🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.77

Radius: 0.9

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.66 AU - 0.68 AU

Year: 354 Days

Day: 27.8 Hours

Environment

Temp: -132 °C

Axial Tilt: 9.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253.5

Radius: 10.8

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.89 AU - 1.43 AU

Year: 807 Days

Day: 8.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 45,434,835 km

• M1: 134,339 km (0.049 R)
• M2: 510,278 km (0.104 R)
• M3: 915,988 km (0.07 R)
• M4: 1,293,124 km (0.095 R)
• M5: 1,861,895 km (0.06 R)
• M6: 2,246,062 km (0.12 R)
• M7: 2,895,766 km (0.104 R)
• M8: 3,415,768 km (0.084 R)
• M9: 3,836,138 km (0.055 R)
• M10: 4,377,383 km (0.119 R)
• M11: 4,750,780 km (0.1 R)
• M12: 5,459,873 km (0.103 R)
• M13: 5,946,815 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.4

Radius: 15

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.23 AU - 1.77 AU

Year: 1186 Days

Day: 12.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 45,434,835 km

• M1: 186,698 km (0.06 R)
• M2: 661,671 km (0.042 R)
• M3: 1,334,862 km (0.085 R)
• M4: 1,914,404 km (0.068 R)
• M5: 2,857,170 km (0.11 R)
• M6: 3,516,896 km (0.092 R)
• M7: 5,735,882 km (0.061 R)
• M8: 7,165,439 km (0.08 R)
• M9: 7,952,174 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 332.3

Radius: 8.8

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 1.54 AU - 1.68 AU

Year: 1319 Days

Day: 10.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 45,434,835 km

• M1: 109,506 km (0.1 R)
• M2: 394,190 km (0.083 R)
• M3: 1,036,564 km (0.056 R)
• M4: 1,315,713 km (0.055 R)
• M5: 1,714,990 km (0.101 R)
• M6: 2,162,736 km (0.118 R)
• M7: 2,510,851 km (0.086 R)
• M8: 2,833,533 km (0.085 R)
• M9: 3,307,160 km (0.088 R)
• M10: 3,592,443 km (0.074 R)
• M11: 4,051,559 km (0.099 R)
• M12: 4,446,647 km (0.039 R)
• M13: 5,352,612 km (0.027 R)
• M14: 5,890,416 km (0.081 R)
• M15: 6,290,142 km (0.118 R)
• M16: 6,663,089 km (0.1 R)
• M17: 6,958,246 km (0.081 R)
• M18: 7,771,609 km (0.078 R)
• M19: 8,047,917 km (0.07 R)
• M20: 8,487,884 km (0.093 R)
• M21: 9,331,466 km (0.063 R)
• M22: 9,759,316 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 80.6

Radius: 8

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.68 AU - 2.74 AU

Year: 2121 Days

Day: 7.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 45,434,835 km

• M1: 99,483 km (0.084 R)
• M2: 409,898 km (0.112 R)
• M3: 660,175 km (0.055 R)
• M4: 945,608 km (0.105 R)
• M5: 1,273,676 km (0.067 R)
• M6: 1,604,288 km (0.111 R)
• M7: 2,376,961 km (0.08 R)
• M8: 3,167,885 km (0.094 R)
• M9: 4,454,127 km (0.109 R)
• M10: 4,785,486 km (0.058 R)
• M11: 5,554,120 km (0.08 R)
• M12: 6,444,078 km (0.067 R)
• M13: 6,760,926 km (0.118 R)
• M14: 7,892,784 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.9

Radius: 9.4

Gravity: 9.97 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.65 AU - 3.35 AU

Year: 3355 Days

Day: 13.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 45,434,835 km

• M1: 116,986 km (0.088 R)
• M2: 409,898 km (0.059 R)
• M3: 820,694 km (0.068 R)
• M4: 2,094,819 km (0.086 R)
• M5: 2,414,958 km (0.114 R)
• M6: 2,887,389 km (0.103 R)
• M7: 3,867,554 km (0.075 R)
• M8: 4,954,233 km (0.065 R)
• M9: 7,092,136 km (0.029 R)
• M10: 8,098,331 km (0.036 R)
• M11: 8,490,278 km (0.115 R)
• M12: 10,226,959 km (0.059 R)
• M13: 11,332,039 km (0.089 R)
• M14: 11,777,691 km (0.108 R)
• M15: 12,751,423 km (0.082 R)
• M16: 15,501,182 km (0.045 R)
• M17: 17,305,033 km (0.076 R)
• M18: 17,776,865 km (0.091 R)
• M19: 18,562,104 km (0.112 R)
• M20: 19,943,491 km (0.047 R)
• M21: 20,266,622 km (0.106 R)
• M22: 20,593,493 km (0.108 R)
• M23: 21,123,519 km (0.079 R)
• M24: 22,698,485 km (0.099 R)
• M25: 23,550,445 km (0.119 R)
• M26: 24,793,753 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 394.3

Radius: 7

Gravity: 8.05 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 6.49 AU - 7.67 AU

Year: 12164 Days

Day: 24 Hours

Environment

Temp: -225 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 45,434,835 km

• M1: 89,609 km (0.116 R)
• M2: 413,040 km (0.061 R)
• M3: 753,973 km (0.075 R)
• M4: 979,567 km (0.068 R)
• M5: 1,323,792 km (0.052 R)
• M6: 1,615,208 km (0.082 R)
• M7: 1,901,090 km (0.116 R)
• M8: 2,555,730 km (0.104 R)
• M9: 2,881,853 km (0.068 R)
• M10: 3,189,726 km (0.073 R)
• M11: 4,110,201 km (0.088 R)
• M12: 4,358,684 km (0.073 R)
• M13: 5,357,100 km (0.08 R)
• M14: 5,892,660 km (0.107 R)
• M15: 8,618,483 km (0.103 R)
• M16: 8,934,882 km (0.102 R)
• M17: 9,543,297 km (0.098 R)
• M18: 9,784,598 km (0.08 R)
• M19: 10,481,724 km (0.087 R)
• M20: 11,318,425 km (0.068 R)
• M21: 11,588,898 km (0.111 R)
• M22: 11,808,358 km (0.104 R)
• M23: 12,086,461 km (0.086 R)
• M24: 16,044,820 km (0.098 R)
• M25: 16,872,396 km (0.041 R)
• M26: 19,294,834 km (0.068 R)
• M27: 20,468,878 km (0.093 R)
• M28: 22,530,337 km (0.086 R)
• M29: 22,872,467 km (0.111 R)
• M30: 24,365,753 km (0.066 R)
• M31: 25,090,405 km (0.032 R)
• M32: 25,922,768 km (0.06 R)
• M33: 38,113,947 km (0.114 R)
• M34: 44,892,825 km (0.104 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: 201 - 14,923 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit