🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.87

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.6 AU - 0.7 AU

Year: 198 Days

Day: 39.6 Hours

Environment

Temp: 143 °C

Axial Tilt: 2.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 94,384,545 km

• M1: 174,431 km (0.115 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.61

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.66 AU - 0.84 AU

Year: 246 Days

Day: 37.4 Hours

Environment

Temp: 101 °C

Axial Tilt: 16.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.79

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.76 AU - 1.18 AU

Year: 362 Days

Day: 13.2 Hours

Environment

Temp: 28 °C

Axial Tilt: 36.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 94,384,545 km

• M1: 105,466 km (0.091 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.92

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.44 AU - 1.62 AU

Year: 717 Days

Day: 42.6 Hours

Environment

Temp: -45 °C

Axial Tilt: 16.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.29

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.58 AU - 1.66 AU

Year: 781 Days

Day: 20 Hours

Environment

Temp: -55 °C

Axial Tilt: 36.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 94,384,545 km

• M1: 245,939 km (0.085 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.09

Radius: 1.04

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 2.8 AU - 3.28 AU

Year: 2008 Days

Day: 22.4 Hours

Environment

Temp: -121 °C

Axial Tilt: 6.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.76

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 3.27 AU - 4.17 AU

Year: 2717 Days

Day: 14 Hours

Environment

Temp: -134 °C

Axial Tilt: 36 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 4.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 15.2

Radius: 13.2

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 4.3 AU - 4.34 AU

Year: 3401 Days

Day: 9.8 Hours

Environment

Temp: -128 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 94,384,545 km

• M1: 165,754 km (0.08 R)
• M2: 916,885 km (0.117 R)
• M3: 1,471,594 km (0.113 R)
• M4: 2,012,091 km (0.105 R)
• M5: 4,305,277 km (0.111 R)
• M6: 5,444,615 km (0.06 R)

Planet 9 - Gas Giant

Semi-Major Axis: 10 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 186.4

Radius: 11.3

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 9.64 AU - 10.36 AU

Year: 11977 Days

Day: 6.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 94,384,545 km

• M1: 140,921 km (0.102 R)
• M2: 725,849 km (0.098 R)
• M3: 1,150,108 km (0.081 R)
• M4: 1,795,623 km (0.073 R)
• M5: 2,953,511 km (0.103 R)
• M6: 3,856,184 km (0.083 R)
• M7: 5,604,086 km (0.042 R)
• M8: 8,577,194 km (0.105 R)
• M9: 9,243,952 km (0.103 R)
• M10: 11,305,859 km (0.109 R)
• M11: 13,109,112 km (0.108 R)
• M12: 15,096,669 km (0.101 R)
• M13: 16,007,122 km (0.104 R)
• M14: 17,018,254 km (0.12 R)
• M15: 17,737,820 km (0.075 R)
• M16: 27,665,134 km (0.111 R)
• M17: 28,659,960 km (0.094 R)
• M18: 34,406,613 km (0.091 R)

Planet 10 - Ice Giant

Semi-Major Axis: 18.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 624.1

Radius: 3.3

Gravity: 57.31 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 14.77 AU - 21.25 AU

Year: 28948 Days

Day: 23.9 Hours

Environment

Temp: -202 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 94,384,545 km

• M1: 50,863 km (0.071 R)
• M2: 253,120 km (0.117 R)
• M3: 449,691 km (0.092 R)
• M4: 719,267 km (0.071 R)
• M5: 927,357 km (0.096 R)
• M6: 1,188,854 km (0.101 R)
• M7: 1,737,729 km (0.085 R)
• M8: 2,090,032 km (0.052 R)
• M9: 6,931,318 km (0.102 R)
• M10: 7,806,765 km (0.11 R)
• M11: 9,104,826 km (0.118 R)
• M12: 9,224,055 km (0.071 R)
• M13: 9,649,661 km (0.067 R)
• M14: 11,005,167 km (0.084 R)
• M15: 16,698,114 km (0.062 R)
• M16: 18,164,473 km (0.078 R)
• M17: 18,928,768 km (0.118 R)
• M18: 19,813,939 km (0.09 R)
• M19: 23,743,875 km (0.114 R)
• M20: 25,474,722 km (0.048 R)
• M21: 26,674,198 km (0.074 R)
• M22: 27,041,311 km (0.114 R)
• M23: 28,543,274 km (0.106 R)
• M24: 31,303,953 km (0.048 R)
• M25: 34,670,952 km (0.11 R)
• M26: 43,112,012 km (0.081 R)
• M27: 47,088,024 km (0.08 R)
• M28: 47,803,551 km (0.075 R)
• M29: 52,249,600 km (0.1 R)
• M30: 55,163,766 km (0.072 R)
• M31: 63,027,378 km (0.092 R)
• M32: 69,970,066 km (0.092 R)
• M33: 78,651,529 km (0.034 R)
• M34: 87,484,236 km (0.079 R)
• M35: 88,564,782 km (0.112 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 497 - 13,282 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit