🌌 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 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 362.9

Radius: 13.4

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.5 AU - 0.6 AU

Year: 277 Days

Day: 6.8 Hours

Environment

Temp: -145 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 42,386,263 km

• M1: 166,951 km (0.088 R)
• M2: 655,837 km (0.081 R)
• M3: 1,129,913 km (0.096 R)
• M4: 1,752,689 km (0.073 R)
• M5: 3,029,058 km (0.06 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 450.1

Radius: 13.3

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.54 AU - 0.56 AU

Year: 277 Days

Day: 12.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 98 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,386,263 km

• M1: 166,353 km (0.082 R)
• M2: 610,359 km (0.093 R)
• M3: 1,064,239 km (0.111 R)
• M4: 1,791,435 km (0.031 R)
• M5: 2,444,429 km (0.054 R)
• M6: 2,940,496 km (0.087 R)
• M7: 3,565,964 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 999.9

Radius: 9.1

Gravity: 12.07 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.94 AU - 1.18 AU

Year: 740 Days

Day: 5.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 42,386,263 km

• M1: 113,246 km (0.076 R)
• M2: 488,736 km (0.061 R)
• M3: 800,049 km (0.059 R)
• M4: 1,128,417 km (0.116 R)
• M5: 1,839,904 km (0.079 R)
• M6: 2,316,523 km (0.091 R)
• M7: 3,131,233 km (0.093 R)
• M8: 3,874,435 km (0.108 R)
• M9: 5,316,858 km (0.098 R)
• M10: 5,647,768 km (0.095 R)
• M11: 5,971,648 km (0.111 R)
• M12: 6,590,385 km (0.098 R)
• M13: 7,087,947 km (0.107 R)
• M14: 8,107,157 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 156.5

Radius: 9.2

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.26 AU - 1.82 AU

Year: 1296 Days

Day: 8.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 42,386,263 km

• M1: 114,442 km (0.065 R)
• M2: 423,212 km (0.114 R)
• M3: 792,420 km (0.034 R)
• M4: 1,118,094 km (0.113 R)
• M5: 1,556,416 km (0.073 R)
• M6: 1,927,419 km (0.086 R)
• M7: 2,417,801 km (0.051 R)
• M8: 3,269,910 km (0.118 R)
• M9: 3,675,919 km (0.09 R)
• M10: 5,150,954 km (0.111 R)
• M11: 6,632,870 km (0.053 R)
• M12: 7,329,099 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 497.5

Radius: 13.7

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.71 AU - 1.99 AU

Year: 1707 Days

Day: 12.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 42,386,263 km

• M1: 175,927 km (0.075 R)
• M2: 607,218 km (0.115 R)
• M3: 1,065,735 km (0.1 R)
• M4: 1,855,762 km (0.095 R)
• M5: 2,443,980 km (0.112 R)
• M6: 3,068,252 km (0.103 R)
• M7: 3,649,290 km (0.085 R)
• M8: 4,933,738 km (0.097 R)
• M9: 6,006,055 km (0.047 R)
• M10: 7,099,167 km (0.119 R)
• M11: 8,122,117 km (0.092 R)
• M12: 8,552,211 km (0.052 R)
• M13: 9,615,254 km (0.102 R)
• M14: 10,294,129 km (0.1 R)
• M15: 10,798,573 km (0.083 R)
• M16: 11,857,127 km (0.106 R)
• M17: 12,829,513 km (0.103 R)
• M18: 13,256,615 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.5

Radius: 14.8

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 2.7 AU - 3.12 AU

Year: 3367 Days

Day: 7.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 42,386,263 km

• M1: 197,918 km (0.119 R)
• M2: 775,964 km (0.089 R)
• M3: 1,327,980 km (0.06 R)
• M4: 1,978,731 km (0.1 R)
• M5: 2,754,994 km (0.056 R)
• M6: 3,460,947 km (0.116 R)
• M7: 4,323,229 km (0.052 R)
• M8: 4,836,798 km (0.085 R)
• M9: 5,391,208 km (0.048 R)
• M10: 5,893,408 km (0.075 R)
• M11: 7,179,202 km (0.12 R)
• M12: 9,080,441 km (0.084 R)
• M13: 11,007,411 km (0.1 R)
• M14: 12,632,194 km (0.097 R)
• M15: 14,154,053 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 838.6

Radius: 14

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 2.29 AU - 3.53 AU

Year: 3367 Days

Day: 7.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 42,386,263 km

• M1: 175,628 km (0.07 R)
• M2: 1,452,895 km (0.111 R)
• M3: 3,272,902 km (0.058 R)
• M4: 4,274,011 km (0.091 R)
• M5: 6,161,488 km (0.116 R)
• M6: 8,339,932 km (0.063 R)
• M7: 9,410,304 km (0.081 R)
• M8: 14,366,482 km (0.113 R)
• M9: 15,576,280 km (0.064 R)
• M10: 16,682,706 km (0.091 R)
• M11: 18,744,015 km (0.063 R)
• M12: 19,551,245 km (0.115 R)
• M13: 20,123,606 km (0.103 R)
• M14: 22,044,443 km (0.087 R)
• M15: 22,734,239 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 227.3

Radius: 6.5

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 7.52 AU - 7.84 AU

Year: 14436 Days

Day: 21.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 42,386,263 km

• M1: 81,980 km (0.098 R)
• M2: 361,877 km (0.112 R)
• M3: 824,434 km (0.099 R)
• M4: 1,390,512 km (0.061 R)
• M5: 1,773,184 km (0.07 R)
• M6: 2,223,772 km (0.112 R)
• M7: 2,912,072 km (0.119 R)
• M8: 3,884,758 km (0.054 R)
• M9: 4,334,449 km (0.115 R)
• M10: 4,847,719 km (0.081 R)
• M11: 5,274,372 km (0.063 R)
• M12: 5,893,109 km (0.078 R)
• M13: 6,379,152 km (0.099 R)
• M14: 7,751,713 km (0.082 R)
• M15: 9,310,523 km (0.092 R)
• M16: 12,023,630 km (0.086 R)
• M17: 13,978,575 km (0.109 R)
• M18: 15,094,874 km (0.088 R)
• M19: 19,319,518 km (0.108 R)
• M20: 25,970,041 km (0.11 R)
• M21: 28,812,699 km (0.037 R)
• M22: 29,107,856 km (0.106 R)
• M23: 30,005,443 km (0.116 R)
• M24: 31,751,250 km (0.104 R)
• M25: 33,672,237 km (0.098 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 344 - 17,567 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit