🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.36

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.4 AU - 0.62 AU

Year: 134 Days

Day: 12.6 Hours

Environment

Temp: 207 °C

Axial Tilt: 38.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.32

Radius: 1.12

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.11 AU - 1.47 AU

Year: 538 Days

Day: 36.1 Hours

Environment

Temp: -11 °C

Axial Tilt: 39.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 49,697,989 km

• M1: 42,935 km (0.108 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.84

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 2.37 AU - 2.43 AU

Year: 1365 Days

Day: 23.9 Hours

Environment

Temp: -93 °C

Axial Tilt: 19.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 49,697,989 km

• M1: 898,634 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.9

Radius: 9.2

Gravity: 10.3 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 4.27 AU - 5.51 AU

Year: 3970 Days

Day: 9.7 Hours

Environment

Temp: -135 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 49,697,989 km

• M1: 114,442 km (0.081 R)
• M2: 445,652 km (0.108 R)
• M3: 747,690 km (0.049 R)
• M4: 1,232,238 km (0.088 R)
• M5: 1,902,735 km (0.09 R)
• M6: 2,446,374 km (0.092 R)
• M7: 2,923,890 km (0.119 R)
• M8: 3,243,431 km (0.057 R)
• M9: 3,756,103 km (0.084 R)
• M10: 4,227,636 km (0.113 R)
• M11: 5,048,031 km (0.054 R)
• M12: 5,623,085 km (0.091 R)
• M13: 9,374,102 km (0.099 R)
• M14: 11,997,450 km (0.112 R)
• M15: 12,332,400 km (0.11 R)
• M16: 13,121,528 km (0.092 R)
• M17: 15,185,680 km (0.079 R)
• M18: 15,747,869 km (0.095 R)
• M19: 16,617,331 km (0.052 R)
• M20: 17,274,964 km (0.084 R)
• M21: 22,015,571 km (0.079 R)
• M22: 23,695,854 km (0.088 R)
• M23: 26,173,494 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339.1

Radius: 10.9

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 6.54 AU - 10.9 AU

Year: 9453 Days

Day: 11.5 Hours

Environment

Temp: -171 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 49,697,989 km

• M1: 135,835 km (0.111 R)
• M2: 487,240 km (0.076 R)
• M3: 1,479,074 km (0.1 R)
• M4: 2,812,141 km (0.091 R)
• M5: 4,683,760 km (0.067 R)
• M6: 5,370,564 km (0.097 R)
• M7: 7,345,555 km (0.107 R)
• M8: 7,761,437 km (0.085 R)
• M9: 8,681,912 km (0.1 R)
• M10: 10,548,744 km (0.112 R)
• M11: 11,177,355 km (0.086 R)
• M12: 11,881,811 km (0.092 R)
• M13: 13,103,427 km (0.099 R)
• M14: 14,524,158 km (0.067 R)
• M15: 21,091,056 km (0.098 R)
• M16: 23,521,872 km (0.06 R)
• M17: 26,396,245 km (0.048 R)
• M18: 32,126,442 km (0.082 R)
• M19: 36,303,214 km (0.058 R)

Planet 6 - Gas Giant

Semi-Major Axis: 11.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.1

Radius: 11.3

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 11.21 AU - 12.47 AU

Year: 14955 Days

Day: 13.3 Hours

Environment

Temp: -174 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,697,989 km

• M1: 145,559 km (0.105 R)
• M2: 616,642 km (0.075 R)
• M3: 1,256,024 km (0.103 R)
• M4: 1,960,779 km (0.082 R)
• M5: 2,427,225 km (0.069 R)
• M6: 2,931,370 km (0.039 R)
• M7: 3,606,954 km (0.051 R)
• M8: 4,774,416 km (0.091 R)
• M9: 5,161,875 km (0.117 R)
• M10: 6,734,447 km (0.09 R)
• M11: 7,425,141 km (0.098 R)
• M12: 10,325,544 km (0.105 R)
• M13: 15,359,662 km (0.12 R)
• M14: 17,936,785 km (0.1 R)
• M15: 24,764,432 km (0.074 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 487.2

Radius: 5.3

Gravity: 17.34 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 11.89 AU - 13.23 AU

Year: 16340 Days

Day: 24.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 49,697,989 km

• M1: 66,272 km (0.041 R)
• M2: 262,095 km (0.115 R)
• M3: 777,909 km (0.085 R)
• M4: 959,371 km (0.064 R)
• M5: 10,038,616 km (0.099 R)
• M6: 11,515,146 km (0.03 R)
• M7: 18,139,340 km (0.067 R)
• M8: 19,543,765 km (0.109 R)
• M9: 20,841,975 km (0.116 R)
• M10: 25,684,758 km (0.112 R)
• M11: 25,888,660 km (0.1 R)
• M12: 29,077,637 km (0.073 R)
• M13: 47,297,611 km (0.039 R)
• M14: 47,603,987 km (0.103 R)
• M15: 49,785,723 km (0.1 R)
• M16: 50,102,720 km (0.074 R)
• M17: 57,945,987 km (0.087 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 80.3

Radius: 4.6

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 16.26 AU - 22.1 AU

Year: 30835 Days

Day: 18.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 49,697,989 km

• M1: 57,146 km (0.078 R)
• M2: 211,681 km (0.11 R)
• M3: 484,847 km (0.092 R)
• M4: 949,946 km (0.029 R)
• M5: 1,305,840 km (0.074 R)
• M6: 1,479,523 km (0.097 R)
• M7: 1,638,545 km (0.07 R)
• M8: 2,315,775 km (0.032 R)
• M9: 2,674,960 km (0.114 R)
• M10: 3,258,092 km (0.102 R)
• M11: 4,257,107 km (0.114 R)
• M12: 5,016,166 km (0.104 R)
• M13: 5,478,723 km (0.079 R)
• M14: 6,005,307 km (0.11 R)
• M15: 7,158,557 km (0.083 R)
• M16: 7,364,254 km (0.106 R)
• M17: 9,058,151 km (0.058 R)
• M18: 10,779,574 km (0.109 R)
• M19: 14,458,933 km (0.119 R)
• M20: 17,303,836 km (0.072 R)
• M21: 20,172,824 km (0.115 R)
• M22: 21,083,277 km (0.117 R)
• M23: 21,336,247 km (0.097 R)
• M24: 23,887,190 km (0.054 R)
• M25: 29,795,857 km (0.096 R)
• M26: 31,852,379 km (0.1 R)
• M27: 33,085,065 km (0.085 R)
• M28: 33,770,822 km (0.089 R)
• M29: 36,851,790 km (0.105 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 250 - 11,661 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit