🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.21

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.55 AU - 0.65 AU

Year: 305 Days

Day: 33.2 Hours

Environment

Temp: -137 °C

Axial Tilt: 8.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.58

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.61 AU - 0.73 AU

Year: 360 Days

Day: 31.5 Hours

Environment

Temp: -136 °C

Axial Tilt: 21.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 902.7

Radius: 8.6

Gravity: 12.21 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.63 AU - 0.73 AU

Year: 368 Days

Day: 7 Hours

Environment

Temp: -134 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 89,757,849 km

• M1: 106,962 km (0.117 R)
• M2: 472,131 km (0.099 R)
• M3: 886,218 km (0.104 R)
• M4: 1,174,792 km (0.072 R)
• M5: 1,900,940 km (0.117 R)
• M6: 2,372,473 km (0.072 R)
• M7: 2,835,478 km (0.051 R)
• M8: 3,105,502 km (0.09 R)
• M9: 3,623,260 km (0.085 R)
• M10: 3,981,847 km (0.038 R)
• M11: 4,755,716 km (0.032 R)
• M12: 5,493,533 km (0.116 R)
• M13: 5,812,476 km (0.047 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 861.3

Radius: 8.1

Gravity: 13.13 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.01 AU - 1.35 AU

Year: 841 Days

Day: 8.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 89,757,849 km

• M1: 100,829 km (0.098 R)
• M2: 355,594 km (0.095 R)
• M3: 706,551 km (0.107 R)
• M4: 1,201,420 km (0.117 R)
• M5: 1,547,590 km (0.1 R)
• M6: 1,854,714 km (0.108 R)
• M7: 2,181,586 km (0.074 R)
• M8: 2,593,728 km (0.114 R)
• M9: 3,043,718 km (0.094 R)
• M10: 3,414,721 km (0.106 R)
• M11: 4,483,897 km (0.07 R)
• M12: 4,783,093 km (0.081 R)
• M13: 5,480,668 km (0.074 R)
• M14: 5,741,267 km (0.099 R)
• M15: 6,440,188 km (0.116 R)
• M16: 7,679,906 km (0.05 R)
• M17: 7,981,346 km (0.071 R)
• M18: 8,395,582 km (0.115 R)
• M19: 9,437,082 km (0.042 R)
• M20: 9,724,909 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 205.1

Radius: 10.2

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 2.01 AU - 2.21 AU

Year: 2011 Days

Day: 5.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 89,757,849 km

• M1: 126,859 km (0.105 R)
• M2: 573,558 km (0.055 R)
• M3: 1,398,890 km (0.12 R)
• M4: 1,746,406 km (0.1 R)
• M5: 2,184,279 km (0.047 R)
• M6: 2,524,015 km (0.105 R)
• M7: 3,169,979 km (0.107 R)
• M8: 3,858,279 km (0.112 R)
• M9: 4,238,257 km (0.069 R)
• M10: 5,171,150 km (0.099 R)
• M11: 5,972,695 km (0.097 R)
• M12: 6,347,138 km (0.062 R)
• M13: 6,690,615 km (0.111 R)
• M14: 7,591,045 km (0.101 R)
• M15: 8,057,491 km (0.079 R)
• M16: 8,406,054 km (0.116 R)
• M17: 8,764,790 km (0.08 R)
• M18: 9,691,698 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 985.9

Radius: 12.1

Gravity: 6.73 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 2.16 AU - 2.82 AU

Year: 2578 Days

Day: 13 Hours

Environment

Temp: -188 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 89,757,849 km

• M1: 150,944 km (0.113 R)
• M2: 583,731 km (0.056 R)
• M3: 968,945 km (0.104 R)
• M4: 1,639,892 km (0.103 R)
• M5: 2,201,033 km (0.072 R)
• M6: 2,695,903 km (0.078 R)
• M7: 3,141,256 km (0.075 R)
• M8: 3,892,088 km (0.073 R)
• M9: 4,621,228 km (0.094 R)
• M10: 5,313,417 km (0.112 R)
• M11: 5,856,906 km (0.068 R)
• M12: 7,395,371 km (0.067 R)
• M13: 8,040,886 km (0.099 R)
• M14: 9,781,906 km (0.109 R)
• M15: 10,842,554 km (0.105 R)
• M16: 11,676,413 km (0.086 R)
• M17: 12,329,408 km (0.117 R)
• M18: 13,098,939 km (0.107 R)
• M19: 13,756,422 km (0.072 R)
• M20: 16,232,267 km (0.078 R)
• M21: 17,212,133 km (0.057 R)
• M22: 17,943,965 km (0.065 R)
• M23: 19,050,990 km (0.088 R)
• M24: 20,017,990 km (0.064 R)
• M25: 20,513,608 km (0.088 R)

Asteroid Belt

Center: 3.2 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 3.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437.2

Radius: 10.8

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 3.56 AU - 4.24 AU

Year: 5052 Days

Day: 12.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 162.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 89,757,849 km

• M1: 134,339 km (0.047 R)
• M2: 586,872 km (0.114 R)
• M3: 940,671 km (0.071 R)
• M4: 1,485,956 km (0.105 R)
• M5: 2,337,916 km (0.112 R)
• M6: 2,890,530 km (0.11 R)
• M7: 3,754,458 km (0.12 R)
• M8: 4,683,909 km (0.103 R)
• M9: 5,295,316 km (0.078 R)
• M10: 6,523,664 km (0.076 R)
• M11: 6,961,986 km (0.091 R)
• M12: 7,320,123 km (0.103 R)
• M13: 7,863,163 km (0.064 R)
• M14: 9,106,322 km (0.106 R)
• M15: 9,855,807 km (0.063 R)
• M16: 12,024,976 km (0.116 R)
• M17: 12,494,265 km (0.114 R)
• M18: 14,547,645 km (0.096 R)
• M19: 15,188,821 km (0.08 R)
• M20: 15,848,997 km (0.114 R)
• M21: 18,372,115 km (0.055 R)
• M22: 19,248,459 km (0.052 R)
• M23: 20,415,621 km (0.096 R)
• M24: 22,748,451 km (0.034 R)
• M25: 25,329,762 km (0.111 R)
• M26: 25,713,929 km (0.026 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 982

Radius: 6.1

Gravity: 26.39 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 8.92 AU - 11.5 AU

Year: 21402 Days

Day: 18.8 Hours

Environment

Temp: -240 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 89,757,849 km

• M1: 77,492 km (0.081 R)
• M2: 422,913 km (0.115 R)
• M3: 930,349 km (0.117 R)
• M4: 1,562,849 km (0.114 R)
• M5: 4,054,252 km (0.105 R)
• M6: 4,436,774 km (0.091 R)
• M7: 5,074,958 km (0.062 R)
• M8: 6,256,781 km (0.102 R)
• M9: 6,532,191 km (0.069 R)
• M10: 7,206,279 km (0.057 R)
• M11: 8,412,636 km (0.072 R)
• M12: 12,685,899 km (0.099 R)
• M13: 17,664,517 km (0.083 R)
• M14: 18,682,530 km (0.071 R)
• M15: 19,254,144 km (0.081 R)
• M16: 20,034,147 km (0.118 R)
• M17: 20,331,996 km (0.12 R)
• M18: 21,970,841 km (0.073 R)
• M19: 22,181,774 km (0.044 R)
• M20: 22,822,502 km (0.106 R)
• M21: 25,625,367 km (0.116 R)
• M22: 26,928,365 km (0.107 R)
• M23: 27,291,140 km (0.092 R)
• M24: 31,903,541 km (0.051 R)
• M25: 32,309,849 km (0.091 R)
• M26: 33,549,417 km (0.077 R)
• M27: 37,009,616 km (0.092 R)
• M28: 37,759,251 km (0.067 R)
• M29: 40,383,945 km (0.1 R)
• M30: 46,859,439 km (0.09 R)
• M31: 47,913,356 km (0.11 R)
• M32: 48,446,074 km (0.112 R)
• M33: 49,886,402 km (0.052 R)
• M34: 53,993,761 km (0.101 R)
• M35: 57,517,539 km (0.111 R)
• M36: 60,361,993 km (0.092 R)
• M37: 62,873,591 km (0.065 R)
• M38: 64,802,357 km (0.107 R)
• M39: 69,910,077 km (0.075 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 389 - 15,868 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit