🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.54

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.71 AU - 0.93 AU

Year: 281 Days

Day: 31.4 Hours

Environment

Temp: 82 °C

Axial Tilt: 39.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.86

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.77 AU - 0.95 AU

Year: 302 Days

Day: 28.3 Hours

Environment

Temp: 45 °C

Axial Tilt: 20.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.73

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.06 AU - 1.2 AU

Year: 455 Days

Day: 37.3 Hours

Environment

Temp: -5 °C

Axial Tilt: 9.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 84,850,191 km

• M1: 57,446 km (0.025 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.16 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.8

Radius: 1.51

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.03 AU - 1.29 AU

Year: 473 Days

Day: 17 Hours

Environment

Temp: 7 °C

Axial Tilt: 34.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 84,850,191 km

• M1: 473,477 km (0.106 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.72

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.05 AU - 1.37 AU

Year: 504 Days

Day: 43 Hours

Environment

Temp: -16 °C

Axial Tilt: 25.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 84,850,191 km

• M1: 55,501 km (0.099 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.91

Radius: 0.96

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.13 AU - 1.45 AU

Year: 555 Days

Day: 27.2 Hours

Environment

Temp: -39 °C

Axial Tilt: 19.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.5

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.21 AU - 1.65 AU

Year: 648 Days

Day: 30.8 Hours

Environment

Temp: -36 °C

Axial Tilt: 29 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.44

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 3.07 AU - 3.83 AU

Year: 2427 Days

Day: 28 Hours

Environment

Temp: -118 °C

Axial Tilt: 19.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.19 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 8.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262

Radius: 8.9

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 7.38 AU - 10.48 AU

Year: 10107 Days

Day: 10.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 84,850,191 km

• M1: 110,702 km (0.038 R)
• M2: 552,465 km (0.081 R)
• M3: 1,016,667 km (0.055 R)
• M4: 1,377,497 km (0.027 R)
• M5: 1,952,701 km (0.114 R)
• M6: 6,344,296 km (0.12 R)
• M7: 7,845,960 km (0.028 R)
• M8: 8,803,535 km (0.061 R)
• M9: 9,310,672 km (0.111 R)
• M10: 9,659,535 km (0.099 R)
• M11: 12,246,830 km (0.097 R)
• M12: 16,182,450 km (0.054 R)
• M13: 19,300,220 km (0.092 R)
• M14: 20,301,329 km (0.083 R)
• M15: 21,111,700 km (0.119 R)
• M16: 21,411,794 km (0.049 R)
• M17: 22,640,291 km (0.114 R)
• M18: 24,241,437 km (0.095 R)
• M19: 27,757,137 km (0.065 R)
• M20: 29,683,060 km (0.093 R)
• M21: 31,306,197 km (0.076 R)
• M22: 32,189,123 km (0.107 R)

Planet 10 - Ice Giant

Semi-Major Axis: 16.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 630

Radius: 4.8

Gravity: 27.34 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 12.41 AU - 19.87 AU

Year: 24559 Days

Day: 17.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 107 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 84,850,191 km

• M1: 59,989 km (0.091 R)
• M2: 263,741 km (0.113 R)
• M3: 641,326 km (0.112 R)
• M4: 856,149 km (0.108 R)
• M5: 1,104,780 km (0.114 R)
• M6: 1,861,895 km (0.118 R)
• M7: 2,236,488 km (0.078 R)
• M8: 2,418,399 km (0.086 R)
• M9: 3,571,799 km (0.113 R)
• M10: 4,354,644 km (0.104 R)
• M11: 5,692,349 km (0.105 R)
• M12: 8,259,149 km (0.119 R)
• M13: 8,919,175 km (0.119 R)
• M14: 12,469,880 km (0.037 R)
• M15: 13,560,000 km (0.055 R)
• M16: 14,089,875 km (0.079 R)
• M17: 15,271,699 km (0.078 R)
• M18: 15,597,523 km (0.095 R)
• M19: 18,191,849 km (0.09 R)
• M20: 23,886,741 km (0.1 R)
• M21: 25,675,931 km (0.117 R)
• M22: 26,956,489 km (0.078 R)
• M23: 38,318,597 km (0.07 R)
• M24: 39,681,284 km (0.098 R)
• M25: 41,864,665 km (0.109 R)
• M26: 42,502,999 km (0.092 R)
• M27: 42,824,485 km (0.063 R)
• M28: 46,639,679 km (0.082 R)
• M29: 48,541,816 km (0.119 R)
• M30: 56,862,749 km (0.076 R)
• M31: 58,039,187 km (0.105 R)
• M32: 60,440,831 km (0.107 R)
• M33: 61,666,187 km (0.09 R)
• M34: 63,325,527 km (0.041 R)
• M35: 64,589,329 km (0.104 R)
• M36: 69,813,138 km (0.112 R)
• M37: 71,388,253 km (0.078 R)
• M38: 71,842,582 km (0.06 R)
• M39: 75,546,775 km (0.07 R)
• M40: 83,082,020 km (0.106 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 409 - 18,386 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit