🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 641.7

Radius: 12.5

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.51 AU - 0.63 AU

Year: 287 Days

Day: 12.2 Hours

Environment

Temp: -140 °C

Axial Tilt: 166.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 52,558,940 km

• M1: 156,928 km (0.04 R)
• M2: 612,753 km (0.096 R)
• M3: 1,013,226 km (0.096 R)
• M4: 1,778,270 km (0.109 R)
• M5: 2,230,504 km (0.088 R)
• M6: 2,633,222 km (0.066 R)
• M7: 3,425,492 km (0.106 R)
• M8: 3,966,288 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469

Radius: 11

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.89 AU - 1.37 AU

Year: 801 Days

Day: 13 Hours

Environment

Temp: -178 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 52,558,940 km

• M1: 136,732 km (0.113 R)
• M2: 521,199 km (0.098 R)
• M3: 1,033,272 km (0.067 R)
• M4: 1,506,002 km (0.088 R)
• M5: 2,028,996 km (0.073 R)
• M6: 2,583,705 km (0.096 R)
• M7: 3,430,130 km (0.089 R)
• M8: 5,393,452 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.6

Radius: 13.2

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 2.41 AU - 3.23 AU

Year: 3158 Days

Day: 8.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 52,558,940 km

• M1: 164,408 km (0.057 R)
• M2: 763,847 km (0.05 R)
• M3: 1,249,741 km (0.109 R)
• M4: 1,701,825 km (0.093 R)
• M5: 2,317,121 km (0.085 R)
• M6: 3,242,085 km (0.104 R)
• M7: 4,420,767 km (0.12 R)
• M8: 5,212,887 km (0.046 R)
• M9: 6,097,759 km (0.117 R)
• M10: 7,051,595 km (0.107 R)
• M11: 8,486,089 km (0.073 R)
• M12: 9,674,793 km (0.062 R)
• M13: 11,323,362 km (0.118 R)
• M14: 12,173,078 km (0.075 R)
• M15: 14,600,603 km (0.09 R)
• M16: 15,170,421 km (0.11 R)
• M17: 17,177,576 km (0.104 R)
• M18: 17,599,441 km (0.056 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 771.4

Radius: 12.7

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 2.41 AU - 3.43 AU

Year: 3327 Days

Day: 6.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 52,558,940 km

• M1: 158,574 km (0.098 R)
• M2: 647,310 km (0.042 R)
• M3: 1,109,567 km (0.11 R)
• M4: 1,515,426 km (0.066 R)
• M5: 2,116,062 km (0.061 R)
• M6: 2,675,259 km (0.09 R)
• M7: 3,924,551 km (0.114 R)
• M8: 5,610,668 km (0.113 R)
• M9: 6,751,202 km (0.099 R)
• M10: 9,641,882 km (0.065 R)
• M11: 11,018,033 km (0.089 R)
• M12: 11,709,175 km (0.111 R)
• M13: 13,957,182 km (0.118 R)
• M14: 15,607,396 km (0.075 R)
• M15: 18,923,981 km (0.077 R)
• M16: 19,664,790 km (0.089 R)
• M17: 21,868,666 km (0.058 R)
• M18: 23,309,443 km (0.093 R)
• M19: 23,803,564 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 943.4

Radius: 8.8

Gravity: 12.18 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 3.1 AU - 3.3 AU

Year: 3817 Days

Day: 11.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 52,558,940 km

• M1: 119,080 km (0.058 R)
• M2: 635,492 km (0.116 R)
• M3: 958,474 km (0.111 R)
• M4: 1,237,474 km (0.11 R)
• M5: 1,571,825 km (0.107 R)
• M6: 2,050,239 km (0.118 R)
• M7: 2,606,145 km (0.12 R)
• M8: 3,259,289 km (0.053 R)
• M9: 3,709,578 km (0.077 R)
• M10: 4,131,444 km (0.095 R)
• M11: 4,836,798 km (0.078 R)
• M12: 6,330,383 km (0.112 R)
• M13: 6,675,356 km (0.08 R)
• M14: 7,099,167 km (0.063 R)
• M15: 8,073,199 km (0.104 R)
• M16: 8,367,159 km (0.11 R)
• M17: 8,821,637 km (0.085 R)
• M18: 9,453,089 km (0.075 R)
• M19: 11,949,728 km (0.085 R)
• M20: 14,049,334 km (0.089 R)
• M21: 20,829,260 km (0.092 R)
• M22: 21,805,834 km (0.105 R)
• M23: 22,161,877 km (0.056 R)
• M24: 24,152,127 km (0.114 R)
• M25: 24,686,940 km (0.044 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 759.3

Radius: 14.9

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 2.98 AU - 3.84 AU

Year: 4199 Days

Day: 7.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 52,558,940 km

• M1: 185,352 km (0.114 R)
• M2: 1,000,511 km (0.069 R)
• M3: 1,496,128 km (0.114 R)
• M4: 2,397,605 km (0.1 R)
• M5: 3,476,206 km (0.075 R)
• M6: 4,048,268 km (0.097 R)
• M7: 4,683,012 km (0.09 R)
• M8: 5,222,162 km (0.088 R)
• M9: 5,889,219 km (0.115 R)
• M10: 6,707,221 km (0.089 R)
• M11: 7,600,021 km (0.093 R)
• M12: 8,238,205 km (0.074 R)
• M13: 9,663,125 km (0.025 R)
• M14: 10,285,452 km (0.113 R)
• M15: 11,201,889 km (0.091 R)
• M16: 13,097,443 km (0.078 R)
• M17: 17,035,308 km (0.084 R)
• M18: 23,356,416 km (0.115 R)
• M19: 25,171,039 km (0.118 R)
• M20: 27,241,024 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31.8

Radius: 12.6

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 3.81 AU - 5.31 AU

Year: 6493 Days

Day: 9.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 52,558,940 km

• M1: 159,322 km (0.104 R)
• M2: 658,231 km (0.09 R)
• M3: 1,621,641 km (0.048 R)
• M4: 2,314,728 km (0.11 R)
• M5: 2,954,708 km (0.09 R)
• M6: 4,029,269 km (0.027 R)
• M7: 4,704,853 km (0.102 R)
• M8: 7,801,679 km (0.09 R)
• M9: 8,358,931 km (0.028 R)
• M10: 9,678,533 km (0.028 R)
• M11: 10,521,069 km (0.065 R)
• M12: 11,695,861 km (0.064 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.1

Radius: 10

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 4.57 AU - 5.31 AU

Year: 7322 Days

Day: 11.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 52,558,940 km

• M1: 153,936 km (0.055 R)
• M2: 736,620 km (0.114 R)
• M3: 1,289,683 km (0.069 R)
• M4: 2,205,521 km (0.098 R)
• M5: 2,549,148 km (0.026 R)
• M6: 4,046,024 km (0.102 R)
• M7: 4,739,410 km (0.057 R)
• M8: 6,148,622 km (0.065 R)
• M9: 6,868,337 km (0.109 R)
• M10: 7,265,669 km (0.102 R)
• M11: 8,252,567 km (0.101 R)
• M12: 8,932,788 km (0.118 R)
• M13: 13,056,753 km (0.096 R)
• M14: 14,138,196 km (0.033 R)
• M15: 15,728,421 km (0.119 R)
• M16: 16,478,654 km (0.05 R)
• M17: 17,252,524 km (0.08 R)
• M18: 17,926,163 km (0.075 R)
• M19: 18,300,906 km (0.09 R)
• M20: 20,052,547 km (0.064 R)
• M21: 20,797,246 km (0.077 R)
• M22: 24,646,100 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 986.3

Radius: 6.4

Gravity: 24.08 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 4.67 AU - 7.75 AU

Year: 10320 Days

Day: 22.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 52,558,940 km

• M1: 79,586 km (0.113 R)
• M2: 716,723 km (0.082 R)
• M3: 1,240,017 km (0.054 R)
• M4: 1,482,216 km (0.05 R)
• M5: 2,117,707 km (0.119 R)
• M6: 2,365,890 km (0.106 R)
• M7: 4,053,055 km (0.082 R)
• M8: 4,467,890 km (0.097 R)
• M9: 4,749,284 km (0.045 R)
• M10: 6,069,934 km (0.026 R)
• M11: 6,573,181 km (0.106 R)
• M12: 7,358,121 km (0.109 R)
• M13: 7,574,739 km (0.108 R)
• M14: 7,795,695 km (0.116 R)
• M15: 9,162,720 km (0.115 R)
• M16: 10,193,898 km (0.098 R)
• M17: 11,243,178 km (0.079 R)
• M18: 13,043,887 km (0.108 R)
• M19: 17,357,841 km (0.067 R)
• M20: 19,750,808 km (0.113 R)
• M21: 20,339,177 km (0.03 R)
• M22: 26,071,019 km (0.094 R)
• M23: 28,444,988 km (0.11 R)
• M24: 31,297,819 km (0.067 R)
• M25: 31,524,909 km (0.099 R)
• M26: 39,649,120 km (0.08 R)
• M27: 42,500,306 km (0.088 R)
• M28: 42,778,858 km (0.071 R)
• M29: 45,630,791 km (0.083 R)
• M30: 46,658,229 km (0.063 R)
• M31: 52,506,309 km (0.082 R)
• M32: 54,943,109 km (0.1 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 183.7

Radius: 3

Gravity: 20.41 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 8.07 AU - 12.61 AU

Year: 22172 Days

Day: 21.5 Hours

Environment

Temp: -245 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 52,558,940 km

• M1: 37,399 km (0.094 R)
• M2: 343,626 km (0.038 R)
• M3: 588,967 km (0.088 R)
• M4: 1,305,092 km (0.084 R)
• M5: 2,250,850 km (0.085 R)
• M6: 3,500,590 km (0.104 R)
• M7: 4,097,635 km (0.093 R)
• M8: 5,420,978 km (0.114 R)
• M9: 5,955,342 km (0.094 R)
• M10: 6,066,343 km (0.069 R)
• M11: 6,761,375 km (0.097 R)
• M12: 7,169,628 km (0.048 R)
• M13: 7,637,420 km (0.095 R)
• M14: 10,337,961 km (0.056 R)
• M15: 12,676,176 km (0.079 R)
• M16: 14,328,334 km (0.101 R)
• M17: 15,622,655 km (0.12 R)
• M18: 16,047,064 km (0.113 R)
• M19: 16,406,548 km (0.077 R)
• M20: 17,745,150 km (0.042 R)
• M21: 20,385,253 km (0.096 R)
• M22: 22,641,039 km (0.112 R)
• M23: 24,108,744 km (0.117 R)
• M24: 28,469,522 km (0.119 R)
• M25: 28,784,725 km (0.039 R)
• M26: 33,443,950 km (0.076 R)
• M27: 34,503,851 km (0.096 R)
• M28: 35,707,516 km (0.093 R)
• M29: 36,196,701 km (0.075 R)
• M30: 38,070,863 km (0.111 R)
• M31: 38,198,021 km (0.075 R)
• M32: 39,616,059 km (0.116 R)
• M33: 42,556,555 km (0.105 R)
• M34: 49,621,763 km (0.063 R)
• M35: 50,230,776 km (0.089 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: 367 - 16,233 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit