🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.78

Radius: 0.91

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.59 AU - 0.67 AU

Year: 179 Days

Day: 25.3 Hours

Environment

Temp: 169 °C

Axial Tilt: 18.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.48

Radius: 1.17

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.67 AU - 0.75 AU

Year: 214 Days

Day: 25.4 Hours

Environment

Temp: 172 °C

Axial Tilt: 19.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 54,630,814 km

• M1: 238,758 km (0.112 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.57 AU - 0.89 AU

Year: 223 Days

Day: 38 Hours

Environment

Temp: 170 °C

Axial Tilt: 34.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.81 AU - 1.07 AU

Year: 326 Days

Day: 37.5 Hours

Environment

Temp: 120 °C

Axial Tilt: 18 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 54,630,814 km

• M1: 147,354 km (0.037 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.75

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.17 AU - 1.69 AU

Year: 612 Days

Day: 17.5 Hours

Environment

Temp: -9 °C

Axial Tilt: 33.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 54,630,814 km

• M1: 514,766 km (0.111 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.34

Radius: 1.12

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1.47 AU - 2.09 AU

Year: 851 Days

Day: 45.4 Hours

Environment

Temp: -41 °C

Axial Tilt: 21.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.36 AU - 2.2 AU

Year: 851 Days

Day: 41.8 Hours

Environment

Temp: -54 °C

Axial Tilt: 4.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 54,630,814 km

• M1: 418,126 km (0.117 R)

Planet 8 - Terrestrial

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.45

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 2.54 AU - 3.52 AU

Year: 1889 Days

Day: 34.2 Hours

Environment

Temp: -95 °C

Axial Tilt: 25.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Gas Giant

Semi-Major Axis: 7.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 533.5

Radius: 12.4

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 7.85 AU - 8.05 AU

Year: 8028 Days

Day: 8.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 54,630,814 km

• M1: 157,078 km (0.113 R)
• M2: 592,108 km (0.111 R)
• M3: 1,251,985 km (0.115 R)
• M4: 1,671,906 km (0.113 R)
• M5: 2,219,733 km (0.113 R)
• M6: 2,693,360 km (0.112 R)
• M7: 3,408,288 km (0.078 R)
• M8: 5,366,824 km (0.082 R)
• M9: 5,964,018 km (0.033 R)
• M10: 6,640,350 km (0.095 R)
• M11: 7,106,796 km (0.066 R)
• M12: 9,551,076 km (0.045 R)
• M13: 10,382,391 km (0.114 R)
• M14: 15,219,040 km (0.098 R)
• M15: 17,610,661 km (0.097 R)
• M16: 19,434,409 km (0.037 R)
• M17: 19,872,581 km (0.042 R)
• M18: 21,535,960 km (0.063 R)
• M19: 22,722,121 km (0.118 R)
• M20: 23,619,260 km (0.025 R)
• M21: 24,624,707 km (0.086 R)
• M22: 25,224,295 km (0.112 R)
• M23: 25,746,093 km (0.032 R)
• M24: 31,868,535 km (0.12 R)
• M25: 35,645,283 km (0.032 R)

Planet 10 - Ice Giant

Semi-Major Axis: 14.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 242.4

Radius: 7.8

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 11.94 AU - 17.72 AU

Year: 20454 Days

Day: 16.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 54,630,814 km

• M1: 97,089 km (0.071 R)
• M2: 580,739 km (0.075 R)
• M3: 860,337 km (0.097 R)
• M4: 1,482,814 km (0.083 R)
• M5: 1,834,219 km (0.101 R)
• M6: 2,336,420 km (0.091 R)
• M7: 3,381,959 km (0.064 R)
• M8: 4,870,308 km (0.09 R)
• M9: 5,474,684 km (0.046 R)
• M10: 9,985,209 km (0.086 R)
• M11: 11,354,179 km (0.078 R)
• M12: 14,730,454 km (0.109 R)
• M13: 17,093,352 km (0.118 R)
• M14: 19,780,728 km (0.069 R)
• M15: 20,451,675 km (0.05 R)
• M16: 23,195,599 km (0.071 R)
• M17: 23,660,100 km (0.066 R)
• M18: 26,175,738 km (0.114 R)
• M19: 28,228,221 km (0.079 R)
• M20: 29,401,666 km (0.11 R)
• M21: 31,959,790 km (0.113 R)
• M22: 37,769,274 km (0.11 R)
• M23: 39,852,125 km (0.102 R)
• M24: 46,558,298 km (0.11 R)
• M25: 48,194,450 km (0.088 R)
• M26: 49,714,813 km (0.097 R)

Kuiper Belt

Range: 30.6 - 56.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 381 - 11,516 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit