🌌 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 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 119.6

Radius: 14

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.57 AU - 0.75 AU

Year: 358 Days

Day: 12.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 20,189,942 km

• M1: 174,880 km (0.064 R)
• M2: 641,476 km (0.066 R)
• M3: 1,198,728 km (0.062 R)
• M4: 2,630,529 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 162.2

Radius: 9.3

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.54 AU - 0.82 AU

Year: 374 Days

Day: 11.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 20,189,942 km

• M1: 115,639 km (0.074 R)
• M2: 506,239 km (0.105 R)
• M3: 824,284 km (0.062 R)
• M4: 1,265,897 km (0.063 R)
• M5: 1,735,934 km (0.068 R)
• M6: 2,341,506 km (0.096 R)
• M7: 2,640,402 km (0.116 R)
• M8: 3,027,562 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.7

Radius: 9.5

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.62 AU - 0.78 AU

Year: 391 Days

Day: 8.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 20,189,942 km

• M1: 118,182 km (0.091 R)
• M2: 544,835 km (0.1 R)
• M3: 1,099,694 km (0.089 R)
• M4: 1,564,195 km (0.071 R)
• M5: 2,070,285 km (0.102 R)
• M6: 2,733,452 km (0.064 R)
• M7: 3,138,563 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 313.4

Radius: 11.4

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.32 AU - 1.82 AU

Year: 1312 Days

Day: 7.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 20,189,942 km

• M1: 145,260 km (0.049 R)
• M2: 613,800 km (0.076 R)
• M3: 1,062,145 km (0.118 R)
• M4: 1,572,274 km (0.104 R)
• M5: 2,581,311 km (0.043 R)
• M6: 3,082,464 km (0.079 R)
• M7: 3,475,607 km (0.113 R)
• M8: 3,887,001 km (0.062 R)
• M9: 4,969,492 km (0.119 R)
• M10: 5,630,415 km (0.074 R)
• M11: 6,349,083 km (0.025 R)
• M12: 7,058,776 km (0.078 R)
• M13: 7,480,642 km (0.117 R)
• M14: 8,401,117 km (0.082 R)
• M15: 8,821,936 km (0.118 R)
• M16: 9,339,844 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 622.3

Radius: 8.4

Gravity: 8.82 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.6 AU - 3.14 AU

Year: 3242 Days

Day: 12.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 20,189,942 km

• M1: 104,868 km (0.094 R)
• M2: 461,809 km (0.084 R)
• M3: 799,002 km (0.096 R)
• M4: 1,596,359 km (0.064 R)
• M5: 2,310,988 km (0.032 R)
• M6: 3,692,823 km (0.073 R)
• M7: 4,492,424 km (0.119 R)
• M8: 7,330,146 km (0.077 R)
• M9: 8,657,079 km (0.105 R)
• M10: 9,084,630 km (0.119 R)
• M11: 12,572,504 km (0.111 R)
• M12: 12,936,476 km (0.071 R)
• M13: 13,877,297 km (0.075 R)
• M14: 15,632,529 km (0.104 R)
• M15: 16,000,539 km (0.109 R)
• M16: 16,428,240 km (0.12 R)
• M17: 17,362,329 km (0.118 R)
• M18: 17,985,404 km (0.063 R)
• M19: 18,918,147 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 16

Radius: 9.2

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 2.57 AU - 3.23 AU

Year: 3293 Days

Day: 6.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 20,189,942 km

• M1: 131,646 km (0.044 R)
• M2: 624,870 km (0.063 R)
• M3: 961,017 km (0.09 R)
• M4: 1,367,025 km (0.119 R)
• M5: 1,704,369 km (0.075 R)
• M6: 3,056,733 km (0.025 R)
• M7: 4,459,513 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688

Radius: 13.9

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 4.11 AU - 5.07 AU

Year: 6558 Days

Day: 8.7 Hours

Environment

Temp: -231 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 20,189,942 km

• M1: 173,234 km (0.115 R)
• M2: 729,589 km (0.112 R)
• M3: 1,267,992 km (0.097 R)
• M4: 2,603,901 km (0.114 R)
• M5: 3,059,875 km (0.108 R)
• M6: 3,524,975 km (0.104 R)
• M7: 4,086,415 km (0.066 R)
• M8: 5,331,369 km (0.116 R)
• M9: 5,819,507 km (0.085 R)
• M10: 8,438,517 km (0.063 R)
• M11: 10,921,393 km (0.035 R)
• M12: 11,461,291 km (0.112 R)
• M13: 13,243,301 km (0.072 R)
• M14: 15,753,553 km (0.117 R)
• M15: 18,774,234 km (0.108 R)
• M16: 21,015,658 km (0.069 R)
• M17: 22,396,297 km (0.103 R)
• M18: 24,164,694 km (0.08 R)
• M19: 34,111,905 km (0.119 R)
• M20: 35,161,484 km (0.088 R)
• M21: 36,232,455 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 65.2

Radius: 12.5

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 5.04 AU - 6.18 AU

Year: 8861 Days

Day: 7.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 20,189,942 km

• M1: 155,582 km (0.07 R)
• M2: 836,850 km (0.071 R)
• M3: 1,316,611 km (0.045 R)
• M4: 2,248,755 km (0.088 R)
• M5: 3,636,275 km (0.095 R)
• M6: 6,154,157 km (0.076 R)
• M7: 6,708,417 km (0.062 R)
• M8: 10,184,025 km (0.091 R)
• M9: 13,669,206 km (0.103 R)
• M10: 14,089,576 km (0.057 R)
• M11: 16,902,166 km (0.084 R)
• M12: 17,332,559 km (0.117 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 263 - 10,947 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit