🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.73 AU - 0.79 AU

Year: 246 Days

Day: 27 Hours

Environment

Temp: 123 °C

Axial Tilt: 5.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 67,837,885 km

• M1: 32,912 km (0.099 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.34

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.96 AU - 1.42 AU

Year: 481 Days

Day: 13.6 Hours

Environment

Temp: 4 °C

Axial Tilt: 17.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1

Radius: 1

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.1 AU - 1.48 AU

Year: 543 Days

Day: 41.1 Hours

Environment

Temp: -7 °C

Axial Tilt: 38.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.59

Radius: 1.46

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 3.36 AU - 4.82 AU

Year: 3068 Days

Day: 13.1 Hours

Environment

Temp: -135 °C

Axial Tilt: 8.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 67,837,885 km

• M1: 119,529 km (0.067 R)
• M2: 537,505 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 306.2

Radius: 13

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 7.24 AU - 9.08 AU

Year: 8644 Days

Day: 6.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 67,837,885 km

• M1: 161,715 km (0.061 R)
• M2: 784,641 km (0.113 R)
• M3: 1,617,452 km (0.048 R)
• M4: 2,376,661 km (0.051 R)
• M5: 5,286,789 km (0.11 R)
• M6: 6,519,475 km (0.115 R)
• M7: 6,958,994 km (0.096 R)
• M8: 8,049,562 km (0.097 R)
• M9: 8,596,043 km (0.104 R)
• M10: 10,026,947 km (0.078 R)
• M11: 11,081,462 km (0.119 R)
• M12: 20,272,606 km (0.08 R)
• M13: 29,260,745 km (0.109 R)
• M14: 30,274,570 km (0.111 R)
• M15: 31,598,810 km (0.066 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 982.7

Radius: 6

Gravity: 27.3 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 11.4 AU - 13.5 AU

Year: 16291 Days

Day: 23.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 67,837,885 km

• M1: 74,799 km (0.118 R)
• M2: 262,694 km (0.103 R)
• M3: 563,535 km (0.052 R)
• M4: 807,380 km (0.058 R)
• M5: 1,008,290 km (0.117 R)
• M6: 1,228,947 km (0.089 R)
• M7: 2,456,547 km (0.108 R)
• M8: 3,145,146 km (0.074 R)
• M9: 3,534,250 km (0.119 R)
• M10: 4,896,189 km (0.117 R)
• M11: 5,228,146 km (0.079 R)
• M12: 7,164,541 km (0.075 R)
• M13: 7,448,179 km (0.072 R)
• M14: 7,641,310 km (0.091 R)
• M15: 8,241,048 km (0.093 R)
• M16: 9,421,375 km (0.117 R)
• M17: 10,347,685 km (0.051 R)
• M18: 11,914,274 km (0.113 R)
• M19: 12,788,524 km (0.099 R)
• M20: 13,347,272 km (0.116 R)
• M21: 13,849,472 km (0.068 R)
• M22: 14,215,837 km (0.067 R)
• M23: 15,198,545 km (0.108 R)
• M24: 20,420,409 km (0.076 R)
• M25: 21,669,700 km (0.049 R)
• M26: 22,362,937 km (0.103 R)
• M27: 30,129,759 km (0.056 R)
• M28: 30,868,773 km (0.109 R)
• M29: 31,368,130 km (0.113 R)
• M30: 40,702,140 km (0.038 R)
• M31: 48,134,461 km (0.046 R)
• M32: 67,060,088 km (0.099 R)
• M33: 72,407,913 km (0.074 R)
• M34: 73,068,088 km (0.097 R)
• M35: 73,954,755 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 486.9

Radius: 7.8

Gravity: 8 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 13.29 AU - 15.23 AU

Year: 19970 Days

Day: 20.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 67,837,885 km

• M1: 96,939 km (0.099 R)
• M2: 453,880 km (0.094 R)
• M3: 1,386,323 km (0.106 R)
• M4: 1,836,015 km (0.102 R)
• M5: 2,783,119 km (0.093 R)
• M6: 3,814,147 km (0.116 R)
• M7: 8,615,491 km (0.058 R)
• M8: 10,942,486 km (0.118 R)
• M9: 14,438,289 km (0.057 R)
• M10: 19,220,334 km (0.074 R)
• M11: 22,157,539 km (0.087 R)
• M12: 28,220,442 km (0.104 R)
• M13: 32,243,577 km (0.092 R)
• M14: 32,615,926 km (0.036 R)
• M15: 36,903,252 km (0.095 R)
• M16: 41,259,392 km (0.082 R)
• M17: 48,824,556 km (0.103 R)
• M18: 54,584,822 km (0.104 R)
• M19: 56,541,263 km (0.094 R)
• M20: 59,842,739 km (0.057 R)
• M21: 63,854,206 km (0.116 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 469 - 13,434 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit