🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.36

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.65 AU - 1.05 AU

Year: 277 Days

Day: 29.2 Hours

Environment

Temp: 103 °C

Axial Tilt: 0.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.49

Radius: 1.17

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.92 AU - 1.2 AU

Year: 385 Days

Day: 20.3 Hours

Environment

Temp: 79 °C

Axial Tilt: 65.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.77

Radius: 0.9

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.02 AU - 1.24 AU

Year: 424 Days

Day: 38.4 Hours

Environment

Temp: 41 °C

Axial Tilt: 5.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.8

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.32 AU - 1.92 AU

Year: 728 Days

Day: 12.2 Hours

Environment

Temp: -22 °C

Axial Tilt: 50 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,458,523 km

• M1: 56,099 km (0.093 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.55

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 1.53 AU - 2.47 AU

Year: 999 Days

Day: 15.9 Hours

Environment

Temp: -64 °C

Axial Tilt: 34.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,458,523 km

• M1: 575,653 km (0.095 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.34

Radius: 1.12

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 2.3 AU - 2.68 AU

Year: 1387 Days

Day: 21.7 Hours

Environment

Temp: -82 °C

Axial Tilt: 3.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.21

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 2.93 AU - 3.95 AU

Year: 2253 Days

Day: 35.2 Hours

Environment

Temp: -112 °C

Axial Tilt: 9.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.98

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 4.21 AU - 4.71 AU

Year: 3326 Days

Day: 18.1 Hours

Environment

Temp: -132 °C

Axial Tilt: 10.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,458,523 km

• M1: 128,205 km (0.074 R)

Planet 9 - Gas Giant

Semi-Major Axis: 12.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 873

Radius: 8.2

Gravity: 12.98 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 12.37 AU - 13.43 AU

Year: 16360 Days

Day: 9.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 72,458,523 km

• M1: 102,026 km (0.076 R)
• M2: 661,223 km (0.098 R)
• M3: 1,227,750 km (0.106 R)
• M4: 1,616,854 km (0.068 R)
• M5: 3,138,563 km (0.116 R)
• M6: 3,692,823 km (0.071 R)
• M7: 5,364,280 km (0.108 R)
• M8: 5,951,452 km (0.118 R)
• M9: 6,537,277 km (0.12 R)
• M10: 10,291,735 km (0.116 R)
• M11: 15,432,965 km (0.08 R)
• M12: 21,291,218 km (0.053 R)
• M13: 26,883,485 km (0.091 R)
• M14: 28,945,692 km (0.072 R)
• M15: 30,742,961 km (0.096 R)
• M16: 35,357,606 km (0.059 R)
• M17: 36,032,891 km (0.105 R)
• M18: 38,535,664 km (0.092 R)
• M19: 41,300,681 km (0.111 R)
• M20: 45,612,391 km (0.091 R)
• M21: 47,385,275 km (0.092 R)
• M22: 49,036,536 km (0.063 R)
• M23: 50,555,104 km (0.081 R)

Planet 10 - Ice Giant

Semi-Major Axis: 13.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 699.1

Radius: 7.2

Gravity: 13.49 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 11.29 AU - 16.61 AU

Year: 18398 Days

Day: 17.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 72,458,523 km

• M1: 91,853 km (0.1 R)
• M2: 585,975 km (0.039 R)
• M3: 829,071 km (0.117 R)
• M4: 1,166,863 km (0.096 R)
• M5: 2,834,730 km (0.114 R)
• M6: 6,338,611 km (0.109 R)
• M7: 6,772,445 km (0.07 R)
• M8: 11,869,095 km (0.027 R)
• M9: 14,652,363 km (0.096 R)
• M10: 15,643,150 km (0.115 R)
• M11: 17,927,958 km (0.109 R)
• M12: 18,444,969 km (0.087 R)
• M13: 19,149,724 km (0.116 R)
• M14: 21,758,113 km (0.039 R)
• M15: 23,657,258 km (0.078 R)
• M16: 24,489,022 km (0.057 R)
• M17: 24,805,870 km (0.113 R)
• M18: 25,232,673 km (0.069 R)
• M19: 30,376,596 km (0.111 R)
• M20: 30,865,033 km (0.038 R)
• M21: 32,362,059 km (0.084 R)
• M22: 43,444,119 km (0.117 R)
• M23: 51,972,095 km (0.075 R)
• M24: 53,375,922 km (0.113 R)
• M25: 62,924,006 km (0.048 R)
• M26: 63,917,037 km (0.066 R)
• M27: 65,934,663 km (0.057 R)
• M28: 68,620,543 km (0.054 R)
• M29: 69,461,433 km (0.119 R)

Kuiper Belt

Range: 31.1 - 59.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 248 - 14,774 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit