🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1

Radius: 1

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.41 AU - 0.67 AU

Year: 145 Days

Day: 21.6 Hours

Environment

Temp: 178 °C

Axial Tilt: 23.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.17

Radius: 1.59

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.64 AU - 0.92 AU

Year: 252 Days

Day: 27.9 Hours

Environment

Temp: 104 °C

Axial Tilt: 17.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.41

Radius: 0.7

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.29 AU - 1.51 AU

Year: 605 Days

Day: 22.3 Hours

Environment

Temp: -30 °C

Axial Tilt: 38.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.12

Radius: 0.43

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 3.52 AU - 4.76 AU

Year: 3077 Days

Day: 28.3 Hours

Environment

Temp: -125 °C

Axial Tilt: 6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 113,799,659 km

• M1: 381,175 km (0.036 R)

Planet 5 - Gas Giant

Semi-Major Axis: 11.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 238.5

Radius: 10

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 9.67 AU - 13.33 AU

Year: 14244 Days

Day: 8 Hours

Environment

Temp: -181 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 113,799,659 km

• M1: 124,615 km (0.093 R)
• M2: 655,837 km (0.067 R)
• M3: 2,126,833 km (0.045 R)
• M4: 2,747,664 km (0.118 R)
• M5: 3,188,679 km (0.118 R)
• M6: 4,600,284 km (0.089 R)
• M7: 7,720,297 km (0.064 R)
• M8: 8,910,947 km (0.111 R)
• M9: 14,290,636 km (0.119 R)
• M10: 16,819,438 km (0.102 R)
• M11: 21,754,822 km (0.107 R)
• M12: 27,482,625 km (0.118 R)
• M13: 28,934,173 km (0.111 R)
• M14: 35,253,337 km (0.036 R)
• M15: 37,314,795 km (0.05 R)
• M16: 41,802,133 km (0.086 R)
• M17: 42,181,064 km (0.117 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 495.8

Radius: 6.5

Gravity: 11.73 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 12.28 AU - 13.04 AU

Year: 16453 Days

Day: 16.6 Hours

Environment

Temp: -175 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 113,799,659 km

• M1: 80,932 km (0.112 R)
• M2: 335,548 km (0.099 R)
• M3: 552,914 km (0.051 R)
• M4: 828,772 km (0.079 R)
• M5: 1,183,020 km (0.098 R)
• M6: 1,587,533 km (0.095 R)
• M7: 3,041,624 km (0.075 R)
• M8: 3,772,410 km (0.076 R)
• M9: 4,361,975 km (0.083 R)
• M10: 4,843,231 km (0.118 R)
• M11: 6,103,294 km (0.079 R)
• M12: 6,379,302 km (0.048 R)
• M13: 7,170,974 km (0.04 R)
• M14: 9,356,300 km (0.083 R)
• M15: 10,941,588 km (0.109 R)
• M16: 12,258,050 km (0.111 R)
• M17: 13,676,537 km (0.035 R)
• M18: 17,775,219 km (0.045 R)
• M19: 18,420,584 km (0.087 R)
• M20: 20,450,328 km (0.104 R)
• M21: 22,344,686 km (0.042 R)
• M22: 24,550,357 km (0.115 R)
• M23: 24,848,356 km (0.09 R)
• M24: 26,582,794 km (0.112 R)
• M25: 29,277,799 km (0.115 R)
• M26: 31,560,812 km (0.088 R)
• M27: 32,625,800 km (0.115 R)
• M28: 37,914,234 km (0.106 R)
• M29: 42,307,175 km (0.079 R)
• M30: 44,331,384 km (0.106 R)
• M31: 49,198,850 km (0.108 R)
• M32: 50,790,123 km (0.116 R)
• M33: 54,748,333 km (0.086 R)
• M34: 55,940,329 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 20 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 858.9

Radius: 7.4

Gravity: 15.68 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 17.48 AU - 22.52 AU

Year: 32669 Days

Day: 22.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 69.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 113,799,659 km

• M1: 92,003 km (0.114 R)
• M2: 410,796 km (0.091 R)
• M3: 640,877 km (0.052 R)
• M4: 1,029,233 km (0.102 R)
• M5: 1,302,848 km (0.106 R)
• M6: 2,836,675 km (0.12 R)
• M7: 4,215,668 km (0.103 R)
• M8: 5,397,192 km (0.109 R)
• M9: 6,184,825 km (0.089 R)
• M10: 6,631,674 km (0.081 R)
• M11: 7,260,733 km (0.117 R)
• M12: 8,637,332 km (0.111 R)
• M13: 9,195,781 km (0.1 R)
• M14: 10,044,599 km (0.029 R)
• M15: 12,904,462 km (0.064 R)
• M16: 15,896,419 km (0.095 R)
• M17: 17,504,148 km (0.028 R)
• M18: 18,297,016 km (0.114 R)
• M19: 23,564,208 km (0.069 R)
• M20: 25,147,402 km (0.098 R)
• M21: 32,634,177 km (0.081 R)
• M22: 33,080,577 km (0.092 R)
• M23: 34,598,248 km (0.086 R)
• M24: 36,639,810 km (0.047 R)
• M25: 42,710,192 km (0.105 R)
• M26: 43,783,108 km (0.074 R)
• M27: 52,612,374 km (0.056 R)
• M28: 54,886,561 km (0.105 R)
• M29: 60,520,866 km (0.105 R)
• M30: 63,246,689 km (0.097 R)
• M31: 68,941,580 km (0.11 R)
• M32: 76,528,736 km (0.069 R)
• M33: 79,713,225 km (0.063 R)
• M34: 84,095,097 km (0.035 R)
• M35: 84,934,191 km (0.102 R)
• M36: 95,442,843 km (0.047 R)
• M37: 97,890,264 km (0.095 R)
• M38: 105,159,075 km (0.075 R)
• M39: 108,098,524 km (0.042 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: 245 - 17,581 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit