🌌 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: 2.42

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.52 AU - 0.8 AU

Year: 346 Days

Day: 38.2 Hours

Environment

Temp: -137 °C

Axial Tilt: 35.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 52,933,423 km

• M1: 184,005 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 696.2

Radius: 8

Gravity: 10.88 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.72 AU - 0.86 AU

Year: 453 Days

Day: 12.4 Hours

Environment

Temp: -137 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 52,933,423 km

• M1: 99,483 km (0.118 R)
• M2: 362,326 km (0.111 R)
• M3: 733,329 km (0.111 R)
• M4: 1,269,488 km (0.119 R)
• M5: 2,340,010 km (0.091 R)
• M6: 2,652,819 km (0.076 R)
• M7: 3,558,784 km (0.087 R)
• M8: 4,778,156 km (0.062 R)
• M9: 5,842,844 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893.2

Radius: 11.1

Gravity: 7.25 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.15 AU - 1.65 AU

Year: 1070 Days

Day: 13.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 52,933,423 km

• M1: 138,079 km (0.095 R)
• M2: 560,992 km (0.114 R)
• M3: 1,200,673 km (0.097 R)
• M4: 1,984,565 km (0.073 R)
• M5: 2,460,735 km (0.1 R)
• M6: 3,267,217 km (0.097 R)
• M7: 4,711,884 km (0.085 R)
• M8: 5,629,517 km (0.077 R)
• M9: 6,130,970 km (0.102 R)
• M10: 6,662,192 km (0.107 R)
• M11: 7,659,261 km (0.066 R)
• M12: 8,057,790 km (0.103 R)
• M13: 9,307,680 km (0.099 R)
• M14: 10,104,588 km (0.032 R)
• M15: 10,880,104 km (0.099 R)
• M16: 11,350,439 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253.3

Radius: 9.5

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.69 AU - 1.81 AU

Year: 1495 Days

Day: 6.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 52,933,423 km

• M1: 118,182 km (0.097 R)
• M2: 487,689 km (0.069 R)
• M3: 884,572 km (0.03 R)
• M4: 1,190,051 km (0.112 R)
• M5: 1,559,408 km (0.066 R)
• M6: 1,918,892 km (0.03 R)
• M7: 2,322,956 km (0.117 R)
• M8: 3,529,612 km (0.118 R)
• M9: 4,320,087 km (0.114 R)
• M10: 4,819,595 km (0.116 R)
• M11: 5,551,876 km (0.097 R)
• M12: 5,913,903 km (0.08 R)
• M13: 6,291,787 km (0.088 R)
• M14: 6,957,498 km (0.048 R)
• M15: 7,260,284 km (0.115 R)
• M16: 7,693,968 km (0.096 R)
• M17: 8,455,122 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.1

Radius: 13.8

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.92 AU - 2.02 AU

Year: 1785 Days

Day: 8.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,933,423 km

• M1: 171,589 km (0.116 R)
• M2: 783,444 km (0.077 R)
• M3: 1,495,530 km (0.106 R)
• M4: 1,936,544 km (0.12 R)
• M5: 2,376,811 km (0.042 R)
• M6: 3,065,560 km (0.081 R)
• M7: 6,610,281 km (0.043 R)
• M8: 7,141,503 km (0.068 R)
• M9: 8,528,275 km (0.079 R)
• M10: 9,529,085 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 308

Radius: 13.7

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 2.9 AU - 4.02 AU

Year: 4156 Days

Day: 6.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 52,933,423 km

• M1: 170,392 km (0.1 R)
• M2: 606,021 km (0.118 R)
• M3: 1,805,347 km (0.055 R)
• M4: 2,275,832 km (0.072 R)
• M5: 3,258,242 km (0.088 R)
• M6: 3,827,910 km (0.092 R)
• M7: 5,511,335 km (0.099 R)
• M8: 7,276,141 km (0.097 R)
• M9: 8,156,824 km (0.113 R)
• M10: 9,356,300 km (0.103 R)
• M11: 10,436,695 km (0.108 R)
• M12: 12,492,619 km (0.113 R)
• M13: 13,249,584 km (0.112 R)
• M14: 14,084,191 km (0.033 R)
• M15: 14,953,504 km (0.085 R)
• M16: 15,603,357 km (0.115 R)
• M17: 16,324,269 km (0.079 R)
• M18: 18,792,933 km (0.092 R)
• M19: 19,256,537 km (0.104 R)

Asteroid Belt

Center: 4.93 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 6.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 848.1

Radius: 5.8

Gravity: 25.21 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 5.91 AU - 6.87 AU

Year: 10430 Days

Day: 15.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 52,933,423 km

• M1: 72,555 km (0.118 R)
• M2: 406,757 km (0.104 R)
• M3: 732,282 km (0.069 R)
• M4: 1,101,040 km (0.079 R)
• M5: 1,499,419 km (0.111 R)
• M6: 3,112,384 km (0.085 R)
• M7: 3,404,698 km (0.087 R)
• M8: 3,635,976 km (0.095 R)
• M9: 4,274,909 km (0.074 R)
• M10: 4,605,819 km (0.072 R)
• M11: 5,595,409 km (0.05 R)
• M12: 8,723,800 km (0.116 R)
• M13: 9,759,017 km (0.073 R)
• M14: 11,490,164 km (0.093 R)
• M15: 11,894,527 km (0.091 R)
• M16: 12,428,142 km (0.026 R)
• M17: 16,113,635 km (0.11 R)
• M18: 25,545,482 km (0.091 R)
• M19: 27,340,656 km (0.103 R)
• M20: 31,291,536 km (0.093 R)
• M21: 32,650,334 km (0.07 R)
• M22: 35,850,531 km (0.07 R)
• M23: 36,962,193 km (0.12 R)
• M24: 37,715,867 km (0.107 R)
• M25: 39,644,782 km (0.088 R)
• M26: 40,170,020 km (0.116 R)
• M27: 51,831,025 km (0.054 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: 236 - 10,591 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit