🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.03

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.6 AU - 0.7 AU

Year: 338 Days

Day: 42.3 Hours

Environment

Temp: -134 °C

Axial Tilt: 48.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 676.7

Radius: 8.5

Gravity: 9.37 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.55 AU - 0.87 AU

Year: 386 Days

Day: 13.3 Hours

Environment

Temp: -142 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 27,388,391 km

• M1: 107,710 km (0.028 R)
• M2: 385,514 km (0.062 R)
• M3: 661,073 km (0.11 R)
• M4: 948,002 km (0.119 R)
• M5: 1,278,613 km (0.072 R)
• M6: 1,810,134 km (0.12 R)
• M7: 2,362,450 km (0.074 R)
• M8: 2,743,176 km (0.067 R)
• M9: 3,264,974 km (0.105 R)
• M10: 3,567,909 km (0.066 R)
• M11: 3,902,410 km (0.089 R)
• M12: 4,284,782 km (0.107 R)
• M13: 4,577,246 km (0.103 R)

Asteroid Belt

Center: 1.39 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687.9

Radius: 12.9

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 2.04 AU - 2.08 AU

Year: 1909 Days

Day: 8.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 27,388,391 km

• M1: 161,715 km (0.09 R)
• M2: 616,194 km (0.035 R)
• M3: 1,161,179 km (0.11 R)
• M4: 1,663,977 km (0.113 R)
• M5: 2,165,280 km (0.11 R)
• M6: 3,363,110 km (0.088 R)
• M7: 4,526,981 km (0.116 R)
• M8: 5,179,826 km (0.083 R)
• M9: 5,587,181 km (0.109 R)
• M10: 6,913,516 km (0.063 R)
• M11: 7,752,162 km (0.048 R)
• M12: 8,563,730 km (0.074 R)
• M13: 10,111,021 km (0.108 R)
• M14: 10,534,383 km (0.033 R)
• M15: 13,710,196 km (0.039 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 475.7

Radius: 8.7

Gravity: 6.28 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 2.11 AU - 2.77 AU

Year: 2461 Days

Day: 8.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 27,388,391 km

• M1: 108,159 km (0.102 R)
• M2: 467,793 km (0.093 R)
• M3: 812,167 km (0.09 R)
• M4: 2,178,295 km (0.089 R)
• M5: 2,587,744 km (0.109 R)
• M6: 3,631,937 km (0.12 R)
• M7: 4,112,745 km (0.119 R)
• M8: 5,643,729 km (0.097 R)
• M9: 9,073,410 km (0.102 R)
• M10: 10,064,795 km (0.106 R)
• M11: 10,641,944 km (0.072 R)
• M12: 11,051,244 km (0.044 R)
• M13: 12,020,937 km (0.068 R)
• M14: 15,600,066 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636.2

Radius: 11.4

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 2.35 AU - 3.25 AU

Year: 3025 Days

Day: 8.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 27,388,391 km

• M1: 141,819 km (0.1 R)
• M2: 553,811 km (0.046 R)
• M3: 3,034,443 km (0.077 R)
• M4: 4,121,421 km (0.1 R)
• M5: 6,551,190 km (0.103 R)
• M6: 7,291,101 km (0.116 R)
• M7: 7,922,554 km (0.108 R)
• M8: 8,419,817 km (0.103 R)
• M9: 9,079,394 km (0.115 R)
• M10: 9,476,876 km (0.034 R)
• M11: 10,940,242 km (0.038 R)
• M12: 11,557,483 km (0.03 R)
• M13: 12,637,879 km (0.101 R)
• M14: 15,453,011 km (0.112 R)
• M15: 16,495,559 km (0.094 R)
• M16: 20,762,688 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 892.6

Radius: 10.7

Gravity: 7.8 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 3.75 AU - 3.91 AU

Year: 4840 Days

Day: 9.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 27,388,391 km

• M1: 134,189 km (0.088 R)
• M2: 470,635 km (0.108 R)
• M3: 853,755 km (0.105 R)
• M4: 1,216,081 km (0.081 R)
• M5: 1,924,577 km (0.112 R)
• M6: 2,463,578 km (0.057 R)
• M7: 3,220,693 km (0.088 R)
• M8: 4,472,079 km (0.081 R)
• M9: 4,810,320 km (0.11 R)
• M10: 5,899,093 km (0.118 R)
• M11: 7,250,111 km (0.113 R)
• M12: 11,299,127 km (0.08 R)
• M13: 12,029,314 km (0.049 R)
• M14: 12,842,528 km (0.071 R)
• M15: 13,209,492 km (0.111 R)
• M16: 13,800,553 km (0.081 R)
• M17: 14,521,765 km (0.099 R)
• M18: 14,920,293 km (0.072 R)
• M19: 15,680,101 km (0.096 R)
• M20: 16,588,459 km (0.069 R)
• M21: 19,114,270 km (0.03 R)
• M22: 21,443,209 km (0.11 R)
• M23: 21,811,818 km (0.108 R)
• M24: 22,486,206 km (0.113 R)
• M25: 27,514,788 km (0.038 R)
• M26: 28,924,748 km (0.117 R)
• M27: 30,660,981 km (0.027 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222.4

Radius: 10.1

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 4.3 AU - 5.08 AU

Year: 6558 Days

Day: 11.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,388,391 km

• M1: 125,662 km (0.072 R)
• M2: 990,787 km (0.114 R)
• M3: 1,378,844 km (0.039 R)
• M4: 2,629,332 km (0.116 R)
• M5: 3,407,690 km (0.087 R)
• M6: 3,957,013 km (0.085 R)
• M7: 4,707,695 km (0.106 R)
• M8: 6,282,811 km (0.107 R)
• M9: 7,667,489 km (0.076 R)
• M10: 11,029,552 km (0.116 R)
• M11: 17,863,482 km (0.077 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.3

Radius: 8.3

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 4.55 AU - 6.55 AU

Year: 8442 Days

Day: 11.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 27,388,391 km

• M1: 103,223 km (0.095 R)
• M2: 908,209 km (0.09 R)
• M3: 1,565,243 km (0.052 R)
• M4: 1,902,436 km (0.108 R)
• M5: 2,318,318 km (0.114 R)
• M6: 2,589,539 km (0.111 R)
• M7: 5,537,814 km (0.055 R)
• M8: 5,821,751 km (0.074 R)
• M9: 6,326,943 km (0.087 R)
• M10: 6,861,007 km (0.099 R)
• M11: 7,255,796 km (0.065 R)
• M12: 7,596,430 km (0.12 R)
• M13: 7,947,536 km (0.111 R)
• M14: 8,272,912 km (0.111 R)
• M15: 8,532,015 km (0.108 R)
• M16: 9,704,713 km (0.074 R)
• M17: 10,501,023 km (0.079 R)
• M18: 10,848,987 km (0.057 R)
• M19: 11,340,117 km (0.045 R)
• M20: 12,033,503 km (0.105 R)
• M21: 12,318,786 km (0.088 R)
• M22: 12,657,177 km (0.118 R)
• M23: 13,453,935 km (0.098 R)
• M24: 13,761,209 km (0.116 R)
• M25: 17,157,230 km (0.115 R)
• M26: 19,598,967 km (0.071 R)
• M27: 20,461,847 km (0.076 R)
• M28: 22,983,469 km (0.04 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 485 - 13,780 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit