🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.16

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.44 AU - 0.66 AU

Year: 263 Days

Day: 36.1 Hours

Environment

Temp: -122 °C

Axial Tilt: 39.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 730.4

Radius: 12

Gravity: 5.07 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.84 AU - 0.9 AU

Year: 524 Days

Day: 10.7 Hours

Environment

Temp: -148 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,099,839 km

• M1: 151,543 km (0.047 R)
• M2: 526,136 km (0.085 R)
• M3: 948,002 km (0.067 R)
• M4: 1,346,231 km (0.073 R)
• M5: 2,148,674 km (0.119 R)
• M6: 2,705,328 km (0.106 R)
• M7: 3,418,760 km (0.098 R)
• M8: 4,658,178 km (0.05 R)
• M9: 5,372,359 km (0.101 R)
• M10: 5,809,783 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 349.6

Radius: 10.3

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.87 AU - 0.93 AU

Year: 551 Days

Day: 13.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,099,839 km

• M1: 128,205 km (0.101 R)
• M2: 526,884 km (0.096 R)
• M3: 864,227 km (0.104 R)
• M4: 1,185,713 km (0.105 R)
• M5: 1,609,823 km (0.094 R)
• M6: 2,051,735 km (0.086 R)
• M7: 2,479,435 km (0.061 R)
• M8: 2,882,601 km (0.1 R)
• M9: 3,261,234 km (0.071 R)
• M10: 3,660,660 km (0.11 R)
• M11: 4,226,289 km (0.057 R)
• M12: 4,878,985 km (0.041 R)
• M13: 5,214,234 km (0.034 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.9

Radius: 14.5

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.73 AU - 1.17 AU

Year: 598 Days

Day: 11.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 57,099,839 km

• M1: 180,265 km (0.037 R)
• M2: 955,781 km (0.094 R)
• M3: 1,674,748 km (0.03 R)
• M4: 2,626,789 km (0.096 R)
• M5: 3,216,055 km (0.088 R)
• M6: 3,848,106 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 700

Radius: 13.3

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.09 AU - 1.21 AU

Year: 796 Days

Day: 7.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,099,839 km

• M1: 165,455 km (0.102 R)
• M2: 606,021 km (0.084 R)
• M3: 1,123,330 km (0.096 R)
• M4: 1,593,068 km (0.078 R)
• M5: 2,618,711 km (0.111 R)
• M6: 3,344,410 km (0.096 R)
• M7: 3,955,069 km (0.102 R)
• M8: 4,723,702 km (0.099 R)
• M9: 5,216,627 km (0.108 R)
• M10: 5,647,320 km (0.093 R)
• M11: 6,286,103 km (0.069 R)
• M12: 6,796,530 km (0.111 R)
• M13: 8,244,638 km (0.051 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 235.3

Radius: 12.6

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.5 AU - 1.6 AU

Year: 1246 Days

Day: 10.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,099,839 km

• M1: 156,779 km (0.106 R)
• M2: 593,455 km (0.119 R)
• M3: 988,244 km (0.104 R)
• M4: 1,429,258 km (0.088 R)
• M5: 2,143,737 km (0.105 R)
• M6: 2,595,224 km (0.053 R)
• M7: 3,568,358 km (0.118 R)
• M8: 4,177,670 km (0.074 R)
• M9: 4,804,635 km (0.044 R)
• M10: 5,239,067 km (0.088 R)
• M11: 5,891,463 km (0.043 R)
• M12: 6,328,888 km (0.053 R)
• M13: 6,852,330 km (0.113 R)
• M14: 7,495,601 km (0.087 R)
• M15: 8,349,805 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.9

Radius: 13.7

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.56 AU - 2.22 AU

Year: 1678 Days

Day: 14.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,099,839 km

• M1: 177,273 km (0.086 R)
• M2: 609,911 km (0.104 R)
• M3: 3,178,356 km (0.058 R)
• M4: 3,994,712 km (0.117 R)
• M5: 5,302,945 km (0.107 R)
• M6: 6,880,006 km (0.108 R)
• M7: 10,163,380 km (0.102 R)
• M8: 11,549,704 km (0.037 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 991.2

Radius: 4.3

Gravity: 53.61 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 6.02 AU - 6.36 AU

Year: 9944 Days

Day: 19.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 57,099,839 km

• M1: 55,650 km (0.097 R)
• M2: 232,026 km (0.055 R)
• M3: 441,314 km (0.096 R)
• M4: 1,046,288 km (0.069 R)
• M5: 1,212,790 km (0.034 R)
• M6: 1,584,391 km (0.058 R)
• M7: 2,010,296 km (0.1 R)
• M8: 2,613,176 km (0.089 R)
• M9: 2,898,908 km (0.062 R)
• M10: 3,108,793 km (0.113 R)
• M11: 3,532,754 km (0.066 R)
• M12: 3,799,636 km (0.117 R)
• M13: 4,343,574 km (0.074 R)
• M14: 4,525,635 km (0.098 R)
• M15: 5,102,783 km (0.11 R)
• M16: 5,513,878 km (0.106 R)
• M17: 6,479,682 km (0.084 R)
• M18: 7,423,794 km (0.12 R)
• M19: 8,041,334 km (0.085 R)
• M20: 9,428,256 km (0.117 R)
• M21: 9,941,377 km (0.08 R)
• M22: 13,934,892 km (0.038 R)
• M23: 15,850,194 km (0.073 R)
• M24: 16,501,244 km (0.1 R)
• M25: 17,094,698 km (0.105 R)
• M26: 18,640,792 km (0.086 R)
• M27: 20,193,469 km (0.082 R)
• M28: 21,130,699 km (0.093 R)
• M29: 24,591,496 km (0.091 R)
• M30: 24,783,430 km (0.09 R)
• M31: 26,255,174 km (0.116 R)
• M32: 28,729,373 km (0.095 R)
• M33: 31,129,821 km (0.113 R)
• M34: 32,378,814 km (0.11 R)
• M35: 40,048,547 km (0.071 R)
• M36: 51,934,995 km (0.052 R)
• M37: 53,850,446 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 340.2

Radius: 5.7

Gravity: 10.47 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 7.55 AU - 9.25 AU

Year: 15719 Days

Day: 16.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 57,099,839 km

• M1: 72,256 km (0.079 R)
• M2: 254,466 km (0.063 R)
• M3: 753,076 km (0.096 R)
• M4: 971,638 km (0.081 R)
• M5: 1,208,003 km (0.107 R)
• M6: 1,454,540 km (0.074 R)
• M7: 1,929,364 km (0.107 R)
• M8: 2,860,760 km (0.106 R)
• M9: 4,930,147 km (0.083 R)
• M10: 5,290,230 km (0.049 R)
• M11: 5,953,696 km (0.072 R)
• M12: 6,868,936 km (0.081 R)
• M13: 8,275,754 km (0.11 R)
• M14: 8,974,675 km (0.06 R)
• M15: 9,167,507 km (0.11 R)
• M16: 9,762,757 km (0.07 R)
• M17: 10,121,642 km (0.03 R)
• M18: 11,030,001 km (0.032 R)
• M19: 12,462,699 km (0.029 R)
• M20: 12,824,128 km (0.045 R)
• M21: 14,274,928 km (0.094 R)
• M22: 15,484,128 km (0.117 R)
• M23: 16,470,726 km (0.089 R)
• M24: 18,104,634 km (0.105 R)
• M25: 18,335,463 km (0.112 R)
• M26: 20,253,757 km (0.087 R)
• M27: 24,955,917 km (0.098 R)
• M28: 27,104,591 km (0.054 R)
• M29: 27,406,779 km (0.11 R)
• M30: 31,432,158 km (0.083 R)
• M31: 31,765,761 km (0.103 R)
• M32: 32,101,758 km (0.066 R)
• M33: 34,875,452 km (0.081 R)
• M34: 36,320,568 km (0.069 R)
• M35: 38,435,283 km (0.101 R)
• M36: 41,558,438 km (0.099 R)
• M37: 44,846,749 km (0.118 R)
• M38: 50,705,600 km (0.085 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 421.8

Radius: 4.7

Gravity: 19.09 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 6.74 AU - 10.66 AU

Year: 16569 Days

Day: 23.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 57,099,839 km

• M1: 58,493 km (0.039 R)
• M2: 232,325 km (0.072 R)
• M3: 528,679 km (0.11 R)
• M4: 682,615 km (0.096 R)
• M5: 1,464,114 km (0.075 R)
• M6: 1,725,163 km (0.066 R)
• M7: 1,945,221 km (0.108 R)
• M8: 2,261,022 km (0.111 R)
• M9: 2,421,242 km (0.047 R)
• M10: 2,610,483 km (0.068 R)
• M11: 3,018,586 km (0.111 R)
• M12: 4,818,697 km (0.116 R)
• M13: 5,256,420 km (0.111 R)
• M14: 6,485,816 km (0.104 R)
• M15: 7,580,573 km (0.114 R)
• M16: 7,986,731 km (0.112 R)
• M17: 9,548,682 km (0.114 R)
• M18: 11,361,509 km (0.109 R)
• M19: 11,953,169 km (0.109 R)
• M20: 12,878,881 km (0.074 R)
• M21: 14,941,536 km (0.092 R)
• M22: 16,908,898 km (0.095 R)
• M23: 18,960,483 km (0.03 R)
• M24: 21,616,294 km (0.088 R)
• M25: 23,173,009 km (0.106 R)
• M26: 26,099,742 km (0.077 R)
• M27: 30,485,054 km (0.08 R)
• M28: 34,719,422 km (0.057 R)
• M29: 39,865,589 km (0.119 R)
• M30: 46,534,662 km (0.068 R)
• M31: 51,317,605 km (0.105 R)
• M32: 51,957,734 km (0.063 R)
• M33: 55,238,116 km (0.063 R)
• M34: 55,573,515 km (0.116 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 236 - 15,903 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit