🌌 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: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.81

Radius: 1.87

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.5 AU - 0.52 AU

Year: 134 Days

Day: 23.2 Hours

Environment

Temp: 190 °C

Axial Tilt: 32.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.67

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.67 AU - 0.77 AU

Year: 224 Days

Day: 42 Hours

Environment

Temp: 115 °C

Axial Tilt: 16.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 83,358,012 km

• M1: 604,076 km (0.12 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.13 AU - 1.17 AU

Year: 453 Days

Day: 24.1 Hours

Environment

Temp: -3 °C

Axial Tilt: 7.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 83,358,012 km

• M1: 26,329 km (0.118 R)
• M2: 80,035 km (0.117 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.99

Radius: 1.32

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.1 AU - 2.66 AU

Year: 1348 Days

Day: 13 Hours

Environment

Temp: -81 °C

Axial Tilt: 35.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.31

Radius: 0.63

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 2.44 AU - 2.96 AU

Year: 1629 Days

Day: 15.8 Hours

Environment

Temp: -90 °C

Axial Tilt: 2.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 83,358,012 km

• M1: 497,563 km (0.086 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.16

Radius: 1.06

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 3.66 AU - 3.7 AU

Year: 2591 Days

Day: 22.7 Hours

Environment

Temp: -111 °C

Axial Tilt: 16.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Ice Giant

Semi-Major Axis: 14.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 673.9

Radius: 5.1

Gravity: 25.91 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 14.08 AU - 15.34 AU

Year: 20711 Days

Day: 16.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 83,358,012 km

• M1: 63,429 km (0.082 R)
• M2: 450,439 km (0.074 R)
• M3: 769,980 km (0.09 R)
• M4: 1,080,695 km (0.07 R)
• M5: 2,216,442 km (0.052 R)
• M6: 2,413,911 km (0.073 R)
• M7: 3,704,492 km (0.102 R)
• M8: 4,377,533 km (0.093 R)
• M9: 7,794,947 km (0.094 R)
• M10: 9,737,625 km (0.118 R)
• M11: 15,008,257 km (0.118 R)
• M12: 18,153,851 km (0.092 R)
• M13: 30,668,611 km (0.117 R)
• M14: 41,499,197 km (0.092 R)
• M15: 42,580,042 km (0.111 R)
• M16: 50,676,877 km (0.061 R)
• M17: 56,860,655 km (0.08 R)
• M18: 57,619,565 km (0.09 R)
• M19: 58,001,638 km (0.047 R)
• M20: 60,329,231 km (0.118 R)
• M21: 65,376,813 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 672.7

Radius: 5.4

Gravity: 23.07 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 14.4 AU - 17.28 AU

Year: 23142 Days

Day: 17.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 83,358,012 km

• M1: 67,169 km (0.061 R)
• M2: 241,900 km (0.115 R)
• M3: 784,790 km (0.11 R)
• M4: 1,232,986 km (0.118 R)
• M5: 1,481,019 km (0.109 R)
• M6: 1,915,152 km (0.115 R)
• M7: 2,822,164 km (0.108 R)
• M8: 3,607,702 km (0.098 R)
• M9: 4,820,343 km (0.101 R)
• M10: 5,045,936 km (0.051 R)
• M11: 5,437,883 km (0.1 R)
• M12: 6,020,267 km (0.118 R)
• M13: 8,387,653 km (0.08 R)
• M14: 11,982,341 km (0.104 R)
• M15: 12,397,176 km (0.082 R)
• M16: 13,328,721 km (0.073 R)
• M17: 14,930,765 km (0.081 R)
• M18: 17,260,453 km (0.059 R)
• M19: 17,435,632 km (0.094 R)
• M20: 20,401,858 km (0.086 R)
• M21: 23,904,244 km (0.085 R)
• M22: 24,121,909 km (0.082 R)
• M23: 24,671,980 km (0.095 R)
• M24: 25,342,926 km (0.063 R)
• M25: 25,682,962 km (0.111 R)
• M26: 29,376,833 km (0.111 R)
• M27: 32,602,014 km (0.107 R)
• M28: 34,093,056 km (0.08 R)
• M29: 35,628,827 km (0.102 R)
• M30: 42,234,172 km (0.068 R)
• M31: 44,660,051 km (0.056 R)
• M32: 48,210,008 km (0.037 R)
• M33: 50,320,834 km (0.03 R)
• M34: 60,583,996 km (0.118 R)
• M35: 63,039,944 km (0.101 R)
• M36: 68,806,643 km (0.047 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 425 - 15,281 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit