🌌 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: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466.9

Radius: 13

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.73 AU - 0.87 AU

Year: 485 Days

Day: 8.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 87,147,170 km

• M1: 161,715 km (0.116 R)
• M2: 626,067 km (0.058 R)
• M3: 1,333,216 km (0.112 R)
• M4: 2,247,558 km (0.111 R)
• M5: 2,748,412 km (0.112 R)
• M6: 3,580,625 km (0.112 R)
• M7: 4,069,511 km (0.066 R)
• M8: 5,014,521 km (0.079 R)
• M9: 5,580,001 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 730.4

Radius: 11.8

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.71 AU - 2.17 AU

Year: 1833 Days

Day: 8.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 87,147,170 km

• M1: 147,803 km (0.049 R)
• M2: 617,540 km (0.083 R)
• M3: 1,082,490 km (0.039 R)
• M4: 1,462,020 km (0.073 R)
• M5: 1,999,675 km (0.111 R)
• M6: 2,385,936 km (0.087 R)
• M7: 2,866,295 km (0.091 R)
• M8: 3,312,845 km (0.072 R)
• M9: 4,042,134 km (0.113 R)
• M10: 4,750,032 km (0.106 R)
• M11: 5,288,883 km (0.07 R)
• M12: 6,111,821 km (0.11 R)
• M13: 6,671,467 km (0.112 R)
• M14: 7,320,721 km (0.105 R)
• M15: 7,776,696 km (0.073 R)
• M16: 8,191,231 km (0.119 R)
• M17: 10,454,348 km (0.068 R)
• M18: 10,923,337 km (0.083 R)
• M19: 11,981,443 km (0.088 R)
• M20: 14,477,184 km (0.085 R)
• M21: 15,060,466 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 685.3

Radius: 10.3

Gravity: 6.46 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 2.45 AU - 3.37 AU

Year: 3367 Days

Day: 6 Hours

Environment

Temp: -212 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 87,147,170 km

• M1: 139,874 km (0.07 R)
• M2: 577,149 km (0.082 R)
• M3: 898,485 km (0.117 R)
• M4: 1,296,864 km (0.11 R)
• M5: 2,600,909 km (0.083 R)
• M6: 2,960,691 km (0.115 R)
• M7: 5,037,559 km (0.107 R)
• M8: 5,600,645 km (0.059 R)
• M9: 6,035,975 km (0.104 R)
• M10: 6,641,697 km (0.082 R)
• M11: 7,098,868 km (0.052 R)
• M12: 8,351,451 km (0.055 R)
• M13: 9,592,215 km (0.08 R)
• M14: 10,417,547 km (0.091 R)
• M15: 10,993,648 km (0.083 R)
• M16: 13,561,047 km (0.079 R)
• M17: 14,099,001 km (0.098 R)
• M18: 17,401,224 km (0.075 R)
• M19: 19,661,947 km (0.031 R)
• M20: 20,542,032 km (0.09 R)
• M21: 22,925,724 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.9

Radius: 8.8

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 3 AU - 3.42 AU

Year: 3901 Days

Day: 9.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 87,147,170 km

• M1: 109,655 km (0.105 R)
• M2: 450,290 km (0.104 R)
• M3: 728,392 km (0.106 R)
• M4: 1,093,710 km (0.085 R)
• M5: 1,484,908 km (0.09 R)
• M6: 1,917,695 km (0.115 R)
• M7: 2,388,928 km (0.097 R)
• M8: 2,885,893 km (0.065 R)
• M9: 3,412,926 km (0.084 R)
• M10: 3,981,996 km (0.114 R)
• M11: 5,184,165 km (0.079 R)
• M12: 6,268,300 km (0.095 R)
• M13: 6,583,353 km (0.104 R)
• M14: 6,999,535 km (0.111 R)
• M15: 7,370,238 km (0.098 R)
• M16: 9,686,462 km (0.119 R)
• M17: 10,622,646 km (0.073 R)
• M18: 12,404,506 km (0.092 R)
• M19: 13,366,271 km (0.059 R)
• M20: 15,593,484 km (0.046 R)
• M21: 18,229,997 km (0.061 R)
• M22: 19,592,983 km (0.114 R)
• M23: 21,150,147 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.4

Radius: 11.2

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 3.12 AU - 4.7 AU

Year: 5244 Days

Day: 9.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 87,147,170 km

• M1: 139,724 km (0.059 R)
• M2: 541,694 km (0.094 R)
• M3: 1,446,013 km (0.034 R)
• M4: 1,894,956 km (0.067 R)
• M5: 2,762,624 km (0.118 R)
• M6: 3,157,263 km (0.108 R)
• M7: 3,809,510 km (0.095 R)
• M8: 4,499,006 km (0.078 R)
• M9: 5,103,531 km (0.116 R)
• M10: 5,613,810 km (0.04 R)
• M11: 6,251,845 km (0.091 R)
• M12: 7,108,143 km (0.083 R)
• M13: 8,382,268 km (0.066 R)
• M14: 9,675,242 km (0.06 R)
• M15: 12,053,250 km (0.066 R)
• M16: 15,368,788 km (0.098 R)
• M17: 19,113,970 km (0.065 R)
• M18: 21,558,848 km (0.098 R)
• M19: 23,892,126 km (0.051 R)
• M20: 24,520,587 km (0.108 R)
• M21: 31,052,778 km (0.093 R)

Asteroid Belt

Center: 5.29 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 6.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 538.2

Radius: 3.9

Gravity: 35.38 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 5.58 AU - 7.76 AU

Year: 11684 Days

Day: 16.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 87,147,170 km

• M1: 49,666 km (0.118 R)
• M2: 280,945 km (0.096 R)
• M3: 1,522,906 km (0.05 R)
• M4: 4,544,933 km (0.046 R)
• M5: 5,503,257 km (0.057 R)
• M6: 6,029,692 km (0.059 R)
• M7: 6,743,722 km (0.055 R)
• M8: 6,940,593 km (0.087 R)
• M9: 7,809,757 km (0.103 R)
• M10: 8,564,628 km (0.084 R)
• M11: 9,126,069 km (0.104 R)
• M12: 10,530,493 km (0.049 R)
• M13: 13,324,084 km (0.074 R)
• M14: 15,190,467 km (0.104 R)
• M15: 15,803,369 km (0.084 R)
• M16: 17,965,208 km (0.09 R)
• M17: 20,072,593 km (0.102 R)
• M18: 28,482,687 km (0.101 R)
• M19: 29,204,646 km (0.083 R)
• M20: 33,451,879 km (0.111 R)
• M21: 33,794,608 km (0.113 R)
• M22: 34,720,170 km (0.088 R)
• M23: 43,686,767 km (0.093 R)
• M24: 43,959,484 km (0.112 R)
• M25: 46,607,366 km (0.06 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 779.7

Radius: 4.6

Gravity: 36.85 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 9.52 AU - 11.42 AU

Year: 22978 Days

Day: 16.2 Hours

Environment

Temp: -241 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 87,147,170 km

• M1: 57,296 km (0.082 R)
• M2: 223,200 km (0.061 R)
• M3: 934,837 km (0.113 R)
• M4: 1,216,530 km (0.081 R)
• M5: 2,479,884 km (0.107 R)
• M6: 2,779,229 km (0.088 R)
• M7: 3,420,107 km (0.108 R)
• M8: 3,664,549 km (0.073 R)
• M9: 4,613,150 km (0.112 R)
• M10: 5,424,568 km (0.097 R)
• M11: 8,046,271 km (0.095 R)
• M12: 8,479,058 km (0.111 R)
• M13: 8,927,103 km (0.119 R)
• M14: 10,492,645 km (0.08 R)
• M15: 11,340,117 km (0.12 R)
• M16: 12,659,421 km (0.038 R)
• M17: 13,770,783 km (0.08 R)
• M18: 13,923,672 km (0.067 R)
• M19: 14,626,034 km (0.114 R)
• M20: 16,787,125 km (0.06 R)
• M21: 19,534,789 km (0.026 R)
• M22: 20,216,357 km (0.109 R)
• M23: 24,530,460 km (0.089 R)
• M24: 30,185,858 km (0.072 R)
• M25: 30,703,766 km (0.098 R)
• M26: 36,213,605 km (0.101 R)
• M27: 37,240,894 km (0.116 R)
• M28: 40,753,302 km (0.087 R)
• M29: 48,075,819 km (0.08 R)
• M30: 63,123,420 km (0.075 R)
• M31: 67,431,839 km (0.101 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 350 - 15,384 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit