🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.13

Radius: 1.35

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.51 AU - 0.69 AU

Year: 300 Days

Day: 42.3 Hours

Environment

Temp: -119 °C

Axial Tilt: 6.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 83,544,917 km

• M1: 38,297 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 746.9

Radius: 15

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.74 AU - 0.82 AU

Year: 445 Days

Day: 12.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 83,544,917 km

• M1: 186,549 km (0.083 R)
• M2: 691,292 km (0.09 R)
• M3: 1,316,611 km (0.111 R)
• M4: 1,859,053 km (0.113 R)
• M5: 2,466,121 km (0.053 R)
• M6: 3,103,408 km (0.074 R)
• M7: 4,128,452 km (0.064 R)
• M8: 4,743,000 km (0.09 R)
• M9: 5,239,665 km (0.111 R)
• M10: 5,874,858 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 762.7

Radius: 11

Gravity: 6.3 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 1.07 AU - 1.29 AU

Year: 828 Days

Day: 14.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 83,544,917 km

• M1: 136,732 km (0.052 R)
• M2: 502,200 km (0.093 R)
• M3: 1,139,637 km (0.103 R)
• M4: 1,521,111 km (0.053 R)
• M5: 1,988,754 km (0.095 R)
• M6: 3,047,608 km (0.119 R)
• M7: 3,535,596 km (0.068 R)
• M8: 3,950,730 km (0.029 R)
• M9: 4,826,476 km (0.104 R)
• M10: 5,376,996 km (0.08 R)
• M11: 6,133,961 km (0.041 R)
• M12: 6,758,383 km (0.079 R)
• M13: 7,640,113 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 91.8

Radius: 11.4

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.85 AU - 1.87 AU

Year: 1638 Days

Day: 9.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 83,544,917 km

• M1: 171,888 km (0.095 R)
• M2: 609,611 km (0.117 R)
• M3: 1,085,781 km (0.065 R)
• M4: 2,165,429 km (0.054 R)
• M5: 4,502,148 km (0.064 R)
• M6: 6,816,277 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 24.9

Radius: 11.4

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.49 AU - 2.48 AU

Year: 1799 Days

Day: 8.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 83,544,917 km

• M1: 141,819 km (0.069 R)
• M2: 535,560 km (0.093 R)
• M3: 1,865,037 km (0.096 R)
• M4: 2,964,132 km (0.118 R)
• M5: 3,597,230 km (0.047 R)
• M6: 4,046,922 km (0.073 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 537.3

Radius: 3.3

Gravity: 49.34 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 7.45 AU - 9.89 AU

Year: 16483 Days

Day: 21 Hours

Environment

Temp: -226 °C

Axial Tilt: 93.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 83,544,917 km

• M1: 40,990 km (0.052 R)
• M2: 213,775 km (0.074 R)
• M3: 450,589 km (0.069 R)
• M4: 611,855 km (0.109 R)
• M5: 1,544,448 km (0.119 R)
• M6: 2,463,877 km (0.117 R)
• M7: 3,317,782 km (0.06 R)
• M8: 3,504,181 km (0.072 R)
• M9: 3,725,885 km (0.064 R)
• M10: 4,608,063 km (0.108 R)
• M11: 5,220,816 km (0.04 R)
• M12: 5,771,336 km (0.107 R)
• M13: 5,924,524 km (0.058 R)
• M14: 9,640,087 km (0.09 R)
• M15: 9,910,261 km (0.049 R)
• M16: 11,698,853 km (0.111 R)
• M17: 12,382,066 km (0.11 R)
• M18: 13,091,310 km (0.115 R)
• M19: 13,759,414 km (0.118 R)
• M20: 17,522,548 km (0.055 R)
• M21: 17,924,667 km (0.066 R)
• M22: 18,664,130 km (0.066 R)
• M23: 28,073,536 km (0.116 R)
• M24: 32,437,905 km (0.103 R)
• M25: 38,704,709 km (0.091 R)
• M26: 41,336,884 km (0.076 R)
• M27: 42,048,820 km (0.07 R)
• M28: 42,479,961 km (0.062 R)
• M29: 47,573,469 km (0.057 R)
• M30: 50,589,811 km (0.108 R)
• M31: 51,896,997 km (0.111 R)
• M32: 54,069,009 km (0.078 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 614.3

Radius: 3.8

Gravity: 42.54 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 9.96 AU - 12.5 AU

Year: 24299 Days

Day: 22.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 83,544,917 km

• M1: 47,273 km (0.098 R)
• M2: 177,573 km (0.1 R)
• M3: 382,821 km (0.059 R)
• M4: 518,207 km (0.03 R)
• M5: 725,250 km (0.116 R)
• M6: 1,230,592 km (0.051 R)
• M7: 1,351,916 km (0.105 R)
• M8: 1,531,882 km (0.091 R)
• M9: 2,534,786 km (0.056 R)
• M10: 3,329,001 km (0.043 R)
• M11: 3,782,881 km (0.042 R)
• M12: 4,041,087 km (0.056 R)
• M13: 5,076,903 km (0.072 R)
• M14: 5,929,312 km (0.073 R)
• M15: 6,366,885 km (0.092 R)
• M16: 7,015,392 km (0.025 R)
• M17: 8,016,651 km (0.115 R)
• M18: 10,359,653 km (0.076 R)
• M19: 15,107,141 km (0.114 R)
• M20: 15,348,293 km (0.058 R)
• M21: 17,724,505 km (0.112 R)
• M22: 20,628,798 km (0.1 R)
• M23: 23,511,101 km (0.106 R)
• M24: 24,052,495 km (0.096 R)
• M25: 24,602,267 km (0.07 R)
• M26: 25,955,679 km (0.106 R)
• M27: 26,185,910 km (0.11 R)
• M28: 37,282,482 km (0.102 R)
• M29: 44,421,293 km (0.037 R)
• M30: 44,585,850 km (0.056 R)
• M31: 49,713,616 km (0.077 R)
• M32: 56,754,739 km (0.106 R)
• M33: 56,948,618 km (0.09 R)
• M34: 58,120,418 km (0.034 R)
• M35: 58,317,289 km (0.033 R)
• M36: 70,511,610 km (0.081 R)
• M37: 73,689,966 km (0.097 R)
• M38: 76,017,859 km (0.084 R)
• M39: 76,725,606 km (0.079 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 387 - 19,144 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit