🌌 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: 2.14

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.56 AU - 0.6 AU

Year: 156 Days

Day: 26.7 Hours

Environment

Temp: 212 °C

Axial Tilt: 18.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 54,604,727 km

• M1: 178,769 km (0.077 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.39

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.47 AU - 0.77 AU

Year: 172 Days

Day: 39.4 Hours

Environment

Temp: 163 °C

Axial Tilt: 39.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 54,604,727 km

• M1: 130,001 km (0.037 R)
• M2: 194,627 km (0.095 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.95

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.64 AU - 0.98 AU

Year: 257 Days

Day: 34.1 Hours

Environment

Temp: 110 °C

Axial Tilt: 45.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 54,604,727 km

• M1: 441,164 km (0.112 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.82

Radius: 1.51

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.89 AU - 1.31 AU

Year: 407 Days

Day: 25.9 Hours

Environment

Temp: 42 °C

Axial Tilt: 46.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.49 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.16

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.48 AU - 1.5 AU

Year: 642 Days

Day: 39.3 Hours

Environment

Temp: -18 °C

Axial Tilt: 47.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 6 - Terrestrial

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.35

Radius: 1.13

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.7 AU - 2.72 AU

Year: 1160 Days

Day: 28.7 Hours

Environment

Temp: -75 °C

Axial Tilt: 49.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 5.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.9

Radius: 13.3

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 4.25 AU - 6.95 AU

Year: 4679 Days

Day: 11.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 54,604,727 km

• M1: 165,455 km (0.097 R)
• M2: 800,648 km (0.104 R)
• M3: 1,226,852 km (0.092 R)
• M4: 1,663,379 km (0.052 R)
• M5: 2,495,891 km (0.093 R)
• M6: 4,224,644 km (0.03 R)
• M7: 4,679,721 km (0.09 R)
• M8: 5,493,084 km (0.06 R)
• M9: 6,216,091 km (0.084 R)
• M10: 6,775,138 km (0.067 R)
• M11: 7,642,058 km (0.076 R)
• M12: 9,678,234 km (0.094 R)
• M13: 13,787,538 km (0.069 R)
• M14: 14,795,529 km (0.105 R)
• M15: 16,839,484 km (0.074 R)
• M16: 17,378,485 km (0.048 R)
• M17: 18,681,333 km (0.115 R)
• M18: 19,324,305 km (0.093 R)
• M19: 21,411,345 km (0.089 R)
• M20: 22,258,218 km (0.061 R)
• M21: 23,793,990 km (0.096 R)
• M22: 26,109,017 km (0.117 R)
• M23: 27,650,623 km (0.093 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.7

Radius: 8.9

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 8.53 AU - 10.99 AU

Year: 10766 Days

Day: 11.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 174 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 54,604,727 km

• M1: 110,702 km (0.054 R)
• M2: 390,002 km (0.052 R)
• M3: 693,685 km (0.06 R)
• M4: 986,000 km (0.105 R)
• M5: 1,726,359 km (0.083 R)
• M6: 2,232,449 km (0.112 R)
• M7: 4,360,628 km (0.1 R)
• M8: 5,387,468 km (0.09 R)
• M9: 6,146,079 km (0.043 R)
• M10: 8,931,741 km (0.112 R)
• M11: 13,841,992 km (0.099 R)
• M12: 15,792,748 km (0.107 R)
• M13: 18,116,302 km (0.108 R)
• M14: 19,809,750 km (0.089 R)
• M15: 24,299,631 km (0.115 R)
• M16: 26,102,734 km (0.077 R)
• M17: 27,643,143 km (0.111 R)
• M18: 29,062,378 km (0.118 R)
• M19: 30,997,876 km (0.09 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 299.2

Radius: 3.5

Gravity: 24.42 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 13.35 AU - 14.55 AU

Year: 18398 Days

Day: 22.2 Hours

Environment

Temp: -186 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 54,604,727 km

• M1: 43,533 km (0.114 R)
• M2: 169,046 km (0.097 R)
• M3: 1,732,643 km (0.08 R)
• M4: 2,382,795 km (0.069 R)
• M5: 3,108,943 km (0.09 R)
• M6: 3,887,151 km (0.027 R)
• M7: 4,411,791 km (0.076 R)
• M8: 5,048,629 km (0.052 R)
• M9: 5,564,891 km (0.115 R)
• M10: 5,965,065 km (0.113 R)
• M11: 6,115,411 km (0.118 R)
• M12: 7,154,219 km (0.096 R)
• M13: 7,323,713 km (0.099 R)
• M14: 8,351,750 km (0.115 R)
• M15: 10,416,051 km (0.038 R)
• M16: 10,744,269 km (0.081 R)
• M17: 11,947,036 km (0.099 R)
• M18: 12,427,843 km (0.119 R)
• M19: 15,305,657 km (0.096 R)
• M20: 16,161,357 km (0.108 R)
• M21: 16,307,065 km (0.112 R)
• M22: 18,677,893 km (0.055 R)
• M23: 20,070,798 km (0.094 R)
• M24: 22,332,718 km (0.059 R)
• M25: 24,758,896 km (0.104 R)
• M26: 25,147,103 km (0.089 R)
• M27: 27,355,018 km (0.05 R)
• M28: 32,382,105 km (0.099 R)
• M29: 32,497,744 km (0.098 R)
• M30: 33,669,394 km (0.12 R)
• M31: 34,868,720 km (0.074 R)
• M32: 46,234,568 km (0.055 R)
• M33: 50,769,777 km (0.107 R)
• M34: 53,466,877 km (0.064 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: 367 - 13,043 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit