🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.7

Radius: 14.1

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.67 AU - 0.73 AU

Year: 397 Days

Day: 9.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 40,494,785 km

• M1: 176,226 km (0.045 R)
• M2: 671,096 km (0.118 R)
• M3: 1,235,678 km (0.117 R)
• M4: 1,686,267 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.6

Radius: 8.3

Gravity: 14.09 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.61 AU - 1.01 AU

Year: 494 Days

Day: 7 Hours

Environment

Temp: -160 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,494,785 km

• M1: 103,223 km (0.099 R)
• M2: 386,710 km (0.084 R)
• M3: 728,990 km (0.099 R)
• M4: 1,018,462 km (0.086 R)
• M5: 1,527,245 km (0.114 R)
• M6: 2,331,483 km (0.088 R)
• M7: 3,167,885 km (0.091 R)
• M8: 4,132,342 km (0.082 R)
• M9: 4,682,413 km (0.114 R)
• M10: 5,437,733 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851.4

Radius: 11.9

Gravity: 6.01 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.77 AU - 1.19 AU

Year: 658 Days

Day: 6.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 40,494,785 km

• M1: 148,251 km (0.109 R)
• M2: 664,364 km (0.117 R)
• M3: 1,314,965 km (0.077 R)
• M4: 1,733,091 km (0.087 R)
• M5: 2,114,566 km (0.113 R)
• M6: 2,574,729 km (0.119 R)
• M7: 3,027,113 km (0.119 R)
• M8: 3,505,377 km (0.079 R)
• M9: 4,078,936 km (0.089 R)
• M10: 4,533,264 km (0.116 R)
• M11: 6,244,066 km (0.105 R)
• M12: 8,154,730 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 979.4

Radius: 13.7

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.93 AU - 1.05 AU

Year: 668 Days

Day: 8.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,494,785 km

• M1: 170,392 km (0.044 R)
• M2: 619,335 km (0.09 R)
• M3: 1,159,084 km (0.042 R)
• M4: 2,149,871 km (0.114 R)
• M5: 2,654,764 km (0.077 R)
• M6: 3,466,183 km (0.055 R)
• M7: 3,893,733 km (0.038 R)
• M8: 4,996,270 km (0.064 R)
• M9: 5,620,990 km (0.119 R)
• M10: 6,052,730 km (0.099 R)
• M11: 6,763,769 km (0.073 R)
• M12: 7,207,625 km (0.099 R)
• M13: 7,789,860 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 664.6

Radius: 14.4

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.08 AU - 1.32 AU

Year: 892 Days

Day: 9.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,494,785 km

• M1: 179,069 km (0.068 R)
• M2: 828,922 km (0.092 R)
• M3: 1,319,752 km (0.104 R)
• M4: 1,881,642 km (0.118 R)
• M5: 2,404,187 km (0.113 R)
• M6: 2,874,673 km (0.115 R)
• M7: 3,719,751 km (0.061 R)
• M8: 4,437,372 km (0.09 R)
• M9: 5,007,938 km (0.117 R)
• M10: 5,588,228 km (0.099 R)
• M11: 7,580,423 km (0.039 R)
• M12: 8,044,925 km (0.104 R)
• M13: 9,031,523 km (0.053 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 854.3

Radius: 11.7

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 3.84 AU - 5.08 AU

Year: 6388 Days

Day: 13.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 40,494,785 km

• M1: 147,952 km (0.077 R)
• M2: 672,592 km (0.043 R)
• M3: 1,578,856 km (0.113 R)
• M4: 2,061,010 km (0.05 R)
• M5: 3,092,936 km (0.118 R)
• M6: 3,713,169 km (0.061 R)
• M7: 4,414,783 km (0.12 R)
• M8: 5,353,061 km (0.117 R)
• M9: 6,949,120 km (0.113 R)
• M10: 9,231,834 km (0.092 R)
• M11: 10,810,241 km (0.092 R)
• M12: 14,794,781 km (0.073 R)
• M13: 18,871,472 km (0.1 R)
• M14: 19,665,687 km (0.113 R)
• M15: 20,936,820 km (0.052 R)
• M16: 23,724,876 km (0.085 R)
• M17: 25,078,437 km (0.094 R)
• M18: 31,309,189 km (0.073 R)
• M19: 35,700,335 km (0.075 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 581.5

Radius: 7.1

Gravity: 11.54 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 4.9 AU - 8.14 AU

Year: 11292 Days

Day: 19.7 Hours

Environment

Temp: -235 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 40,494,785 km

• M1: 89,011 km (0.086 R)
• M2: 1,110,016 km (0.094 R)
• M3: 1,388,418 km (0.108 R)
• M4: 1,609,224 km (0.118 R)
• M5: 2,596,869 km (0.1 R)
• M6: 3,139,012 km (0.094 R)
• M7: 4,273,114 km (0.113 R)
• M8: 5,287,088 km (0.034 R)
• M9: 5,867,976 km (0.073 R)
• M10: 6,119,151 km (0.075 R)
• M11: 8,441,359 km (0.041 R)
• M12: 8,995,918 km (0.092 R)
• M13: 10,541,264 km (0.104 R)
• M14: 13,087,570 km (0.116 R)
• M15: 15,603,507 km (0.116 R)
• M16: 19,356,768 km (0.025 R)
• M17: 20,813,552 km (0.12 R)
• M18: 21,738,815 km (0.103 R)
• M19: 23,133,366 km (0.088 R)
• M20: 26,292,873 km (0.108 R)
• M21: 29,834,154 km (0.11 R)
• M22: 35,782,165 km (0.097 R)
• M23: 37,969,436 km (0.086 R)
• M24: 46,894,145 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 668.9

Radius: 3.2

Gravity: 65.32 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 5.74 AU - 7.64 AU

Year: 11736 Days

Day: 24 Hours

Environment

Temp: -222 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 40,494,785 km

• M1: 40,391 km (0.082 R)
• M2: 143,016 km (0.105 R)
• M3: 277,354 km (0.058 R)
• M4: 469,139 km (0.078 R)
• M5: 666,459 km (0.105 R)
• M6: 916,437 km (0.071 R)
• M7: 1,569,581 km (0.081 R)
• M8: 2,872,728 km (0.087 R)
• M9: 3,657,070 km (0.109 R)
• M10: 5,186,109 km (0.075 R)
• M11: 5,424,568 km (0.036 R)
• M12: 5,886,975 km (0.083 R)
• M13: 6,260,072 km (0.107 R)
• M14: 8,181,358 km (0.109 R)
• M15: 8,932,489 km (0.037 R)
• M16: 11,009,207 km (0.083 R)
• M17: 13,964,662 km (0.104 R)
• M18: 16,300,034 km (0.111 R)
• M19: 18,803,405 km (0.099 R)
• M20: 40,145,037 km (0.11 R)
• M21: 43,117,996 km (0.096 R)
• M22: 49,345,905 km (0.082 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 191.4

Radius: 3.9

Gravity: 12.58 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 7.7 AU - 7.84 AU

Year: 14690 Days

Day: 18.7 Hours

Environment

Temp: -239 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,494,785 km

• M1: 62,981 km (0.072 R)
• M2: 461,809 km (0.06 R)
• M3: 759,359 km (0.05 R)
• M4: 2,411,069 km (0.1 R)
• M5: 2,939,299 km (0.114 R)
• M6: 6,704,677 km (0.085 R)
• M7: 7,697,708 km (0.065 R)
• M8: 9,410,753 km (0.049 R)
• M9: 12,158,866 km (0.1 R)
• M10: 28,658,165 km (0.059 R)
• M11: 28,851,146 km (0.098 R)
• M12: 29,239,951 km (0.109 R)
• M13: 32,581,818 km (0.093 R)
• M14: 33,965,149 km (0.107 R)
• M15: 37,191,527 km (0.118 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 532 - 11,620 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit