🌌 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: 1.22

Radius: 1.08

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.47 AU - 0.63 AU

Year: 147 Days

Day: 17 Hours

Environment

Temp: 227 °C

Axial Tilt: 23.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 44,332,769 km

• M1: 42,486 km (0.063 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.14

Radius: 0.46

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.8 AU - 0.8 AU

Year: 258 Days

Day: 44.3 Hours

Environment

Temp: 149 °C

Axial Tilt: 28 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 44,332,769 km

• M1: 130,449 km (0.047 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.26

Radius: 0.58

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.68 AU - 0.94 AU

Year: 262 Days

Day: 14.7 Hours

Environment

Temp: 156 °C

Axial Tilt: 8.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.5

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.33 AU - 1.69 AU

Year: 668 Days

Day: 18.6 Hours

Environment

Temp: -34 °C

Axial Tilt: 46.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 44,332,769 km

• M1: 43,982 km (0.084 R)
• M2: 672,742 km (0.04 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.1

Radius: 1.04

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.56 AU - 2.22 AU

Year: 935 Days

Day: 39.1 Hours

Environment

Temp: -54 °C

Axial Tilt: 35.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 44,332,769 km

• M1: 1,109,567 km (0.093 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.17

Radius: 0.49

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 3.13 AU - 4.29 AU

Year: 2572 Days

Day: 36 Hours

Environment

Temp: -123 °C

Axial Tilt: 3.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 44,332,769 km

• M1: 77,193 km (0.086 R)
• M2: 297,700 km (0.12 R)

Asteroid Belt

Center: 4.48 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.8

Radius: 13.3

Gravity: 5.39 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 4.45 AU - 6.05 AU

Year: 4329 Days

Day: 8.9 Hours

Environment

Temp: -138 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 44,332,769 km

• M1: 165,455 km (0.09 R)
• M2: 602,580 km (0.038 R)
• M3: 1,064,239 km (0.091 R)
• M4: 1,516,922 km (0.077 R)
• M5: 1,986,510 km (0.106 R)
• M6: 2,553,935 km (0.048 R)
• M7: 2,997,493 km (0.111 R)
• M8: 3,534,698 km (0.113 R)
• M9: 4,399,823 km (0.046 R)
• M10: 5,179,078 km (0.061 R)
• M11: 6,390,671 km (0.094 R)
• M12: 7,426,188 km (0.109 R)
• M13: 8,039,988 km (0.101 R)
• M14: 8,964,054 km (0.111 R)
• M15: 9,787,141 km (0.068 R)
• M16: 10,348,732 km (0.077 R)
• M17: 11,208,172 km (0.063 R)
• M18: 11,775,148 km (0.097 R)
• M19: 12,966,844 km (0.115 R)
• M20: 13,644,971 km (0.109 R)
• M21: 14,291,833 km (0.055 R)
• M22: 15,822,368 km (0.114 R)
• M23: 17,648,360 km (0.118 R)
• M24: 18,416,695 km (0.104 R)
• M25: 19,610,934 km (0.114 R)
• M26: 22,897,151 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 593.7

Radius: 9.7

Gravity: 6.31 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 9.09 AU - 9.49 AU

Year: 10190 Days

Day: 5.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 44,332,769 km

• M1: 121,324 km (0.08 R)
• M2: 437,275 km (0.052 R)
• M3: 960,269 km (0.11 R)
• M4: 1,269,787 km (0.075 R)
• M5: 1,734,587 km (0.103 R)
• M6: 2,116,660 km (0.095 R)
• M7: 2,673,464 km (0.11 R)
• M8: 3,639,118 km (0.058 R)
• M9: 5,321,795 km (0.093 R)
• M10: 6,876,565 km (0.113 R)
• M11: 7,716,857 km (0.109 R)
• M12: 9,314,412 km (0.063 R)
• M13: 11,282,073 km (0.119 R)
• M14: 11,995,505 km (0.034 R)
• M15: 13,695,087 km (0.097 R)
• M16: 16,294,798 km (0.101 R)
• M17: 29,275,855 km (0.114 R)
• M18: 31,043,503 km (0.055 R)
• M19: 31,899,502 km (0.109 R)
• M20: 32,551,599 km (0.06 R)
• M21: 33,435,124 km (0.075 R)
• M22: 37,609,353 km (0.092 R)
• M23: 39,446,715 km (0.05 R)
• M24: 40,831,542 km (0.102 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 113.9

Radius: 4.9

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 11.94 AU - 18.92 AU

Year: 21813 Days

Day: 19.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 44,332,769 km

• M1: 61,784 km (0.047 R)
• M2: 252,671 km (0.063 R)
• M3: 470,934 km (0.097 R)
• M4: 1,043,296 km (0.116 R)
• M5: 1,785,750 km (0.063 R)
• M6: 2,092,276 km (0.12 R)
• M7: 2,358,410 km (0.074 R)
• M8: 2,958,597 km (0.103 R)
• M9: 3,317,632 km (0.083 R)
• M10: 3,755,505 km (0.046 R)
• M11: 4,149,247 km (0.119 R)
• M12: 4,987,743 km (0.115 R)
• M13: 6,503,917 km (0.111 R)
• M14: 6,840,363 km (0.082 R)
• M15: 7,227,672 km (0.047 R)
• M16: 7,386,544 km (0.083 R)
• M17: 12,163,055 km (0.056 R)
• M18: 12,444,897 km (0.092 R)
• M19: 13,198,272 km (0.102 R)
• M20: 15,181,192 km (0.054 R)
• M21: 19,572,039 km (0.113 R)
• M22: 21,395,039 km (0.088 R)
• M23: 25,374,940 km (0.073 R)
• M24: 32,120,458 km (0.117 R)
• M25: 43,148,215 km (0.037 R)
• M26: 44,200,037 km (0.111 R)

Kuiper Belt

Range: 30.5 - 56.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 164 - 16,359 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit