🌌 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: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.4

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.56 AU - 0.76 AU

Year: 352 Days

Day: 28.2 Hours

Environment

Temp: -138 °C

Axial Tilt: 44.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.3

Radius: 10.1

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.97 AU - 1.05 AU

Year: 666 Days

Day: 7.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 64,696,218 km

• M1: 125,662 km (0.089 R)
• M2: 488,886 km (0.098 R)
• M3: 1,068,727 km (0.064 R)
• M4: 1,575,415 km (0.104 R)
• M5: 2,272,092 km (0.088 R)
• M6: 2,681,691 km (0.065 R)
• M7: 3,447,333 km (0.032 R)
• M8: 4,202,653 km (0.026 R)
• M9: 5,265,845 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 60.6

Radius: 9.8

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.99 AU - 1.39 AU

Year: 852 Days

Day: 14.3 Hours

Environment

Temp: -166 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 64,696,218 km

• M1: 121,922 km (0.078 R)
• M2: 1,001,558 km (0.1 R)
• M3: 2,230,504 km (0.104 R)
• M4: 2,773,096 km (0.115 R)
• M5: 4,134,137 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 565.4

Radius: 11.5

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.83 AU - 1.99 AU

Year: 1732 Days

Day: 5.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 64,696,218 km

• M1: 143,016 km (0.117 R)
• M2: 508,932 km (0.109 R)
• M3: 919,728 km (0.059 R)
• M4: 1,445,415 km (0.088 R)
• M5: 1,934,151 km (0.056 R)
• M6: 2,868,539 km (0.112 R)
• M7: 3,502,236 km (0.104 R)
• M8: 4,357,487 km (0.098 R)
• M9: 4,905,613 km (0.11 R)
• M10: 5,677,688 km (0.054 R)
• M11: 6,504,216 km (0.11 R)
• M12: 7,682,748 km (0.076 R)
• M13: 10,665,131 km (0.099 R)
• M14: 11,516,942 km (0.061 R)
• M15: 12,034,401 km (0.049 R)
• M16: 12,839,686 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 909.3

Radius: 9.1

Gravity: 10.98 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.91 AU - 2.61 AU

Year: 2229 Days

Day: 9.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 64,696,218 km

• M1: 114,143 km (0.103 R)
• M2: 447,597 km (0.115 R)
• M3: 743,950 km (0.092 R)
• M4: 1,049,279 km (0.042 R)
• M5: 1,654,552 km (0.102 R)
• M6: 2,336,868 km (0.049 R)
• M7: 3,947,738 km (0.103 R)
• M8: 4,613,150 km (0.104 R)
• M9: 5,207,352 km (0.117 R)
• M10: 5,851,820 km (0.119 R)
• M11: 6,193,352 km (0.1 R)
• M12: 7,268,961 km (0.098 R)
• M13: 7,726,281 km (0.057 R)
• M14: 8,300,288 km (0.111 R)
• M15: 9,005,493 km (0.063 R)
• M16: 9,569,177 km (0.046 R)
• M17: 10,044,300 km (0.086 R)
• M18: 11,240,934 km (0.061 R)
• M19: 11,646,643 km (0.111 R)
• M20: 12,401,215 km (0.073 R)
• M21: 15,350,238 km (0.094 R)
• M22: 15,698,801 km (0.088 R)
• M23: 16,515,306 km (0.03 R)
• M24: 17,629,660 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 408.3

Radius: 9

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 3.26 AU - 3.62 AU

Year: 4185 Days

Day: 5.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 64,696,218 km

• M1: 112,049 km (0.031 R)
• M2: 484,398 km (0.086 R)
• M3: 807,230 km (0.032 R)
• M4: 1,133,802 km (0.115 R)
• M5: 1,454,540 km (0.094 R)
• M6: 1,740,571 km (0.099 R)
• M7: 3,727,680 km (0.086 R)
• M8: 4,494,070 km (0.055 R)
• M9: 5,260,160 km (0.111 R)
• M10: 5,595,260 km (0.114 R)
• M11: 6,082,799 km (0.084 R)
• M12: 6,958,096 km (0.051 R)
• M13: 12,047,865 km (0.116 R)
• M14: 13,614,902 km (0.115 R)
• M15: 13,904,972 km (0.098 R)
• M16: 15,522,125 km (0.092 R)
• M17: 16,484,937 km (0.106 R)
• M18: 17,715,230 km (0.073 R)
• M19: 18,411,608 km (0.115 R)
• M20: 19,735,400 km (0.085 R)
• M21: 21,250,677 km (0.095 R)
• M22: 21,641,426 km (0.085 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 977.7

Radius: 3.3

Gravity: 89.78 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 5.93 AU - 8.81 AU

Year: 13125 Days

Day: 17.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 64,696,218 km

• M1: 41,887 km (0.119 R)
• M2: 242,199 km (0.063 R)
• M3: 631,303 km (0.074 R)
• M4: 1,003,503 km (0.101 R)
• M5: 1,667,418 km (0.11 R)
• M6: 1,930,112 km (0.104 R)
• M7: 2,042,759 km (0.051 R)
• M8: 2,860,910 km (0.081 R)
• M9: 3,505,377 km (0.115 R)
• M10: 3,616,828 km (0.056 R)
• M11: 4,148,050 km (0.075 R)
• M12: 4,464,599 km (0.074 R)
• M13: 7,978,354 km (0.068 R)
• M14: 8,269,321 km (0.027 R)
• M15: 8,567,320 km (0.072 R)
• M16: 8,872,351 km (0.115 R)
• M17: 8,975,573 km (0.104 R)
• M18: 11,395,468 km (0.107 R)
• M19: 12,332,549 km (0.079 R)
• M20: 18,544,750 km (0.096 R)
• M21: 25,089,807 km (0.077 R)
• M22: 26,775,476 km (0.087 R)
• M23: 28,873,586 km (0.099 R)
• M24: 29,558,295 km (0.069 R)
• M25: 31,078,658 km (0.107 R)
• M26: 34,528,834 km (0.12 R)
• M27: 35,041,656 km (0.105 R)
• M28: 37,817,594 km (0.085 R)
• M29: 40,452,162 km (0.09 R)
• M30: 44,252,097 km (0.076 R)
• M31: 47,174,641 km (0.105 R)
• M32: 47,805,944 km (0.087 R)
• M33: 48,442,782 km (0.113 R)
• M34: 49,733,363 km (0.079 R)
• M35: 49,896,275 km (0.1 R)
• M36: 52,383,190 km (0.076 R)
• M37: 52,551,787 km (0.07 R)
• M38: 60,522,212 km (0.065 R)
• M39: 63,156,930 km (0.109 R)
• M40: 64,116,002 km (0.117 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 186 - 19,611 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit