🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.95

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.46 AU - 0.64 AU

Year: 149 Days

Day: 41.8 Hours

Environment

Temp: 217 °C

Axial Tilt: 140.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.89

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.02 AU - 1.46 AU

Year: 504 Days

Day: 25.1 Hours

Environment

Temp: 16 °C

Axial Tilt: 14.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.25

Radius: 0.57

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 1.34 AU - 1.84 AU

Year: 732 Days

Day: 24 Hours

Environment

Temp: -35 °C

Axial Tilt: 1.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.8

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.48 AU - 1.82 AU

Year: 774 Days

Day: 40.2 Hours

Environment

Temp: -40 °C

Axial Tilt: 42.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.23

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.88 AU - 1.94 AU

Year: 964 Days

Day: 17 Hours

Environment

Temp: -62 °C

Axial Tilt: 36.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 77,534,988 km

• M1: 754,272 km (0.101 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.27

Radius: 1.61

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 2.18 AU - 3.12 AU

Year: 1576 Days

Day: 33.1 Hours

Environment

Temp: -100 °C

Axial Tilt: 7.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.54 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 6.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 59.4

Radius: 14.3

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 4.83 AU - 8.01 AU

Year: 5941 Days

Day: 13.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 167.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 77,534,988 km

• M1: 178,171 km (0.092 R)
• M2: 978,071 km (0.115 R)
• M3: 1,910,365 km (0.084 R)
• M4: 2,408,675 km (0.056 R)
• M5: 5,024,095 km (0.089 R)
• M6: 7,538,536 km (0.12 R)
• M7: 9,503,654 km (0.112 R)
• M8: 11,196,503 km (0.105 R)
• M9: 12,095,586 km (0.059 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 123.1

Radius: 12.2

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 6.71 AU - 9.73 AU

Year: 8608 Days

Day: 12 Hours

Environment

Temp: -162 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 77,534,988 km

• M1: 151,692 km (0.08 R)
• M2: 680,072 km (0.115 R)
• M3: 1,116,299 km (0.085 R)
• M4: 1,561,652 km (0.108 R)
• M5: 2,368,284 km (0.109 R)
• M6: 2,858,666 km (0.108 R)
• M7: 3,397,517 km (0.053 R)
• M8: 3,876,679 km (0.073 R)
• M9: 5,275,719 km (0.079 R)
• M10: 7,467,776 km (0.088 R)
• M11: 7,970,275 km (0.106 R)
• M12: 9,968,903 km (0.081 R)
• M13: 10,872,025 km (0.107 R)
• M14: 11,562,569 km (0.039 R)
• M15: 16,169,884 km (0.092 R)
• M16: 17,242,351 km (0.089 R)
• M17: 24,113,681 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 188.8

Radius: 4.3

Gravity: 10.21 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 11.68 AU - 14.68 AU

Year: 17477 Days

Day: 23.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 77,534,988 km

• M1: 82,279 km (0.084 R)
• M2: 221,854 km (0.048 R)
• M3: 953,238 km (0.108 R)
• M4: 1,861,746 km (0.091 R)
• M5: 2,903,545 km (0.118 R)
• M6: 3,983,642 km (0.071 R)
• M7: 7,492,909 km (0.108 R)
• M8: 7,781,632 km (0.065 R)
• M9: 7,992,416 km (0.085 R)
• M10: 8,425,352 km (0.118 R)
• M11: 9,672,250 km (0.117 R)
• M12: 12,297,095 km (0.102 R)
• M13: 18,595,913 km (0.103 R)
• M14: 19,277,930 km (0.102 R)
• M15: 19,741,683 km (0.063 R)
• M16: 23,812,091 km (0.081 R)
• M17: 26,656,545 km (0.108 R)
• M18: 28,407,888 km (0.114 R)
• M19: 31,070,879 km (0.079 R)
• M20: 42,601,285 km (0.117 R)

Planet 10 - Ice Giant

Semi-Major Axis: 14.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 673.1

Radius: 5.7

Gravity: 20.72 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 11.51 AU - 18.05 AU

Year: 20754 Days

Day: 23.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 77,534,988 km

• M1: 72,705 km (0.118 R)
• M2: 359,334 km (0.096 R)
• M3: 663,167 km (0.092 R)
• M4: 895,792 km (0.1 R)
• M5: 1,340,247 km (0.113 R)
• M6: 1,921,285 km (0.094 R)
• M7: 2,225,867 km (0.098 R)
• M8: 3,449,428 km (0.074 R)
• M9: 3,776,149 km (0.054 R)
• M10: 4,491,526 km (0.108 R)
• M11: 5,140,931 km (0.108 R)
• M12: 5,647,619 km (0.107 R)
• M13: 6,017,425 km (0.032 R)
• M14: 6,580,062 km (0.072 R)
• M15: 7,759,492 km (0.073 R)
• M16: 8,372,843 km (0.106 R)
• M17: 9,580,696 km (0.051 R)
• M18: 10,528,997 km (0.104 R)
• M19: 11,734,607 km (0.077 R)
• M20: 12,066,564 km (0.064 R)
• M21: 14,116,803 km (0.118 R)
• M22: 22,341,544 km (0.108 R)
• M23: 23,683,587 km (0.059 R)
• M24: 28,743,884 km (0.058 R)
• M25: 31,207,313 km (0.059 R)
• M26: 36,268,957 km (0.091 R)
• M27: 41,697,564 km (0.105 R)
• M28: 47,141,580 km (0.1 R)
• M29: 50,555,404 km (0.068 R)
• M30: 59,218,766 km (0.041 R)
• M31: 60,785,504 km (0.081 R)
• M32: 61,380,156 km (0.102 R)
• M33: 65,859,415 km (0.067 R)
• M34: 68,606,182 km (0.108 R)
• M35: 74,326,804 km (0.067 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 264 - 19,953 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit