🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.74

Radius: 0.89

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.64 AU - 0.82 AU

Year: 231 Days

Day: 18.3 Hours

Environment

Temp: 171 °C

Axial Tilt: 43.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.71

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.82 AU - 1 AU

Year: 322 Days

Day: 12.4 Hours

Environment

Temp: 31 °C

Axial Tilt: 0.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.35

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.96 AU - 1.96 AU

Year: 1018 Days

Day: 28 Hours

Environment

Temp: -65 °C

Axial Tilt: 15.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 86,559,432 km

• M1: 971,638 km (0.037 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.83

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.95 AU - 2.03 AU

Year: 1041 Days

Day: 41.3 Hours

Environment

Temp: -64 °C

Axial Tilt: 48.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.85

Radius: 1.71

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 2.09 AU - 2.45 AU

Year: 1268 Days

Day: 26 Hours

Environment

Temp: -78 °C

Axial Tilt: 0.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.86

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 2.07 AU - 3.35 AU

Year: 1654 Days

Day: 20.3 Hours

Environment

Temp: -97 °C

Axial Tilt: 28 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 86,559,432 km

• M1: 1,570,927 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 731

Radius: 8.3

Gravity: 10.61 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 6.11 AU - 8.07 AU

Year: 7001 Days

Day: 5.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 86,559,432 km

• M1: 103,522 km (0.113 R)
• M2: 375,790 km (0.077 R)
• M3: 690,693 km (0.075 R)
• M4: 1,052,421 km (0.067 R)
• M5: 1,603,839 km (0.064 R)
• M6: 2,586,846 km (0.098 R)
• M7: 3,317,632 km (0.075 R)
• M8: 3,976,012 km (0.112 R)
• M9: 5,805,295 km (0.096 R)
• M10: 6,581,858 km (0.058 R)
• M11: 7,387,741 km (0.087 R)
• M12: 9,506,945 km (0.1 R)
• M13: 10,200,480 km (0.092 R)
• M14: 12,108,003 km (0.096 R)
• M15: 13,485,500 km (0.057 R)
• M16: 14,600,154 km (0.083 R)
• M17: 15,522,574 km (0.118 R)
• M18: 16,094,337 km (0.094 R)
• M19: 17,011,671 km (0.101 R)
• M20: 24,262,531 km (0.069 R)
• M21: 25,032,511 km (0.101 R)
• M22: 25,292,811 km (0.104 R)
• M23: 26,983,417 km (0.083 R)
• M24: 27,624,892 km (0.084 R)
• M25: 28,748,073 km (0.098 R)
• M26: 31,085,390 km (0.102 R)
• M27: 33,757,208 km (0.069 R)
• M28: 36,245,171 km (0.064 R)
• M29: 37,477,109 km (0.077 R)
• M30: 38,046,179 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 461.2

Radius: 6.4

Gravity: 11.26 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 12.41 AU - 13.31 AU

Year: 17103 Days

Day: 24.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 86,559,432 km

• M1: 82,578 km (0.093 R)
• M2: 316,250 km (0.033 R)
• M3: 838,646 km (0.097 R)
• M4: 1,122,134 km (0.066 R)
• M5: 1,341,145 km (0.105 R)
• M6: 2,139,399 km (0.037 R)
• M7: 2,741,381 km (0.099 R)
• M8: 3,948,636 km (0.086 R)
• M9: 5,260,908 km (0.038 R)
• M10: 6,309,141 km (0.097 R)
• M11: 8,371,198 km (0.094 R)
• M12: 13,432,842 km (0.092 R)
• M13: 15,735,153 km (0.105 R)
• M14: 16,180,356 km (0.11 R)
• M15: 16,863,869 km (0.101 R)
• M16: 21,284,037 km (0.057 R)
• M17: 26,523,254 km (0.09 R)
• M18: 26,732,242 km (0.052 R)
• M19: 27,901,798 km (0.079 R)
• M20: 28,226,575 km (0.09 R)
• M21: 28,663,401 km (0.094 R)
• M22: 32,681,151 km (0.091 R)
• M23: 35,389,770 km (0.095 R)
• M24: 36,281,972 km (0.114 R)
• M25: 44,407,081 km (0.082 R)
• M26: 44,998,142 km (0.117 R)
• M27: 45,894,532 km (0.115 R)
• M28: 46,347,066 km (0.12 R)
• M29: 47,877,303 km (0.051 R)
• M30: 49,599,174 km (0.065 R)
• M31: 56,726,316 km (0.034 R)
• M32: 59,364,773 km (0.106 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 423.6

Radius: 3.1

Gravity: 44.08 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 16.11 AU - 22.01 AU

Year: 30859 Days

Day: 24 Hours

Environment

Temp: -194 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 86,559,432 km

• M1: 45,029 km (0.07 R)
• M2: 494,421 km (0.117 R)
• M3: 741,108 km (0.075 R)
• M4: 1,473,240 km (0.117 R)
• M5: 3,942,203 km (0.067 R)
• M6: 4,211,330 km (0.115 R)
• M7: 6,680,443 km (0.098 R)
• M8: 7,259,087 km (0.074 R)
• M9: 13,065,878 km (0.117 R)
• M10: 23,689,870 km (0.056 R)
• M11: 26,529,686 km (0.055 R)
• M12: 27,484,270 km (0.113 R)
• M13: 30,614,456 km (0.117 R)
• M14: 31,531,641 km (0.086 R)
• M15: 41,097,228 km (0.039 R)
• M16: 76,347,722 km (0.102 R)
• M17: 80,973,737 km (0.116 R)
• M18: 84,499,460 km (0.113 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 163 - 19,820 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit