🌌 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 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.37

Radius: 0.67

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.56 AU - 0.72 AU

Year: 331 Days

Day: 24.1 Hours

Environment

Temp: -134 °C

Axial Tilt: 32.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.53

Radius: 1.19

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.52 AU - 0.76 AU

Year: 331 Days

Day: 33.8 Hours

Environment

Temp: -139 °C

Axial Tilt: 2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 41,633,891 km

• M1: 39,793 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 75.8

Radius: 9.4

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.74 AU - 1.02 AU

Year: 533 Days

Day: 13 Hours

Environment

Temp: -153 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 41,633,891 km

• M1: 117,135 km (0.072 R)
• M2: 657,034 km (0.083 R)
• M3: 1,208,601 km (0.095 R)
• M4: 1,707,809 km (0.088 R)
• M5: 2,108,582 km (0.101 R)
• M6: 2,516,236 km (0.108 R)
• M7: 3,147,539 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 399.2

Radius: 14

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.85 AU - 0.97 AU

Year: 561 Days

Day: 11.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,633,891 km

• M1: 174,132 km (0.062 R)
• M2: 639,232 km (0.111 R)
• M3: 1,085,033 km (0.033 R)
• M4: 1,556,566 km (0.079 R)
• M5: 2,193,404 km (0.086 R)
• M6: 2,731,358 km (0.115 R)
• M7: 3,197,954 km (0.108 R)
• M8: 3,843,917 km (0.116 R)
• M9: 5,795,870 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145

Radius: 12.6

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.94 AU - 1 AU

Year: 617 Days

Day: 9.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,633,891 km

• M1: 156,629 km (0.117 R)
• M2: 912,397 km (0.106 R)
• M3: 1,422,077 km (0.096 R)
• M4: 1,986,660 km (0.039 R)
• M5: 2,426,627 km (0.102 R)
• M6: 2,827,400 km (0.117 R)
• M7: 3,231,314 km (0.101 R)
• M8: 3,629,095 km (0.089 R)
• M9: 4,408,350 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254

Radius: 8.6

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.2 AU - 1.24 AU

Year: 870 Days

Day: 8.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 41,633,891 km

• M1: 106,962 km (0.087 R)
• M2: 417,378 km (0.084 R)
• M3: 742,155 km (0.087 R)
• M4: 1,080,994 km (0.069 R)
• M5: 1,372,112 km (0.066 R)
• M6: 1,778,868 km (0.038 R)
• M7: 2,162,736 km (0.12 R)
• M8: 2,478,687 km (0.113 R)
• M9: 3,591,396 km (0.034 R)
• M10: 4,208,188 km (0.039 R)
• M11: 4,489,133 km (0.073 R)
• M12: 6,049,887 km (0.066 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 231.9

Radius: 8.9

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 5.29 AU - 5.53 AU

Year: 8125 Days

Day: 13.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 41,633,891 km

• M1: 110,702 km (0.067 R)
• M2: 414,984 km (0.102 R)
• M3: 999,314 km (0.093 R)
• M4: 1,363,734 km (0.086 R)
• M5: 1,764,357 km (0.099 R)
• M6: 2,196,845 km (0.076 R)
• M7: 2,545,557 km (0.084 R)
• M8: 3,099,967 km (0.073 R)
• M9: 3,625,205 km (0.078 R)
• M10: 4,045,725 km (0.117 R)
• M11: 7,050,248 km (0.1 R)
• M12: 7,671,379 km (0.088 R)
• M13: 9,922,528 km (0.097 R)
• M14: 12,831,009 km (0.069 R)
• M15: 16,739,403 km (0.112 R)
• M16: 18,930,264 km (0.065 R)
• M17: 22,896,253 km (0.116 R)
• M18: 23,493,897 km (0.074 R)
• M19: 27,887,736 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 939.4

Radius: 6.9

Gravity: 19.73 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 9.14 AU - 9.78 AU

Year: 18787 Days

Day: 19.2 Hours

Environment

Temp: -236 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 41,633,891 km

• M1: 86,019 km (0.054 R)
• M2: 312,809 km (0.111 R)
• M3: 659,128 km (0.112 R)
• M4: 984,055 km (0.092 R)
• M5: 1,941,182 km (0.064 R)
• M6: 2,165,130 km (0.102 R)
• M7: 2,429,320 km (0.093 R)
• M8: 3,896,277 km (0.115 R)
• M9: 4,221,802 km (0.106 R)
• M10: 4,460,410 km (0.111 R)
• M11: 6,436,149 km (0.069 R)
• M12: 7,765,775 km (0.117 R)
• M13: 10,149,617 km (0.029 R)
• M14: 20,435,069 km (0.067 R)
• M15: 24,012,553 km (0.116 R)
• M16: 26,809,434 km (0.096 R)
• M17: 33,847,416 km (0.119 R)
• M18: 38,080,587 km (0.101 R)
• M19: 40,476,546 km (0.102 R)
• M20: 44,255,837 km (0.098 R)
• M21: 62,541,185 km (0.104 R)
• M22: 71,969,740 km (0.08 R)
• M23: 76,085,178 km (0.04 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 85

Radius: 7

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 10.07 AU - 11.57 AU

Year: 22980 Days

Day: 15.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,633,891 km

• M1: 87,066 km (0.088 R)
• M2: 381,175 km (0.049 R)
• M3: 1,110,914 km (0.094 R)
• M4: 6,413,560 km (0.088 R)
• M5: 10,525,257 km (0.061 R)
• M6: 15,465,428 km (0.073 R)
• M7: 27,351,577 km (0.064 R)
• M8: 30,577,057 km (0.109 R)
• M9: 33,613,445 km (0.118 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: 462 - 18,154 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit