🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.35

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.53 AU - 0.75 AU

Year: 331 Days

Day: 24.6 Hours

Environment

Temp: -130 °C

Axial Tilt: 31 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,339,720 km

• M1: 82,279 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 350.2

Radius: 12.3

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.57 AU - 0.93 AU

Year: 419 Days

Day: 6.6 Hours

Environment

Temp: -132 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,339,720 km

• M1: 153,039 km (0.119 R)
• M2: 660,175 km (0.118 R)
• M3: 1,148,463 km (0.079 R)
• M4: 1,767,648 km (0.111 R)
• M5: 2,155,705 km (0.113 R)
• M6: 3,201,544 km (0.031 R)
• M7: 3,833,146 km (0.07 R)
• M8: 4,376,336 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 929.9

Radius: 11.5

Gravity: 7.03 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 2.45 AU - 3.65 AU

Year: 3439 Days

Day: 6 Hours

Environment

Temp: -203 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 66,339,720 km

• M1: 143,016 km (0.097 R)
• M2: 572,661 km (0.095 R)
• M3: 937,530 km (0.102 R)
• M4: 1,434,344 km (0.114 R)
• M5: 2,132,069 km (0.111 R)
• M6: 2,681,542 km (0.104 R)
• M7: 4,066,369 km (0.07 R)
• M8: 4,717,718 km (0.09 R)
• M9: 5,628,470 km (0.099 R)
• M10: 7,031,100 km (0.11 R)
• M11: 7,558,283 km (0.111 R)
• M12: 7,935,868 km (0.099 R)
• M13: 10,263,910 km (0.052 R)
• M14: 11,427,333 km (0.052 R)
• M15: 13,161,770 km (0.11 R)
• M16: 14,066,239 km (0.119 R)
• M17: 15,011,698 km (0.07 R)
• M18: 18,224,761 km (0.089 R)
• M19: 20,253,158 km (0.109 R)
• M20: 20,983,944 km (0.057 R)
• M21: 21,663,417 km (0.064 R)
• M22: 25,436,126 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.6

Radius: 9.9

Gravity: 5.8 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 3.55 AU - 3.81 AU

Year: 4558 Days

Day: 9.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 66,339,720 km

• M1: 123,568 km (0.098 R)
• M2: 584,479 km (0.079 R)
• M3: 985,252 km (0.07 R)
• M4: 1,311,225 km (0.076 R)
• M5: 2,354,670 km (0.076 R)
• M6: 5,251,334 km (0.076 R)
• M7: 6,121,545 km (0.066 R)
• M8: 9,350,017 km (0.036 R)
• M9: 12,677,672 km (0.069 R)
• M10: 13,771,681 km (0.056 R)
• M11: 14,499,923 km (0.118 R)
• M12: 14,819,763 km (0.109 R)
• M13: 15,473,656 km (0.102 R)
• M14: 18,407,120 km (0.115 R)
• M15: 21,761,703 km (0.091 R)
• M16: 23,472,953 km (0.095 R)
• M17: 25,195,423 km (0.096 R)
• M18: 26,205,508 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.8

Radius: 10.7

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 3.85 AU - 5.73 AU

Year: 6769 Days

Day: 14.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 66,339,720 km

• M1: 133,142 km (0.103 R)
• M2: 473,627 km (0.067 R)
• M3: 875,896 km (0.119 R)
• M4: 1,318,705 km (0.083 R)
• M5: 1,897,799 km (0.082 R)
• M6: 2,294,831 km (0.112 R)
• M7: 2,685,731 km (0.119 R)
• M8: 3,365,055 km (0.116 R)
• M9: 3,794,251 km (0.1 R)
• M10: 4,176,174 km (0.054 R)
• M11: 6,403,836 km (0.118 R)
• M12: 11,448,725 km (0.113 R)
• M13: 14,347,184 km (0.077 R)
• M14: 16,408,343 km (0.045 R)
• M15: 16,939,565 km (0.098 R)
• M16: 17,537,209 km (0.08 R)
• M17: 18,947,618 km (0.098 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 870.2

Radius: 4.2

Gravity: 49.33 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 6.31 AU - 9.57 AU

Year: 14446 Days

Day: 15.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 66,339,720 km

• M1: 52,210 km (0.084 R)
• M2: 303,833 km (0.094 R)
• M3: 590,463 km (0.048 R)
• M4: 837,898 km (0.117 R)
• M5: 1,719,628 km (0.101 R)
• M6: 2,124,140 km (0.112 R)
• M7: 2,703,832 km (0.106 R)
• M8: 2,870,035 km (0.047 R)
• M9: 3,355,779 km (0.09 R)
• M10: 4,294,656 km (0.066 R)
• M11: 4,789,974 km (0.053 R)
• M12: 5,213,037 km (0.084 R)
• M13: 5,893,558 km (0.08 R)
• M14: 6,379,003 km (0.058 R)
• M15: 7,429,030 km (0.09 R)
• M16: 8,793,662 km (0.106 R)
• M17: 9,212,386 km (0.108 R)
• M18: 14,227,655 km (0.097 R)
• M19: 17,185,953 km (0.083 R)
• M20: 18,088,926 km (0.1 R)
• M21: 20,348,302 km (0.102 R)
• M22: 22,594,514 km (0.079 R)
• M23: 22,788,842 km (0.071 R)
• M24: 25,417,576 km (0.081 R)
• M25: 25,733,377 km (0.05 R)
• M26: 26,588,179 km (0.038 R)
• M27: 27,022,611 km (0.1 R)
• M28: 27,351,427 km (0.109 R)
• M29: 27,683,086 km (0.099 R)
• M30: 28,241,535 km (0.107 R)
• M31: 30,432,695 km (0.116 R)
• M32: 31,147,473 km (0.075 R)
• M33: 32,117,915 km (0.058 R)
• M34: 32,486,973 km (0.108 R)
• M35: 37,003,632 km (0.037 R)
• M36: 38,782,500 km (0.071 R)
• M37: 45,844,118 km (0.072 R)
• M38: 56,348,731 km (0.036 R)
• M39: 58,699,213 km (0.111 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: 446 - 16,813 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit