🌌 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: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.49

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.55 AU - 0.55 AU

Year: 259 Days

Day: 31.3 Hours

Environment

Temp: -127 °C

Axial Tilt: 10.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 558

Radius: 9.3

Gravity: 6.45 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.94 AU - 0.94 AU

Year: 579 Days

Day: 5.2 Hours

Environment

Temp: -164 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 55,811,389 km

• M1: 121,174 km (0.114 R)
• M2: 299,345 km (0.089 R)
• M3: 530,624 km (0.107 R)
• M4: 712,535 km (0.12 R)
• M5: 1,233,883 km (0.059 R)
• M6: 1,945,221 km (0.108 R)
• M7: 2,122,943 km (0.115 R)
• M8: 2,331,782 km (0.114 R)
• M9: 2,558,872 km (0.052 R)
• M10: 3,635,976 km (0.099 R)
• M11: 3,811,455 km (0.101 R)
• M12: 4,164,954 km (0.09 R)
• M13: 4,405,956 km (0.028 R)
• M14: 4,730,883 km (0.117 R)
• M15: 4,988,042 km (0.092 R)
• M16: 5,511,186 km (0.106 R)
• M17: 6,011,142 km (0.096 R)
• M18: 6,533,238 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 46.1

Radius: 8

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.26 AU - 1.6 AU

Year: 1087 Days

Day: 12.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,811,389 km

• M1: 100,530 km (0.109 R)
• M2: 404,363 km (0.091 R)
• M3: 777,011 km (0.097 R)
• M4: 1,374,954 km (0.086 R)
• M5: 2,251,448 km (0.072 R)
• M6: 3,616,529 km (0.116 R)
• M7: 3,960,604 km (0.047 R)
• M8: 4,269,523 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 978.1

Radius: 10.7

Gravity: 8.54 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 3.03 AU - 4.33 AU

Year: 4489 Days

Day: 10 Hours

Environment

Temp: -216 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 55,811,389 km

• M1: 157,826 km (0.1 R)
• M2: 435,629 km (0.076 R)
• M3: 861,085 km (0.09 R)
• M4: 1,142,629 km (0.051 R)
• M5: 1,343,538 km (0.114 R)
• M6: 1,756,728 km (0.095 R)
• M7: 2,515,937 km (0.046 R)
• M8: 3,420,406 km (0.083 R)
• M9: 4,446,647 km (0.111 R)
• M10: 4,827,822 km (0.09 R)
• M11: 5,585,984 km (0.069 R)
• M12: 6,975,450 km (0.12 R)
• M13: 8,685,952 km (0.048 R)
• M14: 9,219,418 km (0.085 R)
• M15: 9,560,950 km (0.079 R)
• M16: 10,623,394 km (0.05 R)
• M17: 13,363,877 km (0.106 R)
• M18: 13,568,826 km (0.113 R)
• M19: 14,404,480 km (0.081 R)
• M20: 14,745,862 km (0.043 R)
• M21: 15,396,613 km (0.092 R)
• M22: 16,016,846 km (0.088 R)
• M23: 16,832,453 km (0.071 R)
• M24: 18,141,734 km (0.105 R)
• M25: 18,573,024 km (0.12 R)
• M26: 19,156,157 km (0.101 R)
• M27: 21,319,791 km (0.085 R)
• M28: 21,892,152 km (0.117 R)
• M29: 22,952,053 km (0.112 R)
• M30: 24,644,903 km (0.082 R)
• M31: 25,035,503 km (0.034 R)
• M32: 25,769,131 km (0.112 R)
• M33: 27,151,415 km (0.076 R)
• M34: 27,502,671 km (0.114 R)
• M35: 29,841,185 km (0.073 R)
• M36: 31,390,720 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 317.4

Radius: 11.1

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 3.58 AU - 3.78 AU

Year: 4489 Days

Day: 9.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 55,811,389 km

• M1: 218,413 km (0.102 R)
• M2: 433,834 km (0.104 R)
• M3: 719,117 km (0.12 R)
• M4: 1,090,868 km (0.077 R)
• M5: 1,930,112 km (0.117 R)
• M6: 2,650,425 km (0.117 R)
• M7: 3,064,064 km (0.111 R)
• M8: 3,612,340 km (0.104 R)
• M9: 3,823,422 km (0.111 R)
• M10: 4,474,472 km (0.114 R)
• M11: 5,802,004 km (0.058 R)
• M12: 6,555,528 km (0.091 R)
• M13: 7,035,289 km (0.087 R)
• M14: 7,838,629 km (0.089 R)
• M15: 8,523,937 km (0.105 R)
• M16: 8,987,840 km (0.09 R)
• M17: 10,011,538 km (0.069 R)
• M18: 11,715,159 km (0.045 R)
• M19: 13,622,382 km (0.1 R)
• M20: 14,630,522 km (0.062 R)
• M21: 14,986,565 km (0.064 R)
• M22: 17,329,268 km (0.105 R)
• M23: 17,600,040 km (0.104 R)
• M24: 18,266,798 km (0.058 R)
• M25: 18,785,005 km (0.067 R)
• M26: 20,551,157 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.8

Radius: 13.1

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 3.54 AU - 4.04 AU

Year: 4691 Days

Day: 5.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 55,811,389 km

• M1: 274,362 km (0.103 R)
• M2: 587,471 km (0.046 R)
• M3: 863,629 km (0.103 R)
• M4: 1,133,952 km (0.032 R)
• M5: 1,699,731 km (0.118 R)
• M6: 2,655,362 km (0.072 R)
• M7: 3,073,039 km (0.099 R)
• M8: 3,739,947 km (0.079 R)
• M9: 4,130,846 km (0.085 R)
• M10: 4,950,194 km (0.079 R)
• M11: 5,232,485 km (0.106 R)
• M12: 6,764,965 km (0.084 R)
• M13: 7,405,843 km (0.119 R)
• M14: 7,957,859 km (0.087 R)
• M15: 8,996,068 km (0.088 R)
• M16: 10,166,073 km (0.117 R)
• M17: 11,302,568 km (0.061 R)
• M18: 13,486,697 km (0.083 R)
• M19: 15,242,826 km (0.109 R)
• M20: 15,615,475 km (0.064 R)
• M21: 17,326,425 km (0.068 R)
• M22: 19,219,586 km (0.039 R)
• M23: 26,245,151 km (0.117 R)
• M24: 27,949,669 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 353.8

Radius: 7.3

Gravity: 6.64 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 6.81 AU - 7.79 AU

Year: 12541 Days

Day: 16.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 55,811,389 km

• M1: 90,806 km (0.031 R)
• M2: 502,050 km (0.087 R)
• M3: 1,108,520 km (0.103 R)
• M4: 1,320,650 km (0.073 R)
• M5: 1,685,070 km (0.071 R)
• M6: 2,021,815 km (0.105 R)
• M7: 3,015,893 km (0.089 R)
• M8: 3,466,183 km (0.109 R)
• M9: 4,107,658 km (0.115 R)
• M10: 4,747,189 km (0.102 R)
• M11: 5,715,536 km (0.114 R)
• M12: 6,535,781 km (0.082 R)
• M13: 7,196,406 km (0.085 R)
• M14: 7,375,474 km (0.093 R)
• M15: 8,536,354 km (0.12 R)
• M16: 10,763,417 km (0.117 R)
• M17: 12,299,039 km (0.084 R)
• M18: 15,627,442 km (0.097 R)
• M19: 17,974,633 km (0.084 R)
• M20: 18,429,410 km (0.075 R)
• M21: 20,006,920 km (0.049 R)
• M22: 20,426,542 km (0.108 R)
• M23: 23,164,033 km (0.103 R)
• M24: 23,810,296 km (0.051 R)
• M25: 28,157,910 km (0.12 R)
• M26: 30,321,693 km (0.027 R)
• M27: 32,718,251 km (0.064 R)
• M28: 34,575,658 km (0.115 R)
• M29: 35,523,660 km (0.068 R)
• M30: 35,842,603 km (0.057 R)
• M31: 36,404,043 km (0.104 R)
• M32: 42,955,832 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 387.2

Radius: 7.8

Gravity: 6.36 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 8.3 AU - 9.38 AU

Year: 16711 Days

Day: 17.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 55,811,389 km

• M1: 109,506 km (0.082 R)
• M2: 568,622 km (0.119 R)
• M3: 833,859 km (0.117 R)
• M4: 1,505,553 km (0.118 R)
• M5: 1,764,507 km (0.099 R)
• M6: 2,720,587 km (0.115 R)
• M7: 3,691,477 km (0.09 R)
• M8: 4,814,957 km (0.081 R)
• M9: 7,398,063 km (0.059 R)
• M10: 9,508,291 km (0.082 R)
• M11: 12,826,821 km (0.119 R)
• M12: 19,754,997 km (0.102 R)
• M13: 23,203,827 km (0.09 R)
• M14: 24,735,260 km (0.119 R)
• M15: 27,241,323 km (0.039 R)
• M16: 29,140,020 km (0.068 R)
• M17: 32,787,814 km (0.12 R)
• M18: 37,833,900 km (0.064 R)
• M19: 45,627,650 km (0.075 R)
• M20: 46,742,453 km (0.103 R)
• M21: 50,485,093 km (0.055 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 250 - 13,786 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit