🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.13

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.58 AU - 0.66 AU

Year: 186 Days

Day: 18 Hours

Environment

Temp: 189 °C

Axial Tilt: 47.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.74 AU - 0.9 AU

Year: 283 Days

Day: 43.5 Hours

Environment

Temp: 90 °C

Axial Tilt: 21.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.57

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.3 AU - 1.44 AU

Year: 611 Days

Day: 36.3 Hours

Environment

Temp: -34 °C

Axial Tilt: 25.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 218.4

Radius: 10

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 3.61 AU - 5.15 AU

Year: 3491 Days

Day: 7.6 Hours

Environment

Temp: -149 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 56,230,696 km

• M1: 130,449 km (0.11 R)
• M2: 481,855 km (0.056 R)
• M3: 920,625 km (0.081 R)
• M4: 1,378,544 km (0.114 R)
• M5: 1,818,362 km (0.11 R)
• M6: 2,495,741 km (0.075 R)
• M7: 4,507,833 km (0.087 R)
• M8: 7,168,281 km (0.105 R)
• M9: 9,503,055 km (0.104 R)
• M10: 10,623,244 km (0.061 R)
• M11: 11,140,105 km (0.089 R)
• M12: 13,936,388 km (0.062 R)
• M13: 14,288,242 km (0.109 R)
• M14: 16,041,529 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 819.6

Radius: 14.8

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 4.22 AU - 4.94 AU

Year: 3732 Days

Day: 10.7 Hours

Environment

Temp: -150 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 56,230,696 km

• M1: 184,454 km (0.117 R)
• M2: 803,341 km (0.094 R)
• M3: 1,307,186 km (0.084 R)
• M4: 2,124,888 km (0.116 R)
• M5: 3,361,165 km (0.095 R)
• M6: 5,138,088 km (0.066 R)
• M7: 6,518,278 km (0.11 R)
• M8: 7,180,548 km (0.056 R)
• M9: 7,992,266 km (0.077 R)
• M10: 8,827,022 km (0.12 R)
• M11: 11,865,804 km (0.108 R)
• M12: 13,050,469 km (0.098 R)
• M13: 13,545,938 km (0.087 R)
• M14: 15,379,858 km (0.037 R)
• M15: 16,556,894 km (0.055 R)
• M16: 17,020,797 km (0.057 R)
• M17: 19,665,089 km (0.106 R)
• M18: 20,715,416 km (0.091 R)
• M19: 21,665,063 km (0.068 R)
• M20: 22,290,681 km (0.056 R)
• M21: 22,785,551 km (0.113 R)
• M22: 24,688,436 km (0.104 R)
• M23: 25,910,800 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207.1

Radius: 10.8

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 8.95 AU - 11.11 AU

Year: 12096 Days

Day: 14.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 56,230,696 km

• M1: 135,685 km (0.1 R)
• M2: 834,756 km (0.067 R)
• M3: 1,197,531 km (0.103 R)
• M4: 1,628,522 km (0.114 R)
• M5: 2,515,937 km (0.095 R)
• M6: 3,297,885 km (0.113 R)
• M7: 3,699,406 km (0.1 R)
• M8: 4,058,740 km (0.099 R)
• M9: 5,460,173 km (0.027 R)
• M10: 6,524,711 km (0.084 R)
• M11: 8,723,052 km (0.047 R)
• M12: 12,088,256 km (0.111 R)
• M13: 12,562,032 km (0.113 R)
• M14: 14,231,844 km (0.086 R)
• M15: 16,682,107 km (0.034 R)
• M16: 17,602,433 km (0.027 R)
• M17: 18,143,379 km (0.099 R)
• M18: 19,401,049 km (0.092 R)
• M19: 22,323,892 km (0.052 R)
• M20: 26,661,333 km (0.058 R)
• M21: 31,827,994 km (0.099 R)
• M22: 33,653,986 km (0.104 R)
• M23: 34,803,795 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 285.2

Radius: 6.2

Gravity: 7.42 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 11.24 AU - 16.52 AU

Year: 19692 Days

Day: 23.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 42.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 56,230,696 km

• M1: 86,468 km (0.104 R)
• M2: 666,907 km (0.108 R)
• M3: 954,434 km (0.109 R)
• M4: 1,432,549 km (0.112 R)
• M5: 1,717,832 km (0.081 R)
• M6: 2,403,140 km (0.06 R)
• M7: 4,090,604 km (0.111 R)
• M8: 5,297,111 km (0.082 R)
• M9: 6,095,216 km (0.118 R)
• M10: 7,012,400 km (0.119 R)
• M11: 7,482,138 km (0.08 R)
• M12: 8,484,443 km (0.053 R)
• M13: 16,074,740 km (0.116 R)
• M14: 17,041,741 km (0.107 R)
• M15: 19,091,231 km (0.076 R)
• M16: 23,672,217 km (0.099 R)
• M17: 25,813,113 km (0.107 R)
• M18: 26,622,587 km (0.116 R)
• M19: 28,612,687 km (0.07 R)
• M20: 30,363,730 km (0.08 R)
• M21: 30,925,321 km (0.04 R)
• M22: 33,478,507 km (0.063 R)
• M23: 33,717,415 km (0.091 R)
• M24: 34,440,871 km (0.109 R)
• M25: 37,182,102 km (0.099 R)
• M26: 42,392,895 km (0.073 R)
• M27: 46,866,320 km (0.115 R)
• M28: 48,069,985 km (0.085 R)
• M29: 52,444,526 km (0.109 R)
• M30: 52,766,759 km (0.062 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: 372 - 11,906 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit