🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 786.5

Radius: 12.4

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.72 AU - 0.8 AU

Year: 449 Days

Day: 13.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 164.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,550,847 km

• M1: 154,235 km (0.061 R)
• M2: 550,371 km (0.074 R)
• M3: 960,867 km (0.118 R)
• M4: 1,419,085 km (0.064 R)
• M5: 1,958,236 km (0.064 R)
• M6: 2,445,476 km (0.074 R)
• M7: 2,936,307 km (0.071 R)
• M8: 3,371,338 km (0.112 R)
• M9: 4,050,362 km (0.117 R)
• M10: 4,606,866 km (0.08 R)
• M11: 5,344,833 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658

Radius: 13.7

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1 AU - 1.08 AU

Year: 719 Days

Day: 8.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,550,847 km

• M1: 170,542 km (0.107 R)
• M2: 793,916 km (0.092 R)
• M3: 1,239,119 km (0.117 R)
• M4: 2,006,407 km (0.038 R)
• M5: 2,778,930 km (0.092 R)
• M6: 3,482,489 km (0.055 R)
• M7: 4,074,747 km (0.101 R)
• M8: 4,602,977 km (0.082 R)
• M9: 5,037,559 km (0.026 R)
• M10: 7,037,981 km (0.054 R)
• M11: 7,594,486 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448.6

Radius: 14.3

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.04 AU - 1.56 AU

Year: 1005 Days

Day: 5.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 69,550,847 km

• M1: 177,872 km (0.087 R)
• M2: 665,711 km (0.064 R)
• M3: 1,159,533 km (0.093 R)
• M4: 1,760,468 km (0.098 R)
• M5: 3,255,848 km (0.052 R)
• M6: 4,316,198 km (0.096 R)
• M7: 6,087,736 km (0.072 R)
• M8: 8,031,760 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466.3

Radius: 10.9

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.66 AU - 1.92 AU

Year: 1624 Days

Day: 5.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,550,847 km

• M1: 138,228 km (0.097 R)
• M2: 523,593 km (0.09 R)
• M3: 918,381 km (0.066 R)
• M4: 1,753,885 km (0.062 R)
• M5: 2,101,700 km (0.065 R)
• M6: 3,299,979 km (0.103 R)
• M7: 3,738,002 km (0.119 R)
• M8: 5,208,250 km (0.091 R)
• M9: 5,870,968 km (0.057 R)
• M10: 7,235,600 km (0.1 R)
• M11: 10,317,915 km (0.106 R)
• M12: 12,552,757 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 566.3

Radius: 10.4

Gravity: 5.24 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.89 AU - 2.25 AU

Year: 2020 Days

Day: 9.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 176.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 69,550,847 km

• M1: 146,606 km (0.12 R)
• M2: 676,332 km (0.118 R)
• M3: 1,275,322 km (0.077 R)
• M4: 1,785,750 km (0.114 R)
• M5: 2,178,594 km (0.111 R)
• M6: 2,629,183 km (0.057 R)
• M7: 3,446,735 km (0.068 R)
• M8: 3,860,971 km (0.116 R)
• M9: 4,308,269 km (0.064 R)
• M10: 4,707,247 km (0.081 R)
• M11: 5,419,781 km (0.101 R)
• M12: 6,686,726 km (0.094 R)
• M13: 7,445,636 km (0.105 R)
• M14: 9,897,994 km (0.081 R)
• M15: 10,488,905 km (0.082 R)
• M16: 11,066,203 km (0.07 R)
• M17: 13,297,156 km (0.063 R)
• M18: 14,233,190 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 963.2

Radius: 12.7

Gravity: 5.97 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 2.81 AU - 4.35 AU

Year: 4594 Days

Day: 11 Hours

Environment

Temp: -219 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 69,550,847 km

• M1: 166,652 km (0.1 R)
• M2: 661,073 km (0.104 R)
• M3: 1,171,351 km (0.099 R)
• M4: 1,569,282 km (0.058 R)
• M5: 2,776,686 km (0.037 R)
• M6: 4,206,842 km (0.11 R)
• M7: 6,625,839 km (0.065 R)
• M8: 7,203,287 km (0.116 R)
• M9: 7,851,046 km (0.067 R)
• M10: 8,615,940 km (0.058 R)
• M11: 9,346,277 km (0.068 R)
• M12: 10,205,866 km (0.08 R)
• M13: 13,419,527 km (0.059 R)
• M14: 14,796,127 km (0.08 R)
• M15: 15,548,155 km (0.102 R)
• M16: 18,283,852 km (0.069 R)
• M17: 19,627,540 km (0.078 R)
• M18: 21,913,096 km (0.117 R)
• M19: 23,506,164 km (0.092 R)
• M20: 27,781,521 km (0.11 R)
• M21: 30,010,679 km (0.108 R)
• M22: 31,877,810 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 188.6

Radius: 8.4

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 3.59 AU - 4.13 AU

Year: 5144 Days

Day: 12.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,550,847 km

• M1: 105,167 km (0.09 R)
• M2: 487,839 km (0.111 R)
• M3: 2,252,196 km (0.118 R)
• M4: 2,684,384 km (0.102 R)
• M5: 3,328,104 km (0.109 R)
• M6: 4,646,809 km (0.065 R)
• M7: 5,423,372 km (0.096 R)
• M8: 7,661,954 km (0.1 R)
• M9: 9,627,670 km (0.038 R)
• M10: 12,334,195 km (0.088 R)
• M11: 14,048,886 km (0.086 R)
• M12: 16,539,391 km (0.067 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 365.3

Radius: 3.7

Gravity: 26.68 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 5.13 AU - 6.31 AU

Year: 9279 Days

Day: 20.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 69,550,847 km

• M1: 47,123 km (0.078 R)
• M2: 247,285 km (0.086 R)
• M3: 764,894 km (0.091 R)
• M4: 1,947,166 km (0.102 R)
• M5: 5,482,313 km (0.065 R)
• M6: 7,067,153 km (0.104 R)
• M7: 7,401,953 km (0.069 R)
• M8: 8,063,325 km (0.111 R)
• M9: 8,387,653 km (0.102 R)
• M10: 8,890,601 km (0.088 R)
• M11: 10,376,856 km (0.044 R)
• M12: 12,231,272 km (0.076 R)
• M13: 15,378,661 km (0.063 R)
• M14: 21,011,021 km (0.086 R)
• M15: 23,783,518 km (0.112 R)
• M16: 29,944,557 km (0.079 R)
• M17: 33,441,108 km (0.067 R)
• M18: 34,276,762 km (0.102 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 720.2

Radius: 5.2

Gravity: 26.63 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 8.5 AU - 8.66 AU

Year: 17046 Days

Day: 17.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 69,550,847 km

• M1: 65,823 km (0.085 R)
• M2: 637,437 km (0.051 R)
• M3: 2,134,762 km (0.073 R)
• M4: 3,527,518 km (0.055 R)
• M5: 3,877,577 km (0.112 R)
• M6: 4,412,539 km (0.063 R)
• M7: 9,445,759 km (0.073 R)
• M8: 9,666,865 km (0.078 R)
• M9: 10,527,053 km (0.109 R)
• M10: 14,119,047 km (0.042 R)
• M11: 17,192,386 km (0.106 R)
• M12: 18,451,401 km (0.096 R)
• M13: 27,881,004 km (0.11 R)
• M14: 28,451,121 km (0.088 R)
• M15: 34,847,029 km (0.088 R)
• M16: 38,097,491 km (0.118 R)
• M17: 44,881,306 km (0.062 R)
• M18: 46,137,778 km (0.099 R)
• M19: 47,256,322 km (0.109 R)
• M20: 48,229,306 km (0.112 R)
• M21: 60,017,469 km (0.08 R)
• M22: 65,464,477 km (0.028 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 256 - 18,243 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit