🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.92

Radius: 0.97

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.51 AU - 0.51 AU

Year: 235 Days

Day: 12.6 Hours

Environment

Temp: -111 °C

Axial Tilt: 23.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 233.9

Radius: 9.7

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.96 AU - 1.32 AU

Year: 786 Days

Day: 9.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,604,351 km

• M1: 120,576 km (0.051 R)
• M2: 425,905 km (0.109 R)
• M3: 754,272 km (0.117 R)
• M4: 1,173,296 km (0.101 R)
• M5: 1,570,778 km (0.029 R)
• M6: 2,241,275 km (0.073 R)
• M7: 2,980,438 km (0.091 R)
• M8: 3,629,095 km (0.067 R)
• M9: 4,383,367 km (0.097 R)
• M10: 5,485,754 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 838.3

Radius: 14.3

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.65 AU - 2.03 AU

Year: 1612 Days

Day: 9 Hours

Environment

Temp: -183 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 66,604,351 km

• M1: 177,872 km (0.118 R)
• M2: 646,861 km (0.079 R)
• M3: 1,868,627 km (0.086 R)
• M4: 2,336,719 km (0.092 R)
• M5: 3,911,984 km (0.112 R)
• M6: 4,433,333 km (0.114 R)
• M7: 5,085,879 km (0.112 R)
• M8: 5,778,517 km (0.072 R)
• M9: 6,584,550 km (0.115 R)
• M10: 7,216,900 km (0.088 R)
• M11: 8,788,725 km (0.028 R)
• M12: 9,523,700 km (0.119 R)
• M13: 10,264,807 km (0.067 R)
• M14: 11,007,711 km (0.08 R)
• M15: 11,786,367 km (0.079 R)
• M16: 12,247,578 km (0.106 R)
• M17: 13,206,350 km (0.11 R)
• M18: 14,737,634 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 399

Radius: 9.1

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 3.23 AU - 5.05 AU

Year: 5439 Days

Day: 14.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 66,604,351 km

• M1: 117,883 km (0.116 R)
• M2: 415,732 km (0.111 R)
• M3: 721,511 km (0.078 R)
• M4: 1,120,638 km (0.059 R)
• M5: 1,502,561 km (0.091 R)
• M6: 1,787,695 km (0.112 R)
• M7: 2,360,206 km (0.101 R)
• M8: 2,715,351 km (0.093 R)
• M9: 3,087,401 km (0.049 R)
• M10: 3,956,415 km (0.118 R)
• M11: 4,507,982 km (0.088 R)
• M12: 6,504,515 km (0.107 R)
• M13: 8,612,649 km (0.107 R)
• M14: 9,419,729 km (0.1 R)
• M15: 11,318,126 km (0.097 R)
• M16: 11,726,379 km (0.1 R)
• M17: 12,717,165 km (0.099 R)
• M18: 13,458,423 km (0.101 R)
• M19: 14,228,104 km (0.118 R)
• M20: 16,597,585 km (0.063 R)
• M21: 17,065,676 km (0.064 R)
• M22: 17,663,320 km (0.12 R)
• M23: 19,218,240 km (0.088 R)
• M24: 21,065,923 km (0.107 R)
• M25: 21,753,625 km (0.111 R)
• M26: 22,813,077 km (0.083 R)
• M27: 23,392,021 km (0.108 R)
• M28: 25,650,500 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.2

Radius: 8.1

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 3.72 AU - 6.18 AU

Year: 7111 Days

Day: 14.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 66,604,351 km

• M1: 100,979 km (0.113 R)
• M2: 407,355 km (0.092 R)
• M3: 707,748 km (0.092 R)
• M4: 1,824,944 km (0.106 R)
• M5: 2,339,262 km (0.107 R)
• M6: 2,595,673 km (0.102 R)
• M7: 3,312,695 km (0.049 R)
• M8: 3,620,119 km (0.07 R)
• M9: 5,089,469 km (0.041 R)
• M10: 8,411,589 km (0.106 R)
• M11: 9,450,696 km (0.097 R)
• M12: 11,432,868 km (0.053 R)
• M13: 14,114,410 km (0.103 R)
• M14: 15,155,910 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845.4

Radius: 11.2

Gravity: 6.74 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 4.42 AU - 5.56 AU

Year: 7197 Days

Day: 9.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 66,604,351 km

• M1: 139,425 km (0.09 R)
• M2: 1,052,421 km (0.057 R)
• M3: 1,425,518 km (0.06 R)
• M4: 1,799,962 km (0.114 R)
• M5: 2,223,772 km (0.11 R)
• M6: 2,773,096 km (0.034 R)
• M7: 4,223,896 km (0.088 R)
• M8: 5,221,863 km (0.115 R)
• M9: 5,760,416 km (0.059 R)
• M10: 7,680,504 km (0.101 R)
• M11: 9,207,300 km (0.051 R)
• M12: 10,283,208 km (0.054 R)
• M13: 11,182,142 km (0.107 R)
• M14: 12,795,704 km (0.117 R)
• M15: 13,308,825 km (0.111 R)
• M16: 15,308,350 km (0.036 R)
• M17: 16,280,437 km (0.105 R)
• M18: 20,816,993 km (0.108 R)
• M19: 37,466,637 km (0.073 R)
• M20: 40,922,946 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 907.1

Radius: 5.8

Gravity: 26.96 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 6.39 AU - 7.73 AU

Year: 12112 Days

Day: 18.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 66,604,351 km

• M1: 72,106 km (0.1 R)
• M2: 261,946 km (0.11 R)
• M3: 450,290 km (0.115 R)
• M4: 682,615 km (0.092 R)
• M5: 1,051,075 km (0.075 R)
• M6: 1,886,429 km (0.1 R)
• M7: 2,103,944 km (0.085 R)
• M8: 2,767,411 km (0.065 R)
• M9: 4,159,270 km (0.086 R)
• M10: 4,403,713 km (0.08 R)
• M11: 4,788,628 km (0.082 R)
• M12: 7,584,163 km (0.113 R)
• M13: 7,949,780 km (0.059 R)
• M14: 8,666,953 km (0.09 R)
• M15: 9,374,551 km (0.085 R)
• M16: 11,547,609 km (0.054 R)
• M17: 14,035,422 km (0.076 R)
• M18: 14,447,414 km (0.094 R)
• M19: 14,656,403 km (0.073 R)
• M20: 15,805,464 km (0.114 R)
• M21: 17,878,442 km (0.081 R)
• M22: 18,362,690 km (0.105 R)
• M23: 20,126,150 km (0.116 R)
• M24: 22,742,616 km (0.119 R)
• M25: 23,598,615 km (0.076 R)
• M26: 23,888,686 km (0.108 R)
• M27: 27,557,274 km (0.07 R)
• M28: 39,273,779 km (0.075 R)
• M29: 42,898,835 km (0.107 R)
• M30: 50,805,681 km (0.089 R)
• M31: 51,613,509 km (0.063 R)
• M32: 53,753,956 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 604.7

Radius: 7.3

Gravity: 11.35 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 8.66 AU - 9.34 AU

Year: 17433 Days

Day: 15.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 66,604,351 km

• M1: 101,278 km (0.089 R)
• M2: 561,590 km (0.074 R)
• M3: 1,068,877 km (0.059 R)
• M4: 2,150,021 km (0.033 R)
• M5: 3,272,304 km (0.065 R)
• M6: 5,342,290 km (0.119 R)
• M7: 6,908,579 km (0.104 R)
• M8: 8,207,089 km (0.106 R)
• M9: 14,966,519 km (0.114 R)
• M10: 16,329,505 km (0.115 R)
• M11: 18,021,906 km (0.066 R)
• M12: 20,820,732 km (0.11 R)
• M13: 22,516,125 km (0.105 R)
• M14: 25,124,364 km (0.117 R)
• M15: 29,173,530 km (0.117 R)
• M16: 31,776,533 km (0.046 R)
• M17: 32,760,139 km (0.12 R)
• M18: 33,511,120 km (0.117 R)
• M19: 39,513,585 km (0.117 R)
• M20: 45,883,013 km (0.049 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 193 - 16,981 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit