🌌 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: 4.32

Radius: 1.8

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.49 AU - 0.77 AU

Year: 176 Days

Day: 43.5 Hours

Environment

Temp: 202 °C

Axial Tilt: 35.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.34

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.78 AU - 1.16 AU

Year: 336 Days

Day: 21.6 Hours

Environment

Temp: 99 °C

Axial Tilt: 16.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 100,596,360 km

• M1: 535,860 km (0.065 R)
• M2: 595,998 km (0.11 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.5 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 1.16 AU - 1.84 AU

Year: 646 Days

Day: 42.4 Hours

Environment

Temp: -17 °C

Axial Tilt: 7.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.22

Radius: 1.08

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.53 AU - 1.89 AU

Year: 786 Days

Day: 42.8 Hours

Environment

Temp: -37 °C

Axial Tilt: 18.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.56

Radius: 1.19

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 2.77 AU - 3.57 AU

Year: 1984 Days

Day: 23.8 Hours

Environment

Temp: -97 °C

Axial Tilt: 48 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.66 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.8

Radius: 13

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 5.63 AU - 6.67 AU

Year: 5360 Days

Day: 7.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 100,596,360 km

• M1: 161,715 km (0.097 R)
• M2: 624,870 km (0.113 R)
• M3: 1,072,467 km (0.093 R)
• M4: 2,728,366 km (0.115 R)
• M5: 3,469,623 km (0.066 R)
• M6: 3,888,497 km (0.104 R)
• M7: 4,805,233 km (0.062 R)
• M8: 5,944,271 km (0.063 R)
• M9: 6,371,373 km (0.086 R)
• M10: 8,715,722 km (0.074 R)
• M11: 10,121,942 km (0.071 R)
• M12: 11,940,304 km (0.098 R)
• M13: 15,089,189 km (0.06 R)
• M14: 15,725,728 km (0.115 R)
• M15: 17,052,811 km (0.095 R)
• M16: 17,569,372 km (0.086 R)
• M17: 18,393,357 km (0.051 R)
• M18: 20,182,398 km (0.066 R)
• M19: 21,882,728 km (0.049 R)
• M20: 23,324,253 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 861.6

Radius: 3.9

Gravity: 56.65 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 16.74 AU - 19.5 AU

Year: 27109 Days

Day: 24.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 100,596,360 km

• M1: 48,470 km (0.087 R)
• M2: 201,359 km (0.107 R)
• M3: 394,639 km (0.078 R)
• M4: 516,861 km (0.087 R)
• M5: 664,663 km (0.094 R)
• M6: 2,094,221 km (0.117 R)
• M7: 2,957,849 km (0.092 R)
• M8: 4,509,029 km (0.086 R)
• M9: 7,339,421 km (0.05 R)
• M10: 8,672,039 km (0.096 R)
• M11: 9,089,267 km (0.047 R)
• M12: 10,028,144 km (0.096 R)
• M13: 10,157,995 km (0.115 R)
• M14: 10,892,670 km (0.104 R)
• M15: 11,733,559 km (0.086 R)
• M16: 12,243,688 km (0.077 R)
• M17: 16,777,102 km (0.094 R)
• M18: 21,658,481 km (0.078 R)
• M19: 23,896,165 km (0.096 R)
• M20: 25,915,438 km (0.032 R)
• M21: 26,037,659 km (0.106 R)
• M22: 26,530,285 km (0.088 R)
• M23: 26,778,916 km (0.119 R)
• M24: 38,683,017 km (0.072 R)
• M25: 39,163,376 km (0.056 R)
• M26: 50,569,765 km (0.073 R)
• M27: 56,507,753 km (0.052 R)
• M28: 56,919,297 km (0.11 R)
• M29: 62,453,521 km (0.09 R)
• M30: 71,410,544 km (0.12 R)
• M31: 74,576,334 km (0.048 R)
• M32: 75,818,445 km (0.104 R)
• M33: 80,924,819 km (0.09 R)
• M34: 82,236,343 km (0.119 R)
• M35: 86,801,322 km (0.109 R)
• M36: 92,669,897 km (0.084 R)
• M37: 93,242,258 km (0.098 R)

Kuiper Belt

Range: 31.2 - 59.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 493 - 13,625 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit