,343 km (0.088 R)
• M10: 3,024,869 km (0.12 R)
• M11: 3,855,287 km (0.076 R)
• M12: 4,496,314 km (0.104 R)
• M13: 5,045,338 km (0.113 R)
• M14: 5,173,244 km (0.067 R)
• M15: 11,081,462 km (0.064 R)
• M16: 11,243,327 km (0.105 R)
• M17: 11,682,696 km (0.064 R)
• M18: 13,432,393 km (0.106 R)
• M19: 14,691,259 km (0.057 R)
• M20: 14,952,158 km (0.069 R)
• M21: 15,483,080 km (0.099 R)
• M22: 15,821,321 km (0.06 R)
• M23: 18,706,167 km (0.112 R)
• M24: 20,758,201 km (0.087 R)
• M25: 23,218,338 km (0.093 R)
• M26: 24,019,584 km (0.12 R)
• M27: 28,809,259 km (0.094 R)
• M28: 29,115,336 km (0.118 R)
• M29: 44,559,222 km (0.12 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 170.2

Radius: 3.3

Gravity: 15.63 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 7.47 AU - 8.07 AU

Year: 14690 Days

Day: 22.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 52,328,013 km

• M1: 91,404 km (0.074 R)
• M2: 366,515 km (0.049 R)
• M3: 484,099 km (0.116 R)
• M4: 2,493,497 km (0.072 R)
• M5: 2,922,993 km (0.069 R)
• M6: 10,723,923 km (0.052 R)
• M7: 15,111,629 km (0.108 R)
• M8: 18,288,788 km (0.042 R)
• M9: 21,489,136 km (0.09 R)
• M10: 28,874,184 km (0.053 R)
• M11: 33,392,788 km (0.074 R)
• M12: 37,216,509 km (0.119 R)
• M13: 38,014,614 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 321.1

Radius: 6.2

Gravity: 8.35 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 8.43 AU - 8.47 AU

Year: 16660 Days

Day: 20.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 52,328,013 km

• M1: 79,287 km (0.099 R)
• M2: 320,439 km (0.03 R)
• M3: 641,027 km (0.093 R)
• M4: 913,295 km (0.038 R)
• M5: 1,391,410 km (0.088 R)
• M6: 3,421,154 km (0.085 R)
• M7: 4,870,308 km (0.092 R)
• M8: 6,338,013 km (0.046 R)
• M9: 8,628,805 km (0.079 R)
• M10: 9,804,644 km (0.094 R)
• M11: 14,360,348 km (0.059 R)
• M12: 14,693,054 km (0.072 R)
• M13: 15,235,945 km (0.087 R)
• M14: 18,153,253 km (0.03 R)
• M15: 18,463,968 km (0.109 R)
• M16: 18,936,697 km (0.073 R)
• M17: 23,561,515 km (0.11 R)
• M18: 27,845,400 km (0.079 R)
• M19: 35,321,703 km (0.11 R)
• M20: 46,305,328 km (0.065 R)
• M21: 49,859,923 km (0.1 R)
• M22: 51,548,135 km (0.113 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: 429 - 14,475 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit