🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.87

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.49 AU - 0.71 AU

Year: 177 Days

Day: 43.3 Hours

Environment

Temp: 169 °C

Axial Tilt: 39.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 21,510,376 km

• M1: 75,846 km (0.102 R)
• M2: 364,720 km (0.087 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.59

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.48 AU - 0.8 AU

Year: 195 Days

Day: 26.6 Hours

Environment

Temp: 133 °C

Axial Tilt: 29.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.39

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.93 AU - 1.35 AU

Year: 464 Days

Day: 20.4 Hours

Environment

Temp: -10 °C

Axial Tilt: 135.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.51

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.7 AU - 2.24 AU

Year: 1053 Days

Day: 34.1 Hours

Environment

Temp: -70 °C

Axial Tilt: 4.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.28

Radius: 1.39

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 2.5 AU - 3.82 AU

Year: 2139 Days

Day: 42.6 Hours

Environment

Temp: -120 °C

Axial Tilt: 10.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 21,510,376 km

• M1: 35,305 km (0.11 R)
• M2: 1,912,010 km (0.072 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.22

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 3.93 AU - 4.01 AU

Year: 3012 Days

Day: 24.4 Hours

Environment

Temp: -128 °C

Axial Tilt: 5.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 21,510,376 km

• M1: 74,649 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704

Radius: 8.8

Gravity: 9.09 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 7.3 AU - 9.3 AU

Year: 9106 Days

Day: 11.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 21,510,376 km

• M1: 109,506 km (0.108 R)
• M2: 445,652 km (0.08 R)
• M3: 843,582 km (0.042 R)
• M4: 1,249,741 km (0.061 R)
• M5: 1,637,049 km (0.03 R)
• M6: 2,154,808 km (0.115 R)
• M7: 6,337,714 km (0.091 R)
• M8: 6,669,372 km (0.065 R)
• M9: 8,156,375 km (0.086 R)
• M10: 8,682,960 km (0.112 R)
• M11: 11,662,351 km (0.108 R)
• M12: 12,444,748 km (0.05 R)
• M13: 13,805,340 km (0.068 R)
• M14: 16,610,749 km (0.105 R)
• M15: 16,959,761 km (0.06 R)
• M16: 17,313,859 km (0.106 R)
• M17: 18,257,223 km (0.119 R)
• M18: 19,775,193 km (0.119 R)
• M19: 26,597,005 km (0.118 R)
• M20: 29,450,136 km (0.069 R)
• M21: 31,320,259 km (0.038 R)
• M22: 32,284,268 km (0.086 R)
• M23: 32,719,149 km (0.119 R)
• M24: 34,951,897 km (0.108 R)
• M25: 36,809,753 km (0.06 R)
• M26: 39,718,683 km (0.073 R)
• M27: 43,963,673 km (0.068 R)
• M28: 44,363,997 km (0.032 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 651.4

Radius: 14.7

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 9.5 AU - 11.22 AU

Year: 12698 Days

Day: 6 Hours

Environment

Temp: -185 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 21,510,376 km

• M1: 188,194 km (0.111 R)
• M2: 810,372 km (0.117 R)
• M3: 1,328,579 km (0.061 R)
• M4: 1,988,006 km (0.091 R)
• M5: 4,177,521 km (0.107 R)
• M6: 4,748,685 km (0.041 R)
• M7: 5,580,150 km (0.105 R)
• M8: 6,199,485 km (0.087 R)
• M9: 13,122,576 km (0.115 R)
• M10: 19,568,748 km (0.107 R)
• M11: 25,628,210 km (0.048 R)
• M12: 35,590,979 km (0.075 R)
• M13: 41,151,831 km (0.098 R)
• M14: 49,534,548 km (0.065 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 27

Radius: 12.4

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 10.07 AU - 13.23 AU

Year: 15142 Days

Day: 14.2 Hours

Environment

Temp: -177 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 21,510,376 km

• M1: 588,668 km (0.063 R)
• M2: 1,061,995 km (0.115 R)
• M3: 3,333,639 km (0.101 R)
• M4: 4,495,865 km (0.087 R)
• M5: 5,049,527 km (0.053 R)
• M6: 7,292,597 km (0.115 R)
• M7: 7,895,177 km (0.049 R)
• M8: 8,360,127 km (0.095 R)
• M9: 10,249,848 km (0.103 R)
• M10: 12,453,873 km (0.108 R)
• M11: 13,832,866 km (0.1 R)
• M12: 16,838,288 km (0.049 R)
• M13: 19,826,804 km (0.034 R)
• M14: 20,377,773 km (0.092 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 344 - 11,472 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit