🌌 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: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.84

Radius: 0.93

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.63 AU - 0.77 AU

Year: 209 Days

Day: 22.1 Hours

Environment

Temp: 208 °C

Axial Tilt: 43.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.79

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.71 AU - 0.79 AU

Year: 232 Days

Day: 33.7 Hours

Environment

Temp: 164 °C

Axial Tilt: 5.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.12

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.9 AU - 2.4 AU

Year: 1124 Days

Day: 16.2 Hours

Environment

Temp: -63 °C

Axial Tilt: 20.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,033,176 km

• M1: 1,487,302 km (0.092 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.93

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 2.99 AU - 4.01 AU

Year: 2334 Days

Day: 26.6 Hours

Environment

Temp: -106 °C

Axial Tilt: 18.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.27 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 7.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 336.6

Radius: 15

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 6.68 AU - 7.4 AU

Year: 6658 Days

Day: 12.3 Hours

Environment

Temp: -148 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 68,033,176 km

• M1: 188,045 km (0.108 R)
• M2: 738,116 km (0.061 R)
• M3: 1,244,654 km (0.12 R)
• M4: 1,925,773 km (0.078 R)
• M5: 2,610,782 km (0.11 R)
• M6: 3,180,600 km (0.084 R)
• M7: 3,789,912 km (0.051 R)
• M8: 6,786,956 km (0.12 R)
• M9: 7,592,990 km (0.107 R)
• M10: 8,727,839 km (0.106 R)
• M11: 9,723,114 km (0.106 R)
• M12: 10,269,894 km (0.073 R)
• M13: 13,628,366 km (0.029 R)
• M14: 16,689,587 km (0.091 R)
• M15: 17,475,275 km (0.061 R)
• M16: 20,936,671 km (0.118 R)
• M17: 24,138,813 km (0.073 R)
• M18: 24,676,767 km (0.051 R)
• M19: 25,301,338 km (0.109 R)
• M20: 26,016,566 km (0.061 R)
• M21: 26,991,196 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 11.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.6

Radius: 13

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 10.15 AU - 12.15 AU

Year: 13271 Days

Day: 14.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 142.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 68,033,176 km

• M1: 421,567 km (0.035 R)
• M2: 1,139,038 km (0.103 R)
• M3: 2,016,131 km (0.068 R)
• M4: 4,771,873 km (0.113 R)
• M5: 9,129,659 km (0.114 R)
• M6: 9,954,542 km (0.042 R)
• M7: 11,117,366 km (0.119 R)
• M8: 14,996,887 km (0.107 R)
• M9: 21,268,329 km (0.055 R)
• M10: 22,182,971 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 12.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736.8

Radius: 11.7

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 12.28 AU - 13.3 AU

Year: 16304 Days

Day: 5.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 68,033,176 km

• M1: 145,858 km (0.047 R)
• M2: 589,416 km (0.08 R)
• M3: 960,718 km (0.085 R)
• M4: 1,423,274 km (0.07 R)
• M5: 2,167,972 km (0.079 R)
• M6: 3,081,267 km (0.096 R)
• M7: 4,234,817 km (0.113 R)
• M8: 4,688,846 km (0.057 R)
• M9: 6,208,910 km (0.078 R)
• M10: 6,839,914 km (0.067 R)
• M11: 7,653,277 km (0.06 R)
• M12: 9,097,944 km (0.05 R)
• M13: 9,636,048 km (0.115 R)
• M14: 12,651,791 km (0.118 R)
• M15: 13,391,253 km (0.105 R)
• M16: 13,876,549 km (0.097 R)
• M17: 15,479,041 km (0.087 R)
• M18: 16,091,345 km (0.077 R)
• M19: 16,719,656 km (0.101 R)
• M20: 18,277,569 km (0.08 R)
• M21: 28,329,798 km (0.104 R)
• M22: 33,363,168 km (0.108 R)
• M23: 34,773,875 km (0.074 R)
• M24: 37,303,426 km (0.111 R)
• M25: 38,822,592 km (0.093 R)
• M26: 40,526,662 km (0.11 R)
• M27: 42,279,949 km (0.083 R)
• M28: 43,025,245 km (0.095 R)
• M29: 46,566,975 km (0.114 R)
• M30: 47,521,858 km (0.112 R)
• M31: 48,815,281 km (0.117 R)
• M32: 61,341,410 km (0.113 R)
• M33: 66,216,655 km (0.111 R)

Kuiper Belt

Range: 30.8 - 52.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 548 - 16,480 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit