🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.12

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.83 AU - 0.93 AU

Year: 306 Days

Day: 41.8 Hours

Environment

Temp: 123 °C

Axial Tilt: 49.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 61,304,095 km

• M1: 49,966 km (0.056 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.75

Radius: 0.89

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.78 AU - 1.08 AU

Year: 333 Days

Day: 42.8 Hours

Environment

Temp: 48 °C

Axial Tilt: 3.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.82

Radius: 1.88

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.17 AU - 1.43 AU

Year: 550 Days

Day: 32.4 Hours

Environment

Temp: 3 °C

Axial Tilt: 7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.55

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.5 AU - 1.72 AU

Year: 758 Days

Day: 19.6 Hours

Environment

Temp: -46 °C

Axial Tilt: 12 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 61,304,095 km

• M1: 1,285,644 km (0.116 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.42

Radius: 1.64

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 2.1 AU - 2.84 AU

Year: 1440 Days

Day: 38.5 Hours

Environment

Temp: -90 °C

Axial Tilt: 3.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.17

Radius: 0.49

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 3.93 AU - 4.93 AU

Year: 3458 Days

Day: 41.3 Hours

Environment

Temp: -140 °C

Axial Tilt: 34.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 61,304,095 km

• M1: 11,669 km (0.054 R)
• M2: 49,966 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 366.3

Radius: 12

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 6.75 AU - 7.87 AU

Year: 7330 Days

Day: 9.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 61,304,095 km

• M1: 149,448 km (0.12 R)
• M2: 671,246 km (0.038 R)
• M3: 1,133,054 km (0.077 R)
• M4: 1,667,418 km (0.085 R)
• M5: 2,163,933 km (0.081 R)
• M6: 2,830,691 km (0.101 R)
• M7: 3,334,686 km (0.066 R)
• M8: 3,718,255 km (0.057 R)
• M9: 5,917,643 km (0.044 R)
• M10: 6,419,095 km (0.117 R)
• M11: 7,224,231 km (0.074 R)
• M12: 10,762,370 km (0.117 R)
• M13: 11,226,423 km (0.083 R)
• M14: 11,703,789 km (0.118 R)
• M15: 13,429,251 km (0.083 R)
• M16: 14,022,257 km (0.113 R)
• M17: 15,906,293 km (0.112 R)
• M18: 17,002,396 km (0.108 R)
• M19: 17,632,802 km (0.07 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 402.6

Radius: 12.6

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 8.55 AU - 9.27 AU

Year: 9863 Days

Day: 12.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 61,304,095 km

• M1: 156,779 km (0.106 R)
• M2: 578,645 km (0.043 R)
• M3: 1,360,293 km (0.109 R)
• M4: 2,115,463 km (0.058 R)
• M5: 2,655,063 km (0.113 R)
• M6: 4,039,143 km (0.095 R)
• M7: 5,956,688 km (0.027 R)
• M8: 7,418,409 km (0.095 R)
• M9: 9,019,256 km (0.026 R)
• M10: 9,419,430 km (0.095 R)
• M11: 12,452,676 km (0.101 R)
• M12: 14,824,551 km (0.117 R)
• M13: 19,546,458 km (0.113 R)
• M14: 20,294,148 km (0.101 R)
• M15: 24,924,800 km (0.104 R)
• M16: 25,626,564 km (0.109 R)
• M17: 28,376,173 km (0.115 R)
• M18: 32,756,399 km (0.092 R)
• M19: 38,490,635 km (0.074 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 371.7

Radius: 4.5

Gravity: 18.36 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 12.72 AU - 15.48 AU

Year: 19635 Days

Day: 24.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 61,304,095 km

• M1: 63,579 km (0.081 R)
• M2: 213,476 km (0.111 R)
• M3: 395,537 km (0.118 R)
• M4: 871,258 km (0.118 R)
• M5: 1,302,100 km (0.091 R)
• M6: 1,444,218 km (0.105 R)
• M7: 2,358,560 km (0.08 R)
• M8: 3,859,475 km (0.08 R)
• M9: 5,453,291 km (0.086 R)
• M10: 7,620,516 km (0.063 R)
• M11: 8,470,680 km (0.054 R)
• M12: 9,434,839 km (0.1 R)
• M13: 10,190,607 km (0.057 R)
• M14: 11,161,497 km (0.102 R)
• M15: 13,889,863 km (0.091 R)
• M16: 16,111,840 km (0.101 R)
• M17: 17,664,517 km (0.074 R)
• M18: 20,795,151 km (0.108 R)
• M19: 26,206,256 km (0.059 R)
• M20: 27,369,230 km (0.039 R)
• M21: 35,585,593 km (0.089 R)
• M22: 36,099,313 km (0.116 R)
• M23: 40,666,835 km (0.099 R)
• M24: 42,080,086 km (0.112 R)
• M25: 42,798,904 km (0.093 R)
• M26: 43,379,643 km (0.096 R)
• M27: 46,363,073 km (0.113 R)
• M28: 50,281,041 km (0.071 R)
• M29: 51,416,339 km (0.111 R)
• M30: 52,072,625 km (0.096 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 406 - 11,825 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit