🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.62 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.04

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 1.1 AU - 1.36 AU

Year: 491 Days

Day: 47.7 Hours

Environment

Temp: -4 °C

Axial Tilt: 19 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.77

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.6 AU - 1.8 AU

Year: 798 Days

Day: 38.2 Hours

Environment

Temp: -54 °C

Axial Tilt: 6.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 58,138,881 km

• M1: 308,022 km (0.106 R)
• M2: 721,361 km (0.101 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.69

Radius: 0.86

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.58 AU - 1.82 AU

Year: 798 Days

Day: 40.7 Hours

Environment

Temp: -34 °C

Axial Tilt: 0 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.05

Radius: 1.33

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 2.26 AU - 2.36 AU

Year: 1264 Days

Day: 30.5 Hours

Environment

Temp: -75 °C

Axial Tilt: 12 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,138,881 km

• M1: 230,830 km (0.049 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.28

Radius: 0.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.84 AU - 3 AU

Year: 1355 Days

Day: 23.4 Hours

Environment

Temp: -70 °C

Axial Tilt: 0.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.22

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 2.22 AU - 2.62 AU

Year: 1355 Days

Day: 21.6 Hours

Environment

Temp: -75 °C

Axial Tilt: 76.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52

Radius: 12.3

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 4.84 AU - 5.4 AU

Year: 4169 Days

Day: 7.7 Hours

Environment

Temp: -128 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 58,138,881 km

• M1: 165,904 km (0.1 R)
• M2: 969,095 km (0.064 R)
• M3: 3,936,668 km (0.119 R)
• M4: 5,662,279 km (0.09 R)
• M5: 6,091,476 km (0.083 R)
• M6: 9,463,711 km (0.112 R)
• M7: 10,414,555 km (0.09 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.4

Radius: 10

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 9.11 AU - 14.71 AU

Year: 14792 Days

Day: 6.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 58,138,881 km

• M1: 131,048 km (0.111 R)
• M2: 498,610 km (0.109 R)
• M3: 1,555,967 km (0.086 R)
• M4: 2,029,894 km (0.089 R)
• M5: 2,433,359 km (0.096 R)
• M6: 3,033,845 km (0.108 R)
• M7: 4,613,150 km (0.03 R)
• M8: 5,988,253 km (0.119 R)
• M9: 6,467,266 km (0.111 R)
• M10: 9,481,513 km (0.078 R)
• M11: 10,814,131 km (0.102 R)
• M12: 11,421,947 km (0.065 R)
• M13: 12,761,297 km (0.059 R)
• M14: 15,305,358 km (0.058 R)
• M15: 16,863,570 km (0.101 R)
• M16: 17,959,374 km (0.062 R)
• M17: 21,217,167 km (0.098 R)
• M18: 23,150,570 km (0.093 R)
• M19: 23,483,874 km (0.108 R)
• M20: 29,457,018 km (0.074 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 310.2

Radius: 6.3

Gravity: 7.82 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 11.98 AU - 17 AU

Year: 19851 Days

Day: 20.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 144.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 58,138,881 km

• M1: 78,838 km (0.077 R)
• M2: 363,672 km (0.118 R)
• M3: 880,982 km (0.05 R)
• M4: 1,110,615 km (0.104 R)
• M5: 1,875,808 km (0.087 R)
• M6: 3,164,743 km (0.076 R)
• M7: 3,365,952 km (0.1 R)
• M8: 3,738,750 km (0.09 R)
• M9: 4,109,304 km (0.05 R)
• M10: 4,791,919 km (0.118 R)
• M11: 5,878,448 km (0.065 R)
• M12: 7,780,136 km (0.055 R)
• M13: 8,576,296 km (0.108 R)
• M14: 9,477,175 km (0.103 R)
• M15: 10,944,281 km (0.067 R)
• M16: 11,524,272 km (0.07 R)
• M17: 16,393,982 km (0.11 R)
• M18: 17,307,277 km (0.076 R)
• M19: 19,738,093 km (0.083 R)
• M20: 21,569,171 km (0.085 R)
• M21: 23,038,222 km (0.073 R)
• M22: 23,510,652 km (0.107 R)
• M23: 26,584,888 km (0.101 R)
• M24: 28,379,614 km (0.104 R)
• M25: 28,922,355 km (0.103 R)
• M26: 31,393,412 km (0.117 R)
• M27: 32,325,856 km (0.117 R)
• M28: 33,517,104 km (0.118 R)
• M29: 38,311,416 km (0.075 R)
• M30: 38,841,142 km (0.1 R)
• M31: 41,285,721 km (0.104 R)
• M32: 41,563,524 km (0.104 R)
• M33: 41,842,674 km (0.093 R)
• M34: 50,331,156 km (0.056 R)
• M35: 51,286,189 km (0.029 R)
• M36: 52,091,325 km (0.097 R)
• M37: 56,928,123 km (0.068 R)

Kuiper Belt

Range: 30.5 - 48.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 327 - 13,143 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit