🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891

Radius: 10.4

Gravity: 8.24 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.39 AU - 0.65 AU

Year: 259 Days

Day: 9.4 Hours

Environment

Temp: -137 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,974,160 km

• M1: 129,402 km (0.034 R)
• M2: 487,988 km (0.025 R)
• M3: 944,561 km (0.091 R)
• M4: 1,431,801 km (0.026 R)
• M5: 1,845,888 km (0.083 R)
• M6: 2,248,755 km (0.112 R)
• M7: 2,636,662 km (0.06 R)
• M8: 3,244,628 km (0.096 R)
• M9: 3,593,640 km (0.073 R)
• M10: 4,303,931 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994.4

Radius: 8.8

Gravity: 12.84 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.64 AU - 0.78 AU

Year: 413 Days

Day: 12.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 70,974,160 km

• M1: 109,506 km (0.098 R)
• M2: 389,852 km (0.062 R)
• M3: 746,194 km (0.099 R)
• M4: 1,118,842 km (0.086 R)
• M5: 1,909,018 km (0.119 R)
• M6: 2,268,053 km (0.1 R)
• M7: 3,228,621 km (0.027 R)
• M8: 3,780,787 km (0.117 R)
• M9: 4,221,054 km (0.087 R)
• M10: 5,661,681 km (0.082 R)
• M11: 6,072,626 km (0.082 R)
• M12: 6,370,177 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 338.9

Radius: 13

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.6 AU - 0.84 AU

Year: 422 Days

Day: 6.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 70,974,160 km

• M1: 161,715 km (0.082 R)
• M2: 584,628 km (0.028 R)
• M3: 1,147,864 km (0.075 R)
• M4: 1,586,037 km (0.082 R)
• M5: 2,216,442 km (0.105 R)
• M6: 2,704,580 km (0.037 R)
• M7: 3,925,149 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212.4

Radius: 12.2

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.74 AU - 0.78 AU

Year: 457 Days

Day: 6.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 70,974,160 km

• M1: 151,692 km (0.039 R)
• M2: 550,969 km (0.082 R)
• M3: 1,002,306 km (0.089 R)
• M4: 1,397,543 km (0.096 R)
• M5: 2,275,982 km (0.076 R)
• M6: 2,694,258 km (0.106 R)
• M7: 3,557,288 km (0.107 R)
• M8: 4,006,829 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 98.1

Radius: 11.6

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.99 AU - 1.35 AU

Year: 874 Days

Day: 8.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,974,160 km

• M1: 144,362 km (0.111 R)
• M2: 509,680 km (0.092 R)
• M3: 972,536 km (0.072 R)
• M4: 1,348,475 km (0.101 R)
• M5: 2,055,176 km (0.048 R)
• M6: 2,462,830 km (0.107 R)
• M7: 3,129,587 km (0.088 R)
• M8: 3,840,177 km (0.064 R)
• M9: 4,424,656 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 525.1

Radius: 14.8

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.27 AU - 1.31 AU

Year: 1011 Days

Day: 11.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 70,974,160 km

• M1: 184,005 km (0.112 R)
• M2: 804,388 km (0.108 R)
• M3: 1,302,997 km (0.043 R)
• M4: 1,959,433 km (0.076 R)
• M5: 2,725,075 km (0.079 R)
• M6: 3,185,537 km (0.07 R)
• M7: 3,846,760 km (0.075 R)
• M8: 4,315,899 km (0.054 R)
• M9: 4,858,490 km (0.087 R)
• M10: 5,758,620 km (0.081 R)
• M11: 6,504,665 km (0.076 R)
• M12: 7,105,749 km (0.106 R)
• M13: 8,014,856 km (0.103 R)
• M14: 8,497,757 km (0.098 R)
• M15: 9,522,503 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185.7

Radius: 12.1

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.72 AU - 2.04 AU

Year: 1779 Days

Day: 9.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,974,160 km

• M1: 161,715 km (0.04 R)
• M2: 741,557 km (0.107 R)
• M3: 1,874,910 km (0.109 R)
• M4: 2,613,026 km (0.101 R)
• M5: 3,096,078 km (0.107 R)
• M6: 3,817,738 km (0.094 R)
• M7: 4,510,825 km (0.105 R)
• M8: 5,537,216 km (0.101 R)
• M9: 7,218,546 km (0.057 R)
• M10: 9,189,947 km (0.11 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261.5

Radius: 9.7

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 3 AU - 4.96 AU

Year: 5481 Days

Day: 5.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 70,974,160 km

• M1: 122,072 km (0.109 R)
• M2: 546,930 km (0.112 R)
• M3: 2,846,099 km (0.111 R)
• M4: 3,175,664 km (0.071 R)
• M5: 3,891,489 km (0.103 R)
• M6: 4,365,864 km (0.063 R)
• M7: 7,245,474 km (0.058 R)
• M8: 8,482,498 km (0.104 R)
• M9: 14,297,667 km (0.096 R)
• M10: 14,651,167 km (0.094 R)
• M11: 17,578,348 km (0.099 R)
• M12: 19,485,571 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 135.6

Radius: 6.2

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 5.88 AU - 6.16 AU

Year: 10195 Days

Day: 20 Hours

Environment

Temp: -225 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 70,974,160 km

• M1: 78,838 km (0.058 R)
• M2: 316,699 km (0.099 R)
• M3: 544,985 km (0.036 R)
• M4: 1,449,454 km (0.08 R)
• M5: 1,965,716 km (0.055 R)
• M6: 3,356,827 km (0.108 R)
• M7: 3,562,524 km (0.108 R)
• M8: 4,114,241 km (0.059 R)
• M9: 4,350,306 km (0.092 R)
• M10: 4,849,664 km (0.045 R)
• M11: 5,059,849 km (0.079 R)
• M12: 6,295,677 km (0.05 R)
• M13: 8,413,833 km (0.111 R)
• M14: 10,050,284 km (0.094 R)
• M15: 12,270,915 km (0.099 R)
• M16: 14,097,206 km (0.075 R)
• M17: 14,364,388 km (0.102 R)
• M18: 16,039,285 km (0.047 R)
• M19: 17,469,740 km (0.114 R)
• M20: 18,725,016 km (0.099 R)
• M21: 21,203,853 km (0.09 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 846.5

Radius: 3.5

Gravity: 69.1 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 6.96 AU - 9.44 AU

Year: 16208 Days

Day: 23.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 70,974,160 km

• M1: 43,533 km (0.115 R)
• M2: 436,826 km (0.086 R)
• M3: 1,424,172 km (0.089 R)
• M4: 2,523,716 km (0.112 R)
• M5: 2,856,123 km (0.119 R)
• M6: 3,997,405 km (0.061 R)
• M7: 4,549,122 km (0.106 R)
• M8: 7,267,614 km (0.059 R)
• M9: 7,887,847 km (0.06 R)
• M10: 8,963,156 km (0.067 R)
• M11: 13,882,982 km (0.095 R)
• M12: 16,382,164 km (0.11 R)
• M13: 23,752,402 km (0.03 R)
• M14: 25,970,490 km (0.063 R)
• M15: 27,073,624 km (0.066 R)
• M16: 27,298,021 km (0.036 R)
• M17: 29,728,687 km (0.114 R)
• M18: 35,281,311 km (0.072 R)
• M19: 39,152,456 km (0.096 R)
• M20: 42,385,415 km (0.111 R)
• M21: 43,757,676 km (0.076 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 484 - 14,005 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit