🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948

Radius: 8.2

Gravity: 14.1 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.83 AU - 0.97 AU

Year: 551 Days

Day: 13.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 52,662,019 km

• M1: 102,026 km (0.083 R)
• M2: 376,388 km (0.076 R)
• M3: 635,941 km (0.096 R)
• M4: 904,918 km (0.112 R)
• M5: 1,379,292 km (0.076 R)
• M6: 1,843,644 km (0.092 R)
• M7: 2,198,790 km (0.105 R)
• M8: 2,534,637 km (0.098 R)
• M9: 3,023,672 km (0.117 R)
• M10: 3,628,646 km (0.086 R)
• M11: 4,265,783 km (0.074 R)
• M12: 4,824,232 km (0.068 R)
• M13: 5,095,303 km (0.091 R)
• M14: 6,184,226 km (0.067 R)
• M15: 6,443,779 km (0.103 R)
• M16: 6,773,193 km (0.117 R)
• M17: 7,354,531 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.3

Radius: 12.7

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.18 AU - 1.28 AU

Year: 881 Days

Day: 13.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 52,662,019 km

• M1: 157,975 km (0.092 R)
• M2: 588,518 km (0.103 R)
• M3: 993,180 km (0.088 R)
• M4: 2,142,989 km (0.073 R)
• M5: 2,757,089 km (0.119 R)
• M6: 3,475,009 km (0.065 R)
• M7: 4,066,818 km (0.028 R)
• M8: 4,882,575 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.7

Radius: 15

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 1.17 AU - 1.39 AU

Year: 935 Days

Day: 8.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 52,662,019 km

• M1: 186,549 km (0.094 R)
• M2: 808,876 km (0.071 R)
• M3: 1,654,852 km (0.071 R)
• M4: 3,394,974 km (0.061 R)
• M5: 4,134,736 km (0.116 R)
• M6: 5,869,772 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.2

Radius: 10.8

Gravity: 7.51 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.86 AU - 2.34 AU

Year: 1965 Days

Day: 13.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 52,662,019 km

• M1: 135,685 km (0.071 R)
• M2: 509,231 km (0.048 R)
• M3: 869,762 km (0.119 R)
• M4: 1,276,519 km (0.064 R)
• M5: 1,799,962 km (0.081 R)
• M6: 2,395,212 km (0.106 R)
• M7: 3,037,884 km (0.116 R)
• M8: 3,773,457 km (0.086 R)
• M9: 5,016,017 km (0.076 R)
• M10: 6,433,456 km (0.083 R)
• M11: 7,234,852 km (0.057 R)
• M12: 8,101,622 km (0.101 R)
• M13: 9,933,747 km (0.103 R)
• M14: 10,589,285 km (0.099 R)
• M15: 11,195,905 km (0.108 R)
• M16: 11,745,527 km (0.028 R)
• M17: 12,395,829 km (0.103 R)
• M18: 12,984,198 km (0.072 R)
• M19: 15,382,251 km (0.081 R)
• M20: 16,660,416 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.1

Radius: 12.3

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 2.89 AU - 4.09 AU

Year: 4210 Days

Day: 7 Hours

Environment

Temp: -213 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,662,019 km

• M1: 187,895 km (0.088 R)
• M2: 676,631 km (0.107 R)
• M3: 1,119,740 km (0.112 R)
• M4: 2,809,149 km (0.1 R)
• M5: 4,561,688 km (0.069 R)
• M6: 5,491,738 km (0.103 R)
• M7: 6,069,784 km (0.116 R)
• M8: 7,504,278 km (0.085 R)
• M9: 9,153,595 km (0.077 R)
• M10: 10,198,236 km (0.059 R)
• M11: 10,669,769 km (0.104 R)
• M12: 11,196,802 km (0.096 R)
• M13: 14,782,663 km (0.096 R)
• M14: 15,336,175 km (0.047 R)
• M15: 18,661,138 km (0.112 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 623.1

Radius: 3.3

Gravity: 57.22 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 5.7 AU - 6.76 AU

Year: 10040 Days

Day: 19.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 52,662,019 km

• M1: 55,650 km (0.053 R)
• M2: 168,746 km (0.062 R)
• M3: 312,360 km (0.079 R)
• M4: 644,916 km (0.086 R)
• M5: 956,828 km (0.03 R)
• M6: 1,551,330 km (0.03 R)
• M7: 1,697,936 km (0.09 R)
• M8: 1,935,048 km (0.083 R)
• M9: 4,719,065 km (0.053 R)
• M10: 5,122,530 km (0.106 R)
• M11: 5,650,012 km (0.117 R)
• M12: 5,787,343 km (0.072 R)
• M13: 7,286,314 km (0.056 R)
• M14: 7,490,216 km (0.086 R)
• M15: 9,743,160 km (0.053 R)
• M16: 10,758,331 km (0.082 R)
• M17: 15,259,132 km (0.118 R)
• M18: 15,727,823 km (0.057 R)
• M19: 18,515,280 km (0.055 R)
• M20: 18,971,404 km (0.034 R)
• M21: 21,698,573 km (0.093 R)
• M22: 24,859,127 km (0.119 R)
• M23: 25,600,833 km (0.093 R)
• M24: 30,997,277 km (0.067 R)
• M25: 31,424,678 km (0.083 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 293

Radius: 7.6

Gravity: 5.07 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 8.72 AU - 9.4 AU

Year: 17608 Days

Day: 21.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 52,662,019 km

• M1: 108,309 km (0.114 R)
• M2: 395,986 km (0.112 R)
• M3: 1,083,837 km (0.069 R)
• M4: 1,542,354 km (0.113 R)
• M5: 1,801,009 km (0.059 R)
• M6: 2,197,294 km (0.062 R)
• M7: 4,187,095 km (0.084 R)
• M8: 4,758,110 km (0.106 R)
• M9: 5,944,421 km (0.097 R)
• M10: 6,626,138 km (0.053 R)
• M11: 8,189,436 km (0.119 R)
• M12: 8,650,946 km (0.091 R)
• M13: 10,835,972 km (0.102 R)
• M14: 11,677,759 km (0.117 R)
• M15: 14,664,481 km (0.119 R)
• M16: 17,288,428 km (0.105 R)
• M17: 23,261,571 km (0.098 R)
• M18: 26,308,730 km (0.074 R)
• M19: 29,184,749 km (0.099 R)
• M20: 30,808,485 km (0.119 R)
• M21: 39,707,912 km (0.095 R)
• M22: 40,232,552 km (0.036 R)
• M23: 40,894,822 km (0.079 R)
• M24: 42,105,368 km (0.12 R)
• M25: 45,164,644 km (0.03 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: 216 - 18,747 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit