🌌 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 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 168.5

Radius: 12.8

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.54 AU - 0.74 AU

Year: 360 Days

Day: 5.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 18,592,280 km

• M1: 160,967 km (0.118 R)
• M2: 572,361 km (0.098 R)
• M3: 991,086 km (0.039 R)
• M4: 1,411,157 km (0.094 R)
• M5: 2,325,499 km (0.081 R)
• M6: 2,871,980 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.2

Radius: 9.8

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.61 AU - 0.81 AU

Year: 421 Days

Day: 9.4 Hours

Environment

Temp: -169 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 18,592,280 km

• M1: 121,922 km (0.048 R)
• M2: 438,471 km (0.109 R)
• M3: 758,162 km (0.063 R)
• M4: 1,454,839 km (0.118 R)
• M5: 1,944,623 km (0.079 R)
• M6: 2,814,385 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17.2

Radius: 9.2

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.8 AU - 0.84 AU

Year: 522 Days

Day: 12.4 Hours

Environment

Temp: -167 °C

Axial Tilt: 162.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 18,592,280 km

• M1: 116,686 km (0.09 R)
• M2: 440,267 km (0.119 R)
• M3: 940,821 km (0.119 R)
• M4: 1,288,486 km (0.113 R)
• M5: 1,575,415 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 556.5

Radius: 14.3

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.63 AU - 1.05 AU

Year: 541 Days

Day: 6.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 18,592,280 km

• M1: 178,171 km (0.117 R)
• M2: 718,668 km (0.106 R)
• M3: 1,288,038 km (0.051 R)
• M4: 1,831,676 km (0.12 R)
• M5: 2,461,334 km (0.035 R)
• M6: 2,963,085 km (0.057 R)
• M7: 3,533,203 km (0.085 R)
• M8: 4,912,345 km (0.036 R)
• M9: 6,086,988 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 971.4

Radius: 9.7

Gravity: 10.32 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.85 AU - 1.19 AU

Year: 724 Days

Day: 9.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 18,592,280 km

• M1: 123,119 km (0.093 R)
• M2: 434,731 km (0.119 R)
• M3: 839,693 km (0.1 R)
• M4: 1,632,113 km (0.099 R)
• M5: 2,017,327 km (0.095 R)
• M6: 2,775,639 km (0.061 R)
• M7: 4,158,671 km (0.114 R)
• M8: 4,588,017 km (0.1 R)
• M9: 4,902,322 km (0.065 R)
• M10: 5,344,085 km (0.073 R)
• M11: 5,752,188 km (0.05 R)
• M12: 6,286,252 km (0.103 R)
• M13: 7,265,071 km (0.12 R)
• M14: 7,864,809 km (0.113 R)
• M15: 9,081,339 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.5

Radius: 11.4

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.92 AU - 1.36 AU

Year: 856 Days

Day: 6.3 Hours

Environment

Temp: -179 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 18,592,280 km

• M1: 142,417 km (0.074 R)
• M2: 500,255 km (0.099 R)
• M3: 1,067,680 km (0.052 R)
• M4: 1,535,921 km (0.098 R)
• M5: 1,895,555 km (0.08 R)
• M6: 2,790,000 km (0.078 R)
• M7: 3,253,454 km (0.087 R)
• M8: 3,871,294 km (0.117 R)
• M9: 6,603,549 km (0.086 R)
• M10: 7,110,536 km (0.104 R)
• M11: 7,714,912 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553.4

Radius: 8

Gravity: 8.65 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.92 AU - 1.4 AU

Year: 878 Days

Day: 14.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 18,592,280 km

• M1: 100,380 km (0.107 R)
• M2: 470,186 km (0.111 R)
• M3: 1,106,725 km (0.089 R)
• M4: 1,723,068 km (0.087 R)
• M5: 2,021,067 km (0.114 R)
• M6: 2,890,231 km (0.085 R)
• M7: 3,505,976 km (0.089 R)
• M8: 3,837,784 km (0.107 R)
• M9: 4,174,529 km (0.108 R)
• M10: 4,464,748 km (0.115 R)
• M11: 5,268,239 km (0.073 R)
• M12: 6,627,934 km (0.106 R)
• M13: 7,319,674 km (0.093 R)
• M14: 7,887,548 km (0.116 R)
• M15: 8,383,016 km (0.065 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 786.5

Radius: 12

Gravity: 5.46 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 3.91 AU - 5.11 AU

Year: 6732 Days

Day: 6 Hours

Environment

Temp: -231 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 18,592,280 km

• M1: 149,897 km (0.053 R)
• M2: 727,943 km (0.076 R)
• M3: 1,941,182 km (0.095 R)
• M4: 2,323,853 km (0.084 R)
• M5: 2,738,539 km (0.106 R)
• M6: 3,767,024 km (0.066 R)
• M7: 4,864,175 km (0.071 R)
• M8: 6,644,240 km (0.079 R)
• M9: 8,823,881 km (0.11 R)
• M10: 10,170,112 km (0.081 R)
• M11: 11,040,921 km (0.06 R)
• M12: 14,604,043 km (0.059 R)
• M13: 16,481,796 km (0.105 R)
• M14: 19,084,948 km (0.097 R)
• M15: 21,480,459 km (0.119 R)
• M16: 22,589,129 km (0.119 R)
• M17: 22,994,090 km (0.036 R)
• M18: 29,861,081 km (0.073 R)
• M19: 35,201,426 km (0.101 R)
• M20: 35,855,917 km (0.115 R)
• M21: 36,518,486 km (0.114 R)
• M22: 37,414,727 km (0.115 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 399.7

Radius: 12.5

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 3.68 AU - 5.82 AU

Year: 7277 Days

Day: 11.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 18,592,280 km

• M1: 166,502 km (0.071 R)
• M2: 933,940 km (0.04 R)
• M3: 1,622,838 km (0.036 R)
• M4: 2,313,681 km (0.048 R)
• M5: 2,940,197 km (0.058 R)
• M6: 3,440,003 km (0.082 R)
• M7: 3,880,270 km (0.11 R)
• M8: 4,875,544 km (0.106 R)
• M9: 5,879,944 km (0.077 R)
• M10: 7,878,721 km (0.076 R)
• M11: 11,746,874 km (0.076 R)
• M12: 12,394,333 km (0.083 R)
• M13: 14,145,376 km (0.104 R)
• M14: 14,878,555 km (0.028 R)
• M15: 28,509,913 km (0.115 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 24.1

Radius: 5.8

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 6.62 AU - 7.28 AU

Year: 12879 Days

Day: 19.9 Hours

Environment

Temp: -238 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 18,592,280 km

• M1: 94,845 km (0.084 R)
• M2: 294,558 km (0.073 R)
• M3: 519,105 km (0.091 R)
• M4: 852,708 km (0.087 R)
• M5: 1,607,130 km (0.065 R)
• M6: 8,202,002 km (0.068 R)
• M7: 8,428,793 km (0.062 R)
• M8: 12,058,636 km (0.081 R)
• M9: 18,536,822 km (0.107 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 305 - 16,857 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit