🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 604.3

Radius: 12.5

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.69 AU - 0.97 AU

Year: 488 Days

Day: 11.1 Hours

Environment

Temp: -148 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,359,947 km

• M1: 155,432 km (0.115 R)
• M2: 568,023 km (0.119 R)
• M3: 1,002,007 km (0.119 R)
• M4: 1,397,244 km (0.066 R)
• M5: 1,829,732 km (0.085 R)
• M6: 2,772,647 km (0.03 R)
• M7: 3,162,948 km (0.089 R)
• M8: 3,565,516 km (0.081 R)
• M9: 3,962,698 km (0.034 R)
• M10: 4,360,928 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.2

Radius: 13.6

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.85 AU - 1.21 AU

Year: 675 Days

Day: 14.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,359,947 km

• M1: 169,195 km (0.082 R)
• M2: 822,938 km (0.1 R)
• M3: 1,394,402 km (0.12 R)
• M4: 1,988,006 km (0.112 R)
• M5: 2,583,705 km (0.101 R)
• M6: 3,451,971 km (0.081 R)
• M7: 4,064,275 km (0.059 R)
• M8: 4,981,759 km (0.074 R)
• M9: 5,673,350 km (0.11 R)
• M10: 7,560,527 km (0.044 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.3

Radius: 10.6

Gravity: 6.65 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.02 AU - 1.04 AU

Year: 675 Days

Day: 14.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 74,359,947 km

• M1: 131,796 km (0.104 R)
• M2: 658,530 km (0.088 R)
• M3: 1,050,027 km (0.079 R)
• M4: 1,677,890 km (0.042 R)
• M5: 2,456,098 km (0.112 R)
• M6: 3,706,736 km (0.071 R)
• M7: 4,221,652 km (0.062 R)
• M8: 5,215,281 km (0.054 R)
• M9: 5,729,299 km (0.1 R)
• M10: 6,236,735 km (0.1 R)
• M11: 6,668,175 km (0.119 R)
• M12: 7,031,998 km (0.1 R)
• M13: 7,364,105 km (0.105 R)
• M14: 7,893,681 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851.6

Radius: 8.8

Gravity: 11 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.01 AU - 1.19 AU

Year: 745 Days

Day: 13.5 Hours

Environment

Temp: -165 °C

Axial Tilt: 169.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 74,359,947 km

• M1: 109,506 km (0.113 R)
• M2: 430,543 km (0.06 R)
• M3: 841,338 km (0.079 R)
• M4: 1,196,334 km (0.098 R)
• M5: 1,552,826 km (0.092 R)
• M6: 2,046,948 km (0.048 R)
• M7: 3,228,322 km (0.084 R)
• M8: 4,004,735 km (0.075 R)
• M9: 5,007,789 km (0.045 R)
• M10: 5,301,599 km (0.027 R)
• M11: 6,148,921 km (0.079 R)
• M12: 7,407,787 km (0.081 R)
• M13: 7,693,370 km (0.102 R)
• M14: 8,337,389 km (0.072 R)
• M15: 9,016,862 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658

Radius: 8.1

Gravity: 10.03 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 2.47 AU - 2.51 AU

Year: 2537 Days

Day: 13.6 Hours

Environment

Temp: -204 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 74,359,947 km

• M1: 101,727 km (0.049 R)
• M2: 902,075 km (0.098 R)
• M3: 1,245,103 km (0.079 R)
• M4: 1,706,613 km (0.117 R)
• M5: 2,359,757 km (0.115 R)
• M6: 2,766,962 km (0.095 R)
• M7: 3,069,300 km (0.113 R)
• M8: 3,666,195 km (0.063 R)
• M9: 4,485,991 km (0.116 R)
• M10: 6,763,170 km (0.118 R)
• M11: 7,617,075 km (0.07 R)
• M12: 8,214,419 km (0.076 R)
• M13: 10,008,995 km (0.037 R)
• M14: 11,967,082 km (0.115 R)
• M15: 13,526,191 km (0.105 R)
• M16: 15,960,298 km (0.095 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 299.6

Radius: 4.1

Gravity: 17.82 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 6.82 AU - 11.02 AU

Year: 17201 Days

Day: 20.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 74,359,947 km

• M1: 60,587 km (0.11 R)
• M2: 311,912 km (0.064 R)
• M3: 487,539 km (0.064 R)
• M4: 645,365 km (0.079 R)
• M5: 856,597 km (0.098 R)
• M6: 1,172,099 km (0.112 R)
• M7: 2,012,839 km (0.05 R)
• M8: 4,171,088 km (0.105 R)
• M9: 5,031,575 km (0.105 R)
• M10: 5,230,390 km (0.099 R)
• M11: 5,608,424 km (0.063 R)
• M12: 9,264,447 km (0.089 R)
• M13: 9,715,035 km (0.115 R)
• M14: 11,492,557 km (0.063 R)
• M15: 19,691,269 km (0.11 R)
• M16: 22,509,244 km (0.091 R)
• M17: 27,680,992 km (0.119 R)
• M18: 29,888,907 km (0.101 R)
• M19: 31,760,226 km (0.084 R)
• M20: 33,242,741 km (0.115 R)
• M21: 38,474,628 km (0.107 R)
• M22: 47,090,867 km (0.091 R)
• M23: 49,316,434 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 760.2

Radius: 4.9

Gravity: 31.66 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 8.79 AU - 9.83 AU

Year: 18342 Days

Day: 15.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 74,359,947 km

• M1: 61,335 km (0.108 R)
• M2: 239,656 km (0.065 R)
• M3: 413,189 km (0.115 R)
• M4: 655,388 km (0.062 R)
• M5: 1,691,952 km (0.1 R)
• M6: 2,930,024 km (0.115 R)
• M7: 3,246,573 km (0.074 R)
• M8: 5,371,312 km (0.048 R)
• M9: 7,824,268 km (0.12 R)
• M10: 9,573,067 km (0.107 R)
• M11: 10,268,697 km (0.086 R)
• M12: 10,812,186 km (0.088 R)
• M13: 12,900,423 km (0.118 R)
• M14: 13,604,430 km (0.115 R)
• M15: 14,935,702 km (0.038 R)
• M16: 18,200,376 km (0.06 R)
• M17: 28,141,005 km (0.117 R)
• M18: 32,036,982 km (0.066 R)
• M19: 32,805,317 km (0.077 R)
• M20: 33,455,021 km (0.099 R)
• M21: 35,184,222 km (0.117 R)
• M22: 41,327,459 km (0.118 R)
• M23: 44,571,788 km (0.046 R)
• M24: 48,315,325 km (0.077 R)
• M25: 65,795,986 km (0.103 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: 228 - 13,411 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit