🌌 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 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 105.2

Radius: 13.1

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.61 AU - 0.63 AU

Year: 326 Days

Day: 9 Hours

Environment

Temp: -143 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 40,992,835 km

• M1: 170,242 km (0.099 R)
• M2: 593,904 km (0.091 R)
• M3: 1,928,317 km (0.036 R)
• M4: 2,458,641 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.2

Radius: 12.8

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.64 AU - 0.66 AU

Year: 349 Days

Day: 11.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 103.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,992,835 km

• M1: 159,172 km (0.072 R)
• M2: 570,267 km (0.08 R)
• M3: 1,031,328 km (0.034 R)
• M4: 1,544,000 km (0.093 R)
• M5: 2,135,210 km (0.055 R)
• M6: 2,618,561 km (0.092 R)
• M7: 3,022,176 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 847

Radius: 14.6

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.22 AU - 1.5 AU

Year: 1058 Days

Day: 10.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,992,835 km

• M1: 183,407 km (0.077 R)
• M2: 658,829 km (0.061 R)
• M3: 1,402,929 km (0.113 R)
• M4: 1,858,006 km (0.105 R)
• M5: 2,893,522 km (0.092 R)
• M6: 3,618,174 km (0.109 R)
• M7: 6,266,954 km (0.083 R)
• M8: 6,941,640 km (0.083 R)
• M9: 7,794,049 km (0.091 R)
• M10: 8,273,061 km (0.082 R)
• M11: 8,971,085 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699.3

Radius: 14.9

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.32 AU - 2 AU

Year: 1426 Days

Day: 10.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 40,992,835 km

• M1: 185,501 km (0.109 R)
• M2: 771,327 km (0.101 R)
• M3: 1,239,867 km (0.089 R)
• M4: 1,713,494 km (0.091 R)
• M5: 2,185,625 km (0.094 R)
• M6: 2,667,629 km (0.119 R)
• M7: 3,206,780 km (0.102 R)
• M8: 3,670,982 km (0.12 R)
• M9: 5,074,210 km (0.089 R)
• M10: 5,977,931 km (0.116 R)
• M11: 6,444,975 km (0.079 R)
• M12: 7,347,499 km (0.108 R)
• M13: 9,311,869 km (0.095 R)
• M14: 10,201,677 km (0.095 R)
• M15: 10,667,375 km (0.071 R)
• M16: 11,606,102 km (0.049 R)
• M17: 12,523,735 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40.8

Radius: 13.2

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.75 AU - 2.77 AU

Year: 2266 Days

Day: 13.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 40,992,835 km

• M1: 164,258 km (0.119 R)
• M2: 625,469 km (0.09 R)
• M3: 1,435,392 km (0.111 R)
• M4: 2,046,948 km (0.112 R)
• M5: 2,861,358 km (0.114 R)
• M6: 4,683,610 km (0.118 R)
• M7: 5,350,817 km (0.087 R)
• M8: 6,155,204 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.3

Radius: 8.5

Gravity: 11.89 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.96 AU - 2.74 AU

Year: 2402 Days

Day: 5.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 40,992,835 km

• M1: 106,514 km (0.041 R)
• M2: 450,888 km (0.101 R)
• M3: 744,698 km (0.093 R)
• M4: 1,009,786 km (0.108 R)
• M5: 1,455,288 km (0.089 R)
• M6: 1,856,809 km (0.099 R)
• M7: 3,097,723 km (0.074 R)
• M8: 3,576,885 km (0.115 R)
• M9: 4,484,346 km (0.115 R)
• M10: 5,003,899 km (0.087 R)
• M11: 5,438,032 km (0.079 R)
• M12: 6,834,379 km (0.087 R)
• M13: 7,741,241 km (0.06 R)
• M14: 8,093,095 km (0.111 R)
• M15: 8,623,868 km (0.108 R)
• M16: 9,427,508 km (0.058 R)
• M17: 9,903,229 km (0.067 R)
• M18: 13,011,574 km (0.102 R)
• M19: 13,601,588 km (0.116 R)
• M20: 14,067,436 km (0.092 R)
• M21: 14,981,928 km (0.081 R)
• M22: 16,558,240 km (0.11 R)
• M23: 19,977,449 km (0.083 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 775.1

Radius: 4.8

Gravity: 33.64 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 7.58 AU - 8.18 AU

Year: 14751 Days

Day: 16 Hours

Environment

Temp: -239 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 40,992,835 km

• M1: 59,690 km (0.07 R)
• M2: 475,871 km (0.118 R)
• M3: 1,263,055 km (0.098 R)
• M4: 1,434,045 km (0.039 R)
• M5: 2,341,506 km (0.103 R)
• M6: 2,490,805 km (0.098 R)
• M7: 2,692,014 km (0.061 R)
• M8: 3,524,675 km (0.073 R)
• M9: 3,925,149 km (0.111 R)
• M10: 4,075,345 km (0.045 R)
• M11: 4,988,790 km (0.094 R)
• M12: 5,643,580 km (0.102 R)
• M13: 6,110,774 km (0.101 R)
• M14: 6,561,363 km (0.114 R)
• M15: 6,946,278 km (0.101 R)
• M16: 9,470,443 km (0.084 R)
• M17: 12,225,288 km (0.099 R)
• M18: 13,749,839 km (0.057 R)
• M19: 15,248,511 km (0.07 R)
• M20: 18,065,289 km (0.064 R)
• M21: 18,231,193 km (0.052 R)
• M22: 19,076,272 km (0.055 R)
• M23: 21,118,432 km (0.094 R)
• M24: 22,622,190 km (0.069 R)
• M25: 23,203,976 km (0.117 R)
• M26: 24,498,596 km (0.083 R)
• M27: 29,351,850 km (0.078 R)
• M28: 30,276,814 km (0.072 R)
• M29: 30,511,084 km (0.113 R)
• M30: 30,983,215 km (0.111 R)
• M31: 31,941,988 km (0.077 R)
• M32: 32,306,558 km (0.114 R)
• M33: 33,918,624 km (0.107 R)
• M34: 38,936,885 km (0.106 R)
• M35: 42,788,581 km (0.097 R)
• M36: 50,907,557 km (0.064 R)
• M37: 51,905,674 km (0.089 R)
• M38: 52,916,656 km (0.113 R)
• M39: 59,994,880 km (0.104 R)
• M40: 60,735,539 km (0.078 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 99.3

Radius: 6

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 9.45 AU - 10.35 AU

Year: 20772 Days

Day: 21.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 40,992,835 km

• M1: 74,649 km (0.052 R)
• M2: 301,589 km (0.091 R)
• M3: 612,454 km (0.068 R)
• M4: 1,082,939 km (0.055 R)
• M5: 1,453,493 km (0.117 R)
• M6: 2,015,682 km (0.097 R)
• M7: 2,232,449 km (0.068 R)
• M8: 2,446,224 km (0.095 R)
• M9: 3,282,776 km (0.049 R)
• M10: 4,947,800 km (0.108 R)
• M11: 11,105,548 km (0.051 R)
• M12: 11,945,689 km (0.035 R)
• M13: 13,342,036 km (0.094 R)
• M14: 19,792,696 km (0.093 R)
• M15: 23,982,184 km (0.09 R)
• M16: 32,987,527 km (0.052 R)
• M17: 33,200,255 km (0.111 R)
• M18: 36,050,693 km (0.119 R)
• M19: 40,260,677 km (0.107 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: 498 - 10,635 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit