🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 685.7

Radius: 14.3

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.62 AU - 0.66 AU

Year: 353 Days

Day: 14.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,407,387 km

• M1: 177,872 km (0.032 R)
• M2: 812,316 km (0.115 R)
• M3: 1,320,650 km (0.098 R)
• M4: 1,815,819 km (0.1 R)
• M5: 2,306,650 km (0.083 R)
• M6: 2,798,228 km (0.064 R)
• M7: 3,382,557 km (0.115 R)
• M8: 4,201,307 km (0.035 R)
• M9: 4,686,303 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.9

Radius: 11.7

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.5 AU - 0.8 AU

Year: 362 Days

Day: 14.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 41,407,387 km

• M1: 145,708 km (0.029 R)
• M2: 548,426 km (0.102 R)
• M3: 980,764 km (0.064 R)
• M4: 1,450,052 km (0.116 R)
• M5: 2,035,129 km (0.08 R)
• M6: 2,501,576 km (0.068 R)
• M7: 3,021,279 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130

Radius: 10.8

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.61 AU - 0.73 AU

Year: 379 Days

Day: 5.1 Hours

Environment

Temp: -152 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 41,407,387 km

• M1: 137,780 km (0.111 R)
• M2: 615,296 km (0.115 R)
• M3: 1,035,965 km (0.112 R)
• M4: 1,475,035 km (0.093 R)
• M5: 1,827,039 km (0.055 R)
• M6: 2,402,991 km (0.099 R)
• M7: 2,871,232 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216.2

Radius: 9.3

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.69 AU - 1.05 AU

Year: 560 Days

Day: 10 Hours

Environment

Temp: -164 °C

Axial Tilt: 46.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 41,407,387 km

• M1: 117,734 km (0.104 R)
• M2: 473,477 km (0.109 R)
• M3: 763,697 km (0.114 R)
• M4: 1,068,278 km (0.084 R)
• M5: 1,524,103 km (0.11 R)
• M6: 2,529,550 km (0.116 R)
• M7: 3,039,829 km (0.12 R)
• M8: 3,889,844 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507

Radius: 13.8

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.12 AU - 1.28 AU

Year: 907 Days

Day: 9.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 41,407,387 km

• M1: 171,738 km (0.086 R)
• M2: 673,041 km (0.109 R)
• M3: 1,114,953 km (0.043 R)
• M4: 1,568,833 km (0.1 R)
• M5: 2,148,824 km (0.099 R)
• M6: 3,322,270 km (0.034 R)
• M7: 5,295,465 km (0.11 R)
• M8: 5,882,487 km (0.099 R)
• M9: 6,855,472 km (0.065 R)
• M10: 8,349,656 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 846.7

Radius: 11.3

Gravity: 6.63 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.86 AU - 2.26 AU

Year: 2041 Days

Day: 5.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 41,407,387 km

• M1: 140,472 km (0.067 R)
• M2: 567,574 km (0.084 R)
• M3: 1,118,992 km (0.116 R)
• M4: 2,097,063 km (0.055 R)
• M5: 2,789,252 km (0.071 R)
• M6: 3,773,905 km (0.117 R)
• M7: 4,136,381 km (0.118 R)
• M8: 4,522,044 km (0.069 R)
• M9: 5,343,038 km (0.082 R)
• M10: 5,801,854 km (0.083 R)
• M11: 6,418,945 km (0.094 R)
• M12: 6,966,174 km (0.085 R)
• M13: 7,663,749 km (0.115 R)
• M14: 8,730,981 km (0.051 R)
• M15: 9,369,165 km (0.105 R)
• M16: 10,928,424 km (0.08 R)
• M17: 11,471,614 km (0.094 R)
• M18: 12,114,436 km (0.1 R)
• M19: 14,006,250 km (0.115 R)
• M20: 14,881,248 km (0.077 R)
• M21: 16,137,272 km (0.071 R)
• M22: 17,202,259 km (0.108 R)
• M23: 17,567,428 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 979

Radius: 12.9

Gravity: 5.88 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 2.74 AU - 4 AU

Year: 4270 Days

Day: 11 Hours

Environment

Temp: -225 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 41,407,387 km

• M1: 160,519 km (0.074 R)
• M2: 565,929 km (0.102 R)
• M3: 982,708 km (0.06 R)
• M4: 1,715,738 km (0.114 R)
• M5: 2,515,039 km (0.051 R)
• M6: 4,517,407 km (0.057 R)
• M7: 5,653,752 km (0.066 R)
• M8: 6,447,519 km (0.095 R)
• M9: 7,349,145 km (0.092 R)
• M10: 8,797,851 km (0.07 R)
• M11: 9,779,362 km (0.046 R)
• M12: 10,742,025 km (0.101 R)
• M13: 12,253,861 km (0.117 R)
• M14: 13,530,230 km (0.1 R)
• M15: 14,337,610 km (0.12 R)
• M16: 15,521,677 km (0.102 R)
• M17: 18,276,970 km (0.11 R)
• M18: 19,196,848 km (0.065 R)
• M19: 21,343,427 km (0.082 R)
• M20: 21,776,663 km (0.054 R)
• M21: 22,660,936 km (0.045 R)
• M22: 25,781,847 km (0.052 R)
• M23: 27,360,254 km (0.095 R)
• M24: 28,389,786 km (0.068 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 298.7

Radius: 6.1

Gravity: 8.03 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 6.29 AU - 7.25 AU

Year: 12159 Days

Day: 17.5 Hours

Environment

Temp: -239 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 41,407,387 km

• M1: 76,295 km (0.098 R)
• M2: 275,410 km (0.113 R)
• M3: 475,272 km (0.039 R)
• M4: 713,881 km (0.066 R)
• M5: 2,760,978 km (0.103 R)
• M6: 3,072,890 km (0.071 R)
• M7: 3,384,951 km (0.111 R)
• M8: 3,669,187 km (0.101 R)
• M9: 4,732,977 km (0.092 R)
• M10: 5,273,325 km (0.05 R)
• M11: 5,754,282 km (0.113 R)
• M12: 7,892,484 km (0.108 R)
• M13: 8,435,674 km (0.101 R)
• M14: 25,818,648 km (0.061 R)
• M15: 28,146,241 km (0.112 R)
• M16: 32,155,464 km (0.084 R)
• M17: 34,186,554 km (0.055 R)
• M18: 39,095,908 km (0.05 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 165 - 17,429 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit