🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.57

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.61 AU - 0.69 AU

Year: 187 Days

Day: 43 Hours

Environment

Temp: 163 °C

Axial Tilt: 38.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.63

Radius: 0.83

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.06 AU - 3.44 AU

Year: 1626 Days

Day: 40.6 Hours

Environment

Temp: -79 °C

Axial Tilt: 5.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.32

Radius: 1.12

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.13 AU - 3.55 AU

Year: 1706 Days

Day: 42.7 Hours

Environment

Temp: -91 °C

Axial Tilt: 43 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.58

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 3.58 AU - 5.56 AU

Year: 3482 Days

Day: 29.9 Hours

Environment

Temp: -125 °C

Axial Tilt: 12.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.76

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 4.03 AU - 5.75 AU

Year: 3854 Days

Day: 21.1 Hours

Environment

Temp: -136 °C

Axial Tilt: 24.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 23.2

Radius: 14.2

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 4.72 AU - 6.42 AU

Year: 4686 Days

Day: 5.6 Hours

Environment

Temp: -130 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 28,095,439 km

• M1: 176,525 km (0.115 R)
• M2: 619,335 km (0.057 R)
• M3: 1,064,239 km (0.09 R)
• M4: 1,520,064 km (0.061 R)
• M5: 2,119,951 km (0.094 R)
• M6: 2,999,587 km (0.077 R)
• M7: 4,286,129 km (0.116 R)
• M8: 6,015,181 km (0.104 R)
• M9: 6,823,757 km (0.077 R)
• M10: 7,849,550 km (0.042 R)
• M11: 8,554,305 km (0.045 R)
• M12: 9,218,819 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.1

Radius: 11.3

Gravity: 6.46 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 5.7 AU - 6.88 AU

Year: 5623 Days

Day: 7.3 Hours

Environment

Temp: -148 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 28,095,439 km

• M1: 144,063 km (0.093 R)
• M2: 777,161 km (0.091 R)
• M3: 1,994,738 km (0.075 R)
• M4: 2,778,182 km (0.117 R)
• M5: 3,552,800 km (0.106 R)
• M6: 4,186,796 km (0.085 R)
• M7: 4,597,143 km (0.065 R)
• M8: 5,006,143 km (0.098 R)
• M9: 5,559,206 km (0.114 R)
• M10: 6,481,777 km (0.073 R)
• M11: 7,211,365 km (0.032 R)
• M12: 9,426,012 km (0.079 R)
• M13: 10,594,820 km (0.103 R)
• M14: 12,842,379 km (0.106 R)
• M15: 13,657,538 km (0.115 R)
• M16: 15,033,090 km (0.102 R)
• M17: 16,061,875 km (0.035 R)
• M18: 17,072,408 km (0.071 R)
• M19: 18,667,122 km (0.104 R)
• M20: 20,214,113 km (0.06 R)
• M21: 20,723,793 km (0.111 R)
• M22: 24,289,458 km (0.12 R)
• M23: 27,439,241 km (0.094 R)
• M24: 28,607,750 km (0.117 R)
• M25: 32,609,942 km (0.08 R)
• M26: 34,640,883 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 854.6

Radius: 11.6

Gravity: 6.35 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 5.53 AU - 7.67 AU

Year: 6044 Days

Day: 8.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 28,095,439 km

• M1: 144,811 km (0.09 R)
• M2: 1,176,438 km (0.12 R)
• M3: 3,697,311 km (0.043 R)
• M4: 4,600,583 km (0.069 R)
• M5: 5,400,483 km (0.09 R)
• M6: 5,897,746 km (0.107 R)
• M7: 7,056,681 km (0.068 R)
• M8: 10,188,064 km (0.091 R)
• M9: 11,344,007 km (0.067 R)
• M10: 14,733,296 km (0.09 R)
• M11: 17,714,781 km (0.114 R)
• M12: 21,001,447 km (0.114 R)
• M13: 22,312,672 km (0.091 R)
• M14: 25,439,866 km (0.087 R)
• M15: 35,795,031 km (0.086 R)

Planet 9 - Gas Giant

Semi-Major Axis: 7.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 284.9

Radius: 13.3

Gravity: 1.61 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 6.02 AU - 8.48 AU

Year: 6958 Days

Day: 6.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 28,095,439 km

• M1: 165,605 km (0.098 R)
• M2: 1,013,675 km (0.067 R)
• M3: 1,479,373 km (0.11 R)
• M4: 2,727,468 km (0.105 R)
• M5: 3,273,650 km (0.096 R)
• M6: 4,442,309 km (0.118 R)
• M7: 6,168,219 km (0.118 R)
• M8: 7,216,003 km (0.055 R)
• M9: 11,165,237 km (0.08 R)
• M10: 12,090,350 km (0.076 R)
• M11: 15,452,712 km (0.028 R)
• M12: 16,897,678 km (0.077 R)
• M13: 18,304,945 km (0.091 R)
• M14: 19,328,942 km (0.1 R)
• M15: 23,960,941 km (0.09 R)
• M16: 26,212,240 km (0.113 R)

Kuiper Belt

Range: 30.8 - 47.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 150 - 14,956 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit