🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.19

Radius: 1.07

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.92 AU - 1.04 AU

Year: 354 Days

Day: 41.2 Hours

Environment

Temp: 33 °C

Axial Tilt: 14 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 65,260,691 km

• M1: 35,903 km (0.112 R)
• M2: 274,662 km (0.111 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.78

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.26 AU - 1.36 AU

Year: 548 Days

Day: 14.5 Hours

Environment

Temp: 10 °C

Axial Tilt: 40 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.21

Radius: 0.54

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.15 AU - 1.85 AU

Year: 671 Days

Day: 20.2 Hours

Environment

Temp: -41 °C

Axial Tilt: 44.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.29

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 2.03 AU - 2.61 AU

Year: 1291 Days

Day: 43.6 Hours

Environment

Temp: -91 °C

Axial Tilt: 23.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,260,691 km

• M1: 49,367 km (0.099 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.83

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 3.4 AU - 4.44 AU

Year: 2835 Days

Day: 13.3 Hours

Environment

Temp: -125 °C

Axial Tilt: 19.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,260,691 km

• M1: 34,557 km (0.09 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.09

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 3.99 AU - 4.39 AU

Year: 3133 Days

Day: 47.5 Hours

Environment

Temp: -131 °C

Axial Tilt: 8.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 6.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 655.2

Radius: 9.8

Gravity: 6.82 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 5.64 AU - 7.44 AU

Year: 6109 Days

Day: 6.4 Hours

Environment

Temp: -148 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 65,260,691 km

• M1: 121,922 km (0.106 R)
• M2: 518,207 km (0.108 R)
• M3: 849,716 km (0.111 R)
• M4: 1,418,487 km (0.106 R)
• M5: 1,966,314 km (0.119 R)
• M6: 2,306,500 km (0.096 R)
• M7: 3,313,294 km (0.087 R)
• M8: 3,798,888 km (0.11 R)
• M9: 4,485,094 km (0.079 R)
• M10: 6,265,009 km (0.074 R)
• M11: 6,766,461 km (0.079 R)
• M12: 7,258,489 km (0.038 R)
• M13: 7,887,847 km (0.114 R)
• M14: 8,920,222 km (0.11 R)
• M15: 9,598,947 km (0.107 R)
• M16: 12,453,873 km (0.116 R)
• M17: 15,468,869 km (0.038 R)
• M18: 16,385,754 km (0.085 R)
• M19: 19,145,835 km (0.108 R)
• M20: 21,446,500 km (0.063 R)
• M21: 21,821,991 km (0.117 R)
• M22: 23,685,382 km (0.109 R)
• M23: 24,167,386 km (0.097 R)
• M24: 24,655,823 km (0.093 R)
• M25: 25,906,013 km (0.076 R)
• M26: 27,285,455 km (0.085 R)
• M27: 28,351,788 km (0.103 R)
• M28: 29,077,787 km (0.073 R)
• M29: 31,330,731 km (0.108 R)
• M30: 32,009,157 km (0.113 R)
• M31: 32,895,824 km (0.062 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 822.3

Radius: 8

Gravity: 12.85 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 7.9 AU - 8.84 AU

Year: 8845 Days

Day: 11.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 65,260,691 km

• M1: 99,483 km (0.077 R)
• M2: 723,007 km (0.109 R)
• M3: 1,351,617 km (0.083 R)
• M4: 1,648,718 km (0.109 R)
• M5: 1,973,196 km (0.081 R)
• M6: 2,230,654 km (0.077 R)
• M7: 2,510,701 km (0.115 R)
• M8: 2,772,497 km (0.071 R)
• M9: 3,495,953 km (0.116 R)
• M10: 4,540,744 km (0.087 R)
• M11: 4,993,577 km (0.08 R)
• M12: 5,711,946 km (0.047 R)
• M13: 7,352,735 km (0.054 R)
• M14: 8,957,771 km (0.109 R)
• M15: 9,380,983 km (0.055 R)
• M16: 10,941,588 km (0.116 R)
• M17: 11,316,780 km (0.119 R)
• M18: 11,644,997 km (0.095 R)
• M19: 12,149,292 km (0.069 R)
• M20: 12,903,415 km (0.061 R)
• M21: 14,250,244 km (0.103 R)
• M22: 15,088,740 km (0.027 R)
• M23: 15,755,797 km (0.082 R)
• M24: 16,934,778 km (0.105 R)
• M25: 20,257,646 km (0.047 R)
• M26: 24,716,261 km (0.05 R)
• M27: 24,991,820 km (0.113 R)
• M28: 27,075,719 km (0.089 R)
• M29: 30,100,288 km (0.038 R)
• M30: 34,817,708 km (0.09 R)
• M31: 36,572,790 km (0.066 R)
• M32: 37,775,108 km (0.076 R)
• M33: 39,252,387 km (0.103 R)
• M34: 44,184,330 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 371.2

Radius: 3.8

Gravity: 25.71 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 13.2 AU - 17.14 AU

Year: 21581 Days

Day: 22.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 42.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 65,260,691 km

• M1: 52,060 km (0.105 R)
• M2: 184,005 km (0.112 R)
• M3: 446,849 km (0.074 R)
• M4: 915,389 km (0.103 R)
• M5: 1,066,184 km (0.029 R)
• M6: 1,330,823 km (0.072 R)
• M7: 1,654,253 km (0.106 R)
• M8: 1,952,701 km (0.096 R)
• M9: 3,827,013 km (0.108 R)
• M10: 5,124,475 km (0.064 R)
• M11: 6,478,037 km (0.072 R)
• M12: 10,838,067 km (0.08 R)
• M13: 13,036,258 km (0.097 R)
• M14: 15,589,445 km (0.119 R)
• M15: 15,740,389 km (0.08 R)
• M16: 16,431,381 km (0.065 R)
• M17: 16,666,250 km (0.12 R)
• M18: 18,039,259 km (0.108 R)
• M19: 20,462,146 km (0.096 R)
• M20: 22,995,586 km (0.102 R)
• M21: 23,387,832 km (0.042 R)
• M22: 24,693,522 km (0.11 R)
• M23: 26,473,288 km (0.097 R)
• M24: 31,233,043 km (0.052 R)
• M25: 32,444,786 km (0.089 R)
• M26: 35,090,873 km (0.102 R)
• M27: 39,254,332 km (0.102 R)
• M28: 40,237,938 km (0.057 R)
• M29: 40,379,756 km (0.087 R)
• M30: 41,526,723 km (0.104 R)
• M31: 48,224,519 km (0.106 R)
• M32: 50,004,734 km (0.114 R)
• M33: 50,497,659 km (0.081 R)
• M34: 53,524,024 km (0.111 R)
• M35: 54,039,837 km (0.107 R)
• M36: 59,198,421 km (0.079 R)
• M37: 61,613,678 km (0.108 R)
• M38: 61,802,172 km (0.106 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 249 - 15,372 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit