🌌 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: 0.64

Radius: 0.84

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.6 AU - 0.7 AU

Year: 338 Days

Day: 38.4 Hours

Environment

Temp: -123 °C

Axial Tilt: 42.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 41,895,590 km

• M1: 22,290 km (0.08 R)
• M2: 380,128 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.1

Radius: 12.1

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.67 AU - 0.75 AU

Year: 386 Days

Day: 13 Hours

Environment

Temp: -146 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 41,895,590 km

• M1: 150,495 km (0.063 R)
• M2: 529,876 km (0.099 R)
• M3: 1,018,163 km (0.041 R)
• M4: 1,604,587 km (0.06 R)
• M5: 2,939,299 km (0.075 R)
• M6: 3,446,286 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.6

Radius: 13.6

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.88 AU - 1.2 AU

Year: 685 Days

Day: 5.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 41,895,590 km

• M1: 223,050 km (0.09 R)
• M2: 753,076 km (0.046 R)
• M3: 1,184,366 km (0.095 R)
• M4: 1,796,820 km (0.113 R)
• M5: 3,196,757 km (0.105 R)
• M6: 3,730,821 km (0.104 R)
• M7: 5,104,429 km (0.112 R)
• M8: 5,897,298 km (0.045 R)
• M9: 6,428,221 km (0.118 R)
• M10: 8,141,415 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290.4

Radius: 13.2

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.22 AU - 1.64 AU

Year: 1104 Days

Day: 11.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 41,895,590 km

• M1: 164,558 km (0.081 R)
• M2: 638,633 km (0.116 R)
• M3: 1,422,077 km (0.03 R)
• M4: 2,062,955 km (0.115 R)
• M5: 2,585,500 km (0.109 R)
• M6: 3,311,199 km (0.067 R)
• M7: 3,815,194 km (0.113 R)
• M8: 4,230,329 km (0.054 R)
• M9: 4,775,463 km (0.111 R)
• M10: 7,084,806 km (0.106 R)
• M11: 7,509,364 km (0.078 R)
• M12: 8,117,928 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 670.3

Radius: 9.6

Gravity: 7.27 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 1.38 AU - 1.56 AU

Year: 1151 Days

Day: 14.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 41,895,590 km

• M1: 119,977 km (0.086 R)
• M2: 457,769 km (0.105 R)
• M3: 769,980 km (0.115 R)
• M4: 1,168,659 km (0.105 R)
• M5: 1,528,591 km (0.073 R)
• M6: 2,360,954 km (0.068 R)
• M7: 2,878,263 km (0.039 R)
• M8: 3,220,992 km (0.08 R)
• M9: 3,923,803 km (0.1 R)
• M10: 4,225,392 km (0.104 R)
• M11: 4,578,592 km (0.097 R)
• M12: 4,913,392 km (0.077 R)
• M13: 5,264,499 km (0.107 R)
• M14: 6,442,731 km (0.104 R)
• M15: 7,155,266 km (0.11 R)
• M16: 7,684,693 km (0.036 R)
• M17: 8,240,000 km (0.107 R)
• M18: 9,253,825 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 16.5

Radius: 10.8

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 1.32 AU - 2.12 AU

Year: 1456 Days

Day: 11.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 41,895,590 km

• M1: 135,087 km (0.078 R)
• M2: 508,483 km (0.108 R)
• M3: 961,316 km (0.064 R)
• M4: 1,694,345 km (0.077 R)
• M5: 2,294,831 km (0.106 R)
• M6: 3,314,790 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 681.7

Radius: 13

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 4.17 AU - 6.75 AU

Year: 8238 Days

Day: 11.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 41,895,590 km

• M1: 165,306 km (0.1 R)
• M2: 824,135 km (0.094 R)
• M3: 1,315,564 km (0.079 R)
• M4: 1,912,010 km (0.078 R)
• M5: 2,552,289 km (0.083 R)
• M6: 3,400,360 km (0.076 R)
• M7: 4,212,676 km (0.07 R)
• M8: 5,366,824 km (0.045 R)
• M9: 5,917,194 km (0.089 R)
• M10: 6,721,582 km (0.027 R)
• M11: 7,479,295 km (0.08 R)
• M12: 8,809,220 km (0.108 R)
• M13: 10,049,387 km (0.082 R)
• M14: 11,772,754 km (0.032 R)
• M15: 12,481,250 km (0.109 R)
• M16: 14,407,771 km (0.052 R)
• M17: 15,994,107 km (0.07 R)
• M18: 23,259,627 km (0.097 R)
• M19: 24,550,507 km (0.054 R)
• M20: 26,161,975 km (0.11 R)
• M21: 27,652,718 km (0.104 R)
• M22: 28,807,314 km (0.071 R)
• M23: 32,995,606 km (0.063 R)
• M24: 35,965,572 km (0.102 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652.3

Radius: 12.4

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 4.55 AU - 6.49 AU

Year: 8374 Days

Day: 10 Hours

Environment

Temp: -222 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 41,895,590 km

• M1: 154,235 km (0.109 R)
• M2: 753,225 km (0.083 R)
• M3: 1,214,884 km (0.1 R)
• M4: 1,627,176 km (0.109 R)
• M5: 2,134,313 km (0.095 R)
• M6: 2,707,273 km (0.025 R)
• M7: 3,246,723 km (0.083 R)
• M8: 4,164,356 km (0.066 R)
• M9: 4,599,536 km (0.093 R)
• M10: 5,186,259 km (0.051 R)
• M11: 5,723,914 km (0.097 R)
• M12: 6,228,956 km (0.11 R)
• M13: 7,682,748 km (0.095 R)
• M14: 8,902,569 km (0.116 R)
• M15: 10,296,073 km (0.102 R)
• M16: 10,691,161 km (0.096 R)
• M17: 11,776,943 km (0.055 R)
• M18: 13,221,161 km (0.096 R)
• M19: 15,030,846 km (0.09 R)
• M20: 19,210,461 km (0.111 R)
• M21: 22,584,641 km (0.104 R)
• M22: 23,678,052 km (0.1 R)
• M23: 33,513,065 km (0.079 R)
• M24: 35,829,288 km (0.049 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 368 - 10,617 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit