🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.51

Radius: 1.45

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.79 AU - 0.81 AU

Year: 261 Days

Day: 19 Hours

Environment

Temp: 179 °C

Axial Tilt: 39.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 79,872,945 km

• M1: 422,165 km (0.066 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.59

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.63 AU - 1.03 AU

Year: 276 Days

Day: 41.2 Hours

Environment

Temp: 108 °C

Axial Tilt: 10.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.12

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 1.66 AU - 2.3 AU

Year: 1018 Days

Day: 44 Hours

Environment

Temp: -66 °C

Axial Tilt: 62 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.59

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 2.19 AU - 2.25 AU

Year: 1208 Days

Day: 23.3 Hours

Environment

Temp: -74 °C

Axial Tilt: 171.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.81 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 7.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 700.6

Radius: 11.6

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 7.11 AU - 7.67 AU

Year: 7338 Days

Day: 11.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 79,872,945 km

• M1: 146,008 km (0.044 R)
• M2: 1,180,178 km (0.117 R)
• M3: 1,822,551 km (0.026 R)
• M4: 2,649,528 km (0.098 R)
• M5: 3,149,185 km (0.115 R)
• M6: 4,554,956 km (0.072 R)
• M7: 4,920,723 km (0.074 R)
• M8: 5,680,082 km (0.116 R)
• M9: 6,239,877 km (0.058 R)
• M10: 7,279,582 km (0.11 R)
• M11: 8,183,602 km (0.073 R)
• M12: 10,357,708 km (0.097 R)
• M13: 13,570,771 km (0.082 R)
• M14: 17,600,339 km (0.114 R)
• M15: 23,929,975 km (0.069 R)
• M16: 26,457,730 km (0.105 R)
• M17: 26,911,011 km (0.051 R)
• M18: 35,980,681 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 11.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736.9

Radius: 11.9

Gravity: 5.2 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 9.2 AU - 14.58 AU

Year: 14975 Days

Day: 12.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 79,872,945 km

• M1: 147,952 km (0.071 R)
• M2: 560,693 km (0.1 R)
• M3: 1,079,648 km (0.1 R)
• M4: 2,874,373 km (0.074 R)
• M5: 3,639,716 km (0.042 R)
• M6: 4,070,857 km (0.083 R)
• M7: 4,666,107 km (0.103 R)
• M8: 5,992,592 km (0.06 R)
• M9: 7,108,891 km (0.091 R)
• M10: 7,601,666 km (0.103 R)
• M11: 9,482,111 km (0.08 R)
• M12: 13,253,623 km (0.095 R)
• M13: 13,932,648 km (0.092 R)
• M14: 15,656,764 km (0.097 R)
• M15: 18,924,579 km (0.103 R)
• M16: 21,586,374 km (0.109 R)
• M17: 22,526,597 km (0.077 R)
• M18: 23,888,386 km (0.088 R)
• M19: 28,302,870 km (0.11 R)
• M20: 31,890,676 km (0.114 R)
• M21: 38,983,111 km (0.1 R)
• M22: 41,228,425 km (0.106 R)
• M23: 43,262,807 km (0.114 R)
• M24: 45,975,465 km (0.073 R)
• M25: 48,162,436 km (0.106 R)
• M26: 48,639,803 km (0.11 R)
• M27: 53,419,754 km (0.102 R)
• M28: 59,594,705 km (0.12 R)
• M29: 60,884,239 km (0.113 R)
• M30: 61,816,832 km (0.037 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 539.6

Radius: 4.3

Gravity: 29.18 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 13.18 AU - 19.6 AU

Year: 24236 Days

Day: 17.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 79,872,945 km

• M1: 54,753 km (0.12 R)
• M2: 317,447 km (0.12 R)
• M3: 654,491 km (0.068 R)
• M4: 869,164 km (0.111 R)
• M5: 1,505,553 km (0.084 R)
• M6: 2,102,598 km (0.097 R)
• M7: 2,431,414 km (0.1 R)
• M8: 2,921,946 km (0.115 R)
• M9: 5,200,321 km (0.097 R)
• M10: 5,434,891 km (0.101 R)
• M11: 6,669,073 km (0.116 R)
• M12: 7,134,771 km (0.027 R)
• M13: 7,327,005 km (0.093 R)
• M14: 8,500,301 km (0.088 R)
• M15: 9,675,990 km (0.118 R)
• M16: 10,090,825 km (0.081 R)
• M17: 10,892,670 km (0.111 R)
• M18: 11,736,103 km (0.082 R)
• M19: 14,526,402 km (0.119 R)
• M20: 16,197,859 km (0.118 R)
• M21: 17,729,143 km (0.102 R)
• M22: 18,349,824 km (0.094 R)
• M23: 21,372,449 km (0.056 R)
• M24: 23,421,043 km (0.074 R)
• M25: 25,484,895 km (0.049 R)
• M26: 27,197,491 km (0.114 R)
• M27: 39,109,521 km (0.073 R)
• M28: 41,074,489 km (0.108 R)
• M29: 46,690,094 km (0.095 R)
• M30: 48,899,804 km (0.08 R)
• M31: 49,419,507 km (0.055 R)
• M32: 49,767,920 km (0.085 R)
• M33: 52,072,924 km (0.114 R)
• M34: 58,241,892 km (0.103 R)
• M35: 65,507,561 km (0.075 R)
• M36: 70,672,577 km (0.11 R)
• M37: 71,336,792 km (0.107 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: 298 - 17,328 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit