🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.75

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.5 AU - 0.62 AU

Year: 275 Days

Day: 24.5 Hours

Environment

Temp: -133 °C

Axial Tilt: 34.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,912,482 km

• M1: 299,794 km (0.102 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.91

Radius: 0.96

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.5 AU - 0.62 AU

Year: 275 Days

Day: 18.8 Hours

Environment

Temp: -127 °C

Axial Tilt: 3.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,912,482 km

• M1: 39,943 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 693.4

Radius: 12

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.78 AU - 0.78 AU

Year: 452 Days

Day: 12.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,912,482 km

• M1: 149,299 km (0.066 R)
• M2: 578,046 km (0.117 R)
• M3: 1,051,224 km (0.112 R)
• M4: 1,575,864 km (0.043 R)
• M5: 2,245,464 km (0.111 R)
• M6: 2,764,120 km (0.029 R)
• M7: 3,142,303 km (0.119 R)
• M8: 4,264,287 km (0.094 R)
• M9: 4,757,661 km (0.086 R)
• M10: 5,224,257 km (0.077 R)
• M11: 6,070,382 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.2

Radius: 14.9

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.11 AU - 1.21 AU

Year: 820 Days

Day: 6.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,912,482 km

• M1: 185,950 km (0.095 R)
• M2: 676,033 km (0.086 R)
• M3: 1,147,864 km (0.103 R)
• M4: 1,639,742 km (0.116 R)
• M5: 2,576,823 km (0.058 R)
• M6: 3,496,551 km (0.114 R)
• M7: 4,565,129 km (0.07 R)
• M8: 5,251,334 km (0.071 R)
• M9: 5,716,883 km (0.12 R)
• M10: 6,247,656 km (0.045 R)
• M11: 6,871,778 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 24.6

Radius: 9

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.37 AU - 1.37 AU

Year: 1052 Days

Day: 14.3 Hours

Environment

Temp: -164 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 45,912,482 km

• M1: 114,293 km (0.089 R)
• M2: 588,967 km (0.098 R)
• M3: 997,967 km (0.082 R)
• M4: 1,450,202 km (0.1 R)
• M5: 1,993,242 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.1

Radius: 13.8

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.88 AU - 2.2 AU

Year: 1911 Days

Day: 14.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 45,912,482 km

• M1: 171,738 km (0.087 R)
• M2: 654,491 km (0.089 R)
• M3: 1,178,981 km (0.114 R)
• M4: 1,790,687 km (0.105 R)
• M5: 2,253,094 km (0.102 R)
• M6: 3,037,136 km (0.117 R)
• M7: 3,632,984 km (0.08 R)
• M8: 4,266,531 km (0.104 R)
• M9: 6,409,820 km (0.068 R)
• M10: 6,863,401 km (0.04 R)
• M11: 7,865,706 km (0.089 R)
• M12: 8,768,230 km (0.073 R)
• M13: 9,497,969 km (0.062 R)
• M14: 10,124,933 km (0.075 R)
• M15: 10,853,924 km (0.088 R)
• M16: 12,052,652 km (0.076 R)
• M17: 12,498,603 km (0.096 R)
• M18: 13,423,866 km (0.105 R)
• M19: 16,277,744 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.2

Radius: 9.6

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 2.23 AU - 2.95 AU

Year: 2734 Days

Day: 13.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 45,912,482 km

• M1: 119,529 km (0.115 R)
• M2: 432,487 km (0.117 R)
• M3: 892,501 km (0.103 R)
• M4: 1,521,560 km (0.038 R)
• M5: 2,735,696 km (0.087 R)
• M6: 3,075,283 km (0.119 R)
• M7: 3,786,621 km (0.116 R)
• M8: 4,190,984 km (0.041 R)
• M9: 9,940,779 km (0.092 R)
• M10: 11,374,225 km (0.083 R)
• M11: 12,179,660 km (0.072 R)
• M12: 13,395,741 km (0.112 R)
• M13: 14,206,562 km (0.085 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727.5

Radius: 14

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 2.58 AU - 3.56 AU

Year: 3529 Days

Day: 13.6 Hours

Environment

Temp: -204 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 45,912,482 km

• M1: 184,305 km (0.062 R)
• M2: 661,971 km (0.063 R)
• M3: 1,240,615 km (0.116 R)
• M4: 2,075,072 km (0.117 R)
• M5: 3,603,065 km (0.119 R)
• M6: 4,341,629 km (0.084 R)
• M7: 5,869,323 km (0.09 R)
• M8: 6,470,856 km (0.086 R)
• M9: 7,018,982 km (0.025 R)
• M10: 7,631,137 km (0.029 R)
• M11: 8,526,331 km (0.096 R)
• M12: 9,414,044 km (0.051 R)
• M13: 10,859,908 km (0.089 R)
• M14: 11,460,543 km (0.073 R)
• M15: 14,290,037 km (0.118 R)
• M16: 14,803,308 km (0.069 R)
• M17: 17,556,956 km (0.12 R)
• M18: 19,614,226 km (0.03 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 565.8

Radius: 5.9

Gravity: 16.25 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 6.72 AU - 7.84 AU

Year: 12886 Days

Day: 18.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 45,912,482 km

• M1: 73,602 km (0.079 R)
• M2: 260,151 km (0.058 R)
• M3: 671,096 km (0.053 R)
• M4: 965,654 km (0.087 R)
• M5: 1,317,508 km (0.073 R)
• M6: 1,627,176 km (0.102 R)
• M7: 1,950,008 km (0.054 R)
• M8: 3,108,345 km (0.047 R)
• M9: 3,375,975 km (0.108 R)
• M10: 3,957,462 km (0.102 R)
• M11: 5,954,893 km (0.047 R)
• M12: 6,291,937 km (0.099 R)
• M13: 6,881,951 km (0.097 R)
• M14: 9,263,699 km (0.069 R)
• M15: 9,870,468 km (0.09 R)
• M16: 10,503,566 km (0.067 R)
• M17: 11,332,487 km (0.109 R)
• M18: 14,410,464 km (0.116 R)
• M19: 16,356,732 km (0.1 R)
• M20: 17,849,719 km (0.108 R)
• M21: 18,550,286 km (0.036 R)
• M22: 21,018,052 km (0.066 R)
• M23: 22,063,741 km (0.108 R)
• M24: 23,143,539 km (0.035 R)
• M25: 23,976,200 km (0.113 R)
• M26: 31,481,974 km (0.045 R)
• M27: 33,196,964 km (0.075 R)
• M28: 33,664,458 km (0.075 R)
• M29: 49,669,335 km (0.072 R)
• M30: 50,127,703 km (0.065 R)
• M31: 50,897,684 km (0.061 R)
• M32: 52,461,430 km (0.1 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 175.6

Radius: 6.6

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 7.52 AU - 11.02 AU

Year: 18515 Days

Day: 15.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 48.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 45,912,482 km

• M1: 90,507 km (0.089 R)
• M2: 692,189 km (0.059 R)
• M3: 1,176,886 km (0.08 R)
• M4: 2,047,097 km (0.079 R)
• M5: 2,677,203 km (0.12 R)
• M6: 5,914,651 km (0.043 R)
• M7: 7,379,214 km (0.106 R)
• M8: 8,931,890 km (0.036 R)
• M9: 12,610,203 km (0.053 R)
• M10: 18,653,658 km (0.087 R)
• M11: 19,185,628 km (0.059 R)
• M12: 32,065,406 km (0.106 R)
• M13: 41,781,040 km (0.113 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 344 - 16,818 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit