🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.6

Radius: 9.7

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.43 AU - 0.67 AU

Year: 272 Days

Day: 13.3 Hours

Environment

Temp: -145 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 28,404,224 km

• M1: 120,725 km (0.109 R)
• M2: 424,409 km (0.083 R)
• M3: 733,778 km (0.092 R)
• M4: 1,296,415 km (0.093 R)
• M5: 1,629,719 km (0.051 R)
• M6: 2,558,124 km (0.052 R)
• M7: 2,976,399 km (0.037 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 233

Radius: 10.8

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.62 AU - 0.82 AU

Year: 407 Days

Day: 8.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 28,404,224 km

• M1: 134,339 km (0.061 R)
• M2: 516,711 km (0.114 R)
• M3: 908,358 km (0.088 R)
• M4: 1,430,305 km (0.082 R)
• M5: 2,035,728 km (0.097 R)
• M6: 2,394,613 km (0.046 R)
• M7: 2,999,437 km (0.107 R)
• M8: 3,562,972 km (0.031 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.2

Radius: 10.8

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.1 AU - 1.14 AU

Year: 790 Days

Day: 5.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 28,404,224 km

• M1: 134,339 km (0.091 R)
• M2: 561,142 km (0.073 R)
• M3: 1,031,328 km (0.052 R)
• M4: 1,562,699 km (0.061 R)
• M5: 1,903,783 km (0.066 R)
• M6: 2,335,522 km (0.12 R)
• M7: 2,686,179 km (0.087 R)
• M8: 3,582,121 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 750.6

Radius: 12.9

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.88 AU - 1.38 AU

Year: 801 Days

Day: 7.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 28,404,224 km

• M1: 160,668 km (0.062 R)
• M2: 814,710 km (0.086 R)
• M3: 1,261,409 km (0.109 R)
• M4: 2,089,882 km (0.071 R)
• M5: 2,536,731 km (0.109 R)
• M6: 3,060,324 km (0.088 R)
• M7: 3,472,167 km (0.04 R)
• M8: 4,541,492 km (0.057 R)
• M9: 5,431,899 km (0.035 R)
• M10: 6,163,283 km (0.034 R)
• M11: 6,672,065 km (0.055 R)
• M12: 7,798,537 km (0.118 R)
• M13: 8,420,266 km (0.074 R)
• M14: 9,101,684 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 337.5

Radius: 12.7

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.4 AU - 1.78 AU

Year: 1337 Days

Day: 13.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 28,404,224 km

• M1: 157,975 km (0.093 R)
• M2: 675,734 km (0.057 R)
• M3: 1,390,213 km (0.076 R)
• M4: 1,841,251 km (0.1 R)
• M5: 2,293,635 km (0.111 R)
• M6: 2,958,298 km (0.084 R)
• M7: 3,385,699 km (0.093 R)
• M8: 3,885,356 km (0.111 R)
• M9: 5,201,518 km (0.087 R)
• M10: 5,607,676 km (0.074 R)
• M11: 6,076,815 km (0.067 R)
• M12: 6,506,161 km (0.054 R)
• M13: 6,955,703 km (0.107 R)
• M14: 9,103,180 km (0.098 R)
• M15: 9,523,700 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 333.3

Radius: 13.1

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 2.4 AU - 3.44 AU

Year: 3327 Days

Day: 13 Hours

Environment

Temp: -204 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 28,404,224 km

• M1: 163,959 km (0.036 R)
• M2: 657,034 km (0.098 R)
• M3: 1,260,212 km (0.056 R)
• M4: 1,909,168 km (0.086 R)
• M5: 2,378,606 km (0.057 R)
• M6: 2,910,127 km (0.096 R)
• M7: 7,373,829 km (0.119 R)
• M8: 8,385,110 km (0.065 R)
• M9: 9,008,036 km (0.034 R)
• M10: 13,024,439 km (0.094 R)
• M11: 13,593,061 km (0.062 R)
• M12: 14,132,660 km (0.096 R)
• M13: 14,593,123 km (0.083 R)
• M14: 15,641,654 km (0.041 R)
• M15: 17,888,614 km (0.088 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852.6

Radius: 14.7

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 2.59 AU - 4.11 AU

Year: 4089 Days

Day: 5.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 28,404,224 km

• M1: 182,958 km (0.111 R)
• M2: 944,860 km (0.081 R)
• M3: 1,477,728 km (0.107 R)
• M4: 2,521,921 km (0.108 R)
• M5: 4,553,011 km (0.087 R)
• M6: 5,978,829 km (0.117 R)
• M7: 6,494,492 km (0.114 R)
• M8: 7,205,980 km (0.037 R)
• M9: 9,575,311 km (0.093 R)
• M10: 11,805,217 km (0.053 R)
• M11: 12,522,539 km (0.093 R)
• M12: 14,150,014 km (0.064 R)
• M13: 14,632,168 km (0.109 R)
• M14: 15,800,228 km (0.099 R)
• M15: 16,377,825 km (0.077 R)
• M16: 16,850,106 km (0.085 R)
• M17: 18,766,754 km (0.092 R)
• M18: 23,177,049 km (0.089 R)
• M19: 25,229,382 km (0.035 R)
• M20: 25,780,799 km (0.101 R)
• M21: 26,989,251 km (0.116 R)
• M22: 28,319,625 km (0.068 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 419 - 12,476 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit