🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1

Radius: 1

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.43 AU - 0.59 AU

Year: 239 Days

Day: 46.6 Hours

Environment

Temp: -116 °C

Axial Tilt: 11.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 483

Radius: 11.8

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.78 AU - 1.18 AU

Year: 636 Days

Day: 6.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 73,001,911 km

• M1: 147,803 km (0.067 R)
• M2: 535,411 km (0.113 R)
• M3: 929,601 km (0.088 R)
• M4: 1,340,547 km (0.075 R)
• M5: 1,709,604 km (0.077 R)
• M6: 2,085,993 km (0.107 R)
• M7: 2,876,019 km (0.102 R)
• M8: 3,579,129 km (0.085 R)
• M9: 4,020,592 km (0.119 R)
• M10: 4,619,582 km (0.117 R)
• M11: 5,361,887 km (0.095 R)
• M12: 6,107,632 km (0.028 R)
• M13: 6,622,548 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.2

Radius: 12.4

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.66 AU - 2.28 AU

Year: 1814 Days

Day: 9 Hours

Environment

Temp: -195 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,001,911 km

• M1: 181,313 km (0.109 R)
• M2: 606,619 km (0.089 R)
• M3: 1,147,416 km (0.116 R)
• M4: 1,612,067 km (0.1 R)
• M5: 2,678,550 km (0.071 R)
• M6: 3,222,637 km (0.093 R)
• M7: 4,062,779 km (0.112 R)
• M8: 4,903,070 km (0.1 R)
• M9: 5,503,855 km (0.049 R)
• M10: 6,317,368 km (0.116 R)
• M11: 7,445,336 km (0.09 R)
• M12: 8,183,901 km (0.078 R)
• M13: 9,061,293 km (0.092 R)
• M14: 9,680,329 km (0.104 R)
• M15: 10,594,222 km (0.117 R)
• M16: 11,422,695 km (0.082 R)
• M17: 12,822,033 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.8

Radius: 8.4

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.88 AU - 3.02 AU

Year: 2516 Days

Day: 14.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 73,001,911 km

• M1: 104,419 km (0.095 R)
• M2: 518,955 km (0.034 R)
• M3: 1,057,358 km (0.067 R)
• M4: 1,406,519 km (0.069 R)
• M5: 2,240,079 km (0.113 R)
• M6: 2,794,189 km (0.092 R)
• M7: 4,488,983 km (0.076 R)
• M8: 4,840,837 km (0.039 R)
• M9: 7,411,079 km (0.11 R)
• M10: 9,648,763 km (0.112 R)
• M11: 11,181,244 km (0.062 R)
• M12: 11,907,542 km (0.115 R)
• M13: 13,369,562 km (0.106 R)
• M14: 14,497,230 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.2

Radius: 11.1

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 2.35 AU - 3.45 AU

Year: 3240 Days

Day: 6.8 Hours

Environment

Temp: -196 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 73,001,911 km

• M1: 138,378 km (0.114 R)
• M2: 489,933 km (0.102 R)
• M3: 988,992 km (0.096 R)
• M4: 1,924,427 km (0.045 R)
• M5: 2,399,999 km (0.079 R)
• M6: 3,034,294 km (0.084 R)
• M7: 3,758,198 km (0.102 R)
• M8: 4,974,877 km (0.081 R)
• M9: 5,750,093 km (0.108 R)
• M10: 6,220,429 km (0.078 R)
• M11: 11,118,862 km (0.113 R)
• M12: 11,480,889 km (0.049 R)
• M13: 13,820,898 km (0.06 R)
• M14: 14,859,706 km (0.106 R)
• M15: 16,722,948 km (0.048 R)
• M16: 18,012,032 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 510.6

Radius: 14.4

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 2.55 AU - 3.69 AU

Year: 3615 Days

Day: 10.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 73,001,911 km

• M1: 179,218 km (0.087 R)
• M2: 1,351,318 km (0.036 R)
• M3: 1,811,481 km (0.089 R)
• M4: 2,464,924 km (0.115 R)
• M5: 3,064,064 km (0.055 R)
• M6: 4,209,235 km (0.101 R)
• M7: 5,833,719 km (0.104 R)
• M8: 6,997,291 km (0.081 R)
• M9: 7,910,137 km (0.112 R)
• M10: 9,298,106 km (0.11 R)
• M11: 10,441,483 km (0.086 R)
• M12: 10,965,225 km (0.112 R)
• M13: 11,891,684 km (0.06 R)
• M14: 13,804,742 km (0.097 R)
• M15: 14,436,494 km (0.112 R)
• M16: 16,180,506 km (0.097 R)
• M17: 16,719,208 km (0.082 R)
• M18: 18,291,631 km (0.078 R)
• M19: 19,473,903 km (0.058 R)
• M20: 21,990,289 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 81.7

Radius: 3.3

Gravity: 7.5 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 5.52 AU - 7.06 AU

Year: 10349 Days

Day: 24.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 73,001,911 km

• M1: 48,320 km (0.071 R)
• M2: 186,249 km (0.109 R)
• M3: 338,091 km (0.067 R)
• M4: 510,129 km (0.063 R)
• M5: 731,534 km (0.101 R)
• M6: 979,866 km (0.084 R)
• M7: 1,281,605 km (0.073 R)
• M8: 1,448,706 km (0.044 R)
• M9: 2,024,658 km (0.12 R)
• M10: 3,200,347 km (0.081 R)
• M11: 4,318,741 km (0.047 R)
• M12: 5,484,108 km (0.116 R)
• M13: 5,784,501 km (0.108 R)
• M14: 6,009,646 km (0.095 R)
• M15: 6,240,625 km (0.081 R)
• M16: 7,651,931 km (0.098 R)
• M17: 8,377,930 km (0.108 R)
• M18: 9,148,807 km (0.069 R)
• M19: 12,990,929 km (0.109 R)
• M20: 13,920,231 km (0.1 R)
• M21: 15,800,976 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 189.2

Radius: 5

Gravity: 7.57 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 5.5 AU - 9.06 AU

Year: 12886 Days

Day: 18.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 73,001,911 km

• M1: 116,836 km (0.075 R)
• M2: 380,128 km (0.096 R)
• M3: 565,929 km (0.117 R)
• M4: 741,108 km (0.069 R)
• M5: 990,338 km (0.119 R)
• M6: 1,871,469 km (0.029 R)
• M7: 3,654,078 km (0.076 R)
• M8: 4,565,129 km (0.093 R)
• M9: 5,401,979 km (0.067 R)
• M10: 6,003,063 km (0.103 R)
• M11: 6,302,708 km (0.105 R)
• M12: 7,151,077 km (0.088 R)
• M13: 9,826,785 km (0.091 R)
• M14: 10,575,223 km (0.057 R)
• M15: 12,237,555 km (0.061 R)
• M16: 12,883,069 km (0.11 R)
• M17: 17,912,999 km (0.07 R)
• M18: 22,169,357 km (0.116 R)
• M19: 22,965,368 km (0.114 R)
• M20: 27,596,319 km (0.094 R)
• M21: 29,363,220 km (0.09 R)
• M22: 29,553,508 km (0.108 R)
• M23: 33,533,709 km (0.065 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 337.8

Radius: 7.9

Gravity: 5.41 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 8.62 AU - 11.68 AU

Year: 21213 Days

Day: 17.9 Hours

Environment

Temp: -235 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 73,001,911 km

• M1: 98,286 km (0.082 R)
• M2: 410,347 km (0.094 R)
• M3: 838,047 km (0.084 R)
• M4: 1,170,304 km (0.104 R)
• M5: 1,668,465 km (0.084 R)
• M6: 1,939,985 km (0.035 R)
• M7: 2,362,001 km (0.087 R)
• M8: 3,158,759 km (0.107 R)
• M9: 3,577,932 km (0.089 R)
• M10: 4,756,165 km (0.081 R)
• M11: 5,636,249 km (0.107 R)
• M12: 6,095,365 km (0.094 R)
• M13: 6,620,603 km (0.073 R)
• M14: 6,915,760 km (0.12 R)
• M15: 7,995,109 km (0.079 R)
• M16: 9,764,702 km (0.089 R)
• M17: 10,037,269 km (0.075 R)
• M18: 13,115,245 km (0.074 R)
• M19: 13,581,691 km (0.092 R)
• M20: 19,899,808 km (0.082 R)
• M21: 21,693,486 km (0.117 R)
• M22: 23,592,332 km (0.07 R)
• M23: 23,886,292 km (0.12 R)
• M24: 31,109,625 km (0.092 R)
• M25: 33,518,749 km (0.112 R)
• M26: 35,149,815 km (0.074 R)
• M27: 36,179,497 km (0.106 R)
• M28: 36,570,695 km (0.076 R)
• M29: 37,761,345 km (0.101 R)
• M30: 38,298,700 km (0.046 R)
• M31: 39,388,820 km (0.082 R)
• M32: 43,074,463 km (0.078 R)
• M33: 46,214,223 km (0.076 R)
• M34: 46,983,605 km (0.097 R)
• M35: 50,147,001 km (0.062 R)
• M36: 54,297,146 km (0.059 R)
• M37: 59,572,714 km (0.109 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 460.3

Radius: 6.5

Gravity: 10.89 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 9.9 AU - 11.48 AU

Year: 22929 Days

Day: 20.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 73,001,911 km

• M1: 81,830 km (0.098 R)
• M2: 432,787 km (0.105 R)
• M3: 878,738 km (0.095 R)
• M4: 1,580,950 km (0.106 R)
• M5: 1,822,700 km (0.074 R)
• M6: 2,170,216 km (0.118 R)
• M7: 4,242,147 km (0.096 R)
• M8: 6,593,825 km (0.037 R)
• M9: 6,949,719 km (0.082 R)
• M10: 7,318,477 km (0.12 R)
• M11: 9,528,038 km (0.047 R)
• M12: 10,512,542 km (0.062 R)
• M13: 11,499,588 km (0.05 R)
• M14: 11,950,327 km (0.076 R)
• M15: 13,302,991 km (0.11 R)
• M16: 15,831,793 km (0.108 R)
• M17: 19,648,184 km (0.08 R)
• M18: 22,308,782 km (0.06 R)
• M19: 23,725,026 km (0.055 R)
• M20: 25,741,455 km (0.104 R)
• M21: 26,180,076 km (0.116 R)
• M22: 28,100,015 km (0.063 R)
• M23: 28,565,115 km (0.091 R)
• M24: 32,472,013 km (0.092 R)
• M25: 35,355,362 km (0.087 R)
• M26: 47,440,327 km (0.106 R)
• M27: 47,769,143 km (0.047 R)
• M28: 54,310,609 km (0.078 R)
• M29: 55,577,255 km (0.103 R)
• M30: 60,841,454 km (0.105 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 440 - 10,535 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit