🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.74 AU - 0.84 AU

Year: 254 Days

Day: 27.8 Hours

Environment

Temp: 178 °C

Axial Tilt: 26.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.84

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.8 AU - 0.88 AU

Year: 278 Days

Day: 42.4 Hours

Environment

Temp: 182 °C

Axial Tilt: 26.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 60,693,467 km

• M1: 144,512 km (0.056 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.19

Radius: 1.77

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.78 AU - 1.24 AU

Year: 367 Days

Day: 38 Hours

Environment

Temp: 33 °C

Axial Tilt: 37.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.7

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.85 AU - 1.27 AU

Year: 395 Days

Day: 30.9 Hours

Environment

Temp: 22 °C

Axial Tilt: 4.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Gas Giant

Semi-Major Axis: 5.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 209

Radius: 12.9

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 4.53 AU - 5.57 AU

Year: 4104 Days

Day: 5.1 Hours

Environment

Temp: -129 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 60,693,467 km

• M1: 160,519 km (0.036 R)
• M2: 565,031 km (0.095 R)
• M3: 1,026,241 km (0.091 R)
• M4: 1,644,380 km (0.041 R)
• M5: 2,089,284 km (0.108 R)
• M6: 2,910,576 km (0.118 R)
• M7: 3,553,099 km (0.099 R)
• M8: 4,746,890 km (0.081 R)
• M9: 6,012,787 km (0.063 R)
• M10: 6,752,249 km (0.111 R)
• M11: 7,172,919 km (0.086 R)
• M12: 10,041,159 km (0.109 R)
• M13: 10,516,282 km (0.095 R)
• M14: 11,006,364 km (0.056 R)
• M15: 12,527,026 km (0.032 R)
• M16: 12,949,491 km (0.08 R)
• M17: 14,002,510 km (0.108 R)
• M18: 15,932,472 km (0.026 R)
• M19: 17,505,195 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 581.4

Radius: 14.2

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 6.15 AU - 7.61 AU

Year: 6526 Days

Day: 8.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 60,693,467 km

• M1: 176,525 km (0.098 R)
• M2: 720,164 km (0.094 R)
• M3: 1,332,019 km (0.03 R)
• M4: 2,433,209 km (0.107 R)
• M5: 3,070,197 km (0.099 R)
• M6: 3,933,377 km (0.11 R)
• M7: 4,499,754 km (0.111 R)
• M8: 5,148,560 km (0.12 R)
• M9: 6,078,461 km (0.033 R)
• M10: 7,661,805 km (0.103 R)
• M11: 8,272,463 km (0.117 R)
• M12: 8,956,873 km (0.067 R)
• M13: 10,999,782 km (0.045 R)
• M14: 11,728,623 km (0.099 R)
• M15: 12,232,319 km (0.12 R)
• M16: 13,229,089 km (0.115 R)
• M17: 13,775,122 km (0.041 R)
• M18: 14,738,083 km (0.107 R)
• M19: 15,989,020 km (0.104 R)
• M20: 20,024,273 km (0.109 R)
• M21: 22,086,181 km (0.079 R)
• M22: 25,439,118 km (0.105 R)
• M23: 29,949,943 km (0.03 R)
• M24: 31,661,791 km (0.11 R)
• M25: 32,640,460 km (0.054 R)
• M26: 33,841,432 km (0.072 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.3

Radius: 14.2

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 5.68 AU - 8.82 AU

Year: 7060 Days

Day: 14.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 60,693,467 km

• M1: 200,760 km (0.072 R)
• M2: 1,110,016 km (0.075 R)
• M3: 2,748,562 km (0.088 R)
• M4: 3,236,550 km (0.049 R)
• M5: 4,564,979 km (0.12 R)
• M6: 8,387,653 km (0.115 R)
• M7: 11,236,146 km (0.098 R)
• M8: 11,855,631 km (0.115 R)
• M9: 12,397,624 km (0.057 R)
• M10: 13,267,835 km (0.081 R)
• M11: 13,798,459 km (0.089 R)
• M12: 16,243,935 km (0.053 R)
• M13: 16,975,170 km (0.044 R)
• M14: 18,437,788 km (0.108 R)
• M15: 25,868,464 km (0.042 R)
• M16: 27,802,914 km (0.092 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 735.2

Radius: 14

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 7.09 AU - 10.23 AU

Year: 9217 Days

Day: 14 Hours

Environment

Temp: -162 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 60,693,467 km

• M1: 174,282 km (0.107 R)
• M2: 621,579 km (0.03 R)
• M3: 1,085,482 km (0.117 R)
• M4: 1,705,715 km (0.097 R)
• M5: 2,407,329 km (0.043 R)
• M6: 3,204,686 km (0.118 R)
• M7: 3,678,761 km (0.103 R)
• M8: 4,920,424 km (0.06 R)
• M9: 5,588,528 km (0.064 R)
• M10: 6,798,176 km (0.045 R)
• M11: 8,931,142 km (0.096 R)
• M12: 10,377,155 km (0.045 R)
• M13: 10,840,161 km (0.113 R)
• M14: 11,642,454 km (0.12 R)
• M15: 12,369,500 km (0.028 R)
• M16: 14,038,414 km (0.079 R)
• M17: 15,187,924 km (0.108 R)
• M18: 16,676,871 km (0.077 R)
• M19: 17,819,650 km (0.119 R)
• M20: 19,552,741 km (0.086 R)
• M21: 22,573,122 km (0.086 R)
• M22: 24,782,084 km (0.085 R)
• M23: 25,425,505 km (0.095 R)
• M24: 28,211,017 km (0.105 R)
• M25: 28,811,802 km (0.086 R)
• M26: 35,182,726 km (0.097 R)
• M27: 35,995,940 km (0.071 R)
• M28: 41,784,480 km (0.102 R)
• M29: 44,022,614 km (0.071 R)
• M30: 44,560,568 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 196.7

Radius: 6.1

Gravity: 5.29 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 13.29 AU - 21.81 AU

Year: 26589 Days

Day: 19.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 60,693,467 km

• M1: 154,385 km (0.098 R)
• M2: 842,685 km (0.107 R)
• M3: 2,025,106 km (0.064 R)
• M4: 2,903,994 km (0.074 R)
• M5: 3,926,346 km (0.051 R)
• M6: 4,346,117 km (0.117 R)
• M7: 6,249,601 km (0.068 R)
• M8: 10,438,640 km (0.101 R)
• M9: 11,420,451 km (0.083 R)
• M10: 11,964,389 km (0.083 R)
• M11: 20,425,345 km (0.109 R)
• M12: 37,830,609 km (0.114 R)
• M13: 41,244,432 km (0.113 R)
• M14: 43,533,728 km (0.108 R)

Kuiper Belt

Range: 30.3 - 50.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 162 - 19,012 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit