🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 337.5

Radius: 8.6

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.49 AU - 0.57 AU

Year: 262 Days

Day: 5.3 Hours

Environment

Temp: -139 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,345,476 km

• M1: 106,962 km (0.096 R)
• M2: 374,743 km (0.098 R)
• M3: 737,218 km (0.06 R)
• M4: 1,095,954 km (0.115 R)
• M5: 1,729,950 km (0.066 R)
• M6: 2,062,805 km (0.05 R)
• M7: 2,338,364 km (0.025 R)
• M8: 2,730,311 km (0.034 R)
• M9: 3,231,613 km (0.062 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.2

Radius: 9.6

Gravity: 8.66 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.41 AU - 0.67 AU

Year: 269 Days

Day: 11.2 Hours

Environment

Temp: -147 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,345,476 km

• M1: 119,379 km (0.112 R)
• M2: 526,734 km (0.055 R)
• M3: 944,860 km (0.091 R)
• M4: 1,302,848 km (0.106 R)
• M5: 1,606,382 km (0.071 R)
• M6: 2,394,613 km (0.08 R)
• M7: 2,790,000 km (0.073 R)
• M8: 3,576,287 km (0.035 R)
• M9: 4,283,286 km (0.052 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 489.3

Radius: 11.3

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.52 AU - 0.74 AU

Year: 339 Days

Day: 11.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 21,345,476 km

• M1: 140,472 km (0.077 R)
• M2: 580,589 km (0.051 R)
• M3: 971,638 km (0.072 R)
• M4: 1,514,080 km (0.102 R)
• M5: 2,268,502 km (0.036 R)
• M6: 2,736,594 km (0.086 R)
• M7: 3,417,713 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439

Radius: 8.5

Gravity: 6.08 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.77 AU - 0.79 AU

Year: 467 Days

Day: 6.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,345,476 km

• M1: 105,766 km (0.062 R)
• M2: 389,553 km (0.066 R)
• M3: 724,054 km (0.098 R)
• M4: 1,131,110 km (0.071 R)
• M5: 1,401,134 km (0.083 R)
• M6: 1,707,660 km (0.082 R)
• M7: 2,075,371 km (0.096 R)
• M8: 2,599,562 km (0.12 R)
• M9: 2,919,402 km (0.078 R)
• M10: 4,251,571 km (0.115 R)
• M11: 4,828,271 km (0.07 R)
• M12: 5,282,600 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.5

Radius: 9.3

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.8 AU - 1.12 AU

Year: 638 Days

Day: 13.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 21,345,476 km

• M1: 115,639 km (0.068 R)
• M2: 425,756 km (0.084 R)
• M3: 737,218 km (0.086 R)
• M4: 1,159,683 km (0.101 R)
• M5: 1,510,490 km (0.114 R)
• M6: 2,033,334 km (0.09 R)
• M7: 4,680,169 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 251.3

Radius: 15

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.79 AU - 1.21 AU

Year: 678 Days

Day: 6.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 21,345,476 km

• M1: 186,848 km (0.071 R)
• M2: 759,658 km (0.076 R)
• M3: 1,252,583 km (0.105 R)
• M4: 1,773,632 km (0.115 R)
• M5: 2,450,862 km (0.052 R)
• M6: 2,918,654 km (0.068 R)
• M7: 3,673,376 km (0.109 R)
• M8: 4,387,706 km (0.113 R)
• M9: 4,859,986 km (0.073 R)
• M10: 5,462,117 km (0.066 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207.2

Radius: 10.7

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.58 AU - 1.84 AU

Year: 1517 Days

Day: 7.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,345,476 km

• M1: 134,040 km (0.09 R)
• M2: 732,132 km (0.119 R)
• M3: 1,794,277 km (0.1 R)
• M4: 2,632,474 km (0.078 R)
• M5: 3,006,169 km (0.104 R)
• M6: 4,202,055 km (0.081 R)
• M7: 4,613,000 km (0.108 R)
• M8: 5,289,332 km (0.079 R)
• M9: 5,651,508 km (0.059 R)
• M10: 6,194,997 km (0.059 R)
• M11: 6,750,903 km (0.064 R)
• M12: 7,504,128 km (0.105 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 286.6

Radius: 11.9

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 2.94 AU - 4.22 AU

Year: 4594 Days

Day: 12.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 21,345,476 km

• M1: 147,952 km (0.035 R)
• M2: 520,601 km (0.067 R)
• M3: 1,072,467 km (0.113 R)
• M4: 1,663,080 km (0.078 R)
• M5: 2,157,949 km (0.069 R)
• M6: 2,781,772 km (0.11 R)
• M7: 3,791,408 km (0.061 R)
• M8: 4,326,819 km (0.119 R)
• M9: 4,749,583 km (0.119 R)
• M10: 5,372,957 km (0.084 R)
• M11: 6,438,094 km (0.08 R)
• M12: 7,734,808 km (0.108 R)
• M13: 8,360,277 km (0.096 R)
• M14: 11,247,067 km (0.099 R)
• M15: 12,577,740 km (0.078 R)
• M16: 13,536,962 km (0.089 R)
• M17: 14,741,673 km (0.085 R)
• M18: 15,807,857 km (0.101 R)
• M19: 17,143,467 km (0.041 R)
• M20: 18,726,961 km (0.069 R)
• M21: 20,840,779 km (0.117 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 311 - 14,834 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit