🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.93

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.48 AU - 0.56 AU

Year: 135 Days

Day: 44.8 Hours

Environment

Temp: 233 °C

Axial Tilt: 22.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 56,344,895 km

• M1: 61,036 km (0.058 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.52

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.49 AU - 0.77 AU

Year: 180 Days

Day: 18.3 Hours

Environment

Temp: 232 °C

Axial Tilt: 31.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.85

Radius: 0.94

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.76 AU - 0.76 AU

Year: 238 Days

Day: 30 Hours

Environment

Temp: 142 °C

Axial Tilt: 6.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.41

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.84 AU - 1.08 AU

Year: 339 Days

Day: 23.1 Hours

Environment

Temp: 80 °C

Axial Tilt: 22.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 5 - Terrestrial

Semi-Major Axis: 1.41 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.8

Radius: 0.91

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.18 AU - 1.64 AU

Year: 603 Days

Day: 13.8 Hours

Environment

Temp: 7 °C

Axial Tilt: 77.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 56,344,895 km

• M1: 21,243 km (0.119 R)
• M2: 254,316 km (0.088 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.47

Radius: 1.44

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.79 AU - 1.91 AU

Year: 906 Days

Day: 12.7 Hours

Environment

Temp: -63 °C

Axial Tilt: 41.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.57

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.81 AU - 2.11 AU

Year: 988 Days

Day: 37.1 Hours

Environment

Temp: -54 °C

Axial Tilt: 112.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.14

Radius: 1.05

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.94 AU - 3.23 AU

Year: 1491 Days

Day: 22.7 Hours

Environment

Temp: -93 °C

Axial Tilt: 25.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,344,895 km

• M1: 93,050 km (0.119 R)

Planet 9 - Gas Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 627

Radius: 13

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 7.46 AU - 8.04 AU

Year: 7765 Days

Day: 10.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 56,344,895 km

• M1: 161,715 km (0.119 R)
• M2: 682,914 km (0.061 R)
• M3: 1,240,166 km (0.077 R)
• M4: 2,019,122 km (0.116 R)
• M5: 2,502,174 km (0.112 R)
• M6: 3,210,071 km (0.109 R)
• M7: 3,849,901 km (0.075 R)
• M8: 4,628,558 km (0.104 R)
• M9: 5,294,717 km (0.11 R)
• M10: 6,395,907 km (0.109 R)
• M11: 9,269,383 km (0.076 R)
• M12: 10,282,161 km (0.048 R)
• M13: 11,521,130 km (0.114 R)
• M14: 11,938,060 km (0.12 R)
• M15: 13,305,983 km (0.103 R)
• M16: 14,594,170 km (0.09 R)
• M17: 16,614,190 km (0.07 R)
• M18: 21,357,938 km (0.054 R)
• M19: 32,786,917 km (0.082 R)
• M20: 34,695,187 km (0.101 R)

Planet 10 - Gas Giant

Semi-Major Axis: 10.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 774.8

Radius: 11.3

Gravity: 6.07 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 8.58 AU - 12.12 AU

Year: 11983 Days

Day: 11.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 130.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 56,344,895 km

• M1: 140,472 km (0.087 R)
• M2: 502,200 km (0.117 R)
• M3: 1,151,305 km (0.041 R)
• M4: 1,688,661 km (0.073 R)
• M5: 2,234,693 km (0.118 R)
• M6: 2,697,848 km (0.093 R)
• M7: 4,640,376 km (0.042 R)
• M8: 5,228,146 km (0.088 R)
• M9: 5,611,267 km (0.061 R)
• M10: 6,712,456 km (0.08 R)
• M11: 7,124,000 km (0.062 R)
• M12: 8,460,807 km (0.109 R)
• M13: 10,549,193 km (0.102 R)
• M14: 11,050,047 km (0.112 R)
• M15: 19,171,865 km (0.056 R)
• M16: 20,171,777 km (0.115 R)
• M17: 21,558,848 km (0.026 R)
• M18: 23,851,735 km (0.096 R)
• M19: 25,204,548 km (0.11 R)
• M20: 27,224,868 km (0.1 R)
• M21: 28,380,960 km (0.034 R)
• M22: 30,231,635 km (0.099 R)
• M23: 31,129,821 km (0.113 R)
• M24: 34,172,043 km (0.065 R)
• M25: 36,643,101 km (0.075 R)
• M26: 37,664,106 km (0.109 R)
• M27: 39,496,381 km (0.104 R)
• M28: 49,866,505 km (0.03 R)

Kuiper Belt

Range: 30.5 - 49.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 225 - 17,378 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit