🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.5

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.73 AU - 1.13 AU

Year: 326 Days

Day: 16.3 Hours

Environment

Temp: 109 °C

Axial Tilt: 31 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.02

Radius: 1.56

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 2.4 AU - 3.62 AU

Year: 1898 Days

Day: 12.6 Hours

Environment

Temp: -100 °C

Axial Tilt: 38.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.08

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 3.11 AU - 4.35 AU

Year: 2618 Days

Day: 23.8 Hours

Environment

Temp: -117 °C

Axial Tilt: 38.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.05

Radius: 1.33

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 3 AU - 4.48 AU

Year: 2629 Days

Day: 36.3 Hours

Environment

Temp: -124 °C

Axial Tilt: 20.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,542,831 km

• M1: 210,484 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 828.8

Radius: 14.9

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 4.02 AU - 5.94 AU

Year: 4039 Days

Day: 9 Hours

Environment

Temp: -130 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 46,542,831 km

• M1: 185,501 km (0.025 R)
• M2: 718,967 km (0.119 R)
• M3: 1,384,079 km (0.109 R)
• M4: 2,166,776 km (0.072 R)
• M5: 2,883,798 km (0.116 R)
• M6: 3,407,092 km (0.037 R)
• M7: 4,266,082 km (0.089 R)
• M8: 5,346,478 km (0.039 R)
• M9: 5,937,091 km (0.044 R)
• M10: 6,477,887 km (0.099 R)
• M11: 7,418,708 km (0.116 R)
• M12: 8,301,335 km (0.066 R)
• M13: 8,863,973 km (0.085 R)
• M14: 9,735,081 km (0.12 R)
• M15: 10,925,880 km (0.085 R)
• M16: 11,787,714 km (0.066 R)
• M17: 15,082,757 km (0.105 R)
• M18: 16,441,554 km (0.107 R)
• M19: 19,663,443 km (0.109 R)
• M20: 21,214,773 km (0.09 R)
• M21: 23,506,912 km (0.067 R)
• M22: 24,483,786 km (0.1 R)
• M23: 25,565,827 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 732.6

Radius: 11.2

Gravity: 5.84 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 5.03 AU - 6.71 AU

Year: 5169 Days

Day: 8.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 46,542,831 km

• M1: 139,724 km (0.072 R)
• M2: 595,848 km (0.104 R)
• M3: 954,434 km (0.068 R)
• M4: 1,475,334 km (0.054 R)
• M5: 2,032,586 km (0.116 R)
• M6: 2,835,029 km (0.113 R)
• M7: 3,218,748 km (0.081 R)
• M8: 4,333,252 km (0.096 R)
• M9: 6,208,760 km (0.111 R)
• M10: 6,561,811 km (0.11 R)
• M11: 7,961,299 km (0.074 R)
• M12: 8,652,142 km (0.12 R)
• M13: 9,299,452 km (0.036 R)
• M14: 11,919,958 km (0.037 R)
• M15: 13,346,374 km (0.082 R)
• M16: 14,211,050 km (0.097 R)
• M17: 18,241,516 km (0.081 R)
• M18: 19,922,846 km (0.066 R)
• M19: 20,411,582 km (0.119 R)
• M20: 23,591,584 km (0.072 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.7

Radius: 11.7

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 6.02 AU - 6.96 AU

Year: 6009 Days

Day: 13.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 46,542,831 km

• M1: 145,559 km (0.117 R)
• M2: 738,565 km (0.058 R)
• M3: 1,150,108 km (0.088 R)
• M4: 1,517,222 km (0.043 R)
• M5: 2,532,094 km (0.07 R)
• M6: 3,505,078 km (0.062 R)
• M7: 4,392,941 km (0.061 R)
• M8: 6,643,342 km (0.116 R)
• M9: 7,300,376 km (0.054 R)
• M10: 8,705,848 km (0.038 R)
• M11: 9,452,790 km (0.075 R)
• M12: 10,456,592 km (0.117 R)
• M13: 11,029,253 km (0.041 R)
• M14: 12,093,791 km (0.095 R)
• M15: 12,824,128 km (0.07 R)
• M16: 15,360,111 km (0.113 R)
• M17: 15,870,389 km (0.063 R)
• M18: 16,391,887 km (0.118 R)
• M19: 17,105,021 km (0.093 R)
• M20: 18,150,710 km (0.07 R)
• M21: 19,765,020 km (0.111 R)
• M22: 22,255,077 km (0.052 R)
• M23: 22,908,820 km (0.117 R)
• M24: 27,022,013 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 789.7

Radius: 8.4

Gravity: 11.19 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 7.33 AU - 9.55 AU

Year: 8911 Days

Day: 10.1 Hours

Environment

Temp: -173 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 46,542,831 km

• M1: 106,065 km (0.098 R)
• M2: 417,976 km (0.095 R)
• M3: 707,149 km (0.094 R)
• M4: 1,018,462 km (0.095 R)
• M5: 1,345,782 km (0.117 R)
• M6: 2,095,567 km (0.045 R)
• M7: 2,553,336 km (0.073 R)
• M8: 2,816,928 km (0.081 R)
• M9: 3,281,728 km (0.109 R)
• M10: 3,644,204 km (0.044 R)
• M11: 4,536,705 km (0.098 R)
• M12: 7,872,887 km (0.107 R)
• M13: 8,172,681 km (0.097 R)
• M14: 9,545,242 km (0.116 R)
• M15: 9,886,474 km (0.095 R)
• M16: 10,286,350 km (0.115 R)
• M17: 11,171,969 km (0.107 R)
• M18: 12,164,252 km (0.064 R)
• M19: 12,857,638 km (0.116 R)
• M20: 18,244,059 km (0.117 R)
• M21: 25,522,145 km (0.071 R)
• M22: 26,085,680 km (0.084 R)
• M23: 29,848,366 km (0.069 R)
• M24: 30,264,397 km (0.026 R)
• M25: 31,107,980 km (0.082 R)
• M26: 35,562,555 km (0.092 R)
• M27: 36,265,516 km (0.078 R)

Kuiper Belt

Range: 30.2 - 56.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 396 - 14,110 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit