🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.92

Radius: 0.97

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.67 AU - 0.71 AU

Year: 207 Days

Day: 21.4 Hours

Environment

Temp: 135 °C

Axial Tilt: 31.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.32

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.87 AU - 1.21 AU

Year: 384 Days

Day: 45.3 Hours

Environment

Temp: 31 °C

Axial Tilt: 41 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 26,788,299 km

• M1: 48,919 km (0.07 R)
• M2: 284,236 km (0.08 R)

Asteroid Belt

Center: 4.07 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 7.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70.1

Radius: 11.4

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 5.62 AU - 8.56 AU

Year: 6827 Days

Day: 14.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 26,788,299 km

• M1: 141,819 km (0.027 R)
• M2: 913,145 km (0.1 R)
• M3: 1,330,075 km (0.059 R)
• M4: 4,310,962 km (0.105 R)
• M5: 7,044,115 km (0.041 R)
• M6: 10,000,618 km (0.09 R)
• M7: 13,220,861 km (0.061 R)

Planet 4 - Gas Giant

Semi-Major Axis: 7.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 402.5

Radius: 12.1

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 6.44 AU - 9.34 AU

Year: 8015 Days

Day: 5.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 26,788,299 km

• M1: 150,495 km (0.105 R)
• M2: 564,732 km (0.101 R)
• M3: 965,804 km (0.084 R)
• M4: 1,800,261 km (0.12 R)
• M5: 2,669,574 km (0.074 R)
• M6: 3,708,681 km (0.113 R)
• M7: 8,017,847 km (0.118 R)
• M8: 9,065,481 km (0.106 R)
• M9: 9,754,380 km (0.106 R)
• M10: 10,477,685 km (0.106 R)
• M11: 11,729,221 km (0.056 R)
• M12: 12,339,281 km (0.086 R)
• M13: 13,239,860 km (0.113 R)
• M14: 13,623,280 km (0.078 R)
• M15: 19,237,389 km (0.108 R)
• M16: 20,302,675 km (0.079 R)
• M17: 23,415,508 km (0.097 R)
• M18: 24,220,494 km (0.053 R)
• M19: 25,294,307 km (0.104 R)
• M20: 25,885,668 km (0.078 R)
• M21: 29,909,252 km (0.106 R)
• M22: 31,241,571 km (0.112 R)
• M23: 33,012,211 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 164.6

Radius: 13

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 6.43 AU - 10.01 AU

Year: 8523 Days

Day: 6.4 Hours

Environment

Temp: -169 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 26,788,299 km

• M1: 161,865 km (0.078 R)
• M2: 657,183 km (0.045 R)
• M3: 1,075,758 km (0.054 R)
• M4: 1,499,419 km (0.075 R)
• M5: 2,323,255 km (0.099 R)
• M6: 3,015,295 km (0.095 R)
• M7: 6,915,162 km (0.073 R)
• M8: 8,350,553 km (0.1 R)
• M9: 8,757,459 km (0.115 R)
• M10: 11,896,322 km (0.11 R)
• M11: 13,845,732 km (0.031 R)
• M12: 15,112,975 km (0.081 R)
• M13: 16,113,037 km (0.056 R)
• M14: 16,629,449 km (0.095 R)
• M15: 18,493,139 km (0.077 R)
• M16: 19,767,264 km (0.057 R)
• M17: 20,492,515 km (0.062 R)
• M18: 21,167,052 km (0.113 R)
• M19: 22,560,855 km (0.095 R)
• M20: 26,708,456 km (0.101 R)

Kuiper Belt

Range: 30.3 - 58.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 482 - 18,233 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit