🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79.6

Radius: 8.8

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.6 AU - 0.72 AU

Year: 377 Days

Day: 11.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 87,801,745 km

• M1: 109,954 km (0.112 R)
• M2: 642,972 km (0.095 R)
• M3: 1,097,899 km (0.083 R)
• M4: 2,020,918 km (0.112 R)
• M5: 2,304,256 km (0.051 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 109.6

Radius: 10.1

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.71 AU - 0.77 AU

Year: 447 Days

Day: 6.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 87,801,745 km

• M1: 126,560 km (0.099 R)
• M2: 446,849 km (0.076 R)
• M3: 827,575 km (0.119 R)
• M4: 1,362,687 km (0.087 R)
• M5: 2,015,233 km (0.096 R)
• M6: 3,031,152 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 156.1

Radius: 9.3

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.71 AU - 1.03 AU

Year: 570 Days

Day: 8 Hours

Environment

Temp: -163 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 87,801,745 km

• M1: 115,938 km (0.118 R)
• M2: 551,268 km (0.12 R)
• M3: 1,036,863 km (0.095 R)
• M4: 1,521,111 km (0.083 R)
• M5: 2,073,726 km (0.051 R)
• M6: 2,896,364 km (0.11 R)
• M7: 3,350,544 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 854.1

Radius: 11.4

Gravity: 6.57 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.26 AU - 1.64 AU

Year: 1227 Days

Day: 5.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 87,801,745 km

• M1: 141,819 km (0.101 R)
• M2: 502,798 km (0.118 R)
• M3: 906,563 km (0.098 R)
• M4: 1,483,562 km (0.105 R)
• M5: 2,366,339 km (0.103 R)
• M6: 3,307,310 km (0.108 R)
• M7: 3,698,658 km (0.095 R)
• M8: 4,227,037 km (0.065 R)
• M9: 5,185,511 km (0.106 R)
• M10: 5,585,835 km (0.09 R)
• M11: 6,029,393 km (0.06 R)
• M12: 8,099,977 km (0.119 R)
• M13: 9,114,101 km (0.1 R)
• M14: 9,667,762 km (0.109 R)
• M15: 10,842,255 km (0.118 R)
• M16: 11,712,316 km (0.065 R)
• M17: 12,073,147 km (0.052 R)
• M18: 12,741,251 km (0.12 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 748.6

Radius: 6.5

Gravity: 17.72 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 4.89 AU - 6.61 AU

Year: 9692 Days

Day: 21.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 87,801,745 km

• M1: 80,783 km (0.075 R)
• M2: 313,856 km (0.106 R)
• M3: 587,920 km (0.067 R)
• M4: 808,277 km (0.104 R)
• M5: 1,210,097 km (0.072 R)
• M6: 1,647,821 km (0.073 R)
• M7: 2,011,792 km (0.08 R)
• M8: 2,314,279 km (0.074 R)
• M9: 2,585,949 km (0.116 R)
• M10: 3,972,571 km (0.091 R)
• M11: 4,538,650 km (0.088 R)
• M12: 5,092,611 km (0.067 R)
• M13: 5,419,332 km (0.025 R)
• M14: 5,690,853 km (0.084 R)
• M15: 6,334,722 km (0.056 R)
• M16: 6,947,026 km (0.101 R)
• M17: 8,200,058 km (0.065 R)
• M18: 8,422,809 km (0.08 R)
• M19: 9,067,725 km (0.067 R)
• M20: 9,695,588 km (0.084 R)
• M21: 11,641,258 km (0.039 R)
• M22: 13,034,163 km (0.116 R)
• M23: 14,276,873 km (0.089 R)
• M24: 20,283,377 km (0.066 R)
• M25: 21,187,846 km (0.107 R)
• M26: 22,725,413 km (0.102 R)
• M27: 22,988,705 km (0.032 R)
• M28: 25,168,944 km (0.096 R)
• M29: 28,386,645 km (0.117 R)
• M30: 30,041,197 km (0.046 R)
• M31: 30,999,521 km (0.103 R)
• M32: 35,861,302 km (0.045 R)
• M33: 36,218,243 km (0.086 R)
• M34: 42,655,888 km (0.064 R)
• M35: 46,919,577 km (0.115 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 283.4

Radius: 7.9

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 5.57 AU - 7.71 AU

Year: 12027 Days

Day: 20.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 87,801,745 km

• M1: 98,286 km (0.103 R)
• M2: 392,395 km (0.116 R)
• M3: 705,504 km (0.118 R)
• M4: 1,357,750 km (0.105 R)
• M5: 1,626,727 km (0.073 R)
• M6: 3,105,053 km (0.099 R)
• M7: 3,601,419 km (0.098 R)
• M8: 4,097,635 km (0.098 R)
• M9: 4,416,728 km (0.063 R)
• M10: 5,538,263 km (0.12 R)
• M11: 6,303,306 km (0.115 R)
• M12: 7,327,453 km (0.113 R)
• M13: 7,798,836 km (0.086 R)
• M14: 9,935,991 km (0.102 R)
• M15: 10,661,391 km (0.094 R)
• M16: 10,910,921 km (0.085 R)
• M17: 11,630,337 km (0.109 R)
• M18: 15,138,257 km (0.115 R)
• M19: 16,228,975 km (0.103 R)
• M20: 20,116,575 km (0.094 R)
• M21: 20,884,461 km (0.082 R)
• M22: 22,234,582 km (0.083 R)
• M23: 23,055,276 km (0.108 R)
• M24: 27,464,673 km (0.112 R)
• M25: 30,263,649 km (0.096 R)
• M26: 32,509,861 km (0.116 R)
• M27: 32,824,615 km (0.106 R)
• M28: 38,373,051 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 169.1

Radius: 5.3

Gravity: 6.02 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 6.08 AU - 9.94 AU

Year: 15935 Days

Day: 19.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 87,801,745 km

• M1: 65,973 km (0.116 R)
• M2: 270,772 km (0.117 R)
• M3: 532,419 km (0.09 R)
• M4: 2,277,927 km (0.109 R)
• M5: 2,951,117 km (0.076 R)
• M6: 3,798,140 km (0.078 R)
• M7: 4,183,953 km (0.097 R)
• M8: 4,973,531 km (0.068 R)
• M9: 6,515,137 km (0.095 R)
• M10: 7,571,298 km (0.094 R)
• M11: 11,107,193 km (0.115 R)
• M12: 11,575,135 km (0.094 R)
• M13: 13,520,506 km (0.108 R)
• M14: 16,662,510 km (0.061 R)
• M15: 17,413,641 km (0.119 R)
• M16: 21,431,391 km (0.092 R)
• M17: 23,399,800 km (0.107 R)
• M18: 32,797,538 km (0.036 R)
• M19: 36,188,623 km (0.079 R)
• M20: 36,528,658 km (0.039 R)
• M21: 37,677,570 km (0.115 R)
• M22: 39,926,625 km (0.078 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 866.6

Radius: 4.1

Gravity: 51.55 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 7.41 AU - 10.63 AU

Year: 19042 Days

Day: 17.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 87,801,745 km

• M1: 51,013 km (0.106 R)
• M2: 188,493 km (0.074 R)
• M3: 319,691 km (0.086 R)
• M4: 650,302 km (0.063 R)
• M5: 1,817,016 km (0.106 R)
• M6: 2,422,139 km (0.026 R)
• M7: 3,097,274 km (0.115 R)
• M8: 3,672,478 km (0.104 R)
• M9: 4,248,280 km (0.108 R)
• M10: 4,418,373 km (0.103 R)
• M11: 4,808,824 km (0.096 R)
• M12: 5,031,276 km (0.099 R)
• M13: 5,260,460 km (0.043 R)
• M14: 5,698,781 km (0.107 R)
• M15: 6,512,594 km (0.093 R)
• M16: 8,420,565 km (0.071 R)
• M17: 9,940,629 km (0.112 R)
• M18: 11,900,660 km (0.108 R)
• M19: 12,935,429 km (0.099 R)
• M20: 13,438,377 km (0.113 R)
• M21: 14,103,938 km (0.032 R)
• M22: 17,676,484 km (0.115 R)
• M23: 23,776,038 km (0.065 R)
• M24: 24,204,786 km (0.105 R)
• M25: 25,858,590 km (0.111 R)
• M26: 30,132,003 km (0.093 R)
• M27: 36,246,666 km (0.102 R)
• M28: 38,113,498 km (0.1 R)
• M29: 38,553,166 km (0.097 R)
• M30: 42,193,631 km (0.097 R)
• M31: 42,350,110 km (0.112 R)
• M32: 45,726,085 km (0.097 R)
• M33: 47,226,253 km (0.08 R)
• M34: 48,244,416 km (0.08 R)
• M35: 51,030,826 km (0.07 R)
• M36: 59,438,974 km (0.108 R)
• M37: 62,029,411 km (0.084 R)
• M38: 71,576,148 km (0.048 R)
• M39: 78,930,081 km (0.062 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 859.8

Radius: 3.6

Gravity: 66.34 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 8.22 AU - 11.72 AU

Year: 22128 Days

Day: 17.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 87,801,745 km

• M1: 46,675 km (0.085 R)
• M2: 404,213 km (0.12 R)
• M3: 789,727 km (0.088 R)
• M4: 1,257,968 km (0.106 R)
• M5: 1,432,549 km (0.111 R)
• M6: 1,810,733 km (0.103 R)
• M7: 2,735,846 km (0.062 R)
• M8: 3,085,157 km (0.032 R)
• M9: 3,586,011 km (0.068 R)
• M10: 5,290,529 km (0.057 R)
• M11: 5,494,431 km (0.1 R)
• M12: 23,702,885 km (0.07 R)
• M13: 27,154,258 km (0.069 R)
• M14: 32,392,128 km (0.077 R)
• M15: 38,720,267 km (0.073 R)
• M16: 42,821,343 km (0.092 R)
• M17: 46,166,202 km (0.03 R)
• M18: 48,431,114 km (0.073 R)
• M19: 49,681,004 km (0.031 R)
• M20: 54,511,220 km (0.05 R)
• M21: 68,603,190 km (0.108 R)
• M22: 78,661,104 km (0.06 R)
• M23: 84,680,324 km (0.118 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: 264 - 19,688 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit