🌌 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: 4.02

Radius: 1.74

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.53 AU - 0.53 AU

Year: 141 Days

Day: 46.8 Hours

Environment

Temp: 216 °C

Axial Tilt: 90.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.66

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.54 AU - 0.54 AU

Year: 145 Days

Day: 26.6 Hours

Environment

Temp: 234 °C

Axial Tilt: 23.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 69,131,730 km

• M1: 43,383 km (0.05 R)
• M2: 263,741 km (0.113 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.34

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.59 AU - 0.71 AU

Year: 191 Days

Day: 18.5 Hours

Environment

Temp: 217 °C

Axial Tilt: 23 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.71

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.11 AU - 1.17 AU

Year: 445 Days

Day: 16 Hours

Environment

Temp: 10 °C

Axial Tilt: 41.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.57

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.19 AU - 1.27 AU

Year: 498 Days

Day: 30.8 Hours

Environment

Temp: -1 °C

Axial Tilt: 3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 69,131,730 km

• M1: 1,102,387 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.3

Radius: 14.2

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 5.35 AU - 5.77 AU

Year: 4789 Days

Day: 7 Hours

Environment

Temp: -149 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 69,131,730 km

• M1: 179,368 km (0.072 R)
• M2: 659,278 km (0.097 R)
• M3: 1,495,231 km (0.113 R)
• M4: 2,364,544 km (0.117 R)
• M5: 3,071,843 km (0.117 R)
• M6: 4,058,740 km (0.095 R)
• M7: 5,126,420 km (0.064 R)
• M8: 6,458,140 km (0.06 R)
• M9: 8,510,024 km (0.115 R)
• M10: 9,209,993 km (0.117 R)
• M11: 11,668,784 km (0.085 R)
• M12: 12,269,868 km (0.081 R)
• M13: 12,891,447 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.6

Radius: 12.5

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 9.11 AU - 11.55 AU

Year: 12127 Days

Day: 11.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 69,131,730 km

• M1: 155,432 km (0.118 R)
• M2: 689,347 km (0.065 R)
• M3: 1,652,458 km (0.11 R)
• M4: 2,357,363 km (0.101 R)
• M5: 2,954,857 km (0.117 R)
• M6: 3,600,522 km (0.074 R)
• M7: 4,081,778 km (0.08 R)
• M8: 7,045,162 km (0.05 R)
• M9: 8,382,268 km (0.1 R)
• M10: 9,830,974 km (0.114 R)
• M11: 10,244,163 km (0.116 R)
• M12: 13,219,365 km (0.097 R)
• M13: 13,723,361 km (0.114 R)
• M14: 14,371,419 km (0.117 R)
• M15: 20,479,948 km (0.052 R)
• M16: 22,108,621 km (0.105 R)
• M17: 23,637,511 km (0.065 R)
• M18: 27,106,386 km (0.048 R)
• M19: 29,385,659 km (0.108 R)
• M20: 31,343,447 km (0.082 R)
• M21: 34,204,805 km (0.12 R)
• M22: 35,517,227 km (0.067 R)
• M23: 37,862,922 km (0.114 R)
• M24: 43,135,798 km (0.095 R)
• M25: 45,803,726 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 382.5

Radius: 3.6

Gravity: 29.51 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 12.44 AU - 19.38 AU

Year: 23179 Days

Day: 16.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 69,131,730 km

• M1: 49,218 km (0.085 R)
• M2: 182,958 km (0.113 R)
• M3: 378,183 km (0.059 R)
• M4: 1,124,228 km (0.072 R)
• M5: 1,644,081 km (0.07 R)
• M6: 2,438,296 km (0.111 R)
• M7: 2,808,401 km (0.08 R)
• M8: 4,433,183 km (0.099 R)
• M9: 5,385,823 km (0.093 R)
• M10: 5,731,543 km (0.039 R)
• M11: 6,298,370 km (0.117 R)
• M12: 6,509,751 km (0.057 R)
• M13: 7,036,037 km (0.041 R)
• M14: 7,495,751 km (0.069 R)
• M15: 8,424,155 km (0.104 R)
• M16: 9,209,245 km (0.056 R)
• M17: 9,815,116 km (0.076 R)
• M18: 10,099,053 km (0.12 R)
• M19: 10,984,074 km (0.111 R)
• M20: 11,983,537 km (0.074 R)
• M21: 12,177,566 km (0.068 R)
• M22: 13,454,832 km (0.088 R)
• M23: 14,744,815 km (0.071 R)
• M24: 15,042,365 km (0.114 R)
• M25: 36,760,386 km (0.104 R)
• M26: 38,416,584 km (0.056 R)
• M27: 42,025,183 km (0.039 R)
• M28: 43,074,612 km (0.08 R)
• M29: 52,969,614 km (0.071 R)
• M30: 61,743,380 km (0.072 R)
• M31: 64,078,602 km (0.084 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 378 - 13,121 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit