🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.97

Radius: 0.99

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.52 AU - 0.54 AU

Year: 142 Days

Day: 27.5 Hours

Environment

Temp: 191 °C

Axial Tilt: 37.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 16,672,747 km

• M1: 274,213 km (0.118 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.73

Radius: 0.88

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.45 AU - 0.65 AU

Year: 150 Days

Day: 16.9 Hours

Environment

Temp: 227 °C

Axial Tilt: 32.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.65

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.56 AU - 0.92 AU

Year: 235 Days

Day: 17.1 Hours

Environment

Temp: 180 °C

Axial Tilt: 37.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 16,672,747 km

• M1: 327,919 km (0.085 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.18 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.67

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.05 AU - 1.31 AU

Year: 473 Days

Day: 42.5 Hours

Environment

Temp: 10 °C

Axial Tilt: 178.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.98

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.71 AU - 1.79 AU

Year: 854 Days

Day: 31.3 Hours

Environment

Temp: -50 °C

Axial Tilt: 35.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.75

Radius: 1.25

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 2.81 AU - 2.95 AU

Year: 1803 Days

Day: 18.5 Hours

Environment

Temp: -105 °C

Axial Tilt: 26.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.17

Radius: 1.59

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 3.4 AU - 4.6 AU

Year: 2952 Days

Day: 20 Hours

Environment

Temp: -130 °C

Axial Tilt: 33.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.39

Radius: 1.14

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 3.42 AU - 5.64 AU

Year: 3557 Days

Day: 47.6 Hours

Environment

Temp: -131 °C

Axial Tilt: 36.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 16,672,747 km

• M1: 270,772 km (0.097 R)

Asteroid Belt

Center: 7.3 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 10.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 20.8

Radius: 8.6

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 8.22 AU - 11.9 AU

Year: 11773 Days

Day: 7.3 Hours

Environment

Temp: -177 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (48)

Outer Limit: 16,672,747 km

• M1: 108,458 km (0.108 R)
• M2: 919,578 km (0.111 R)
• M3: 1,177,186 km (0.111 R)
• M4: 1,758,373 km (0.114 R)
• M5: 2,535,086 km (0.056 R)
• M6: 2,707,422 km (0.09 R)
• M7: 2,774,741 km (0.095 R)
• M8: 2,829,045 km (0.061 R)
• M9: 2,883,649 km (0.043 R)
• M10: 3,655,424 km (0.069 R)
• M11: 4,266,382 km (0.095 R)
• M12: 4,567,821 km (0.041 R)
• M13: 4,648,305 km (0.097 R)
• M14: 4,974,877 km (0.11 R)
• M15: 5,141,080 km (0.095 R)
• M16: 5,359,793 km (0.073 R)
• M17: 5,495,927 km (0.072 R)
• M18: 5,754,282 km (0.102 R)
• M19: 5,981,372 km (0.117 R)
• M20: 6,480,729 km (0.053 R)
• M21: 6,607,588 km (0.104 R)
• M22: 6,808,797 km (0.066 R)
• M23: 7,086,302 km (0.104 R)
• M24: 7,329,847 km (0.114 R)
• M25: 7,405,394 km (0.063 R)
• M26: 7,519,088 km (0.048 R)
• M27: 7,633,531 km (0.069 R)
• M28: 7,729,124 km (0.106 R)
• M29: 7,863,911 km (0.115 R)
• M30: 8,390,645 km (0.054 R)
• M31: 8,908,703 km (0.078 R)
• M32: 8,969,140 km (0.063 R)
• M33: 9,049,923 km (0.109 R)
• M34: 10,059,410 km (0.057 R)
• M35: 10,502,967 km (0.098 R)
• M36: 10,780,771 km (0.079 R)
• M37: 10,931,416 km (0.112 R)
• M38: 11,982,640 km (0.092 R)
• M39: 12,205,840 km (0.041 R)
• M40: 12,860,480 km (0.105 R)
• M41: 13,020,251 km (0.093 R)
• M42: 13,805,490 km (0.058 R)
• M43: 14,487,507 km (0.036 R)
• M44: 14,844,447 km (0.089 R)
• M45: 15,036,082 km (0.105 R)
• M46: 15,300,870 km (0.109 R)
• M47: 15,737,546 km (0.083 R)
• M48: 15,957,455 km (0.107 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 460 - 13,137 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit