🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.23

Radius: 0.56

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.47 AU - 0.57 AU

Year: 137 Days

Day: 46.8 Hours

Environment

Temp: 232 °C

Axial Tilt: 35.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.12

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.71 AU - 0.87 AU

Year: 256 Days

Day: 27.5 Hours

Environment

Temp: 102 °C

Axial Tilt: 8.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.18 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.15

Radius: 1.06

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.03 AU - 1.33 AU

Year: 468 Days

Day: 12.5 Hours

Environment

Temp: -6 °C

Axial Tilt: 46.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.33

Radius: 1.12

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.69 AU - 1.83 AU

Year: 853 Days

Day: 15.9 Hours

Environment

Temp: -50 °C

Axial Tilt: 38.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.93

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.49 AU - 2.09 AU

Year: 875 Days

Day: 32.8 Hours

Environment

Temp: -48 °C

Axial Tilt: 6.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.31

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 3.27 AU - 4.19 AU

Year: 2631 Days

Day: 39.7 Hours

Environment

Temp: -115 °C

Axial Tilt: 3.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.85

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 3.33 AU - 5.17 AU

Year: 3200 Days

Day: 45.2 Hours

Environment

Temp: -124 °C

Axial Tilt: 8.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 4.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.36

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 4.38 AU - 4.6 AU

Year: 3475 Days

Day: 38 Hours

Environment

Temp: -127 °C

Axial Tilt: 36.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 80,773,154 km

• M1: 1,410,858 km (0.049 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 799.7

Radius: 12.5

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 3.91 AU - 6.31 AU

Year: 4219 Days

Day: 13.1 Hours

Environment

Temp: -138 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 80,773,154 km

• M1: 155,432 km (0.082 R)
• M2: 698,921 km (0.074 R)
• M3: 1,644,529 km (0.081 R)
• M4: 2,232,449 km (0.064 R)
• M5: 2,643,694 km (0.116 R)
• M6: 3,087,102 km (0.061 R)
• M7: 4,012,215 km (0.117 R)
• M8: 5,275,270 km (0.088 R)
• M9: 5,895,802 km (0.047 R)
• M10: 6,983,079 km (0.044 R)
• M11: 7,697,110 km (0.04 R)
• M12: 8,878,185 km (0.12 R)
• M13: 10,563,405 km (0.082 R)
• M14: 11,412,971 km (0.03 R)
• M15: 13,146,960 km (0.078 R)
• M16: 14,830,385 km (0.111 R)
• M17: 15,952,967 km (0.074 R)
• M18: 16,476,410 km (0.063 R)
• M19: 17,435,033 km (0.108 R)
• M20: 19,332,234 km (0.1 R)
• M21: 19,727,621 km (0.083 R)
• M22: 21,433,635 km (0.06 R)
• M23: 25,450,787 km (0.1 R)
• M24: 26,407,166 km (0.108 R)
• M25: 27,886,689 km (0.058 R)

Planet 10 - Ice Giant

Semi-Major Axis: 15.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 682

Radius: 5.1

Gravity: 26.22 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 14.01 AU - 16.65 AU

Year: 21923 Days

Day: 16.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 80,773,154 km

• M1: 68,217 km (0.11 R)
• M2: 266,434 km (0.053 R)
• M3: 789,727 km (0.107 R)
• M4: 1,582,446 km (0.095 R)
• M5: 2,538,377 km (0.096 R)
• M6: 2,990,312 km (0.069 R)
• M7: 4,020,443 km (0.11 R)
• M8: 4,457,269 km (0.106 R)
• M9: 6,000,371 km (0.082 R)
• M10: 6,570,338 km (0.118 R)
• M11: 9,734,333 km (0.085 R)
• M12: 11,675,815 km (0.112 R)
• M13: 13,861,140 km (0.107 R)
• M14: 14,466,413 km (0.079 R)
• M15: 16,387,998 km (0.065 R)
• M16: 19,113,222 km (0.113 R)
• M17: 21,720,713 km (0.102 R)
• M18: 26,462,218 km (0.098 R)
• M19: 26,692,748 km (0.062 R)
• M20: 29,441,310 km (0.035 R)
• M21: 30,692,995 km (0.056 R)
• M22: 32,372,830 km (0.114 R)
• M23: 32,901,658 km (0.062 R)
• M24: 35,353,418 km (0.116 R)
• M25: 36,055,480 km (0.034 R)
• M26: 37,487,282 km (0.105 R)
• M27: 40,007,707 km (0.089 R)
• M28: 43,274,326 km (0.089 R)
• M29: 50,509,178 km (0.068 R)
• M30: 52,300,014 km (0.103 R)
• M31: 57,925,642 km (0.081 R)
• M32: 62,298,238 km (0.069 R)
• M33: 63,321,936 km (0.049 R)
• M34: 68,825,792 km (0.072 R)
• M35: 72,141,778 km (0.092 R)
• M36: 76,492,832 km (0.093 R)
• M37: 78,613,531 km (0.114 R)
• M38: 78,851,542 km (0.118 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 458 - 17,447 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit