🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 525.3

Radius: 15

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.75 AU - 0.83 AU

Year: 485 Days

Day: 7.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 71,545,721 km

• M1: 186,549 km (0.1 R)
• M2: 896,540 km (0.084 R)
• M3: 1,474,287 km (0.091 R)
• M4: 2,241,574 km (0.105 R)
• M5: 2,724,028 km (0.104 R)
• M6: 3,333,789 km (0.113 R)
• M7: 4,099,879 km (0.114 R)
• M8: 4,816,154 km (0.076 R)
• M9: 5,798,563 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 875.7

Radius: 11.1

Gravity: 7.11 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.25 AU - 1.75 AU

Year: 1268 Days

Day: 6.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,545,721 km

• M1: 141,220 km (0.111 R)
• M2: 609,163 km (0.102 R)
• M3: 1,046,736 km (0.086 R)
• M4: 1,954,347 km (0.117 R)
• M5: 2,582,358 km (0.115 R)
• M6: 2,930,473 km (0.107 R)
• M7: 3,592,144 km (0.11 R)
• M8: 4,080,880 km (0.069 R)
• M9: 4,499,754 km (0.117 R)
• M10: 5,027,984 km (0.111 R)
• M11: 6,375,113 km (0.118 R)
• M12: 7,328,052 km (0.066 R)
• M13: 9,800,306 km (0.119 R)
• M14: 10,588,687 km (0.116 R)
• M15: 11,886,448 km (0.054 R)
• M16: 13,014,117 km (0.052 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.7

Radius: 9.4

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 3.07 AU - 4.73 AU

Year: 5316 Days

Day: 8.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,545,721 km

• M1: 201,957 km (0.052 R)
• M2: 1,451,099 km (0.059 R)
• M3: 2,347,789 km (0.089 R)
• M4: 3,665,447 km (0.09 R)
• M5: 4,271,468 km (0.098 R)
• M6: 4,725,797 km (0.067 R)
• M7: 6,233,294 km (0.112 R)
• M8: 6,682,537 km (0.095 R)
• M9: 11,322,764 km (0.099 R)
• M10: 11,872,386 km (0.113 R)
• M11: 12,398,672 km (0.09 R)
• M12: 14,523,410 km (0.062 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.6

Radius: 8.1

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 3.39 AU - 4.71 AU

Year: 5626 Days

Day: 12.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 71,545,721 km

• M1: 100,679 km (0.103 R)
• M2: 447,148 km (0.096 R)
• M3: 1,128,118 km (0.05 R)
• M4: 1,544,149 km (0.073 R)
• M5: 2,085,095 km (0.089 R)
• M6: 2,968,620 km (0.114 R)
• M7: 3,307,011 km (0.111 R)
• M8: 4,001,294 km (0.097 R)
• M9: 6,754,793 km (0.085 R)
• M10: 7,073,885 km (0.059 R)
• M11: 8,857,391 km (0.115 R)
• M12: 12,235,460 km (0.115 R)
• M13: 14,068,333 km (0.104 R)
• M14: 16,128,595 km (0.031 R)
• M15: 17,992,585 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 190.2

Radius: 9.3

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 3.97 AU - 6.04 AU

Year: 7717 Days

Day: 11.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 71,545,721 km

• M1: 116,986 km (0.073 R)
• M2: 410,048 km (0.029 R)
• M3: 1,163,423 km (0.115 R)
• M4: 1,598,902 km (0.101 R)
• M5: 1,947,465 km (0.086 R)
• M6: 2,817,825 km (0.113 R)
• M7: 4,171,985 km (0.068 R)
• M8: 7,210,019 km (0.115 R)
• M9: 8,029,217 km (0.074 R)
• M10: 9,610,167 km (0.1 R)
• M11: 11,796,839 km (0.104 R)
• M12: 13,128,709 km (0.112 R)
• M13: 14,558,266 km (0.098 R)
• M14: 16,259,045 km (0.079 R)
• M15: 18,581,701 km (0.105 R)
• M16: 19,020,920 km (0.036 R)
• M17: 20,050,603 km (0.114 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 98.7

Radius: 8

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 7.54 AU - 10.12 AU

Year: 18111 Days

Day: 22.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 71,545,721 km

• M1: 159,172 km (0.094 R)
• M2: 474,824 km (0.112 R)
• M3: 1,017,116 km (0.11 R)
• M4: 1,709,754 km (0.099 R)
• M5: 3,315,089 km (0.098 R)
• M6: 4,166,450 km (0.114 R)
• M7: 6,604,148 km (0.066 R)
• M8: 10,185,072 km (0.095 R)
• M9: 11,001,128 km (0.112 R)
• M10: 12,654,334 km (0.084 R)
• M11: 15,998,445 km (0.092 R)
• M12: 17,500,258 km (0.089 R)
• M13: 23,537,879 km (0.097 R)
• M14: 24,960,554 km (0.05 R)
• M15: 29,096,187 km (0.083 R)
• M16: 30,537,713 km (0.114 R)
• M17: 32,127,190 km (0.05 R)
• M18: 34,190,743 km (0.09 R)
• M19: 34,826,683 km (0.055 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 402.5

Radius: 4.1

Gravity: 23.94 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 7.84 AU - 10.08 AU

Year: 18513 Days

Day: 16.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 71,545,721 km

• M1: 51,312 km (0.095 R)
• M2: 206,445 km (0.104 R)
• M3: 603,179 km (0.065 R)
• M4: 1,113,906 km (0.082 R)
• M5: 1,526,048 km (0.108 R)
• M6: 2,070,135 km (0.081 R)
• M7: 4,038,993 km (0.073 R)
• M8: 5,899,542 km (0.099 R)
• M9: 6,697,796 km (0.103 R)
• M10: 8,903,018 km (0.079 R)
• M11: 9,841,296 km (0.059 R)
• M12: 13,377,640 km (0.066 R)
• M13: 13,982,165 km (0.103 R)
• M14: 14,119,047 km (0.116 R)
• M15: 17,202,558 km (0.099 R)
• M16: 24,360,517 km (0.083 R)
• M17: 29,983,153 km (0.079 R)
• M18: 32,670,829 km (0.093 R)
• M19: 37,719,757 km (0.073 R)
• M20: 42,831,067 km (0.079 R)
• M21: 54,399,770 km (0.093 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 676.5

Radius: 5.4

Gravity: 23.2 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 7.98 AU - 10.38 AU

Year: 19199 Days

Day: 15 Hours

Environment

Temp: -244 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 71,545,721 km

• M1: 70,012 km (0.046 R)
• M2: 296,353 km (0.09 R)
• M3: 489,634 km (0.118 R)
• M4: 674,387 km (0.117 R)
• M5: 1,085,482 km (0.086 R)
• M6: 1,332,319 km (0.114 R)
• M7: 2,198,640 km (0.062 R)
• M8: 2,811,991 km (0.119 R)
• M9: 3,590,798 km (0.077 R)
• M10: 3,798,739 km (0.082 R)
• M11: 5,370,564 km (0.113 R)
• M12: 9,611,214 km (0.096 R)
• M13: 10,306,396 km (0.06 R)
• M14: 10,605,741 km (0.118 R)
• M15: 11,475,054 km (0.108 R)
• M16: 12,323,723 km (0.093 R)
• M17: 13,638,389 km (0.068 R)
• M18: 15,979,446 km (0.119 R)
• M19: 19,198,344 km (0.098 R)
• M20: 21,927,607 km (0.115 R)
• M21: 24,267,767 km (0.091 R)
• M22: 28,140,556 km (0.107 R)
• M23: 35,161,184 km (0.055 R)
• M24: 37,644,060 km (0.094 R)
• M25: 40,093,875 km (0.065 R)
• M26: 41,433,075 km (0.058 R)
• M27: 50,785,186 km (0.11 R)
• M28: 52,000,968 km (0.098 R)
• M29: 53,771,309 km (0.074 R)
• M30: 68,768,346 km (0.073 R)
• M31: 69,191,110 km (0.113 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 685.3

Radius: 6.6

Gravity: 15.73 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 8.45 AU - 10.77 AU

Year: 20563 Days

Day: 16.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 71,545,721 km

• M1: 82,129 km (0.117 R)
• M2: 423,661 km (0.079 R)
• M3: 656,286 km (0.031 R)
• M4: 987,944 km (0.068 R)
• M5: 2,172,909 km (0.046 R)
• M6: 2,548,998 km (0.114 R)
• M7: 2,814,834 km (0.075 R)
• M8: 3,374,030 km (0.098 R)
• M9: 4,297,947 km (0.08 R)
• M10: 4,605,520 km (0.114 R)
• M11: 5,188,503 km (0.088 R)
• M12: 5,819,507 km (0.045 R)
• M13: 6,589,188 km (0.107 R)
• M14: 6,906,186 km (0.103 R)
• M15: 8,225,190 km (0.061 R)
• M16: 8,700,014 km (0.065 R)
• M17: 9,417,784 km (0.11 R)
• M18: 10,234,290 km (0.083 R)
• M19: 11,742,236 km (0.111 R)
• M20: 15,035,932 km (0.071 R)
• M21: 15,585,705 km (0.089 R)
• M22: 15,986,776 km (0.118 R)
• M23: 18,449,157 km (0.073 R)
• M24: 19,630,831 km (0.1 R)
• M25: 21,349,112 km (0.112 R)
• M26: 23,898,709 km (0.074 R)
• M27: 24,110,988 km (0.084 R)
• M28: 25,301,338 km (0.106 R)
• M29: 27,681,889 km (0.099 R)
• M30: 31,590,134 km (0.108 R)
• M31: 42,003,941 km (0.045 R)
• M32: 43,566,042 km (0.106 R)
• M33: 44,042,212 km (0.104 R)
• M34: 44,361,453 km (0.104 R)
• M35: 54,307,917 km (0.087 R)
• M36: 68,810,682 km (0.045 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 478.1

Radius: 3.5

Gravity: 39.03 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 8.6 AU - 11.4 AU

Year: 21828 Days

Day: 24.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 71,545,721 km

• M1: 43,533 km (0.071 R)
• M2: 183,108 km (0.099 R)
• M3: 624,122 km (0.115 R)
• M4: 794,514 km (0.044 R)
• M5: 2,475,546 km (0.11 R)
• M6: 3,135,571 km (0.075 R)
• M7: 5,007,639 km (0.083 R)
• M8: 5,191,046 km (0.097 R)
• M9: 7,372,781 km (0.09 R)
• M10: 9,088,968 km (0.117 R)
• M11: 9,981,768 km (0.088 R)
• M12: 12,667,798 km (0.119 R)
• M13: 17,249,981 km (0.104 R)
• M14: 21,165,855 km (0.107 R)
• M15: 25,419,221 km (0.033 R)
• M16: 25,634,942 km (0.037 R)
• M17: 33,069,657 km (0.084 R)
• M18: 33,975,023 km (0.045 R)
• M19: 34,368,016 km (0.069 R)
• M20: 37,204,542 km (0.117 R)
• M21: 54,639,126 km (0.061 R)
• M22: 54,818,494 km (0.12 R)
• M23: 63,700,269 km (0.089 R)
• M24: 69,632,423 km (0.074 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 455 - 12,613 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit