🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727.1

Radius: 13.9

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.54 AU - 0.84 AU

Year: 382 Days

Day: 7.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 52,001,495 km

• M1: 173,234 km (0.041 R)
• M2: 659,427 km (0.048 R)
• M3: 1,096,702 km (0.108 R)
• M4: 1,608,476 km (0.063 R)
• M5: 2,088,536 km (0.061 R)
• M6: 2,782,969 km (0.112 R)
• M7: 3,450,624 km (0.08 R)
• M8: 4,039,292 km (0.097 R)
• M9: 4,496,463 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.5

Radius: 14.9

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.91 AU - 1.35 AU

Year: 801 Days

Day: 8.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,001,495 km

• M1: 185,352 km (0.091 R)
• M2: 876,344 km (0.092 R)
• M3: 1,360,742 km (0.114 R)
• M4: 2,066,994 km (0.057 R)
• M5: 2,667,928 km (0.071 R)
• M6: 3,436,861 km (0.051 R)
• M7: 4,137,428 km (0.11 R)
• M8: 5,068,376 km (0.067 R)
• M9: 6,353,422 km (0.118 R)
• M10: 6,827,198 km (0.101 R)
• M11: 7,435,912 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174.3

Radius: 10.9

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.23 AU - 1.37 AU

Year: 988 Days

Day: 8.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,001,495 km

• M1: 135,536 km (0.048 R)
• M2: 539,450 km (0.077 R)
• M3: 911,350 km (0.11 R)
• M4: 1,313,021 km (0.093 R)
• M5: 2,134,612 km (0.083 R)
• M6: 3,175,963 km (0.118 R)
• M7: 3,564,618 km (0.088 R)
• M8: 4,236,163 km (0.06 R)
• M9: 5,315,661 km (0.112 R)
• M10: 5,956,090 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 167.7

Radius: 10.6

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.26 AU - 1.54 AU

Year: 1105 Days

Day: 12.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 52,001,495 km

• M1: 132,993 km (0.098 R)
• M2: 497,563 km (0.093 R)
• M3: 1,157,140 km (0.119 R)
• M4: 1,601,744 km (0.087 R)
• M5: 1,948,811 km (0.107 R)
• M6: 2,366,040 km (0.094 R)
• M7: 2,712,359 km (0.117 R)
• M8: 3,357,724 km (0.062 R)
• M9: 3,690,729 km (0.086 R)
• M10: 4,364,219 km (0.075 R)
• M11: 4,953,933 km (0.077 R)
• M12: 6,179,140 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 459

Radius: 8.4

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.62 AU - 1.82 AU

Year: 1504 Days

Day: 10.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 136.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,001,495 km

• M1: 105,616 km (0.109 R)
• M2: 391,198 km (0.053 R)
• M3: 796,609 km (0.057 R)
• M4: 2,008,052 km (0.074 R)
• M5: 3,363,708 km (0.097 R)
• M6: 3,737,104 km (0.101 R)
• M7: 4,069,212 km (0.077 R)
• M8: 6,353,870 km (0.08 R)
• M9: 6,635,713 km (0.09 R)
• M10: 7,099,167 km (0.099 R)
• M11: 7,402,851 km (0.059 R)
• M12: 7,715,211 km (0.047 R)
• M13: 9,502,307 km (0.111 R)
• M14: 10,606,190 km (0.094 R)
• M15: 10,970,161 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82.8

Radius: 9.3

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 1.51 AU - 2.01 AU

Year: 1557 Days

Day: 14.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 52,001,495 km

• M1: 115,789 km (0.09 R)
• M2: 767,736 km (0.099 R)
• M3: 1,108,371 km (0.095 R)
• M4: 1,397,693 km (0.109 R)
• M5: 1,967,661 km (0.093 R)
• M6: 3,620,418 km (0.054 R)
• M7: 4,450,088 km (0.041 R)
• M8: 6,063,351 km (0.065 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89.9

Radius: 10.3

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 3.52 AU - 4.66 AU

Year: 5516 Days

Day: 11.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,001,495 km

• M1: 129,851 km (0.116 R)
• M2: 504,444 km (0.066 R)
• M3: 1,550,881 km (0.118 R)
• M4: 2,862,106 km (0.05 R)
• M5: 4,469,685 km (0.039 R)
• M6: 4,908,456 km (0.047 R)
• M7: 6,144,882 km (0.028 R)
• M8: 6,903,792 km (0.085 R)
• M9: 7,348,547 km (0.093 R)
• M10: 9,591,617 km (0.111 R)
• M11: 11,433,616 km (0.027 R)
• M12: 13,287,582 km (0.119 R)
• M13: 13,845,881 km (0.084 R)
• M14: 14,780,868 km (0.084 R)
• M15: 15,333,782 km (0.077 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 484.9

Radius: 9.2

Gravity: 5.73 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 4.46 AU - 4.66 AU

Year: 6493 Days

Day: 14.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 52,001,495 km

• M1: 115,041 km (0.069 R)
• M2: 477,965 km (0.095 R)
• M3: 1,494,782 km (0.074 R)
• M4: 1,824,795 km (0.076 R)
• M5: 2,111,574 km (0.097 R)
• M6: 3,081,567 km (0.102 R)
• M7: 3,578,680 km (0.12 R)
• M8: 4,128,303 km (0.043 R)
• M9: 4,499,754 km (0.096 R)
• M10: 4,947,650 km (0.113 R)
• M11: 5,660,035 km (0.088 R)
• M12: 7,182,792 km (0.089 R)
• M13: 9,543,596 km (0.097 R)
• M14: 12,227,831 km (0.068 R)
• M15: 12,685,151 km (0.117 R)
• M16: 14,800,465 km (0.095 R)
• M17: 15,261,676 km (0.048 R)
• M18: 17,330,165 km (0.116 R)
• M19: 21,792,371 km (0.108 R)
• M20: 22,844,792 km (0.09 R)
• M21: 25,459,014 km (0.076 R)
• M22: 25,954,782 km (0.065 R)
• M23: 28,798,039 km (0.085 R)
• M24: 30,711,695 km (0.099 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 690.4

Radius: 3.6

Gravity: 53.27 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 5.32 AU - 7.84 AU

Year: 11256 Days

Day: 19.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 52,001,495 km

• M1: 44,730 km (0.032 R)
• M2: 300,093 km (0.112 R)
• M3: 575,653 km (0.083 R)
• M4: 781,200 km (0.114 R)
• M5: 896,241 km (0.092 R)
• M6: 2,234,394 km (0.116 R)
• M7: 4,033,308 km (0.111 R)
• M8: 4,685,256 km (0.096 R)
• M9: 5,935,595 km (0.083 R)
• M10: 7,520,135 km (0.054 R)
• M11: 10,025,601 km (0.074 R)
• M12: 11,099,863 km (0.07 R)
• M13: 22,852,571 km (0.08 R)
• M14: 23,214,598 km (0.042 R)
• M15: 24,043,071 km (0.104 R)
• M16: 29,968,193 km (0.106 R)
• M17: 31,616,014 km (0.08 R)
• M18: 37,168,788 km (0.088 R)
• M19: 46,880,083 km (0.068 R)
• M20: 47,171,500 km (0.074 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 252 - 12,409 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit