🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.37

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.46 AU - 0.56 AU

Year: 239 Days

Day: 43.9 Hours

Environment

Temp: -116 °C

Axial Tilt: 28.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207.6

Radius: 10.2

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.95 AU - 1.05 AU

Year: 656 Days

Day: 5.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 160.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 80,223,698 km

• M1: 128,505 km (0.056 R)
• M2: 486,791 km (0.1 R)
• M3: 887,564 km (0.109 R)
• M4: 1,225,207 km (0.089 R)
• M5: 1,576,014 km (0.043 R)
• M6: 1,948,063 km (0.067 R)
• M7: 2,352,427 km (0.047 R)
• M8: 2,694,557 km (0.109 R)
• M9: 3,717,208 km (0.12 R)
• M10: 4,093,147 km (0.082 R)
• M11: 4,662,218 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.4

Radius: 11.3

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.17 AU - 1.63 AU

Year: 1087 Days

Day: 14.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 80,223,698 km

• M1: 140,472 km (0.1 R)
• M2: 509,381 km (0.03 R)
• M3: 871,408 km (0.036 R)
• M4: 1,599,201 km (0.085 R)
• M5: 3,211,417 km (0.043 R)
• M6: 3,941,455 km (0.119 R)
• M7: 4,683,760 km (0.085 R)
• M8: 5,446,858 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.3

Radius: 13.6

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 2.05 AU - 2.21 AU

Year: 2039 Days

Day: 7.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 80,223,698 km

• M1: 169,195 km (0.071 R)
• M2: 831,016 km (0.085 R)
• M3: 1,259,614 km (0.111 R)
• M4: 1,719,478 km (0.116 R)
• M5: 2,540,321 km (0.074 R)
• M6: 3,305,963 km (0.08 R)
• M7: 3,816,690 km (0.112 R)
• M8: 4,256,059 km (0.108 R)
• M9: 4,767,086 km (0.062 R)
• M10: 5,298,607 km (0.081 R)
• M11: 5,913,604 km (0.106 R)
• M12: 7,674,670 km (0.109 R)
• M13: 9,097,645 km (0.083 R)
• M14: 9,856,555 km (0.105 R)
• M15: 11,124,247 km (0.106 R)
• M16: 11,674,767 km (0.107 R)
• M17: 12,135,379 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 449.1

Radius: 13.1

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 3.49 AU - 5.11 AU

Year: 5849 Days

Day: 14.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 80,223,698 km

• M1: 163,959 km (0.101 R)
• M2: 615,446 km (0.116 R)
• M3: 1,025,643 km (0.08 R)
• M4: 2,016,430 km (0.073 R)
• M5: 2,819,621 km (0.086 R)
• M6: 4,523,690 km (0.109 R)
• M7: 6,080,854 km (0.032 R)
• M8: 6,769,004 km (0.117 R)
• M9: 7,404,646 km (0.115 R)
• M10: 9,189,199 km (0.057 R)
• M11: 11,337,125 km (0.059 R)
• M12: 12,826,222 km (0.069 R)
• M13: 14,388,024 km (0.096 R)
• M14: 14,935,702 km (0.059 R)
• M15: 16,963,351 km (0.055 R)
• M16: 26,107,970 km (0.115 R)
• M17: 26,923,727 km (0.118 R)
• M18: 27,504,915 km (0.097 R)
• M19: 28,349,544 km (0.114 R)

Planet 6 - Ice Giant

Semi-Major Axis: 11.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 556.1

Radius: 6.8

Gravity: 12.03 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 10.13 AU - 11.93 AU

Year: 24031 Days

Day: 19.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 80,223,698 km

• M1: 84,523 km (0.05 R)
• M2: 333,902 km (0.099 R)
• M3: 651,798 km (0.045 R)
• M4: 1,059,602 km (0.118 R)
• M5: 2,589,390 km (0.027 R)
• M6: 2,990,761 km (0.06 R)
• M7: 3,823,572 km (0.079 R)
• M8: 5,175,039 km (0.033 R)
• M9: 5,408,262 km (0.118 R)
• M10: 5,812,326 km (0.12 R)
• M11: 6,150,118 km (0.091 R)
• M12: 9,227,197 km (0.099 R)
• M13: 9,745,703 km (0.099 R)
• M14: 11,417,908 km (0.074 R)
• M15: 11,880,913 km (0.11 R)
• M16: 14,538,669 km (0.083 R)
• M17: 15,964,486 km (0.076 R)
• M18: 16,795,802 km (0.095 R)
• M19: 22,296,515 km (0.092 R)
• M20: 23,545,658 km (0.072 R)
• M21: 29,623,969 km (0.039 R)
• M22: 29,871,852 km (0.075 R)
• M23: 32,035,038 km (0.077 R)
• M24: 34,164,414 km (0.106 R)
• M25: 40,808,803 km (0.074 R)
• M26: 45,576,637 km (0.052 R)
• M27: 50,702,758 km (0.114 R)
• M28: 53,955,763 km (0.081 R)
• M29: 55,445,309 km (0.097 R)
• M30: 64,753,139 km (0.081 R)
• M31: 67,286,130 km (0.083 R)
• M32: 69,228,659 km (0.083 R)
• M33: 78,789,758 km (0.105 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 271 - 18,509 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit