🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.48 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.95 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.25

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.83 AU - 1.07 AU

Year: 335 Days

Day: 16.8 Hours

Environment

Temp: 97 °C

Axial Tilt: 31.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.23

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.94 AU - 1.16 AU

Year: 389 Days

Day: 42.2 Hours

Environment

Temp: 27 °C

Axial Tilt: 9.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 49,048,416 km

• M1: 44,431 km (0.085 R)
• M2: 74,649 km (0.078 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.33 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.72

Radius: 1.24

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.19 AU - 1.47 AU

Year: 555 Days

Day: 30.8 Hours

Environment

Temp: -9 °C

Axial Tilt: 36.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.03

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.29 AU - 1.65 AU

Year: 645 Days

Day: 18.5 Hours

Environment

Temp: -31 °C

Axial Tilt: 35.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.21

Radius: 1.08

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 1.14 AU - 1.9 AU

Year: 678 Days

Day: 30.9 Hours

Environment

Temp: -26 °C

Axial Tilt: 39.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.66

Radius: 1.22

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 3.31 AU - 4.63 AU

Year: 2861 Days

Day: 25.1 Hours

Environment

Temp: -131 °C

Axial Tilt: 31.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 4.04 AU - 5 AU

Year: 3475 Days

Day: 42.4 Hours

Environment

Temp: -131 °C

Axial Tilt: 39.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 5.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.8

Radius: 12.6

Gravity: 5.49 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 4.53 AU - 5.67 AU

Year: 4165 Days

Day: 12.5 Hours

Environment

Temp: -131 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 49,048,416 km

• M1: 156,779 km (0.115 R)
• M2: 595,998 km (0.059 R)
• M3: 1,040,004 km (0.096 R)
• M4: 2,245,314 km (0.111 R)
• M5: 2,816,629 km (0.08 R)
• M6: 3,362,063 km (0.119 R)
• M7: 4,068,164 km (0.063 R)
• M8: 4,617,039 km (0.1 R)
• M9: 6,224,019 km (0.114 R)
• M10: 6,726,818 km (0.101 R)
• M11: 7,324,761 km (0.09 R)
• M12: 9,173,641 km (0.087 R)
• M13: 9,743,010 km (0.069 R)
• M14: 11,408,034 km (0.118 R)
• M15: 11,971,270 km (0.115 R)
• M16: 12,454,771 km (0.072 R)
• M17: 15,577,925 km (0.044 R)
• M18: 21,015,060 km (0.063 R)
• M19: 22,077,803 km (0.111 R)
• M20: 24,619,172 km (0.089 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723

Radius: 11.1

Gravity: 5.87 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 8.59 AU - 9.79 AU

Year: 10075 Days

Day: 8.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 49,048,416 km

• M1: 138,079 km (0.119 R)
• M2: 535,261 km (0.115 R)
• M3: 1,037,910 km (0.101 R)
• M4: 1,832,574 km (0.093 R)
• M5: 2,779,678 km (0.082 R)
• M6: 3,387,195 km (0.101 R)
• M7: 3,761,788 km (0.048 R)
• M8: 4,361,526 km (0.045 R)
• M9: 4,898,732 km (0.105 R)
• M10: 5,927,666 km (0.088 R)
• M11: 7,754,406 km (0.059 R)
• M12: 8,681,613 km (0.083 R)
• M13: 9,829,926 km (0.11 R)
• M14: 10,915,409 km (0.104 R)
• M15: 13,446,455 km (0.108 R)
• M16: 15,247,165 km (0.054 R)
• M17: 16,135,776 km (0.119 R)
• M18: 16,486,583 km (0.079 R)
• M19: 16,986,240 km (0.113 R)
• M20: 17,496,069 km (0.111 R)
• M21: 19,638,012 km (0.066 R)
• M22: 21,187,546 km (0.106 R)
• M23: 26,810,781 km (0.09 R)
• M24: 29,439,066 km (0.079 R)
• M25: 29,963,556 km (0.053 R)
• M26: 31,683,931 km (0.082 R)
• M27: 33,469,083 km (0.072 R)
• M28: 34,040,397 km (0.091 R)
• M29: 48,028,396 km (0.042 R)

Kuiper Belt

Range: 30.3 - 45.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 520 - 16,917 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit