🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.65

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.55 AU - 0.61 AU

Year: 169 Days

Day: 47.7 Hours

Environment

Temp: 187 °C

Axial Tilt: 12.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.51

Radius: 0.76

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.71 AU - 0.87 AU

Year: 269 Days

Day: 22.4 Hours

Environment

Temp: 123 °C

Axial Tilt: 10.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.55

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.92 AU - 2.34 AU

Year: 1190 Days

Day: 37.8 Hours

Environment

Temp: -93 °C

Axial Tilt: 45.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 98,984,957 km

• M1: 123,119 km (0.115 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.27

Radius: 1.1

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.85 AU - 2.85 AU

Year: 1379 Days

Day: 16.1 Hours

Environment

Temp: -105 °C

Axial Tilt: 14.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 98,984,957 km

• M1: 1,436,888 km (0.083 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.91

Radius: 1.3

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 2.13 AU - 3.23 AU

Year: 1680 Days

Day: 35.2 Hours

Environment

Temp: -101 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 98,984,957 km

• M1: 558,299 km (0.086 R)
• M2: 811,120 km (0.048 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 813.5

Radius: 9.2

Gravity: 9.61 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 7.2 AU - 8.16 AU

Year: 8149 Days

Day: 7.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 98,984,957 km

• M1: 114,442 km (0.075 R)
• M2: 403,316 km (0.067 R)
• M3: 1,534,874 km (0.066 R)
• M4: 2,370,079 km (0.104 R)
• M5: 4,671,194 km (0.109 R)
• M6: 6,727,865 km (0.112 R)
• M7: 7,304,266 km (0.093 R)
• M8: 7,788,813 km (0.062 R)
• M9: 8,643,915 km (0.039 R)
• M10: 8,957,621 km (0.1 R)
• M11: 9,703,217 km (0.108 R)
• M12: 10,489,653 km (0.058 R)
• M13: 11,531,602 km (0.09 R)
• M14: 12,871,251 km (0.106 R)
• M15: 13,942,073 km (0.112 R)
• M16: 14,878,855 km (0.052 R)
• M17: 18,305,543 km (0.104 R)
• M18: 18,823,750 km (0.042 R)
• M19: 19,889,785 km (0.082 R)
• M20: 20,596,036 km (0.117 R)
• M21: 22,730,050 km (0.101 R)
• M22: 23,070,984 km (0.093 R)
• M23: 24,647,745 km (0.1 R)
• M24: 28,504,827 km (0.111 R)
• M25: 33,181,556 km (0.107 R)
• M26: 34,063,435 km (0.087 R)
• M27: 38,586,826 km (0.066 R)
• M28: 42,973,784 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 658.4

Radius: 3.7

Gravity: 48.09 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 17.85 AU - 18.99 AU

Year: 30269 Days

Day: 20.6 Hours

Environment

Temp: -208 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 98,984,957 km

• M1: 77,193 km (0.108 R)
• M2: 366,814 km (0.039 R)
• M3: 962,214 km (0.097 R)
• M4: 1,203,365 km (0.079 R)
• M5: 1,448,257 km (0.112 R)
• M6: 2,459,090 km (0.117 R)
• M7: 2,690,667 km (0.084 R)
• M8: 3,168,034 km (0.064 R)
• M9: 3,569,405 km (0.066 R)
• M10: 4,251,721 km (0.113 R)
• M11: 4,778,455 km (0.091 R)
• M12: 4,896,787 km (0.118 R)
• M13: 6,716,346 km (0.099 R)
• M14: 7,015,841 km (0.107 R)
• M15: 7,376,222 km (0.049 R)
• M16: 7,748,871 km (0.092 R)
• M17: 8,190,035 km (0.072 R)
• M18: 9,489,143 km (0.029 R)
• M19: 10,383,887 km (0.057 R)
• M20: 10,716,593 km (0.07 R)
• M21: 11,473,558 km (0.079 R)
• M22: 12,637,280 km (0.037 R)
• M23: 20,469,477 km (0.118 R)
• M24: 27,468,712 km (0.106 R)
• M25: 33,547,622 km (0.09 R)
• M26: 33,982,054 km (0.061 R)
• M27: 38,534,916 km (0.063 R)
• M28: 40,138,455 km (0.107 R)
• M29: 41,121,612 km (0.097 R)
• M30: 42,795,612 km (0.111 R)
• M31: 45,214,909 km (0.103 R)
• M32: 48,826,800 km (0.115 R)
• M33: 50,135,034 km (0.105 R)
• M34: 50,513,067 km (0.031 R)
• M35: 52,237,632 km (0.109 R)
• M36: 56,210,054 km (0.117 R)
• M37: 61,668,730 km (0.06 R)
• M38: 67,011,469 km (0.11 R)
• M39: 69,560,018 km (0.084 R)
• M40: 70,030,204 km (0.038 R)
• M41: 71,692,685 km (0.092 R)
• M42: 91,185,288 km (0.104 R)
• M43: 97,802,450 km (0.032 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: 513 - 12,339 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit